hg/html~html4j: json/src/main/java/org/netbeans/html/json/impl/ModelProcessor.java@02568f34628a

     1 /**

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

     5  *

     6  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

     7  * Other names may be trademarks of their respective owners.

     8  *

     9  * The contents of this file are subject to the terms of either the GNU

    10  * General Public License Version 2 only ("GPL") or the Common

    11  * Development and Distribution License("CDDL") (collectively, the

    12  * "License"). You may not use this file except in compliance with the

    13  * License. You can obtain a copy of the License at

    14  * http://www.netbeans.org/cddl-gplv2.html

    15  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

    16  * specific language governing permissions and limitations under the

    17  * License.  When distributing the software, include this License Header

    18  * Notice in each file and include the License file at

    19  * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

    20  * particular file as subject to the "Classpath" exception as provided

    21  * by Oracle in the GPL Version 2 section of the License file that

    22  * accompanied this code. If applicable, add the following below the

    23  * License Header, with the fields enclosed by brackets [] replaced by

    24  * your own identifying information:

    25  * "Portions Copyrighted [year] [name of copyright owner]"

    26  *

    27  * Contributor(s):

    28  *

    29  * The Original Software is NetBeans. The Initial Developer of the Original

    30  * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

    31  *

    32  * If you wish your version of this file to be governed by only the CDDL

    33  * or only the GPL Version 2, indicate your decision by adding

    34  * "[Contributor] elects to include this software in this distribution

    35  * under the [CDDL or GPL Version 2] license." If you do not indicate a

    36  * single choice of license, a recipient has the option to distribute

    37  * your version of this file under either the CDDL, the GPL Version 2 or

    38  * to extend the choice of license to its licensees as provided above.

    39  * However, if you add GPL Version 2 code and therefore, elected the GPL

    40  * Version 2 license, then the option applies only if the new code is

    41  * made subject to such option by the copyright holder.

    42  */

    43 package org.netbeans.html.json.impl;

    45 import java.io.IOException;

    46 import java.io.OutputStreamWriter;

    47 import java.io.StringWriter;

    48 import java.io.Writer;

    49 import java.lang.annotation.AnnotationTypeMismatchException;

    50 import java.lang.annotation.IncompleteAnnotationException;

    51 import java.lang.reflect.Method;

    52 import java.util.ArrayList;

    53 import java.util.Arrays;

    54 import java.util.Collection;

    55 import java.util.Collections;

    56 import java.util.HashMap;

    57 import java.util.HashSet;

    58 import java.util.LinkedHashSet;

    59 import java.util.List;

    60 import java.util.Map;

    61 import java.util.ResourceBundle;

    62 import java.util.Set;

    63 import java.util.WeakHashMap;

    64 import java.util.logging.Level;

    65 import java.util.logging.Logger;

    66 import javax.annotation.processing.AbstractProcessor;

    67 import javax.annotation.processing.Completion;

    68 import javax.annotation.processing.Completions;

    69 import javax.annotation.processing.ProcessingEnvironment;

    70 import javax.annotation.processing.Processor;

    71 import javax.annotation.processing.RoundEnvironment;

    72 import javax.annotation.processing.SupportedAnnotationTypes;

    73 import javax.annotation.processing.SupportedSourceVersion;

    74 import javax.lang.model.SourceVersion;

    75 import javax.lang.model.element.AnnotationMirror;

    76 import javax.lang.model.element.AnnotationValue;

    77 import javax.lang.model.element.Element;

    78 import javax.lang.model.element.ElementKind;

    79 import javax.lang.model.element.ExecutableElement;

    80 import javax.lang.model.element.Modifier;

    81 import javax.lang.model.element.PackageElement;

    82 import javax.lang.model.element.TypeElement;

    83 import javax.lang.model.element.VariableElement;

    84 import javax.lang.model.type.ArrayType;

    85 import javax.lang.model.type.DeclaredType;

    86 import javax.lang.model.type.MirroredTypeException;

    87 import javax.lang.model.type.TypeKind;

    88 import javax.lang.model.type.TypeMirror;

    89 import javax.lang.model.util.Elements;

    90 import javax.lang.model.util.Types;

    91 import javax.tools.Diagnostic;

    92 import javax.tools.FileObject;

    93 import net.java.html.json.ComputedProperty;

    94 import net.java.html.json.Function;

    95 import net.java.html.json.Model;

    96 import net.java.html.json.ModelOperation;

    97 import net.java.html.json.OnPropertyChange;

    98 import net.java.html.json.OnReceive;

    99 import net.java.html.json.Property;

   100 import org.openide.util.lookup.ServiceProvider;

   102 /** Annotation processor to process {@link Model @Model} annotations and

   103  * generate appropriate model classes.

   104  *

   105  * @author Jaroslav Tulach

   106  */

   107 @ServiceProvider(service=Processor.class)

   108 @SupportedSourceVersion(SourceVersion.RELEASE_6)

   109 @SupportedAnnotationTypes({

   110     "net.java.html.json.Model",

   111     "net.java.html.json.ModelOperation",

   112     "net.java.html.json.Function",

   113     "net.java.html.json.OnReceive",

   114     "net.java.html.json.OnPropertyChange",

   115     "net.java.html.json.ComputedProperty",

   116     "net.java.html.json.Property"

   117 })

   118 public final class ModelProcessor extends AbstractProcessor {

   119     private static final Logger LOG = Logger.getLogger(ModelProcessor.class.getName());

   120     private final Map<Element,String> models = new WeakHashMap<Element,String>();

   121     private final Map<Element,Prprt[]> verify = new WeakHashMap<Element,Prprt[]>();

   122     @Override

   123     public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

   124         boolean ok = true;

   125         for (Element e : roundEnv.getElementsAnnotatedWith(Model.class)) {

   126             if (!processModel(e)) {

   127                 ok = false;

   128             }

   129         }

   130         if (roundEnv.processingOver()) {

   131             models.clear();

   132             for (Map.Entry<Element, Prprt[]> entry : verify.entrySet()) {

   133                 TypeElement te = (TypeElement)entry.getKey();

   134                 String fqn = te.getQualifiedName().toString();

   135                 Element finalElem = processingEnv.getElementUtils().getTypeElement(fqn);

   136                 if (finalElem == null) {

   137                     continue;

   138                 }

   139                 Prprt[] props;

   140                 Model m = finalElem.getAnnotation(Model.class);

   141                 if (m == null) {

   142                     continue;

   143                 }

   144                 props = Prprt.wrap(processingEnv, finalElem, m.properties());

   145                 for (Prprt p : props) {

   146                     boolean[] isModel = { false };

   147                     boolean[] isEnum = { false };

   148                     boolean[] isPrimitive = { false };

   149                     String t = checkType(p, isModel, isEnum, isPrimitive);

   150                     if (isEnum[0]) {

   151                         continue;

   152                     }

   153                     if (isPrimitive[0]) {

   154                         continue;

   155                     }

   156                     if (isModel[0]) {

   157                         continue;

   158                     }

   159                     if ("java.lang.String".equals(t)) {

   160                         continue;

   161                     }

   162                     error("The type " + t + " should be defined by @Model annotation", entry.getKey());

   163                 }

   164             }

   165             verify.clear();

   166         }

   167         return ok;

   168     }

   170     private void error(String msg, Element e) {

   171         processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, msg, e);

   172     }

   174     private boolean processModel(Element e) {

   175         boolean ok = true;

   176         Model m = e.getAnnotation(Model.class);

   177         if (m == null) {

   178             return true;

   179         }

   180         String pkg = findPkgName(e);

   181         Writer w;

   182         String className = m.className();

   183         models.put(e, className);

   184         try {

   185             StringWriter body = new StringWriter();

   186             StringBuilder onReceiveType = new StringBuilder();

   187             List<GetSet> propsGetSet = new ArrayList<GetSet>();

   188             List<Object> functions = new ArrayList<Object>();

   189             Map<String, Collection<String[]>> propsDeps = new HashMap<String, Collection<String[]>>();

   190             Map<String, Collection<String>> functionDeps = new HashMap<String, Collection<String>>();

   191             Prprt[] props = createProps(e, m.properties());

   192             final String builderPrefix = findBuilderPrefix(e, m);

   194             if (!generateComputedProperties(className, body, props, e.getEnclosedElements(), propsGetSet, propsDeps)) {

   195                 ok = false;

   196             }

   197             if (!generateOnChange(e, propsDeps, props, className, functionDeps)) {

   198                 ok = false;

   199             }

   200             if (!generateProperties(e, builderPrefix, body, className, props, propsGetSet, propsDeps, functionDeps)) {

   201                 ok = false;

   202             }

   203             if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {

   204                 ok = false;

   205             }

   206             int functionsCount = functions.size() / 2;

   207             for (int i = 0; i < functions.size(); i += 2) {

   208                 for (Prprt p : props) {

   209                     if (p.name().equals(functions.get(i))) {

   210                         error("Function cannot have the name of an existing property", e);

   211                         ok = false;

   212                     }

   213                 }

   214             }

   215             if (!generateReceive(e, body, className, e.getEnclosedElements(), onReceiveType)) {

   216                 ok = false;

   217             }

   218             if (!generateOperation(e, body, className, e.getEnclosedElements(), functions)) {

   219                 ok = false;

   220             }

   221             FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);

   222             w = new OutputStreamWriter(java.openOutputStream());

   223             try {

   224                 w.append("package " + pkg + ";\n");

   225                 w.append("import net.java.html.json.*;\n");

   226                 final String inPckName = inPckName(e, false);

   227                 w.append("/** Generated for {@link ").append(inPckName).append("}*/\n");

   228                 w.append("public final class ").append(className).append(" implements Cloneable {\n");

   229                 w.append("  private static Class<").append(inPckName).append("> modelFor() { return ").append(inPckName).append(".class; }\n");

   230                 w.append("  private static final Html4JavaType TYPE = new Html4JavaType();\n");

   231                 if (m.instance()) {

   232                     int cCnt = 0;

   233                     for (Element c : e.getEnclosedElements()) {

   234                         if (c.getKind() != ElementKind.CONSTRUCTOR) {

   235                             continue;

   236                         }

   237                         cCnt++;

   238                         ExecutableElement ec = (ExecutableElement) c;

   239                         if (ec.getParameters().size() > 0) {

   240                             continue;

   241                         }

   242                         if (ec.getModifiers().contains(Modifier.PRIVATE)) {

   243                             continue;

   244                         }

   245                         cCnt = 0;

   246                         break;

   247                     }

   248                     if (cCnt > 0) {

   249                         ok = false;

   250                         error("Needs non-private default constructor when instance=true", e);

   251                         w.append("  private final ").append(inPckName).append(" instance = null;\n");

   252                     } else {

   253                         w.append("  private final ").append(inPckName).append(" instance = new ").append(inPckName).append("();\n");

   254                     }

   255                 }

   256                 w.append("  private final org.netbeans.html.json.spi.Proto proto;\n");

   257                 w.append(body.toString());

   258                 w.append("  private ").append(className).append("(net.java.html.BrwsrCtx context) {\n");

   259                 w.append("    this.proto = TYPE.createProto(this, context);\n");

   260                 for (Prprt p : props) {

   261                     if (p.array()) {

   262                         final String tn = typeName(p);

   263                         String[] gs = toGetSet(p.name(), tn, p.array());

   264                         w.write("    this.prop_" + p.name() + " = proto.createList(\""

   265                             + p.name() + "\"");

   266                         if (functionDeps.containsKey(p.name())) {

   267                             int index = Arrays.asList(functionDeps.keySet().toArray()).indexOf(p.name());

   268                             w.write(", " + index);

   269                         } else {

   270                             w.write(", -1");

   271                         }

   272                         Collection<String[]> dependants = propsDeps.get(p.name());

   273                         if (dependants != null) {

   274                             for (String[] depProp : dependants) {

   275                                 w.write(", ");

   276                                 w.write('\"');

   277                                 w.write(depProp[0]);

   278                                 w.write('\"');

   279                             }

   280                         }

   281                         w.write(")");

   282                         w.write(";\n");

   283                     }

   284                 }

   285                 w.append("  };\n");

   286                 w.append("  public ").append(className).append("() {\n");

   287                 w.append("    this(net.java.html.BrwsrCtx.findDefault(").append(className).append(".class));\n");

   288                 for (Prprt p : props) {

   289                     if (!p.array()) {

   290                         boolean[] isModel = {false};

   291                         boolean[] isEnum = {false};

   292                         boolean isPrimitive[] = {false};

   293                         String tn = checkType(p, isModel, isEnum, isPrimitive);

   294                         if (isModel[0]) {

   295                             w.write("    prop_" + p.name() + " = new " + tn + "();\n");

   296                         }

   297                     }

   298                 }

   299                 w.append("  };\n");

   300                 if (props.length > 0 && builderPrefix == null) {

   301                     StringBuilder constructorWithArguments = new StringBuilder();

   302                     constructorWithArguments.append("  public ").append(className).append("(");

   303                     Prprt firstArray = null;

   304                     String sep = "";

   305                     int parameterCount = 0;

   306                     for (Prprt p : props) {

   307                         if (p.array()) {

   308                             if (firstArray == null) {

   309                                 firstArray = p;

   310                             }

   311                             continue;

   312                         }

   313                         String tn = typeName(p);

   314                         constructorWithArguments.append(sep);

   315                         constructorWithArguments.append(tn);

   316                         String[] third = toGetSet(p.name(), tn, false);

   317                         constructorWithArguments.append(" ").append(third[2]);

   318                         sep = ", ";

   319                         parameterCount++;

   320                     }

   321                     if (firstArray != null) {

   322                         String tn;

   323                         boolean[] isModel = {false};

   324                         boolean[] isEnum = {false};

   325                         boolean isPrimitive[] = {false};

   326                         tn = checkType(firstArray, isModel, isEnum, isPrimitive);

   327                         constructorWithArguments.append(sep);

   328                         constructorWithArguments.append(tn);

   329                         String[] third = toGetSet(firstArray.name(), tn, true);

   330                         constructorWithArguments.append("... ").append(third[2]);

   331                         parameterCount++;

   332                     }

   333                     constructorWithArguments.append(") {\n");

   334                     constructorWithArguments.append("    this(net.java.html.BrwsrCtx.findDefault(").append(className).append(".class));\n");

   335                     for (Prprt p : props) {

   336                         if (p.array()) {

   337                             continue;

   338                         }

   339                         String[] third = toGetSet(p.name(), null, false);

   340                         constructorWithArguments.append("    this.prop_" + p.name() + " = " + third[2] + ";\n");

   341                     }

   342                     if (firstArray != null) {

   343                         String[] third = toGetSet(firstArray.name(), null, true);

   344                         constructorWithArguments.append("    proto.initTo(this.prop_" + firstArray.name() + ", " + third[2] + ");\n");

   345                     }

   346                     constructorWithArguments.append("  };\n");

   347                     if (parameterCount < 255) {

   348                         w.write(constructorWithArguments.toString());

   349                     }

   350                 }

   351                 w.append("  private static class Html4JavaType extends org.netbeans.html.json.spi.Proto.Type<").append(className).append("> {\n");

   352                 w.append("    private Html4JavaType() {\n      super(").append(className).append(".class, ").

   353                     append(inPckName).append(".class, " + propsGetSet.size() + ", "

   354                     + functionsCount + ");\n");

   355                 {

   356                     for (int i = 0; i < propsGetSet.size(); i++) {

   357                         w.append("      registerProperty(\"").append(propsGetSet.get(i).name).append("\", ");

   358                         w.append((i) + ", " + propsGetSet.get(i).readOnly + ");\n");

   359                     }

   360                 }

   361                 {

   362                     for (int i = 0; i < functionsCount; i++) {

   363                         w.append("      registerFunction(\"").append((String)functions.get(i * 2)).append("\", ");

   364                         w.append(i + ");\n");

   365                     }

   366                 }

   367                 w.append("    }\n");

   368                 w.append("    @Override public void setValue(" + className + " data, int type, Object value) {\n");

   369                 w.append("      switch (type) {\n");

   370                 for (int i = 0; i < propsGetSet.size(); i++) {

   371                     final GetSet pgs = propsGetSet.get(i);

   372                     if (pgs.readOnly) {

   373                         continue;

   374                     }

   375                     final String set = pgs.setter;

   376                     String tn = pgs.type;

   377                     String btn = findBoxedType(tn);

   378                     if (btn != null) {

   379                         tn = btn;

   380                     }

   381                     w.append("        case " + i + ": ");

   382                     if (pgs.setter != null) {

   383                         w.append("data.").append(strip(pgs.setter)).append("(TYPE.extractValue(" + tn + ".class, value)); return;\n");

   384                     } else {

   385                         w.append("TYPE.replaceValue(data.").append(strip(pgs.getter)).append("(), " + tn + ".class, value); return;\n");

   386                     }

   387                 }

   388                 w.append("      }\n");

   389                 w.append("      throw new UnsupportedOperationException();\n");

   390                 w.append("    }\n");

   391                 w.append("    @Override public Object getValue(" + className + " data, int type) {\n");

   392                 w.append("      switch (type) {\n");

   393                 for (int i = 0; i < propsGetSet.size(); i++) {

   394                     final String get = propsGetSet.get(i).getter;

   395                     if (get != null) {

   396                         w.append("        case " + i + ": return data." + strip(get) + "();\n");

   397                     }

   398                 }

   399                 w.append("      }\n");

   400                 w.append("      throw new UnsupportedOperationException();\n");

   401                 w.append("    }\n");

   402                 w.append("    @Override public void call(" + className + " model, int type, Object data, Object ev) throws Exception {\n");

   403                 w.append("      switch (type) {\n");

   404                 for (int i = 0; i < functions.size(); i += 2) {

   405                     final String name = (String)functions.get(i);

   406                     final Object param = functions.get(i + 1);

   407                     if (param instanceof ExecutableElement) {

   408                         ExecutableElement ee = (ExecutableElement)param;

   409                         w.append("        case " + (i / 2) + ":\n");

   410                         w.append("          ");

   411                         if (m.instance()) {

   412                             w.append("model.instance");

   413                         } else {

   414                             w.append(((TypeElement)e).getQualifiedName());

   415                         }

   416                         w.append(".").append(name).append("(");

   417                         w.append(wrapParams(ee, null, className, "model", "ev", "data"));

   418                         w.append(");\n");

   419                         w.append("          return;\n");

   420                     } else {

   421                         String call = (String)param;

   422                         w.append("        case " + (i / 2) + ":\n"); // model." + name + "(data, ev); return;\n");

   423                         w.append("          ").append(call).append("\n");

   424                         w.append("          return;\n");

   426                     }

   427                 }

   428                 w.append("      }\n");

   429                 w.append("      throw new UnsupportedOperationException();\n");

   430                 w.append("    }\n");

   431                 w.append("    @Override public org.netbeans.html.json.spi.Proto protoFor(Object obj) {\n");

   432                 w.append("      return ((" + className + ")obj).proto;");

   433                 w.append("    }\n");

   434                 w.append("    @Override public void onChange(" + className + " model, int type) {\n");

   435                 w.append("      switch (type) {\n");

   436                 {

   437                     String[] arr = functionDeps.keySet().toArray(new String[0]);

   438                     for (int i = 0; i < arr.length; i++) {

   439                         Collection<String> onChange = functionDeps.get(arr[i]);

   440                         if (onChange != null) {

   441                             w.append("      case " + i + ":\n");

   442                             for (String call : onChange) {

   443                                 w.append("      ").append(call).append("\n");

   444                             }

   445                             w.write("      return;\n");

   446                         }

   447                     }

   448                 }

   449                 w.append("    }\n");

   450                 w.append("      throw new UnsupportedOperationException();\n");

   451                 w.append("    }\n");

   452                 w.append(onReceiveType);

   453                 w.append("    @Override public " + className + " read(net.java.html.BrwsrCtx c, Object json) { return new " + className + "(c, json); }\n");

   454                 w.append("    @Override public " + className + " cloneTo(" + className + " o, net.java.html.BrwsrCtx c) { return o.clone(c); }\n");

   455                 w.append("  }\n");

   456                 w.append("  private ").append(className).append("(net.java.html.BrwsrCtx c, Object json) {\n");

   457                 w.append("    this(c);\n");

   458                 int values = 0;

   459                 for (int i = 0; i < propsGetSet.size(); i++) {

   460                     Prprt p = findPrprt(props, propsGetSet.get(i).name);

   461                     if (p == null) {

   462                         continue;

   463                     }

   464                     values++;

   465                 }

   466                 w.append("    Object[] ret = new Object[" + values + "];\n");

   467                 w.append("    proto.extract(json, new String[] {\n");

   468                 for (int i = 0; i < propsGetSet.size(); i++) {

   469                     Prprt p = findPrprt(props, propsGetSet.get(i).name);

   470                     if (p == null) {

   471                         continue;

   472                     }

   473                     w.append("      \"").append(propsGetSet.get(i).name).append("\",\n");

   474                 }

   475                 w.append("    }, ret);\n");

   476                 for (int i = 0, cnt = 0, prop = 0; i < propsGetSet.size(); i++) {

   477                     final String pn = propsGetSet.get(i).name;

   478                     Prprt p = findPrprt(props, pn);

   479                     if (p == null || prop >= props.length) {

   480                         continue;

   481                     }

   482                     boolean[] isModel = { false };

   483                     boolean[] isEnum = { false };

   484                     boolean isPrimitive[] = { false };

   485                     String type = checkType(props[prop++], isModel, isEnum, isPrimitive);

   486                     if (p.array()) {

   487                         w.append("    for (Object e : useAsArray(ret[" + cnt + "])) {\n");

   488                         if (isModel[0]) {

   489                             w.append("      this.prop_").append(pn).append(".add(proto.read");

   490                             w.append("(" + type + ".class, e));\n");

   491                         } else if (isEnum[0]) {

   492                             w.append("        this.prop_").append(pn);

   493                             w.append(".add(e == null ? null : ");

   494                             w.append(type).append(".valueOf(TYPE.stringValue(e)));\n");

   495                         } else {

   496                             if (isPrimitive(type)) {

   497                                 if (type.equals("char")) {

   498                                     w.append("        this.prop_").append(pn).append(".add((char)TYPE.numberValue(e).");

   499                                     w.append("intValue());\n");

   500                                 } else {

   501                                     w.append("        this.prop_").append(pn).append(".add(TYPE.numberValue(e).");

   502                                     w.append(type).append("Value());\n");

   503                                 }

   504                             } else {

   505                                 w.append("        this.prop_").append(pn).append(".add((");

   506                                 w.append(type).append(")e);\n");

   507                             }

   508                         }

   509                         w.append("    }\n");

   510                     } else {

   511                         if (isEnum[0]) {

   512                             w.append("    try {\n");

   513                             w.append("    this.prop_").append(pn);

   514                             w.append(" = ret[" + cnt + "] == null ? null : ");

   515                             w.append(type).append(".valueOf(TYPE.stringValue(ret[" + cnt + "]));\n");

   516                             w.append("    } catch (IllegalArgumentException ex) {\n");

   517                             w.append("      ex.printStackTrace();\n");

   518                             w.append("    }\n");

   519                         } else if (isPrimitive(type)) {

   520                             w.append("    this.prop_").append(pn);

   521                             w.append(" = ret[" + cnt + "] == null ? ");

   522                             if ("char".equals(type)) {

   523                                 w.append("0 : (TYPE.charValue(");

   524                             } else if ("boolean".equals(type)) {

   525                                 w.append("false : (TYPE.boolValue(");

   526                             } else {

   527                                 w.append("0 : (TYPE.numberValue(");

   528                             }

   529                             w.append("ret[" + cnt + "])).");

   530                             w.append(type).append("Value();\n");

   531                         } else if (isModel[0]) {

   532                             w.append("    this.prop_").append(pn).append(" = proto.read");

   533                             w.append("(" + type + ".class, ");

   534                             w.append("ret[" + cnt + "]);\n");

   535                         }else {

   536                             w.append("    this.prop_").append(pn);

   537                             w.append(" = (").append(type).append(')');

   538                             w.append("ret[" + cnt + "];\n");

   539                         }

   540                     }

   541                     cnt++;

   542                 }

   543                 w.append("  }\n");

   544                 w.append("  private static Object[] useAsArray(Object o) {\n");

   545                 w.append("    return o instanceof Object[] ? ((Object[])o) : o == null ? new Object[0] : new Object[] { o };\n");

   546                 w.append("  }\n");

   547                 writeToString(props, w);

   548                 writeClone(className, props, w);

   549                 String targetId = findTargetId(e);

   550                 if (targetId != null) {

   551                     w.write("  /** Activates this model instance in the current {@link \n"

   552                         + "net.java.html.json.Models#bind(java.lang.Object, net.java.html.BrwsrCtx) browser context}. \n"

   553                         + "In case of using Knockout technology, this means to \n"

   554                         + "bind JSON like data in this model instance with Knockout tags in \n"

   555                         + "the surrounding HTML page.\n"

   556                     );

   557                     if (targetId != null) {

   558                         w.write("This method binds to element '" + targetId + "' on the page\n");

   559                     }

   560                     w.write(""

   561                         + "@return <code>this</code> object\n"

   562                         + "*/\n"

   563                     );

   564                     w.write("  public " + className + " applyBindings() {\n");

   565                     w.write("    proto.applyBindings();\n");

   566     //                w.write("    proto.applyBindings(id);\n");

   567                     w.write("    return this;\n");

   568                     w.write("  }\n");

   569                 } else {

   570                     w.write("  private " + className + " applyBindings() {\n");

   571                     w.write("    throw new IllegalStateException(\"Please specify targetId=\\\"\\\" in your @Model annotation\");\n");

   572                     w.write("  }\n");

   573                 }

   574                 w.write("  public boolean equals(Object o) {\n");

   575                 w.write("    if (o == this) return true;\n");

   576                 w.write("    if (!(o instanceof " + className + ")) return false;\n");

   577                 w.write("    " + className + " p = (" + className + ")o;\n");

   578                 for (Prprt p : props) {

   579                     w.write("    if (!TYPE.isSame(prop_" + p.name() + ", p.prop_" + p.name() + ")) return false;\n");

   580                 }

   581                 w.write("    return true;\n");

   582                 w.write("  }\n");

   583                 w.write("  public int hashCode() {\n");

   584                 w.write("    int h = " + className + ".class.getName().hashCode();\n");

   585                 for (Prprt p : props) {

   586                     w.write("    h = TYPE.hashPlus(prop_" + p.name() + ", h);\n");

   587                 }

   588                 w.write("    return h;\n");

   589                 w.write("  }\n");

   590                 w.write("}\n");

   591             } finally {

   592                 w.close();

   593             }

   594         } catch (IOException ex) {

   595             error("Can't create " + className + ".java", e);

   596             return false;

   597         }

   598         return ok;

   599     }

   601     private static String findBuilderPrefix(Element e, Model m) {

   602         if (!m.builder().isEmpty()) {

   603             return m.builder();

   604         }

   605         for (AnnotationMirror am : e.getAnnotationMirrors()) {

   606             for (Map.Entry<? extends Object, ? extends Object> entry : am.getElementValues().entrySet()) {

   607                 if ("builder()".equals(entry.getKey().toString())) {

   608                     return "";

   609                 }

   610             }

   611         }

   612         return null;

   613     }

   615     private static String builderMethod(String builderPrefix, Prprt p) {

   616         if (builderPrefix.isEmpty()) {

   617             return p.name();

   618         }

   619         return builderPrefix + Character.toUpperCase(p.name().charAt(0)) + p.name().substring(1);

   620     }

   622     private boolean generateProperties(

   623         Element where, String builderPrefix,

   624         Writer w, String className, Prprt[] properties,

   625         List<GetSet> props,

   626         Map<String,Collection<String[]>> deps,

   627         Map<String,Collection<String>> functionDeps

   628     ) throws IOException {

   629         boolean ok = true;

   630         for (Prprt p : properties) {

   631             final String tn;

   632             tn = typeName(p);

   633             String[] gs = toGetSet(p.name(), tn, p.array());

   634             String castTo;

   636             if (p.array()) {

   637                 w.write("  private final java.util.List<" + tn + "> prop_" + p.name() + ";\n");

   639                 castTo = "java.util.List";

   640                 w.write("  public java.util.List<" + tn + "> " + gs[0] + "() {\n");

   641                 w.write("    proto.accessProperty(\"" + p.name() + "\");\n");

   642                 w.write("    return prop_" + p.name() + ";\n");

   643                 w.write("  }\n");

   644                 if (builderPrefix != null) {

   645                     boolean[] isModel = {false};

   646                     boolean[] isEnum = {false};

   647                     boolean isPrimitive[] = {false};

   648                     String ret = checkType(p, isModel, isEnum, isPrimitive);

   649                     w.write("  public " + className + " " + builderMethod(builderPrefix, p) + "(" + ret + "... v) {\n");

   650                     w.write("    proto.accessProperty(\"" + p.name() + "\");\n");

   651                     w.append("   TYPE.replaceValue(prop_").append(p.name()).append(", " + tn + ".class, v);\n");

   652                     w.write("    return this;\n");

   653                     w.write("  }\n");

   654                 }

   655             } else {

   656                 castTo = tn;

   657                 boolean isModel[] = { false };

   658                 boolean isEnum[] = { false };

   659                 boolean isPrimitive[] = { false };

   660                 checkType(p, isModel, isEnum, isPrimitive);

   661                 w.write("  private " + tn + " prop_" + p.name() + ";\n");

   662                 w.write("  public " + tn + " " + gs[0] + "() {\n");

   663                 w.write("    proto.accessProperty(\"" + p.name() + "\");\n");

   664                 w.write("    return prop_" + p.name() + ";\n");

   665                 w.write("  }\n");

   666                 w.write("  public void " + gs[1] + "(" + tn + " v) {\n");

   667                 w.write("    proto.verifyUnlocked();\n");

   668                 w.write("    Object o = prop_" + p.name() + ";\n");

   669                 if (isModel[0]) {

   670                     w.write("    if (o == v) return;\n");

   671                     w.write("    prop_" + p.name() + " = v;\n");

   672                 } else {

   673                     w.write("    if (TYPE.isSame(o , v)) return;\n");

   674                     w.write("    prop_" + p.name() + " = v;\n");

   675                 }

   676                 w.write("    proto.valueHasMutated(\"" + p.name() + "\", o, v);\n");

   677                 {

   678                     Collection<String[]> dependants = deps.get(p.name());

   679                     if (dependants != null) {

   680                         for (String[] pair : dependants) {

   681                             w.write("    proto.valueHasMutated(\"" + pair[0] + "\", null, " + pair[1] + "());\n");

   682                         }

   683                     }

   684                 }

   685                 {

   686                     Collection<String> dependants = functionDeps.get(p.name());

   687                     if (dependants != null) {

   688                         w.append("    ");

   689                         w.append(className).append(" model = ").append(className).append(".this;\n");

   690                         for (String call : dependants) {

   691                             w.append("  ").append(call);

   692                         }

   693                     }

   694                 }

   695                 w.write("  }\n");

   696                 if (builderPrefix != null) {

   697                     w.write("  public " + className + " " + builderMethod(builderPrefix, p) + "(" + tn + " v) {\n");

   698                     w.write("    " + gs[1] + "(v);\n");

   699                     w.write("    return this;\n");

   700                     w.write("  }\n");

   701                 }

   702             }

   704             for (int i = 0; i < props.size(); i++) {

   705                 if (props.get(i).name.equals(p.name())) {

   706                     error("Cannot have the name " + p.name() + " defined twice", where);

   707                     ok = false;

   708                 }

   709             }

   711             props.add(new GetSet(

   712                 p.name(),

   713                 gs[0],

   714                 gs[1],

   715                 tn,

   716                 gs[3] == null && !p.array()

   717             ));

   718         }

   719         return ok;

   720     }

   722     private boolean generateComputedProperties(

   723         String className,

   724         Writer w, Prprt[] fixedProps,

   725         Collection<? extends Element> arr, Collection<GetSet> props,

   726         Map<String,Collection<String[]>> deps

   727     ) throws IOException {

   728         boolean ok = true;

   729         for (Element e : arr) {

   730             if (e.getKind() != ElementKind.METHOD) {

   731                 continue;

   732             }

   733             final ComputedProperty cp = e.getAnnotation(ComputedProperty.class);

   734             final Transitive tp = e.getAnnotation(Transitive.class);

   735             if (cp == null) {

   736                 continue;

   737             }

   738             if (!e.getModifiers().contains(Modifier.STATIC)) {

   739                 error("Method " + e.getSimpleName() + " has to be static when annotated by @ComputedProperty", e);

   740                 ok = false;

   741                 continue;

   742             }

   743             ExecutableElement ee = (ExecutableElement)e;

   744             ExecutableElement write = null;

   745             if (!cp.write().isEmpty()) {

   746                 write = findWrite(ee, (TypeElement)e.getEnclosingElement(), cp.write(), className);

   747                 ok = write != null;

   748             }

   749             final TypeMirror rt = ee.getReturnType();

   750             final Types tu = processingEnv.getTypeUtils();

   751             TypeMirror ert = tu.erasure(rt);

   752             String tn = fqn(ert, ee);

   753             boolean array = false;

   754             final TypeMirror toCheck;

   755             if (tn.equals("java.util.List")) {

   756                 array = true;

   757                 toCheck = ((DeclaredType)rt).getTypeArguments().get(0);

   758             } else {

   759                 toCheck = rt;

   760             }

   762             final String sn = ee.getSimpleName().toString();

   764             if (toCheck.getKind().isPrimitive()) {

   765                 // OK

   766             } else {

   767                 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

   768                 TypeMirror enumType = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();

   770                 if (tu.isSubtype(toCheck, stringType)) {

   771                     // OK

   772                 } else if (tu.isSubtype(tu.erasure(toCheck), tu.erasure(enumType))) {

   773                     // OK

   774                 } else if (isModel(toCheck)) {

   775                     // OK

   776                 } else {

   777                     try {

   778                         tu.unboxedType(toCheck);

   779                         // boxed types are OK

   780                     } catch (IllegalArgumentException ex) {

   781                         ok = false;

   782                         error(sn + " cannot return " + toCheck, e);

   783                     }

   784                 }

   785             }

   787             String[] gs = toGetSet(sn, tn, array);

   789             w.write("  public " + tn);

   790             if (array) {

   791                 w.write("<" + toCheck + ">");

   792             }

   793             w.write(" " + gs[0] + "() {\n");

   794             int arg = 0;

   795             boolean deep = false;

   796             for (VariableElement pe : ee.getParameters()) {

   797                 final String dn = pe.getSimpleName().toString();

   799                 if (!verifyPropName(pe, dn, fixedProps)) {

   800                     ok = false;

   801                 }

   802                 final TypeMirror pt = pe.asType();

   803                 if (isModel(pt)) {

   804                     deep = true;

   805                 }

   806                 final String dt = fqn(pt, ee);

   807                 if (dt.startsWith("java.util.List") && pt instanceof DeclaredType) {

   808                     final List<? extends TypeMirror> ptArgs = ((DeclaredType)pt).getTypeArguments();

   809                     if (ptArgs.size() == 1 && isModel(ptArgs.get(0))) {

   810                         deep = true;

   811                     }

   812                 }

   813                 String[] call = toGetSet(dn, dt, false);

   814                 w.write("    " + dt + " arg" + (++arg) + " = ");

   815                 w.write(call[0] + "();\n");

   817                 Collection<String[]> depends = deps.get(dn);

   818                 if (depends == null) {

   819                     depends = new LinkedHashSet<String[]>();

   820                     deps.put(dn, depends);

   821                 }

   822                 depends.add(new String[] { sn, gs[0] });

   823             }

   824             w.write("    try {\n");

   825             if (tp != null) {

   826                 deep = tp.deep();

   827             }

   828             if (deep) {

   829                 w.write("      proto.acquireLock(\"" + sn + "\");\n");

   830             } else {

   831                 w.write("      proto.acquireLock();\n");

   832             }

   833             w.write("      return " + fqn(ee.getEnclosingElement().asType(), ee) + '.' + e.getSimpleName() + "(");

   834             String sep = "";

   835             for (int i = 1; i <= arg; i++) {

   836                 w.write(sep);

   837                 w.write("arg" + i);

   838                 sep = ", ";

   839             }

   840             w.write(");\n");

   841             w.write("    } finally {\n");

   842             w.write("      proto.releaseLock();\n");

   843             w.write("    }\n");

   844             w.write("  }\n");

   846             if (write == null) {

   847                 props.add(new GetSet(

   848                     e.getSimpleName().toString(),

   849                     gs[0],

   850                     null,

   851                     tn,

   852                     true

   853                 ));

   854             } else {

   855                 w.write("  public void " + gs[4] + "(" + write.getParameters().get(1).asType());

   856                 w.write(" value) {\n");

   857                 w.write("    " + fqn(ee.getEnclosingElement().asType(), ee) + '.' + write.getSimpleName() + "(this, value);\n");

   858                 w.write("  }\n");

   860                 props.add(new GetSet(

   861                     e.getSimpleName().toString(),

   862                     gs[0],

   863                     gs[4],

   864                     tn,

   865                     false

   866                 ));

   867             }

   868         }

   870         return ok;

   871     }

   873     private static String[] toGetSet(String name, String type, boolean array) {

   874         String n = Character.toUpperCase(name.charAt(0)) + name.substring(1);

   875         boolean clazz = "class".equals(name);

   876         String pref = clazz ? "access" : "get";

   877         if ("boolean".equals(type) && !array) {

   878             pref = "is";

   879         }

   880         if (array) {

   881             return new String[] {

   882                 pref + n,

   883                 null,

   884                 "a" + n,

   885                 null,

   886                 "set" + n

   887             };

   888         }

   889         return new String[]{

   890             pref + n,

   891             "set" + n,

   892             "a" + n,

   893             "",

   894             "set" + n

   895         };

   896     }

   898     private String typeName(Prprt p) {

   899         String ret;

   900         boolean[] isModel = { false };

   901         boolean[] isEnum = { false };

   902         boolean isPrimitive[] = { false };

   903         ret = checkType(p, isModel, isEnum, isPrimitive);

   904         if (p.array()) {

   905             String bt = findBoxedType(ret);

   906             if (bt != null) {

   907                 return bt;

   908             }

   909         }

   910         return ret;

   911     }

   913     private static String findBoxedType(String ret) {

   914         if (ret.equals("boolean")) {

   915             return Boolean.class.getName();

   916         }

   917         if (ret.equals("byte")) {

   918             return Byte.class.getName();

   919         }

   920         if (ret.equals("short")) {

   921             return Short.class.getName();

   922         }

   923         if (ret.equals("char")) {

   924             return Character.class.getName();

   925         }

   926         if (ret.equals("int")) {

   927             return Integer.class.getName();

   928         }

   929         if (ret.equals("long")) {

   930             return Long.class.getName();

   931         }

   932         if (ret.equals("float")) {

   933             return Float.class.getName();

   934         }

   935         if (ret.equals("double")) {

   936             return Double.class.getName();

   937         }

   938         return null;

   939     }

   941     private boolean verifyPropName(Element e, String propName, Prprt[] existingProps) {

   942         StringBuilder sb = new StringBuilder();

   943         String sep = "";

   944         for (Prprt Prprt : existingProps) {

   945             if (Prprt.name().equals(propName)) {

   946                 return true;

   947             }

   948             sb.append(sep);

   949             sb.append('"');

   950             sb.append(Prprt.name());

   951             sb.append('"');

   952             sep = ", ";

   953         }

   954         error(

   955             propName + " is not one of known properties: " + sb

   956             , e

   957         );

   958         return false;

   959     }

   961     private static String findPkgName(Element e) {

   962         for (;;) {

   963             if (e.getKind() == ElementKind.PACKAGE) {

   964                 return ((PackageElement)e).getQualifiedName().toString();

   965             }

   966             e = e.getEnclosingElement();

   967         }

   968     }

   970     private boolean generateFunctions(

   971         Element clazz, StringWriter body, String className,

   972         List<? extends Element> enclosedElements, List<Object> functions

   973     ) {

   974         boolean instance = clazz.getAnnotation(Model.class).instance();

   975         for (Element m : enclosedElements) {

   976             if (m.getKind() != ElementKind.METHOD) {

   977                 continue;

   978             }

   979             ExecutableElement e = (ExecutableElement)m;

   980             Function onF = e.getAnnotation(Function.class);

   981             if (onF == null) {

   982                 continue;

   983             }

   984             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

   985                 error("@OnFunction method needs to be static", e);

   986                 return false;

   987             }

   988             if (e.getModifiers().contains(Modifier.PRIVATE)) {

   989                 error("@OnFunction method cannot be private", e);

   990                 return false;

   991             }

   992             if (e.getReturnType().getKind() != TypeKind.VOID) {

   993                 error("@OnFunction method should return void", e);

   994                 return false;

   995             }

   996             String n = e.getSimpleName().toString();

   997             functions.add(n);

   998             functions.add(e);

   999         }

  1000         return true;

  1001     }

  1003     private boolean generateOnChange(Element clazz, Map<String,Collection<String[]>> propDeps,

  1004         Prprt[] properties, String className,

  1005         Map<String, Collection<String>> functionDeps

  1006     ) {

  1007         boolean instance = clazz.getAnnotation(Model.class).instance();

  1008         for (Element m : clazz.getEnclosedElements()) {

  1009             if (m.getKind() != ElementKind.METHOD) {

  1010                 continue;

  1011             }

  1012             ExecutableElement e = (ExecutableElement) m;

  1013             OnPropertyChange onPC = e.getAnnotation(OnPropertyChange.class);

  1014             if (onPC == null) {

  1015                 continue;

  1016             }

  1017             for (String pn : onPC.value()) {

  1018                 if (findPrprt(properties, pn) == null && findDerivedFrom(propDeps, pn).isEmpty()) {

  1019                     error("No Prprt named '" + pn + "' in the model", clazz);

  1020                     return false;

  1021                 }

  1022             }

  1023             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1024                 error("@OnPrprtChange method needs to be static", e);

  1025                 return false;

  1026             }

  1027             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1028                 error("@OnPrprtChange method cannot be private", e);

  1029                 return false;

  1030             }

  1031             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1032                 error("@OnPrprtChange method should return void", e);

  1033                 return false;

  1034             }

  1035             String n = e.getSimpleName().toString();

  1038             for (String pn : onPC.value()) {

  1039                 StringBuilder call = new StringBuilder();

  1040                 call.append("  ").append(inPckName(clazz, instance)).append(".").append(n).append("(");

  1041                 call.append(wrapPropName(e, className, "name", pn));

  1042                 call.append(");\n");

  1044                 Collection<String> change = functionDeps.get(pn);

  1045                 if (change == null) {

  1046                     change = new ArrayList<String>();

  1047                     functionDeps.put(pn, change);

  1048                 }

  1049                 change.add(call.toString());

  1050                 for (String dpn : findDerivedFrom(propDeps, pn)) {

  1051                     change = functionDeps.get(dpn);

  1052                     if (change == null) {

  1053                         change = new ArrayList<String>();

  1054                         functionDeps.put(dpn, change);

  1055                     }

  1056                     change.add(call.toString());

  1057                 }

  1058             }

  1059         }

  1060         return true;

  1061     }

  1063     private boolean generateOperation(Element clazz,

  1064         StringWriter body, String className,

  1065         List<? extends Element> enclosedElements,

  1066         List<Object> functions

  1067     ) {

  1068         boolean instance = clazz.getAnnotation(Model.class).instance();

  1069         for (Element m : enclosedElements) {

  1070             if (m.getKind() != ElementKind.METHOD) {

  1071                 continue;

  1072             }

  1073             ExecutableElement e = (ExecutableElement)m;

  1074             ModelOperation mO = e.getAnnotation(ModelOperation.class);

  1075             if (mO == null) {

  1076                 continue;

  1077             }

  1078             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1079                 error("@ModelOperation method needs to be static", e);

  1080                 return false;

  1081             }

  1082             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1083                 error("@ModelOperation method cannot be private", e);

  1084                 return false;

  1085             }

  1086             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1087                 error("@ModelOperation method should return void", e);

  1088                 return false;

  1089             }

  1090             List<String> args = new ArrayList<String>();

  1091             {

  1092                 body.append("  public void ").append(m.getSimpleName()).append("(");

  1093                 String sep = "";

  1094                 boolean checkFirst = true;

  1095                 for (VariableElement ve : e.getParameters()) {

  1096                     final TypeMirror type = ve.asType();

  1097                     CharSequence simpleName;

  1098                     if (type.getKind() == TypeKind.DECLARED) {

  1099                         simpleName = ((DeclaredType)type).asElement().getSimpleName();

  1100                     } else {

  1101                         simpleName = type.toString();

  1102                     }

  1103                     if (checkFirst && simpleName.toString().equals(className)) {

  1104                         checkFirst = false;

  1105                     } else {

  1106                         if (checkFirst) {

  1107                             error("First parameter of @ModelOperation method must be " + className, m);

  1108                             return false;

  1109                         }

  1110                         args.add(ve.getSimpleName().toString());

  1111                         body.append(sep).append("final ");

  1112                         body.append(ve.asType().toString()).append(" ");

  1113                         body.append(ve.toString());

  1114                         sep = ", ";

  1115                     }

  1116                 }

  1117                 body.append(") {\n");

  1118                 int idx = functions.size() / 2;

  1119                 functions.add(m.getSimpleName().toString());

  1120                 body.append("    proto.runInBrowser(" + idx);

  1121                 for (String s : args) {

  1122                     body.append(", ").append(s);

  1123                 }

  1124                 body.append(");\n");

  1125                 body.append("  }\n");

  1127                 StringBuilder call = new StringBuilder();

  1128                 call.append("{ Object[] arr = (Object[])data; ");

  1129                 call.append(inPckName(clazz, true)).append(".").append(m.getSimpleName()).append("(");

  1130                 int i = 0;

  1131                 for (VariableElement ve : e.getParameters()) {

  1132                     if (i++ == 0) {

  1133                         call.append("model");

  1134                         continue;

  1135                     }

  1136                     String type = ve.asType().toString();

  1137                     String boxedType = findBoxedType(type);

  1138                     if (boxedType != null) {

  1139                         type = boxedType;

  1140                     }

  1141                     call.append(", ").append("(").append(type).append(")arr[").append(i - 2).append("]");

  1142                 }

  1143                 call.append("); }");

  1144                 functions.add(call.toString());

  1145             }

  1147         }

  1148         return true;

  1149     }

  1152     private boolean generateReceive(

  1153         Element clazz, StringWriter body, String className,

  1154         List<? extends Element> enclosedElements, StringBuilder inType

  1155     ) {

  1156         boolean ret = generateReceiveImpl(clazz, body, className, enclosedElements, inType);

  1157         if (!ret) {

  1158             inType.setLength(0);

  1159         }

  1160         return ret;

  1161     }

  1162     private boolean generateReceiveImpl(

  1163         Element clazz, StringWriter body, String className,

  1164         List<? extends Element> enclosedElements, StringBuilder inType

  1165     ) {

  1166         inType.append("  @Override public void onMessage(").append(className).append(" model, int index, int type, Object data, Object[] params) {\n");

  1167         inType.append("    switch (index) {\n");

  1168         int index = 0;

  1169         boolean ok = true;

  1170         boolean instance = clazz.getAnnotation(Model.class).instance();

  1171         for (Element m : enclosedElements) {

  1172             if (m.getKind() != ElementKind.METHOD) {

  1173                 continue;

  1174             }

  1175             ExecutableElement e = (ExecutableElement)m;

  1176             OnReceive onR = e.getAnnotation(OnReceive.class);

  1177             if (onR == null) {

  1178                 continue;

  1179             }

  1180             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1181                 error("@OnReceive method needs to be static", e);

  1182                 return false;

  1183             }

  1184             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1185                 error("@OnReceive method cannot be private", e);

  1186                 return false;

  1187             }

  1188             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1189                 error("@OnReceive method should return void", e);

  1190                 return false;

  1191             }

  1192             if (!onR.jsonp().isEmpty() && !"GET".equals(onR.method())) {

  1193                 error("JSONP works only with GET transport method", e);

  1194             }

  1195             String dataMirror = findDataSpecified(e, onR);

  1196             if ("PUT".equals(onR.method()) && dataMirror == null) {

  1197                 error("PUT method needs to specify a data() class", e);

  1198                 return false;

  1199             }

  1200             if ("POST".equals(onR.method()) && dataMirror == null) {

  1201                 error("POST method needs to specify a data() class", e);

  1202                 return false;

  1203             }

  1204             if (e.getParameters().size() < 2) {

  1205                 error("@OnReceive method needs at least two parameters", e);

  1206             }

  1207             final boolean isWebSocket = "WebSocket".equals(onR.method());

  1208             if (isWebSocket && dataMirror == null) {

  1209                 error("WebSocket method needs to specify a data() class", e);

  1210             }

  1211             int expectsList = 0;

  1212             List<String> args = new ArrayList<String>();

  1213             List<String> params = new ArrayList<String>();

  1214             // first argument is model class

  1215             {

  1216                 TypeMirror type = e.getParameters().get(0).asType();

  1217                 CharSequence simpleName;

  1218                 if (type.getKind() == TypeKind.DECLARED) {

  1219                     simpleName = ((DeclaredType) type).asElement().getSimpleName();

  1220                 } else {

  1221                     simpleName = type.toString();

  1222                 }

  1223                 if (simpleName.toString().equals(className)) {

  1224                     args.add("model");

  1225                 } else {

  1226                     error("First parameter needs to be " + className, e);

  1227                     return false;

  1228                 }

  1229             }

  1231             String modelClass;

  1232             {

  1233                 final Types tu = processingEnv.getTypeUtils();

  1234                 TypeMirror type = e.getParameters().get(1).asType();

  1235                 TypeMirror modelType = null;

  1236                 TypeMirror ert = tu.erasure(type);

  1238                 if (isModel(type)) {

  1239                     modelType = type;

  1240                 } else if (type.getKind() == TypeKind.ARRAY) {

  1241                     modelType = ((ArrayType)type).getComponentType();

  1242                     expectsList = 1;

  1243                 } else if ("java.util.List".equals(fqn(ert, e))) {

  1244                     List<? extends TypeMirror> typeArgs = ((DeclaredType)type).getTypeArguments();

  1245                     if (typeArgs.size() == 1) {

  1246                         modelType = typeArgs.get(0);

  1247                         expectsList = 2;

  1248                     }

  1249                 } else if (type.toString().equals("java.lang.String")) {

  1250                     modelType = type;

  1251                 }

  1252                 if (modelType == null) {

  1253                     error("Second arguments needs to be a model, String or array or List of models", e);

  1254                     return false;

  1255                 }

  1256                 modelClass = modelType.toString();

  1257                 if (expectsList == 1) {

  1258                     args.add("arr");

  1259                 } else if (expectsList == 2) {

  1260                     args.add("java.util.Arrays.asList(arr)");

  1261                 } else {

  1262                     args.add("arr[0]");

  1263                 }

  1264             }

  1265             String n = e.getSimpleName().toString();

  1266             if (isWebSocket) {

  1267                 body.append("  /** Performs WebSocket communication. Call with <code>null</code> data parameter\n");

  1268                 body.append("  * to open the connection (even if not required). Call with non-null data to\n");

  1269                 body.append("  * send messages to server. Call again with <code>null</code> data to close the socket.\n");

  1270                 body.append("  */\n");

  1271                 if (onR.headers().length > 0) {

  1272                     error("WebSocket spec does not support headers", e);

  1273                 }

  1274             }

  1275             body.append("  public void ").append(n).append("(");

  1276             StringBuilder urlBefore = new StringBuilder();

  1277             StringBuilder urlAfter = new StringBuilder();

  1278             StringBuilder headers = new StringBuilder();

  1279             String jsonpVarName = null;

  1280             {

  1281                 String sep = "";

  1282                 boolean skipJSONP = onR.jsonp().isEmpty();

  1283                 Set<String> receiveParams = new LinkedHashSet<String>();

  1284                 findParamNames(receiveParams, e, onR.url(), onR.jsonp(), urlBefore, urlAfter);

  1285                 for (String headerLine : onR.headers()) {

  1286                     if (headerLine.contains("\r") || headerLine.contains("\n")) {

  1287                         error("Header line cannot contain line separator", e);

  1288                     }

  1289                     findParamNames(receiveParams, e, headerLine, null, headers);

  1290                     headers.append("+ \"\\r\\n\" +\n");

  1291                 }

  1292                 if (headers.length() > 0) {

  1293                     headers.append("\"\"");

  1294                 }

  1295                 for (String p : receiveParams) {

  1296                     if (!skipJSONP && p.equals(onR.jsonp())) {

  1297                         skipJSONP = true;

  1298                         jsonpVarName = p;

  1299                         continue;

  1300                     }

  1301                     body.append(sep);

  1302                     body.append("String ").append(p);

  1303                     sep = ", ";

  1304                 }

  1305                 if (!skipJSONP) {

  1306                     error(

  1307                         "Name of jsonp attribute ('" + onR.jsonp() +

  1308                         "') is not used in url attribute '" + onR.url() + "'", e

  1309                     );

  1310                 }

  1311                 if (dataMirror != null) {

  1312                     body.append(sep).append(dataMirror.toString()).append(" data");

  1313                 }

  1314                 for (int i = 2; i < e.getParameters().size(); i++) {

  1315                     if (isWebSocket) {

  1316                         error("@OnReceive(method=\"WebSocket\") can only have two arguments", e);

  1317                         ok = false;

  1318                     }

  1320                     VariableElement ve = e.getParameters().get(i);

  1321                     body.append(sep).append(ve.asType().toString()).append(" ").append(ve.getSimpleName());

  1322                     final String tp = ve.asType().toString();

  1323                     String btn = findBoxedType(tp);

  1324                     if (btn == null) {

  1325                         btn = tp;

  1326                     }

  1327                     args.add("(" + btn + ")params[" + (i - 2) + "]");

  1328                     params.add(ve.getSimpleName().toString());

  1329                     sep = ", ";

  1330                 }

  1331             }

  1332             body.append(") {\n");

  1333             boolean webSocket = onR.method().equals("WebSocket");

  1334             if (webSocket) {

  1335                 if (generateWSReceiveBody(index++, body, inType, onR, e, clazz, className, expectsList != 0, modelClass, n, args, params, urlBefore, jsonpVarName, urlAfter, dataMirror, headers)) {

  1336                     return false;

  1337                 }

  1338                 body.append("  }\n");

  1339                 body.append("  private Object ws_" + e.getSimpleName() + ";\n");

  1340             } else {

  1341                 if (generateJSONReceiveBody(index++, body, inType, onR, e, clazz, className, expectsList != 0, modelClass, n, args, params, urlBefore, jsonpVarName, urlAfter, dataMirror, headers)) {

  1342                     ok = false;

  1343                 }

  1344                 body.append("  }\n");

  1345             }

  1346         }

  1347         inType.append("    }\n");

  1348         inType.append("    throw new UnsupportedOperationException(\"index: \" + index + \" type: \" + type);\n");

  1349         inType.append("  }\n");

  1350         return ok;

  1351     }

  1353     private boolean generateJSONReceiveBody(int index, StringWriter method, StringBuilder body, OnReceive onR, ExecutableElement e, Element clazz, String className, boolean expectsList, String modelClass, String n, List<String> args, List<String> params, StringBuilder urlBefore, String jsonpVarName, StringBuilder urlAfter, String dataMirror, StringBuilder headers) {

  1354         boolean error = false;

  1355         body.append(

  1356             "    case " + index + ": {\n" +

  1357             "      if (type == 2) { /* on error */\n" +

  1358             "        Exception ex = (Exception)data;\n"

  1359             );

  1360         if (onR.onError().isEmpty()) {

  1361             body.append(

  1362                 "        ex.printStackTrace();\n"

  1363                 );

  1364         } else {

  1365             error = !findOnError(e, ((TypeElement)clazz), onR.onError(), className);

  1366             body.append("        ").append(clazz.getSimpleName()).append(".").append(onR.onError()).append("(");

  1367             body.append("model, ex);\n");

  1368         }

  1369         body.append(

  1370             "        return;\n" +

  1371             "      } else if (type == 1) {\n" +

  1372             "        Object[] ev = (Object[])data;\n"

  1373             );

  1374         if (expectsList) {

  1375             body.append(

  1376                 "        " + modelClass + "[] arr = new " + modelClass + "[ev.length];\n"

  1377                 );

  1378         } else {

  1379             body.append(

  1380                 "        " + modelClass + "[] arr = { null };\n"

  1381                 );

  1382         }

  1383         body.append(

  1384             "        TYPE.copyJSON(model.proto.getContext(), ev, " + modelClass + ".class, arr);\n"

  1385         );

  1386         {

  1387             body.append("        ").append(clazz.getSimpleName()).append(".").append(n).append("(");

  1388             String sep = "";

  1389             for (String arg : args) {

  1390                 body.append(sep);

  1391                 body.append(arg);

  1392                 sep = ", ";

  1393             }

  1394             body.append(");\n");

  1395         }

  1396         body.append(

  1397             "        return;\n" +

  1398             "      }\n" +

  1399             "    }\n"

  1400             );

  1401         method.append("    proto.loadJSONWithHeaders(" + index + ",\n        ");

  1402         method.append(headers.length() == 0 ? "null" : headers).append(",\n        ");

  1403         method.append(urlBefore).append(", ");

  1404         if (jsonpVarName != null) {

  1405             method.append(urlAfter);

  1406         } else {

  1407             method.append("null");

  1408         }

  1409         if (!"GET".equals(onR.method()) || dataMirror != null) {

  1410             method.append(", \"").append(onR.method()).append('"');

  1411             if (dataMirror != null) {

  1412                 method.append(", data");

  1413             } else {

  1414                 method.append(", null");

  1415             }

  1416         } else {

  1417             method.append(", null, null");

  1418         }

  1419         for (String a : params) {

  1420             method.append(", ").append(a);

  1421         }

  1422         method.append(");\n");

  1423         return error;

  1424     }

  1426     private boolean generateWSReceiveBody(int index, StringWriter method, StringBuilder body, OnReceive onR, ExecutableElement e, Element clazz, String className, boolean expectsList, String modelClass, String n, List<String> args, List<String> params, StringBuilder urlBefore, String jsonpVarName, StringBuilder urlAfter, String dataMirror, StringBuilder headers) {

  1427         body.append(

  1428             "    case " + index + ": {\n" +

  1429             "      if (type == 0) { /* on open */\n" +

  1430             "        ").append(inPckName(clazz, true)).append(".").append(n).append("(");

  1431         {

  1432             String sep = "";

  1433             for (String arg : args) {

  1434                 body.append(sep);

  1435                 if (arg.startsWith("arr") || arg.startsWith("java.util.Array")) {

  1436                     body.append("null");

  1437                 } else {

  1438                     body.append(arg);

  1439                 }

  1440                 sep = ", ";

  1441             }

  1442         }

  1443         body.append(");\n");

  1444         body.append(

  1445             "        return;\n" +

  1446             "      } else if (type == 2) { /* on error */\n" +

  1447             "        Exception value = (Exception)data;\n"

  1448             );

  1449         if (onR.onError().isEmpty()) {

  1450             body.append(

  1451                 "        value.printStackTrace();\n"

  1452                 );

  1453         } else {

  1454             if (!findOnError(e, ((TypeElement)clazz), onR.onError(), className)) {

  1455                 return true;

  1456             }

  1457             body.append("        ").append(inPckName(clazz, true)).append(".").append(onR.onError()).append("(");

  1458             body.append("model, value);\n");

  1459         }

  1460         body.append(

  1461             "        return;\n" +

  1462             "      } else if (type == 1) {\n" +

  1463             "        Object[] ev = (Object[])data;\n"

  1464         );

  1465         if (expectsList) {

  1466             body.append(

  1467                 "        " + modelClass + "[] arr = new " + modelClass + "[ev.length];\n"

  1468                 );

  1469         } else {

  1470             body.append(

  1471                 "        " + modelClass + "[] arr = { null };\n"

  1472                 );

  1473         }

  1474         body.append(

  1475             "        TYPE.copyJSON(model.proto.getContext(), ev, " + modelClass + ".class, arr);\n"

  1476         );

  1477         {

  1478             body.append("        ").append(inPckName(clazz, true)).append(".").append(n).append("(");

  1479             String sep = "";

  1480             for (String arg : args) {

  1481                 body.append(sep);

  1482                 body.append(arg);

  1483                 sep = ", ";

  1484             }

  1485             body.append(");\n");

  1486         }

  1487         body.append(

  1488             "        return;\n" +

  1489             "      }"

  1490         );

  1491         if (!onR.onError().isEmpty()) {

  1492             body.append(" else if (type == 3) { /* on close */\n");

  1493             body.append("        ").append(inPckName(clazz, true)).append(".").append(onR.onError()).append("(");

  1494             body.append("model, null);\n");

  1495             body.append(

  1496                 "        return;" +

  1497                 "      }"

  1498             );

  1499         }

  1500         body.append("\n");

  1501         body.append("    }\n");

  1502         method.append("    if (this.ws_").append(e.getSimpleName()).append(" == null) {\n");

  1503         method.append("      this.ws_").append(e.getSimpleName());

  1504         method.append("= proto.wsOpen(" + index + ", ");

  1505         method.append(urlBefore).append(", data);\n");

  1506         method.append("    } else {\n");

  1507         method.append("      proto.wsSend(this.ws_").append(e.getSimpleName()).append(", ").append(urlBefore).append(", data");

  1508         for (String a : params) {

  1509             method.append(", ").append(a);

  1510         }

  1511         method.append(");\n");

  1512         method.append("    }\n");

  1513         return false;

  1514     }

  1516     private CharSequence wrapParams(

  1517         ExecutableElement ee, String id, String className, String classRef, String evName, String dataName

  1518     ) {

  1519         TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

  1520         StringBuilder params = new StringBuilder();

  1521         boolean first = true;

  1522         for (VariableElement ve : ee.getParameters()) {

  1523             if (!first) {

  1524                 params.append(", ");

  1525             }

  1526             first = false;

  1527             String toCall = null;

  1528             String toFinish = null;

  1529             boolean addNull = true;

  1530             if (ve.asType() == stringType) {

  1531                 if (ve.getSimpleName().contentEquals("id")) {

  1532                     params.append('"').append(id).append('"');

  1533                     continue;

  1534                 }

  1535                 toCall = classRef + ".proto.toString(";

  1536             }

  1537             if (ve.asType().getKind() == TypeKind.DOUBLE) {

  1538                 toCall = classRef + ".proto.toNumber(";

  1539                 toFinish = ".doubleValue()";

  1540             }

  1541             if (ve.asType().getKind() == TypeKind.FLOAT) {

  1542                 toCall = classRef + ".proto.toNumber(";

  1543                 toFinish = ".floatValue()";

  1544             }

  1545             if (ve.asType().getKind() == TypeKind.INT) {

  1546                 toCall = classRef + ".proto.toNumber(";

  1547                 toFinish = ".intValue()";

  1548             }

  1549             if (ve.asType().getKind() == TypeKind.BYTE) {

  1550                 toCall = classRef + ".proto.toNumber(";

  1551                 toFinish = ".byteValue()";

  1552             }

  1553             if (ve.asType().getKind() == TypeKind.SHORT) {

  1554                 toCall = classRef + ".proto.toNumber(";

  1555                 toFinish = ".shortValue()";

  1556             }

  1557             if (ve.asType().getKind() == TypeKind.LONG) {

  1558                 toCall = classRef + ".proto.toNumber(";

  1559                 toFinish = ".longValue()";

  1560             }

  1561             if (ve.asType().getKind() == TypeKind.BOOLEAN) {

  1562                 toCall = "\"true\".equals(" + classRef + ".proto.toString(";

  1563                 toFinish = ")";

  1564             }

  1565             if (ve.asType().getKind() == TypeKind.CHAR) {

  1566                 toCall = "(char)" + classRef + ".proto.toNumber(";

  1567                 toFinish = ".intValue()";

  1568             }

  1569             if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {

  1570                 toCall = classRef + ".proto.toModel(" + ve.asType() + ".class, ";

  1571                 addNull = false;

  1572             }

  1574             if (toCall != null) {

  1575                 params.append(toCall);

  1576                 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {

  1577                     params.append(dataName);

  1578                     if (addNull) {

  1579                         params.append(", null");

  1580                     }

  1581                 } else {

  1582                     if (evName == null) {

  1583                         final StringBuilder sb = new StringBuilder();

  1584                         sb.append("Unexpected string parameter name.");

  1585                         if (dataName != null) {

  1586                             sb.append(" Try \"").append(dataName).append("\"");

  1587                         }

  1588                         error(sb.toString(), ee);

  1589                     }

  1590                     params.append(evName);

  1591                     params.append(", \"");

  1592                     params.append(ve.getSimpleName().toString());

  1593                     params.append("\"");

  1594                 }

  1595                 params.append(")");

  1596                 if (toFinish != null) {

  1597                     params.append(toFinish);

  1598                 }

  1599                 continue;

  1600             }

  1601             String rn = fqn(ve.asType(), ee);

  1602             int last = rn.lastIndexOf('.');

  1603             if (last >= 0) {

  1604                 rn = rn.substring(last + 1);

  1605             }

  1606             if (rn.equals(className)) {

  1607                 params.append(classRef);

  1608                 continue;

  1609             }

  1610             StringBuilder err = new StringBuilder();

  1611             err.append("Argument ").

  1612                 append(ve.getSimpleName()).

  1613                 append(" is not valid. The annotated method can only accept ").

  1614                 append(className).

  1615                 append(" argument");

  1616             if (dataName != null) {

  1617                 err.append(" or argument named '").append(dataName).append("'");

  1618             }

  1619             err.append(".");

  1620             error(err.toString(), ee);

  1621         }

  1622         return params;

  1623     }

  1626     private CharSequence wrapPropName(

  1627         ExecutableElement ee, String className, String propName, String propValue

  1628     ) {

  1629         TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

  1630         StringBuilder params = new StringBuilder();

  1631         boolean first = true;

  1632         for (VariableElement ve : ee.getParameters()) {

  1633             if (!first) {

  1634                 params.append(", ");

  1635             }

  1636             first = false;

  1637             if (ve.asType() == stringType) {

  1638                 if (propName != null && ve.getSimpleName().contentEquals(propName)) {

  1639                     params.append('"').append(propValue).append('"');

  1640                 } else {

  1641                     error("Unexpected string parameter name. Try \"" + propName + "\".", ee);

  1642                 }

  1643                 continue;

  1644             }

  1645             String rn = fqn(ve.asType(), ee);

  1646             int last = rn.lastIndexOf('.');

  1647             if (last >= 0) {

  1648                 rn = rn.substring(last + 1);

  1649             }

  1650             if (rn.equals(className)) {

  1651                 params.append("model");

  1652                 continue;

  1653             }

  1654             error(

  1655                 "@OnPrprtChange method can only accept String or " + className + " arguments",

  1656                 ee);

  1657         }

  1658         return params;

  1659     }

  1661     private boolean isModel(TypeMirror tm) {

  1662         if (tm.getKind() == TypeKind.ERROR) {

  1663             return true;

  1664         }

  1665         final Element e = processingEnv.getTypeUtils().asElement(tm);

  1666         if (e == null) {

  1667             return false;

  1668         }

  1669         for (Element ch : e.getEnclosedElements()) {

  1670             if (ch.getKind() == ElementKind.METHOD) {

  1671                 ExecutableElement ee = (ExecutableElement)ch;

  1672                 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {

  1673                     return true;

  1674                 }

  1675             }

  1676         }

  1677         return models.values().contains(e.getSimpleName().toString());

  1678     }

  1680     private void writeToString(Prprt[] props, Writer w) throws IOException {

  1681         w.write("  public String toString() {\n");

  1682         w.write("    StringBuilder sb = new StringBuilder();\n");

  1683         w.write("    sb.append('{');\n");

  1684         String sep = "";

  1685         for (Prprt p : props) {

  1686             w.write(sep);

  1687             w.append("    sb.append('\"').append(\"" + p.name() + "\")");

  1688                 w.append(".append('\"').append(\":\");\n");

  1689             w.append("    sb.append(TYPE.toJSON(prop_");

  1690             w.append(p.name()).append("));\n");

  1691             sep =    "    sb.append(',');\n";

  1692         }

  1693         w.write("    sb.append('}');\n");

  1694         w.write("    return sb.toString();\n");

  1695         w.write("  }\n");

  1696     }

  1697     private void writeClone(String className, Prprt[] props, Writer w) throws IOException {

  1698         w.write("  public " + className + " clone() {\n");

  1699         w.write("    return clone(proto.getContext());\n");

  1700         w.write("  }\n");

  1701         w.write("  private " + className + " clone(net.java.html.BrwsrCtx ctx) {\n");

  1702         w.write("    " + className + " ret = new " + className + "(ctx);\n");

  1703         for (Prprt p : props) {

  1704             String tn = typeName(p);

  1705             String[] gs = toGetSet(p.name(), tn, p.array());

  1706             if (!p.array()) {

  1707                 boolean isModel[] = { false };

  1708                 boolean isEnum[] = { false };

  1709                 boolean isPrimitive[] = { false };

  1710                 checkType(p, isModel, isEnum, isPrimitive);

  1711                 if (!isModel[0]) {

  1712                     w.write("    ret.prop_" + p.name() + " = " + gs[0] + "();\n");

  1713                     continue;

  1714                 }

  1715                 w.write("    ret.prop_" + p.name() + " =  " + gs[0] + "()  == null ? null : prop_" + p.name() + ".clone();\n");

  1716             } else {

  1717                 w.write("    proto.cloneList(ret." + gs[0] + "(), ctx, prop_" + p.name() + ");\n");

  1718             }

  1719         }

  1721         w.write("    return ret;\n");

  1722         w.write("  }\n");

  1723     }

  1725     private String inPckName(Element e, boolean preferInstance) {

  1726         if (preferInstance && e.getAnnotation(Model.class).instance()) {

  1727             return "model.instance";

  1728         }

  1729         StringBuilder sb = new StringBuilder();

  1730         while (e.getKind() != ElementKind.PACKAGE) {

  1731             if (sb.length() == 0) {

  1732                 sb.append(e.getSimpleName());

  1733             } else {

  1734                 sb.insert(0, '.');

  1735                 sb.insert(0, e.getSimpleName());

  1736             }

  1737             e = e.getEnclosingElement();

  1738         }

  1739         return sb.toString();

  1740     }

  1742     private String fqn(TypeMirror pt, Element relative) {

  1743         if (pt.getKind() == TypeKind.ERROR) {

  1744             final Elements eu = processingEnv.getElementUtils();

  1745             PackageElement pckg = eu.getPackageOf(relative);

  1746             return pckg.getQualifiedName() + "." + pt.toString();

  1747         }

  1748         return pt.toString();

  1749     }

  1751     private String checkType(Prprt p, boolean[] isModel, boolean[] isEnum, boolean[] isPrimitive) {

  1752         TypeMirror tm;

  1753         try {

  1754             String ret = p.typeName(processingEnv);

  1755             TypeElement e = processingEnv.getElementUtils().getTypeElement(ret);

  1756             if (e == null) {

  1757                 isModel[0] = true;

  1758                 isEnum[0] = false;

  1759                 isPrimitive[0] = false;

  1760                 return ret;

  1761             }

  1762             tm = e.asType();

  1763         } catch (MirroredTypeException ex) {

  1764             tm = ex.getTypeMirror();

  1765         }

  1766         tm = processingEnv.getTypeUtils().erasure(tm);

  1767         if (isPrimitive[0] = tm.getKind().isPrimitive()) {

  1768             isEnum[0] = false;

  1769             isModel[0] = false;

  1770             return tm.toString();

  1771         }

  1772         final Element e = processingEnv.getTypeUtils().asElement(tm);

  1773         if (e.getKind() == ElementKind.CLASS && tm.getKind() == TypeKind.ERROR) {

  1774             isModel[0] = true;

  1775             isEnum[0] = false;

  1776             return e.getSimpleName().toString();

  1777         }

  1779         final Model m = e == null ? null : e.getAnnotation(Model.class);

  1780         String ret;

  1781         if (m != null) {

  1782             ret = findPkgName(e) + '.' + m.className();

  1783             isModel[0] = true;

  1784             models.put(e, m.className());

  1785         } else if (findModelForMthd(e)) {

  1786             ret = ((TypeElement)e).getQualifiedName().toString();

  1787             isModel[0] = true;

  1788         } else {

  1789             ret = tm.toString();

  1790         }

  1791         TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();

  1792         enm = processingEnv.getTypeUtils().erasure(enm);

  1793         isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);

  1794         return ret;

  1795     }

  1797     private static boolean findModelForMthd(Element clazz) {

  1798         if (clazz == null) {

  1799             return false;

  1800         }

  1801         for (Element e : clazz.getEnclosedElements()) {

  1802             if (e.getKind() == ElementKind.METHOD) {

  1803                 ExecutableElement ee = (ExecutableElement)e;

  1804                 if (

  1805                     ee.getSimpleName().contentEquals("modelFor") &&

  1806                     ee.getParameters().isEmpty()

  1807                 ) {

  1808                     return true;

  1809                 }

  1810             }

  1811         }

  1812         return false;

  1813     }

  1815     private void findParamNames(

  1816         Set<String> params, Element e, String url, String jsonParam, StringBuilder... both

  1817     ) {

  1818         int wasJSON = 0;

  1820         for (int pos = 0; ;) {

  1821             int next = url.indexOf('{', pos);

  1822             if (next == -1) {

  1823                 both[wasJSON].append('"')

  1824                     .append(url.substring(pos).replace("\"", "\\\""))

  1825                     .append('"');

  1826                 return;

  1827             }

  1828             int close = url.indexOf('}', next);

  1829             if (close == -1) {

  1830                 error("Unbalanced '{' and '}' in " + url, e);

  1831                 return;

  1832             }

  1833             final String paramName = url.substring(next + 1, close);

  1834             params.add(paramName);

  1835             if (paramName.equals(jsonParam) && !jsonParam.isEmpty()) {

  1836                 both[wasJSON].append('"')

  1837                     .append(url.substring(pos, next).replace("\"", "\\\""))

  1838                     .append('"');

  1839                 wasJSON = 1;

  1840             } else {

  1841                 both[wasJSON].append('"')

  1842                     .append(url.substring(pos, next).replace("\"", "\\\""))

  1843                     .append("\" + ").append(paramName).append(" + ");

  1844             }

  1845             pos = close + 1;

  1846         }

  1847     }

  1849     private static Prprt findPrprt(Prprt[] properties, String propName) {

  1850         for (Prprt p : properties) {

  1851             if (propName.equals(p.name())) {

  1852                 return p;

  1853             }

  1854         }

  1855         return null;

  1856     }

  1858     private boolean isPrimitive(String type) {

  1859         return

  1860             "int".equals(type) ||

  1861             "double".equals(type) ||

  1862             "long".equals(type) ||

  1863             "short".equals(type) ||

  1864             "byte".equals(type) ||

  1865             "char".equals(type) ||

  1866             "boolean".equals(type) ||

  1867             "float".equals(type);

  1868     }

  1870     private static Collection<String> findDerivedFrom(Map<String, Collection<String[]>> propsDeps, String derivedProp) {

  1871         Set<String> names = new HashSet<String>();

  1872         for (Map.Entry<String, Collection<String[]>> e : propsDeps.entrySet()) {

  1873             for (String[] pair : e.getValue()) {

  1874                 if (pair[0].equals(derivedProp)) {

  1875                     names.add(e.getKey());

  1876                     break;

  1877                 }

  1878             }

  1879         }

  1880         return names;

  1881     }

  1883     private Prprt[] createProps(Element e, Property[] arr) {

  1884         Prprt[] ret = Prprt.wrap(processingEnv, e, arr);

  1885         Prprt[] prev = verify.put(e, ret);

  1886         if (prev != null) {

  1887             error("Two sets of properties for ", e);

  1888         }

  1889         return ret;

  1890     }

  1892     private static String strip(String s) {

  1893         int indx = s.indexOf("__");

  1894         if (indx >= 0) {

  1895             return s.substring(0, indx);

  1896         } else {

  1897             return s;

  1898         }

  1899     }

  1901     private String findDataSpecified(ExecutableElement e, OnReceive onR) {

  1902         try {

  1903             return onR.data().getName();

  1904         } catch (MirroredTypeException ex) {

  1905             final TypeMirror tm = ex.getTypeMirror();

  1906             String name;

  1907             final Element te = processingEnv.getTypeUtils().asElement(tm);

  1908             if (te.getKind() == ElementKind.CLASS && tm.getKind() == TypeKind.ERROR) {

  1909                 name = te.getSimpleName().toString();

  1910             } else {

  1911                 name = tm.toString();

  1912             }

  1913             return "java.lang.Object".equals(name) ? null : name;

  1914         } catch (Exception ex) {

  1915             // fallback

  1916         }

  1918         AnnotationMirror found = null;

  1919         for (AnnotationMirror am : e.getAnnotationMirrors()) {

  1920             if (am.getAnnotationType().toString().equals(OnReceive.class.getName())) {

  1921                 found = am;

  1922             }

  1923         }

  1924         if (found == null) {

  1925             return null;

  1926         }

  1928         for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : found.getElementValues().entrySet()) {

  1929             ExecutableElement ee = entry.getKey();

  1930             AnnotationValue av = entry.getValue();

  1931             if (ee.getSimpleName().contentEquals("data")) {

  1932                 List<? extends Object> values = getAnnoValues(processingEnv, e, found);

  1933                 for (Object v : values) {

  1934                     String sv = v.toString();

  1935                     if (sv.startsWith("data = ") && sv.endsWith(".class")) {

  1936                         return sv.substring(7, sv.length() - 6);

  1937                     }

  1938                 }

  1939                 return "error";

  1940             }

  1941         }

  1942         return null;

  1943     }

  1945     static List<? extends Object> getAnnoValues(ProcessingEnvironment pe, Element e, AnnotationMirror am) {

  1946         try {

  1947             Class<?> trees = Class.forName("com.sun.tools.javac.api.JavacTrees");

  1948             Method m = trees.getMethod("instance", ProcessingEnvironment.class);

  1949             Object instance = m.invoke(null, pe);

  1950             m = instance.getClass().getMethod("getPath", Element.class, AnnotationMirror.class);

  1951             Object path = m.invoke(instance, e, am);

  1952             m = path.getClass().getMethod("getLeaf");

  1953             Object leaf = m.invoke(path);

  1954             m = leaf.getClass().getMethod("getArguments");

  1955             return (List) m.invoke(leaf);

  1956         } catch (Exception ex) {

  1957             return Collections.emptyList();

  1958         }

  1959     }

  1961     private static String findTargetId(Element e) {

  1962         for (AnnotationMirror m : e.getAnnotationMirrors()) {

  1963             if (m.getAnnotationType().toString().equals(Model.class.getName())) {

  1964                 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entrySet : m.getElementValues().entrySet()) {

  1965                     ExecutableElement key = entrySet.getKey();

  1966                     AnnotationValue value = entrySet.getValue();

  1967                     if ("targetId()".equals(key.toString())) {

  1968                         return value.toString();

  1969                     }

  1970                 }

  1971             }

  1972         }

  1973         return null;

  1974     }

  1976     private static class Prprt {

  1977         private final Element e;

  1978         private final AnnotationMirror tm;

  1979         private final Property p;

  1981         public Prprt(Element e, AnnotationMirror tm, Property p) {

  1982             this.e = e;

  1983             this.tm = tm;

  1984             this.p = p;

  1985         }

  1987         String name() {

  1988             return p.name();

  1989         }

  1991         boolean array() {

  1992             return p.array();

  1993         }

  1995         String typeName(ProcessingEnvironment env) {

  1996             RuntimeException ex;

  1997             try {

  1998                 return p.type().getName();

  1999             } catch (IncompleteAnnotationException e) {

  2000                 ex = e;

  2001             } catch (AnnotationTypeMismatchException e) {

  2002                 ex = e;

  2003             }

  2004             for (Object v : getAnnoValues(env, e, tm)) {

  2005                 String s = v.toString().replace(" ", "");

  2006                 if (s.startsWith("type=") && s.endsWith(".class")) {

  2007                     return s.substring(5, s.length() - 6);

  2008                 }

  2009             }

  2010             throw ex;

  2011         }

  2014         static Prprt[] wrap(ProcessingEnvironment pe, Element e, Property[] arr) {

  2015             if (arr.length == 0) {

  2016                 return new Prprt[0];

  2017             }

  2019             if (e.getKind() != ElementKind.CLASS) {

  2020                 throw new IllegalStateException("" + e.getKind());

  2021             }

  2022             TypeElement te = (TypeElement)e;

  2023             List<? extends AnnotationValue> val = null;

  2024             for (AnnotationMirror an : te.getAnnotationMirrors()) {

  2025                 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : an.getElementValues().entrySet()) {

  2026                     if (entry.getKey().getSimpleName().contentEquals("properties")) {

  2027                         val = (List)entry.getValue().getValue();

  2028                         break;

  2029                     }

  2030                 }

  2031             }

  2032             if (val == null || val.size() != arr.length) {

  2033                 pe.getMessager().printMessage(Diagnostic.Kind.ERROR, "" + val, e);

  2034                 return new Prprt[0];

  2035             }

  2036             Prprt[] ret = new Prprt[arr.length];

  2037             BIG: for (int i = 0; i < ret.length; i++) {

  2038                 AnnotationMirror am = (AnnotationMirror)val.get(i).getValue();

  2039                 ret[i] = new Prprt(e, am, arr[i]);

  2041             }

  2042             return ret;

  2043         }

  2044     } // end of Prprt

  2046     private static final class GetSet {

  2047         final String name;

  2048         final String getter;

  2049         final String setter;

  2050         final String type;

  2051         final boolean readOnly;

  2052         GetSet(String name, String getter, String setter, String type, boolean readOnly) {

  2053             this.name = name;

  2054             this.getter = getter;

  2055             this.setter = setter;

  2056             this.type = type;

  2057             this.readOnly = readOnly;

  2058         }

  2059     }

  2061     @Override

  2062     public Iterable<? extends Completion> getCompletions(Element element, AnnotationMirror annotation, ExecutableElement member, String userText) {

  2063         final Level l = Level.FINE;

  2064         LOG.log(l, " element: {0}", element);

  2065         LOG.log(l, " annotation: {0}", annotation);

  2066         LOG.log(l, " member: {0}", member);

  2067         LOG.log(l, " userText: {0}", userText);

  2068         LOG.log(l, "str: {0}", annotation.getAnnotationType().toString());

  2069         if (annotation.getAnnotationType().toString().equals(OnReceive.class.getName())) {

  2070             if (member.getSimpleName().contentEquals("method")) {

  2071                 return Arrays.asList(

  2072                     methodOf("GET"),

  2073                     methodOf("POST"),

  2074                     methodOf("PUT"),

  2075                     methodOf("DELETE"),

  2076                     methodOf("HEAD"),

  2077                     methodOf("WebSocket")

  2078                 );

  2079             }

  2080         }

  2082         return super.getCompletions(element, annotation, member, userText);

  2083     }

  2085     private static final Completion methodOf(String method) {

  2086         ResourceBundle rb = ResourceBundle.getBundle("org.netbeans.html.json.impl.Bundle");

  2087         return Completions.of('"' + method + '"', rb.getString("MSG_Completion_" + method));

  2088     }

  2090     private boolean findOnError(ExecutableElement errElem, TypeElement te, String name, String className) {

  2091         String err = null;

  2092         METHODS:

  2093         for (Element e : te.getEnclosedElements()) {

  2094             if (e.getKind() != ElementKind.METHOD) {

  2095                 continue;

  2096             }

  2097             if (!e.getSimpleName().contentEquals(name)) {

  2098                 continue;

  2099             }

  2100             if (!e.getModifiers().contains(Modifier.STATIC)) {

  2101                 errElem = (ExecutableElement) e;

  2102                 err = "Would have to be static";

  2103                 continue;

  2104             }

  2105             ExecutableElement ee = (ExecutableElement) e;

  2106             TypeMirror excType = processingEnv.getElementUtils().getTypeElement(Exception.class.getName()).asType();

  2107             final List<? extends VariableElement> params = ee.getParameters();

  2108             boolean error = false;

  2109             if (params.size() != 2) {

  2110                 error = true;

  2111             } else {

  2112                 String firstType = params.get(0).asType().toString();

  2113                 int lastDot = firstType.lastIndexOf('.');

  2114                 if (lastDot != -1) {

  2115                     firstType = firstType.substring(lastDot + 1);

  2116                 }

  2117                 if (!firstType.equals(className)) {

  2118                     error = true;

  2119                 }

  2120                 if (!processingEnv.getTypeUtils().isAssignable(excType, params.get(1).asType())) {

  2121                     error = true;

  2122                 }

  2123             }

  2124             if (error) {

  2125                 errElem = (ExecutableElement) e;

  2126                 err = "Error method first argument needs to be " + className + " and second Exception";

  2127                 continue;

  2128             }

  2129             return true;

  2130         }

  2131         if (err == null) {

  2132             err = "Cannot find " + name + "(" + className + ", Exception) method in this class";

  2133         }

  2134         error(err, errElem);

  2135         return false;

  2136     }

  2138     private ExecutableElement findWrite(ExecutableElement computedPropElem, TypeElement te, String name, String className) {

  2139         String err = null;

  2140         METHODS:

  2141         for (Element e : te.getEnclosedElements()) {

  2142             if (e.getKind() != ElementKind.METHOD) {

  2143                 continue;

  2144             }

  2145             if (!e.getSimpleName().contentEquals(name)) {

  2146                 continue;

  2147             }

  2148             if (e.equals(computedPropElem)) {

  2149                 continue;

  2150             }

  2151             if (!e.getModifiers().contains(Modifier.STATIC)) {

  2152                 computedPropElem = (ExecutableElement) e;

  2153                 err = "Would have to be static";

  2154                 continue;

  2155             }

  2156             ExecutableElement ee = (ExecutableElement) e;

  2157             if (ee.getReturnType().getKind() != TypeKind.VOID) {

  2158                 computedPropElem = (ExecutableElement) e;

  2159                 err = "Write method has to return void";

  2160                 continue;

  2161             }

  2162             TypeMirror retType = computedPropElem.getReturnType();

  2163             final List<? extends VariableElement> params = ee.getParameters();

  2164             boolean error = false;

  2165             if (params.size() != 2) {

  2166                 error = true;

  2167             } else {

  2168                 String firstType = params.get(0).asType().toString();

  2169                 int lastDot = firstType.lastIndexOf('.');

  2170                 if (lastDot != -1) {

  2171                     firstType = firstType.substring(lastDot + 1);

  2172                 }

  2173                 if (!firstType.equals(className)) {

  2174                     error = true;

  2175                 }

  2176                 if (!processingEnv.getTypeUtils().isAssignable(retType, params.get(1).asType())) {

  2177                     error = true;

  2178                 }

  2179             }

  2180             if (error) {

  2181                 computedPropElem = (ExecutableElement) e;

  2182                 err = "Write method first argument needs to be " + className + " and second " + retType + " or Object";

  2183                 continue;

  2184             }

  2185             return ee;

  2186         }

  2187         if (err == null) {

  2188             err = "Cannot find " + name + "(" + className + ", value) method in this class";

  2189         }

  2190         error(err, computedPropElem);

  2191         return null;

  2192     }

  2194 }

author	Jaroslav Tulach <jtulach@netbeans.org>
	Sun, 13 Dec 2015 21:33:32 +0100
changeset 1030	02568f34628a
parent 1026	cda94194f901
parent 1023	4f906bde3a2e
child 1035	3534e15dc446
child 1039	3ef632633f36
permissions	-rw-r--r--