hg/html~html4j: json/src/main/java/org/netbeans/html/json/impl/ModelProcessor.java@c89b9f91ed18

     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());

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

   194                 ok = false;

   195             }

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

   197                 ok = false;

   198             }

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

   200                 ok = false;

   201             }

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

   203                 ok = false;

   204             }

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

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

   207                 for (Prprt p : props) {

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

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

   210                         ok = false;

   211                     }

   212                 }

   213             }

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

   215                 ok = false;

   216             }

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

   218                 ok = false;

   219             }

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

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

   222             try {

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

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

   225                 final String inPckName = inPckName(e);

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

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

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

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

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

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

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

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

   234                 for (Prprt p : props) {

   235                     if (p.array()) {

   236                         final String tn = typeName(p);

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

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

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

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

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

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

   243                         } else {

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

   245                         }

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

   247                         if (dependants != null) {

   248                             for (String[] depProp : dependants) {

   249                                 w.write(", ");

   250                                 w.write('\"');

   251                                 w.write(depProp[0]);

   252                                 w.write('\"');

   253                             }

   254                         }

   255                         w.write(")");

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

   257                     }

   258                 }

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

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

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

   262                 for (Prprt p : props) {

   263                     if (!p.array()) {

   264                         boolean[] isModel = {false};

   265                         boolean[] isEnum = {false};

   266                         boolean isPrimitive[] = {false};

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

   268                         if (isModel[0]) {

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

   270                         }

   271                     }

   272                 }

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

   274                 if (props.length > 0) {

   275                     StringBuilder constructorWithArguments = new StringBuilder();

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

   277                     Prprt firstArray = null;

   278                     String sep = "";

   279                     int parameterCount = 0;

   280                     for (Prprt p : props) {

   281                         if (p.array()) {

   282                             if (firstArray == null) {

   283                                 firstArray = p;

   284                             }

   285                             continue;

   286                         }

   287                         String tn = typeName(p);

   288                         constructorWithArguments.append(sep);

   289                         constructorWithArguments.append(tn);

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

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

   292                         sep = ", ";

   293                         parameterCount++;

   294                     }

   295                     if (firstArray != null) {

   296                         String tn;

   297                         boolean[] isModel = {false};

   298                         boolean[] isEnum = {false};

   299                         boolean isPrimitive[] = {false};

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

   301                         constructorWithArguments.append(sep);

   302                         constructorWithArguments.append(tn);

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

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

   305                         parameterCount++;

   306                     }

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

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

   309                     for (Prprt p : props) {

   310                         if (p.array()) {

   311                             continue;

   312                         }

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

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

   315                     }

   316                     if (firstArray != null) {

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

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

   319                     }

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

   321                     if (parameterCount < 255) {

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

   323                     }

   324                 }

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

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

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

   328                     + functionsCount + ");\n");

   329                 {

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

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

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

   333                     }

   334                 }

   335                 {

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

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

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

   339                     }

   340                 }

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

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

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

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

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

   346                     if (pgs.readOnly) {

   347                         continue;

   348                     }

   349                     final String set = pgs.setter;

   350                     String tn = pgs.type;

   351                     String btn = findBoxedType(tn);

   352                     if (btn != null) {

   353                         tn = btn;

   354                     }

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

   356                     if (pgs.setter != null) {

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

   358                     } else {

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

   360                     }

   361                 }

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

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

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

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

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

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

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

   369                     if (get != null) {

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

   371                     }

   372                 }

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

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

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

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

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

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

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

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

   381                     if (param instanceof ExecutableElement) {

   382                         ExecutableElement ee = (ExecutableElement)param;

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

   384                         w.append("          ").append(((TypeElement)e).getQualifiedName()).append(".").append(name).append("(");

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

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

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

   388                     } else {

   389                         String call = (String)param;

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

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

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

   394                     }

   395                 }

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

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

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

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

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

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

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

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

   404                 {

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

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

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

   408                         if (onChange != null) {

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

   410                             for (String call : onChange) {

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

   412                             }

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

   414                         }

   415                     }

   416                 }

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

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

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

   420                 w.append(onReceiveType);

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

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

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

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

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

   426                 int values = 0;

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

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

   429                     if (p == null) {

   430                         continue;

   431                     }

   432                     values++;

   433                 }

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

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

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

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

   438                     if (p == null) {

   439                         continue;

   440                     }

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

   442                 }

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

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

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

   446                     Prprt p = findPrprt(props, pn);

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

   448                         continue;

   449                     }

   450                     boolean[] isModel = { false };

   451                     boolean[] isEnum = { false };

   452                     boolean isPrimitive[] = { false };

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

   454                     if (p.array()) {

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

   456                         if (isModel[0]) {

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

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

   459                         } else if (isEnum[0]) {

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

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

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

   463                         } else {

   464                             if (isPrimitive(type)) {

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

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

   467                             } else {

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

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

   470                             }

   471                         }

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

   473                     } else {

   474                         if (isEnum[0]) {

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

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

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

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

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

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

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

   482                         } else if (isPrimitive(type)) {

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

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

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

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

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

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

   489                             } else {

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

   491                             }

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

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

   494                         } else if (isModel[0]) {

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

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

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

   498                         }else {

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

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

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

   502                         }

   503                     }

   504                     cnt++;

   505                 }

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

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

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

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

   510                 writeToString(props, w);

   511                 writeClone(className, props, w);

   512                 String targetId = findTargetId(e);

   513                 if (targetId != null) {

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

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

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

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

   518                         + "the surrounding HTML page.\n"

   519                     );

   520                     if (targetId != null) {

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

   522                     }

   523                     w.write(""

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

   525                         + "*/\n"

   526                     );

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

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

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

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

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

   532                 } else {

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

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

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

   536                 }

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

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

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

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

   541                 for (Prprt p : props) {

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

   543                 }

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

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

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

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

   548                 for (Prprt p : props) {

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

   550                 }

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

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

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

   554             } finally {

   555                 w.close();

   556             }

   557         } catch (IOException ex) {

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

   559             return false;

   560         }

   561         return ok;

   562     }

   564     private boolean generateProperties(

   565         Element where,

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

   567         List<GetSet> props,

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

   569         Map<String,Collection<String>> functionDeps

   570     ) throws IOException {

   571         boolean ok = true;

   572         for (Prprt p : properties) {

   573             final String tn;

   574             tn = typeName(p);

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

   576             String castTo;

   578             if (p.array()) {

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

   581                 castTo = "java.util.List";

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

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

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

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

   586             } else {

   587                 castTo = tn;

   588                 boolean isModel[] = { false };

   589                 boolean isEnum[] = { false };

   590                 boolean isPrimitive[] = { false };

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

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

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

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

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

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

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

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

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

   600                 if (isModel[0]) {

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

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

   603                 } else {

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

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

   606                 }

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

   608                 {

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

   610                     if (dependants != null) {

   611                         for (String[] pair : dependants) {

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

   613                         }

   614                     }

   615                 }

   616                 {

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

   618                     if (dependants != null) {

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

   620                         for (String call : dependants) {

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

   622                         }

   623                     }

   624                 }

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

   626             }

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

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

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

   631                     ok = false;

   632                 }

   633             }

   635             props.add(new GetSet(

   636                 p.name(),

   637                 gs[0],

   638                 gs[1],

   639                 tn,

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

   641             ));

   642         }

   643         return ok;

   644     }

   646     private boolean generateComputedProperties(

   647         String className,

   648         Writer w, Prprt[] fixedProps,

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

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

   651     ) throws IOException {

   652         boolean ok = true;

   653         for (Element e : arr) {

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

   655                 continue;

   656             }

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

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

   659             if (cp == null) {

   660                 continue;

   661             }

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

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

   664                 ok = false;

   665                 continue;

   666             }

   667             ExecutableElement ee = (ExecutableElement)e;

   668             ExecutableElement write = null;

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

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

   671                 ok = write != null;

   672             }

   673             final TypeMirror rt = ee.getReturnType();

   674             final Types tu = processingEnv.getTypeUtils();

   675             TypeMirror ert = tu.erasure(rt);

   676             String tn = fqn(ert, ee);

   677             boolean array = false;

   678             final TypeMirror toCheck;

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

   680                 array = true;

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

   682             } else {

   683                 toCheck = rt;

   684             }

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

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

   689                 // OK

   690             } else {

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

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

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

   695                     // OK

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

   697                     // OK

   698                 } else if (isModel(toCheck)) {

   699                     // OK

   700                 } else {

   701                     try {

   702                         tu.unboxedType(toCheck);

   703                         // boxed types are OK

   704                     } catch (IllegalArgumentException ex) {

   705                         ok = false;

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

   707                     }

   708                 }

   709             }

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

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

   714             if (array) {

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

   716             }

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

   718             int arg = 0;

   719             boolean deep = false;

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

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

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

   724                     ok = false;

   725                 }

   726                 final TypeMirror pt = pe.asType();

   727                 if (isModel(pt)) {

   728                     deep = true;

   729                 }

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

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

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

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

   734                         deep = true;

   735                     }

   736                 }

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

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

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

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

   742                 if (depends == null) {

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

   744                     deps.put(dn, depends);

   745                 }

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

   747             }

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

   749             if (tp != null) {

   750                 deep = tp.deep();

   751             }

   752             if (deep) {

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

   754             } else {

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

   756             }

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

   758             String sep = "";

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

   760                 w.write(sep);

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

   762                 sep = ", ";

   763             }

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

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

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

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

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

   770             if (write == null) {

   771                 props.add(new GetSet(

   772                     e.getSimpleName().toString(),

   773                     gs[0],

   774                     null,

   775                     tn,

   776                     true

   777                 ));

   778             } else {

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

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

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

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

   784                 props.add(new GetSet(

   785                     e.getSimpleName().toString(),

   786                     gs[0],

   787                     gs[4],

   788                     tn,

   789                     false

   790                 ));

   791             }

   792         }

   794         return ok;

   795     }

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

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

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

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

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

   802             pref = "is";

   803         }

   804         if (array) {

   805             return new String[] {

   806                 pref + n,

   807                 null,

   808                 "a" + n,

   809                 null,

   810                 "set" + n

   811             };

   812         }

   813         return new String[]{

   814             pref + n,

   815             "set" + n,

   816             "a" + n,

   817             "",

   818             "set" + n

   819         };

   820     }

   822     private String typeName(Prprt p) {

   823         String ret;

   824         boolean[] isModel = { false };

   825         boolean[] isEnum = { false };

   826         boolean isPrimitive[] = { false };

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

   828         if (p.array()) {

   829             String bt = findBoxedType(ret);

   830             if (bt != null) {

   831                 return bt;

   832             }

   833         }

   834         return ret;

   835     }

   837     private static String findBoxedType(String ret) {

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

   839             return Boolean.class.getName();

   840         }

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

   842             return Byte.class.getName();

   843         }

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

   845             return Short.class.getName();

   846         }

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

   848             return Character.class.getName();

   849         }

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

   851             return Integer.class.getName();

   852         }

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

   854             return Long.class.getName();

   855         }

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

   857             return Float.class.getName();

   858         }

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

   860             return Double.class.getName();

   861         }

   862         return null;

   863     }

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

   866         StringBuilder sb = new StringBuilder();

   867         String sep = "";

   868         for (Prprt Prprt : existingProps) {

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

   870                 return true;

   871             }

   872             sb.append(sep);

   873             sb.append('"');

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

   875             sb.append('"');

   876             sep = ", ";

   877         }

   878         error(

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

   880             , e

   881         );

   882         return false;

   883     }

   885     private static String findPkgName(Element e) {

   886         for (;;) {

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

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

   889             }

   890             e = e.getEnclosingElement();

   891         }

   892     }

   894     private boolean generateFunctions(

   895         Element clazz, StringWriter body, String className,

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

   897     ) {

   898         for (Element m : enclosedElements) {

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

   900                 continue;

   901             }

   902             ExecutableElement e = (ExecutableElement)m;

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

   904             if (onF == null) {

   905                 continue;

   906             }

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

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

   909                 return false;

   910             }

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

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

   913                 return false;

   914             }

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

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

   917                 return false;

   918             }

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

   920             functions.add(n);

   921             functions.add(e);

   922         }

   923         return true;

   924     }

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

   927         Prprt[] properties, String className,

   928         Map<String, Collection<String>> functionDeps

   929     ) {

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

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

   932                 continue;

   933             }

   934             ExecutableElement e = (ExecutableElement) m;

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

   936             if (onPC == null) {

   937                 continue;

   938             }

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

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

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

   942                     return false;

   943                 }

   944             }

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

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

   947                 return false;

   948             }

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

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

   951                 return false;

   952             }

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

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

   955                 return false;

   956             }

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

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

   961                 StringBuilder call = new StringBuilder();

   962                 call.append("  ").append(clazz.getSimpleName()).append(".").append(n).append("(");

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

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

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

   967                 if (change == null) {

   968                     change = new ArrayList<String>();

   969                     functionDeps.put(pn, change);

   970                 }

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

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

   973                     change = functionDeps.get(dpn);

   974                     if (change == null) {

   975                         change = new ArrayList<String>();

   976                         functionDeps.put(dpn, change);

   977                     }

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

   979                 }

   980             }

   981         }

   982         return true;

   983     }

   985     private boolean generateOperation(Element clazz,

   986         StringWriter body, String className,

   987         List<? extends Element> enclosedElements,

   988         List<Object> functions

   989     ) {

   990         for (Element m : enclosedElements) {

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

   992                 continue;

   993             }

   994             ExecutableElement e = (ExecutableElement)m;

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

   996             if (mO == null) {

   997                 continue;

   998             }

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

  1000                 error("@ModelOperation method needs to be static", e);

  1001                 return false;

  1002             }

  1003             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1004                 error("@ModelOperation method cannot be private", e);

  1005                 return false;

  1006             }

  1007             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1008                 error("@ModelOperation method should return void", e);

  1009                 return false;

  1010             }

  1011             List<String> args = new ArrayList<String>();

  1012             {

  1013                 body.append("  public void ").append(m.getSimpleName()).append("(");

  1014                 String sep = "";

  1015                 boolean checkFirst = true;

  1016                 for (VariableElement ve : e.getParameters()) {

  1017                     final TypeMirror type = ve.asType();

  1018                     CharSequence simpleName;

  1019                     if (type.getKind() == TypeKind.DECLARED) {

  1020                         simpleName = ((DeclaredType)type).asElement().getSimpleName();

  1021                     } else {

  1022                         simpleName = type.toString();

  1023                     }

  1024                     if (checkFirst && simpleName.toString().equals(className)) {

  1025                         checkFirst = false;

  1026                     } else {

  1027                         if (checkFirst) {

  1028                             error("First parameter of @ModelOperation method must be " + className, m);

  1029                             return false;

  1030                         }

  1031                         args.add(ve.getSimpleName().toString());

  1032                         body.append(sep).append("final ");

  1033                         body.append(ve.asType().toString()).append(" ");

  1034                         body.append(ve.toString());

  1035                         sep = ", ";

  1036                     }

  1037                 }

  1038                 body.append(") {\n");

  1039                 int idx = functions.size() / 2;

  1040                 functions.add(m.getSimpleName().toString());

  1041                 body.append("    proto.runInBrowser(" + idx);

  1042                 for (String s : args) {

  1043                     body.append(", ").append(s);

  1044                 }

  1045                 body.append(");\n");

  1046                 body.append("  }\n");

  1048                 StringBuilder call = new StringBuilder();

  1049                 call.append("{ Object[] arr = (Object[])data; ");

  1050                 call.append(inPckName(clazz)).append(".").append(m.getSimpleName()).append("(");

  1051                 int i = 0;

  1052                 for (VariableElement ve : e.getParameters()) {

  1053                     if (i++ == 0) {

  1054                         call.append("model");

  1055                         continue;

  1056                     }

  1057                     String type = ve.asType().toString();

  1058                     String boxedType = findBoxedType(type);

  1059                     if (boxedType != null) {

  1060                         type = boxedType;

  1061                     }

  1062                     call.append(", ").append("(").append(type).append(")arr[").append(i - 2).append("]");

  1063                 }

  1064                 call.append("); }");

  1065                 functions.add(call.toString());

  1066             }

  1068         }

  1069         return true;

  1070     }

  1073     private boolean generateReceive(

  1074         Element clazz, StringWriter body, String className,

  1075         List<? extends Element> enclosedElements, StringBuilder inType

  1076     ) {

  1077         boolean ret = generateReceiveImpl(clazz, body, className, enclosedElements, inType);

  1078         if (!ret) {

  1079             inType.setLength(0);

  1080         }

  1081         return ret;

  1082     }

  1083     private boolean generateReceiveImpl(

  1084         Element clazz, StringWriter body, String className,

  1085         List<? extends Element> enclosedElements, StringBuilder inType

  1086     ) {

  1087         inType.append("  @Override public void onMessage(").append(className).append(" model, int index, int type, Object data, Object[] params) {\n");

  1088         inType.append("    switch (index) {\n");

  1089         int index = 0;

  1090         boolean ok = true;

  1091         for (Element m : enclosedElements) {

  1092             if (m.getKind() != ElementKind.METHOD) {

  1093                 continue;

  1094             }

  1095             ExecutableElement e = (ExecutableElement)m;

  1096             OnReceive onR = e.getAnnotation(OnReceive.class);

  1097             if (onR == null) {

  1098                 continue;

  1099             }

  1100             if (!e.getModifiers().contains(Modifier.STATIC)) {

  1101                 error("@OnReceive method needs to be static", e);

  1102                 return false;

  1103             }

  1104             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1105                 error("@OnReceive method cannot be private", e);

  1106                 return false;

  1107             }

  1108             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1109                 error("@OnReceive method should return void", e);

  1110                 return false;

  1111             }

  1112             if (!onR.jsonp().isEmpty() && !"GET".equals(onR.method())) {

  1113                 error("JSONP works only with GET transport method", e);

  1114             }

  1115             String dataMirror = findDataSpecified(e, onR);

  1116             if ("PUT".equals(onR.method()) && dataMirror == null) {

  1117                 error("PUT method needs to specify a data() class", e);

  1118                 return false;

  1119             }

  1120             if ("POST".equals(onR.method()) && dataMirror == null) {

  1121                 error("POST method needs to specify a data() class", e);

  1122                 return false;

  1123             }

  1124             if (e.getParameters().size() < 2) {

  1125                 error("@OnReceive method needs at least two parameters", e);

  1126             }

  1127             final boolean isWebSocket = "WebSocket".equals(onR.method());

  1128             if (isWebSocket && dataMirror == null) {

  1129                 error("WebSocket method needs to specify a data() class", e);

  1130             }

  1131             int expectsList = 0;

  1132             List<String> args = new ArrayList<String>();

  1133             List<String> params = new ArrayList<String>();

  1134             // first argument is model class

  1135             {

  1136                 TypeMirror type = e.getParameters().get(0).asType();

  1137                 CharSequence simpleName;

  1138                 if (type.getKind() == TypeKind.DECLARED) {

  1139                     simpleName = ((DeclaredType) type).asElement().getSimpleName();

  1140                 } else {

  1141                     simpleName = type.toString();

  1142                 }

  1143                 if (simpleName.toString().equals(className)) {

  1144                     args.add("model");

  1145                 } else {

  1146                     error("First parameter needs to be " + className, e);

  1147                     return false;

  1148                 }

  1149             }

  1151             String modelClass;

  1152             {

  1153                 final Types tu = processingEnv.getTypeUtils();

  1154                 TypeMirror type = e.getParameters().get(1).asType();

  1155                 TypeMirror modelType = null;

  1156                 TypeMirror ert = tu.erasure(type);

  1158                 if (isModel(type)) {

  1159                     modelType = type;

  1160                 } else if (type.getKind() == TypeKind.ARRAY) {

  1161                     modelType = ((ArrayType)type).getComponentType();

  1162                     expectsList = 1;

  1163                 } else if ("java.util.List".equals(fqn(ert, e))) {

  1164                     List<? extends TypeMirror> typeArgs = ((DeclaredType)type).getTypeArguments();

  1165                     if (typeArgs.size() == 1) {

  1166                         modelType = typeArgs.get(0);

  1167                         expectsList = 2;

  1168                     }

  1169                 } else if (type.toString().equals("java.lang.String")) {

  1170                     modelType = type;

  1171                 }

  1172                 if (modelType == null) {

  1173                     error("Second arguments needs to be a model, String or array or List of models", e);

  1174                     return false;

  1175                 }

  1176                 modelClass = modelType.toString();

  1177                 if (expectsList == 1) {

  1178                     args.add("arr");

  1179                 } else if (expectsList == 2) {

  1180                     args.add("java.util.Arrays.asList(arr)");

  1181                 } else {

  1182                     args.add("arr[0]");

  1183                 }

  1184             }

  1185             String n = e.getSimpleName().toString();

  1186             if (isWebSocket) {

  1187                 body.append("  /** Performs WebSocket communication. Call with <code>null</code> data parameter\n");

  1188                 body.append("  * to open the connection (even if not required). Call with non-null data to\n");

  1189                 body.append("  * send messages to server. Call again with <code>null</code> data to close the socket.\n");

  1190                 body.append("  */\n");

  1191                 if (onR.headers().length > 0) {

  1192                     error("WebSocket spec does not support headers", e);

  1193                 }

  1194             }

  1195             body.append("  public void ").append(n).append("(");

  1196             StringBuilder urlBefore = new StringBuilder();

  1197             StringBuilder urlAfter = new StringBuilder();

  1198             StringBuilder headers = new StringBuilder();

  1199             String jsonpVarName = null;

  1200             {

  1201                 String sep = "";

  1202                 boolean skipJSONP = onR.jsonp().isEmpty();

  1203                 Set<String> receiveParams = new LinkedHashSet<String>();

  1204                 findParamNames(receiveParams, e, onR.url(), onR.jsonp(), urlBefore, urlAfter);

  1205                 for (String headerLine : onR.headers()) {

  1206                     if (headerLine.contains("\r") || headerLine.contains("\n")) {

  1207                         error("Header line cannot contain line separator", e);

  1208                     }

  1209                     findParamNames(receiveParams, e, headerLine, null, headers);

  1210                     headers.append("+ \"\\r\\n\" +\n");

  1211                 }

  1212                 if (headers.length() > 0) {

  1213                     headers.append("\"\"");

  1214                 }

  1215                 for (String p : receiveParams) {

  1216                     if (!skipJSONP && p.equals(onR.jsonp())) {

  1217                         skipJSONP = true;

  1218                         jsonpVarName = p;

  1219                         continue;

  1220                     }

  1221                     body.append(sep);

  1222                     body.append("String ").append(p);

  1223                     sep = ", ";

  1224                 }

  1225                 if (!skipJSONP) {

  1226                     error(

  1227                         "Name of jsonp attribute ('" + onR.jsonp() +

  1228                         "') is not used in url attribute '" + onR.url() + "'", e

  1229                     );

  1230                 }

  1231                 if (dataMirror != null) {

  1232                     body.append(sep).append(dataMirror.toString()).append(" data");

  1233                 }

  1234                 for (int i = 2; i < e.getParameters().size(); i++) {

  1235                     if (isWebSocket) {

  1236                         error("@OnReceive(method=\"WebSocket\") can only have two arguments", e);

  1237                         ok = false;

  1238                     }

  1240                     VariableElement ve = e.getParameters().get(i);

  1241                     body.append(sep).append(ve.asType().toString()).append(" ").append(ve.getSimpleName());

  1242                     final String tp = ve.asType().toString();

  1243                     String btn = findBoxedType(tp);

  1244                     if (btn == null) {

  1245                         btn = tp;

  1246                     }

  1247                     args.add("(" + btn + ")params[" + (i - 2) + "]");

  1248                     params.add(ve.getSimpleName().toString());

  1249                     sep = ", ";

  1250                 }

  1251             }

  1252             body.append(") {\n");

  1253             boolean webSocket = onR.method().equals("WebSocket");

  1254             if (webSocket) {

  1255                 if (generateWSReceiveBody(index++, body, inType, onR, e, clazz, className, expectsList != 0, modelClass, n, args, params, urlBefore, jsonpVarName, urlAfter, dataMirror, headers)) {

  1256                     return false;

  1257                 }

  1258                 body.append("  }\n");

  1259                 body.append("  private Object ws_" + e.getSimpleName() + ";\n");

  1260             } else {

  1261                 if (generateJSONReceiveBody(index++, body, inType, onR, e, clazz, className, expectsList != 0, modelClass, n, args, params, urlBefore, jsonpVarName, urlAfter, dataMirror, headers)) {

  1262                     ok = false;

  1263                 }

  1264                 body.append("  }\n");

  1265             }

  1266         }

  1267         inType.append("    }\n");

  1268         inType.append("    throw new UnsupportedOperationException(\"index: \" + index + \" type: \" + type);\n");

  1269         inType.append("  }\n");

  1270         return ok;

  1271     }

  1273     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) {

  1274         boolean error = false;

  1275         body.append(

  1276             "    case " + index + ": {\n" +

  1277             "      if (type == 2) { /* on error */\n" +

  1278             "        Exception ex = (Exception)data;\n"

  1279             );

  1280         if (onR.onError().isEmpty()) {

  1281             body.append(

  1282                 "        ex.printStackTrace();\n"

  1283                 );

  1284         } else {

  1285             error = !findOnError(e, ((TypeElement)clazz), onR.onError(), className);

  1286             body.append("        ").append(clazz.getSimpleName()).append(".").append(onR.onError()).append("(");

  1287             body.append("model, ex);\n");

  1288         }

  1289         body.append(

  1290             "        return;\n" +

  1291             "      } else if (type == 1) {\n" +

  1292             "        Object[] ev = (Object[])data;\n"

  1293             );

  1294         if (expectsList) {

  1295             body.append(

  1296                 "        " + modelClass + "[] arr = new " + modelClass + "[ev.length];\n"

  1297                 );

  1298         } else {

  1299             body.append(

  1300                 "        " + modelClass + "[] arr = { null };\n"

  1301                 );

  1302         }

  1303         body.append(

  1304             "        TYPE.copyJSON(model.proto.getContext(), ev, " + modelClass + ".class, arr);\n"

  1305         );

  1306         {

  1307             body.append("        ").append(clazz.getSimpleName()).append(".").append(n).append("(");

  1308             String sep = "";

  1309             for (String arg : args) {

  1310                 body.append(sep);

  1311                 body.append(arg);

  1312                 sep = ", ";

  1313             }

  1314             body.append(");\n");

  1315         }

  1316         body.append(

  1317             "        return;\n" +

  1318             "      }\n" +

  1319             "    }\n"

  1320             );

  1321         method.append("    proto.loadJSONWithHeaders(" + index + ",\n        ");

  1322         method.append(headers.length() == 0 ? "null" : headers).append(",\n        ");

  1323         method.append(urlBefore).append(", ");

  1324         if (jsonpVarName != null) {

  1325             method.append(urlAfter);

  1326         } else {

  1327             method.append("null");

  1328         }

  1329         if (!"GET".equals(onR.method()) || dataMirror != null) {

  1330             method.append(", \"").append(onR.method()).append('"');

  1331             if (dataMirror != null) {

  1332                 method.append(", data");

  1333             } else {

  1334                 method.append(", null");

  1335             }

  1336         } else {

  1337             method.append(", null, null");

  1338         }

  1339         for (String a : params) {

  1340             method.append(", ").append(a);

  1341         }

  1342         method.append(");\n");

  1343         return error;

  1344     }

  1346     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) {

  1347         body.append(

  1348             "    case " + index + ": {\n" +

  1349             "      if (type == 0) { /* on open */\n" +

  1350             "        ").append(inPckName(clazz)).append(".").append(n).append("(");

  1351         {

  1352             String sep = "";

  1353             for (String arg : args) {

  1354                 body.append(sep);

  1355                 if (arg.startsWith("arr") || arg.startsWith("java.util.Array")) {

  1356                     body.append("null");

  1357                 } else {

  1358                     body.append(arg);

  1359                 }

  1360                 sep = ", ";

  1361             }

  1362         }

  1363         body.append(");\n");

  1364         body.append(

  1365             "        return;\n" +

  1366             "      } else if (type == 2) { /* on error */\n" +

  1367             "        Exception value = (Exception)data;\n"

  1368             );

  1369         if (onR.onError().isEmpty()) {

  1370             body.append(

  1371                 "        value.printStackTrace();\n"

  1372                 );

  1373         } else {

  1374             if (!findOnError(e, ((TypeElement)clazz), onR.onError(), className)) {

  1375                 return true;

  1376             }

  1377             body.append("        ").append(inPckName(clazz)).append(".").append(onR.onError()).append("(");

  1378             body.append("model, value);\n");

  1379         }

  1380         body.append(

  1381             "        return;\n" +

  1382             "      } else if (type == 1) {\n" +

  1383             "        Object[] ev = (Object[])data;\n"

  1384         );

  1385         if (expectsList) {

  1386             body.append(

  1387                 "        " + modelClass + "[] arr = new " + modelClass + "[ev.length];\n"

  1388                 );

  1389         } else {

  1390             body.append(

  1391                 "        " + modelClass + "[] arr = { null };\n"

  1392                 );

  1393         }

  1394         body.append(

  1395             "        TYPE.copyJSON(model.proto.getContext(), ev, " + modelClass + ".class, arr);\n"

  1396         );

  1397         {

  1398             body.append("        ").append(inPckName(clazz)).append(".").append(n).append("(");

  1399             String sep = "";

  1400             for (String arg : args) {

  1401                 body.append(sep);

  1402                 body.append(arg);

  1403                 sep = ", ";

  1404             }

  1405             body.append(");\n");

  1406         }

  1407         body.append(

  1408             "        return;\n" +

  1409             "      }"

  1410         );

  1411         if (!onR.onError().isEmpty()) {

  1412             body.append(" else if (type == 3) { /* on close */\n");

  1413             body.append("        ").append(inPckName(clazz)).append(".").append(onR.onError()).append("(");

  1414             body.append("model, null);\n");

  1415             body.append(

  1416                 "        return;" +

  1417                 "      }"

  1418             );

  1419         }

  1420         body.append("\n");

  1421         body.append("    }\n");

  1422         method.append("    if (this.ws_").append(e.getSimpleName()).append(" == null) {\n");

  1423         method.append("      this.ws_").append(e.getSimpleName());

  1424         method.append("= proto.wsOpen(" + index + ", ");

  1425         method.append(urlBefore).append(", data);\n");

  1426         method.append("    } else {\n");

  1427         method.append("      proto.wsSend(this.ws_").append(e.getSimpleName()).append(", ").append(urlBefore).append(", data");

  1428         for (String a : params) {

  1429             method.append(", ").append(a);

  1430         }

  1431         method.append(");\n");

  1432         method.append("    }\n");

  1433         return false;

  1434     }

  1436     private CharSequence wrapParams(

  1437         ExecutableElement ee, String id, String className, String classRef, String evName, String dataName

  1438     ) {

  1439         TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

  1440         StringBuilder params = new StringBuilder();

  1441         boolean first = true;

  1442         for (VariableElement ve : ee.getParameters()) {

  1443             if (!first) {

  1444                 params.append(", ");

  1445             }

  1446             first = false;

  1447             String toCall = null;

  1448             String toFinish = null;

  1449             boolean addNull = true;

  1450             if (ve.asType() == stringType) {

  1451                 if (ve.getSimpleName().contentEquals("id")) {

  1452                     params.append('"').append(id).append('"');

  1453                     continue;

  1454                 }

  1455                 toCall = classRef + ".proto.toString(";

  1456             }

  1457             if (ve.asType().getKind() == TypeKind.DOUBLE) {

  1458                 toCall = classRef + ".proto.toNumber(";

  1459                 toFinish = ".doubleValue()";

  1460             }

  1461             if (ve.asType().getKind() == TypeKind.FLOAT) {

  1462                 toCall = classRef + ".proto.toNumber(";

  1463                 toFinish = ".floatValue()";

  1464             }

  1465             if (ve.asType().getKind() == TypeKind.INT) {

  1466                 toCall = classRef + ".proto.toNumber(";

  1467                 toFinish = ".intValue()";

  1468             }

  1469             if (ve.asType().getKind() == TypeKind.BYTE) {

  1470                 toCall = classRef + ".proto.toNumber(";

  1471                 toFinish = ".byteValue()";

  1472             }

  1473             if (ve.asType().getKind() == TypeKind.SHORT) {

  1474                 toCall = classRef + ".proto.toNumber(";

  1475                 toFinish = ".shortValue()";

  1476             }

  1477             if (ve.asType().getKind() == TypeKind.LONG) {

  1478                 toCall = classRef + ".proto.toNumber(";

  1479                 toFinish = ".longValue()";

  1480             }

  1481             if (ve.asType().getKind() == TypeKind.BOOLEAN) {

  1482                 toCall = "\"true\".equals(" + classRef + ".proto.toString(";

  1483                 toFinish = ")";

  1484             }

  1485             if (ve.asType().getKind() == TypeKind.CHAR) {

  1486                 toCall = "(char)" + classRef + ".proto.toNumber(";

  1487                 toFinish = ".intValue()";

  1488             }

  1489             if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {

  1490                 toCall = classRef + ".proto.toModel(" + ve.asType() + ".class, ";

  1491                 addNull = false;

  1492             }

  1494             if (toCall != null) {

  1495                 params.append(toCall);

  1496                 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {

  1497                     params.append(dataName);

  1498                     if (addNull) {

  1499                         params.append(", null");

  1500                     }

  1501                 } else {

  1502                     if (evName == null) {

  1503                         final StringBuilder sb = new StringBuilder();

  1504                         sb.append("Unexpected string parameter name.");

  1505                         if (dataName != null) {

  1506                             sb.append(" Try \"").append(dataName).append("\"");

  1507                         }

  1508                         error(sb.toString(), ee);

  1509                     }

  1510                     params.append(evName);

  1511                     params.append(", \"");

  1512                     params.append(ve.getSimpleName().toString());

  1513                     params.append("\"");

  1514                 }

  1515                 params.append(")");

  1516                 if (toFinish != null) {

  1517                     params.append(toFinish);

  1518                 }

  1519                 continue;

  1520             }

  1521             String rn = fqn(ve.asType(), ee);

  1522             int last = rn.lastIndexOf('.');

  1523             if (last >= 0) {

  1524                 rn = rn.substring(last + 1);

  1525             }

  1526             if (rn.equals(className)) {

  1527                 params.append(classRef);

  1528                 continue;

  1529             }

  1530             StringBuilder err = new StringBuilder();

  1531             err.append("Argument ").

  1532                 append(ve.getSimpleName()).

  1533                 append(" is not valid. The annotated method can only accept ").

  1534                 append(className).

  1535                 append(" argument");

  1536             if (dataName != null) {

  1537                 err.append(" or argument named '").append(dataName).append("'");

  1538             }

  1539             err.append(".");

  1540             error(err.toString(), ee);

  1541         }

  1542         return params;

  1543     }

  1546     private CharSequence wrapPropName(

  1547         ExecutableElement ee, String className, String propName, String propValue

  1548     ) {

  1549         TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

  1550         StringBuilder params = new StringBuilder();

  1551         boolean first = true;

  1552         for (VariableElement ve : ee.getParameters()) {

  1553             if (!first) {

  1554                 params.append(", ");

  1555             }

  1556             first = false;

  1557             if (ve.asType() == stringType) {

  1558                 if (propName != null && ve.getSimpleName().contentEquals(propName)) {

  1559                     params.append('"').append(propValue).append('"');

  1560                 } else {

  1561                     error("Unexpected string parameter name. Try \"" + propName + "\".", ee);

  1562                 }

  1563                 continue;

  1564             }

  1565             String rn = fqn(ve.asType(), ee);

  1566             int last = rn.lastIndexOf('.');

  1567             if (last >= 0) {

  1568                 rn = rn.substring(last + 1);

  1569             }

  1570             if (rn.equals(className)) {

  1571                 params.append("model");

  1572                 continue;

  1573             }

  1574             error(

  1575                 "@OnPrprtChange method can only accept String or " + className + " arguments",

  1576                 ee);

  1577         }

  1578         return params;

  1579     }

  1581     private boolean isModel(TypeMirror tm) {

  1582         if (tm.getKind() == TypeKind.ERROR) {

  1583             return true;

  1584         }

  1585         final Element e = processingEnv.getTypeUtils().asElement(tm);

  1586         if (e == null) {

  1587             return false;

  1588         }

  1589         for (Element ch : e.getEnclosedElements()) {

  1590             if (ch.getKind() == ElementKind.METHOD) {

  1591                 ExecutableElement ee = (ExecutableElement)ch;

  1592                 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {

  1593                     return true;

  1594                 }

  1595             }

  1596         }

  1597         return models.values().contains(e.getSimpleName().toString());

  1598     }

  1600     private void writeToString(Prprt[] props, Writer w) throws IOException {

  1601         w.write("  public String toString() {\n");

  1602         w.write("    StringBuilder sb = new StringBuilder();\n");

  1603         w.write("    sb.append('{');\n");

  1604         String sep = "";

  1605         for (Prprt p : props) {

  1606             w.write(sep);

  1607             w.append("    sb.append('\"').append(\"" + p.name() + "\")");

  1608                 w.append(".append('\"').append(\":\");\n");

  1609             w.append("    sb.append(TYPE.toJSON(prop_");

  1610             w.append(p.name()).append("));\n");

  1611             sep =    "    sb.append(',');\n";

  1612         }

  1613         w.write("    sb.append('}');\n");

  1614         w.write("    return sb.toString();\n");

  1615         w.write("  }\n");

  1616     }

  1617     private void writeClone(String className, Prprt[] props, Writer w) throws IOException {

  1618         w.write("  public " + className + " clone() {\n");

  1619         w.write("    return clone(proto.getContext());\n");

  1620         w.write("  }\n");

  1621         w.write("  private " + className + " clone(net.java.html.BrwsrCtx ctx) {\n");

  1622         w.write("    " + className + " ret = new " + className + "(ctx);\n");

  1623         for (Prprt p : props) {

  1624             String tn = typeName(p);

  1625             String[] gs = toGetSet(p.name(), tn, p.array());

  1626             if (!p.array()) {

  1627                 boolean isModel[] = { false };

  1628                 boolean isEnum[] = { false };

  1629                 boolean isPrimitive[] = { false };

  1630                 checkType(p, isModel, isEnum, isPrimitive);

  1631                 if (!isModel[0]) {

  1632                     w.write("    ret.prop_" + p.name() + " = " + gs[0] + "();\n");

  1633                     continue;

  1634                 }

  1635                 w.write("    ret.prop_" + p.name() + " =  " + gs[0] + "()  == null ? null : prop_" + p.name() + ".clone();\n");

  1636             } else {

  1637                 w.write("    proto.cloneList(ret." + gs[0] + "(), ctx, prop_" + p.name() + ");\n");

  1638             }

  1639         }

  1641         w.write("    return ret;\n");

  1642         w.write("  }\n");

  1643     }

  1645     private String inPckName(Element e) {

  1646         StringBuilder sb = new StringBuilder();

  1647         while (e.getKind() != ElementKind.PACKAGE) {

  1648             if (sb.length() == 0) {

  1649                 sb.append(e.getSimpleName());

  1650             } else {

  1651                 sb.insert(0, '.');

  1652                 sb.insert(0, e.getSimpleName());

  1653             }

  1654             e = e.getEnclosingElement();

  1655         }

  1656         return sb.toString();

  1657     }

  1659     private String fqn(TypeMirror pt, Element relative) {

  1660         if (pt.getKind() == TypeKind.ERROR) {

  1661             final Elements eu = processingEnv.getElementUtils();

  1662             PackageElement pckg = eu.getPackageOf(relative);

  1663             return pckg.getQualifiedName() + "." + pt.toString();

  1664         }

  1665         return pt.toString();

  1666     }

  1668     private String checkType(Prprt p, boolean[] isModel, boolean[] isEnum, boolean[] isPrimitive) {

  1669         TypeMirror tm;

  1670         try {

  1671             String ret = p.typeName(processingEnv);

  1672             TypeElement e = processingEnv.getElementUtils().getTypeElement(ret);

  1673             if (e == null) {

  1674                 isModel[0] = true;

  1675                 isEnum[0] = false;

  1676                 isPrimitive[0] = false;

  1677                 return ret;

  1678             }

  1679             tm = e.asType();

  1680         } catch (MirroredTypeException ex) {

  1681             tm = ex.getTypeMirror();

  1682         }

  1683         tm = processingEnv.getTypeUtils().erasure(tm);

  1684         if (isPrimitive[0] = tm.getKind().isPrimitive()) {

  1685             isEnum[0] = false;

  1686             isModel[0] = false;

  1687             return tm.toString();

  1688         }

  1689         final Element e = processingEnv.getTypeUtils().asElement(tm);

  1690         if (e.getKind() == ElementKind.CLASS && tm.getKind() == TypeKind.ERROR) {

  1691             isModel[0] = true;

  1692             isEnum[0] = false;

  1693             return e.getSimpleName().toString();

  1694         }

  1696         final Model m = e == null ? null : e.getAnnotation(Model.class);

  1697         String ret;

  1698         if (m != null) {

  1699             ret = findPkgName(e) + '.' + m.className();

  1700             isModel[0] = true;

  1701             models.put(e, m.className());

  1702         } else if (findModelForMthd(e)) {

  1703             ret = ((TypeElement)e).getQualifiedName().toString();

  1704             isModel[0] = true;

  1705         } else {

  1706             ret = tm.toString();

  1707         }

  1708         TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();

  1709         enm = processingEnv.getTypeUtils().erasure(enm);

  1710         isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);

  1711         return ret;

  1712     }

  1714     private static boolean findModelForMthd(Element clazz) {

  1715         if (clazz == null) {

  1716             return false;

  1717         }

  1718         for (Element e : clazz.getEnclosedElements()) {

  1719             if (e.getKind() == ElementKind.METHOD) {

  1720                 ExecutableElement ee = (ExecutableElement)e;

  1721                 if (

  1722                     ee.getSimpleName().contentEquals("modelFor") &&

  1723                     ee.getParameters().isEmpty()

  1724                 ) {

  1725                     return true;

  1726                 }

  1727             }

  1728         }

  1729         return false;

  1730     }

  1732     private void findParamNames(

  1733         Set<String> params, Element e, String url, String jsonParam, StringBuilder... both

  1734     ) {

  1735         int wasJSON = 0;

  1737         for (int pos = 0; ;) {

  1738             int next = url.indexOf('{', pos);

  1739             if (next == -1) {

  1740                 both[wasJSON].append('"')

  1741                     .append(url.substring(pos).replace("\"", "\\\""))

  1742                     .append('"');

  1743                 return;

  1744             }

  1745             int close = url.indexOf('}', next);

  1746             if (close == -1) {

  1747                 error("Unbalanced '{' and '}' in " + url, e);

  1748                 return;

  1749             }

  1750             final String paramName = url.substring(next + 1, close);

  1751             params.add(paramName);

  1752             if (paramName.equals(jsonParam) && !jsonParam.isEmpty()) {

  1753                 both[wasJSON].append('"')

  1754                     .append(url.substring(pos, next).replace("\"", "\\\""))

  1755                     .append('"');

  1756                 wasJSON = 1;

  1757             } else {

  1758                 both[wasJSON].append('"')

  1759                     .append(url.substring(pos, next).replace("\"", "\\\""))

  1760                     .append("\" + ").append(paramName).append(" + ");

  1761             }

  1762             pos = close + 1;

  1763         }

  1764     }

  1766     private static Prprt findPrprt(Prprt[] properties, String propName) {

  1767         for (Prprt p : properties) {

  1768             if (propName.equals(p.name())) {

  1769                 return p;

  1770             }

  1771         }

  1772         return null;

  1773     }

  1775     private boolean isPrimitive(String type) {

  1776         return

  1777             "int".equals(type) ||

  1778             "double".equals(type) ||

  1779             "long".equals(type) ||

  1780             "short".equals(type) ||

  1781             "byte".equals(type) ||

  1782             "char".equals(type) ||

  1783             "boolean".equals(type) ||

  1784             "float".equals(type);

  1785     }

  1787     private static Collection<String> findDerivedFrom(Map<String, Collection<String[]>> propsDeps, String derivedProp) {

  1788         Set<String> names = new HashSet<String>();

  1789         for (Map.Entry<String, Collection<String[]>> e : propsDeps.entrySet()) {

  1790             for (String[] pair : e.getValue()) {

  1791                 if (pair[0].equals(derivedProp)) {

  1792                     names.add(e.getKey());

  1793                     break;

  1794                 }

  1795             }

  1796         }

  1797         return names;

  1798     }

  1800     private Prprt[] createProps(Element e, Property[] arr) {

  1801         Prprt[] ret = Prprt.wrap(processingEnv, e, arr);

  1802         Prprt[] prev = verify.put(e, ret);

  1803         if (prev != null) {

  1804             error("Two sets of properties for ", e);

  1805         }

  1806         return ret;

  1807     }

  1809     private static String strip(String s) {

  1810         int indx = s.indexOf("__");

  1811         if (indx >= 0) {

  1812             return s.substring(0, indx);

  1813         } else {

  1814             return s;

  1815         }

  1816     }

  1818     private String findDataSpecified(ExecutableElement e, OnReceive onR) {

  1819         try {

  1820             return onR.data().getName();

  1821         } catch (MirroredTypeException ex) {

  1822             final TypeMirror tm = ex.getTypeMirror();

  1823             String name;

  1824             final Element te = processingEnv.getTypeUtils().asElement(tm);

  1825             if (te.getKind() == ElementKind.CLASS && tm.getKind() == TypeKind.ERROR) {

  1826                 name = te.getSimpleName().toString();

  1827             } else {

  1828                 name = tm.toString();

  1829             }

  1830             return "java.lang.Object".equals(name) ? null : name;

  1831         } catch (Exception ex) {

  1832             // fallback

  1833         }

  1835         AnnotationMirror found = null;

  1836         for (AnnotationMirror am : e.getAnnotationMirrors()) {

  1837             if (am.getAnnotationType().toString().equals(OnReceive.class.getName())) {

  1838                 found = am;

  1839             }

  1840         }

  1841         if (found == null) {

  1842             return null;

  1843         }

  1845         for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : found.getElementValues().entrySet()) {

  1846             ExecutableElement ee = entry.getKey();

  1847             AnnotationValue av = entry.getValue();

  1848             if (ee.getSimpleName().contentEquals("data")) {

  1849                 List<? extends Object> values = getAnnoValues(processingEnv, e, found);

  1850                 for (Object v : values) {

  1851                     String sv = v.toString();

  1852                     if (sv.startsWith("data = ") && sv.endsWith(".class")) {

  1853                         return sv.substring(7, sv.length() - 6);

  1854                     }

  1855                 }

  1856                 return "error";

  1857             }

  1858         }

  1859         return null;

  1860     }

  1862     static List<? extends Object> getAnnoValues(ProcessingEnvironment pe, Element e, AnnotationMirror am) {

  1863         try {

  1864             Class<?> trees = Class.forName("com.sun.tools.javac.api.JavacTrees");

  1865             Method m = trees.getMethod("instance", ProcessingEnvironment.class);

  1866             Object instance = m.invoke(null, pe);

  1867             m = instance.getClass().getMethod("getPath", Element.class, AnnotationMirror.class);

  1868             Object path = m.invoke(instance, e, am);

  1869             m = path.getClass().getMethod("getLeaf");

  1870             Object leaf = m.invoke(path);

  1871             m = leaf.getClass().getMethod("getArguments");

  1872             return (List) m.invoke(leaf);

  1873         } catch (Exception ex) {

  1874             return Collections.emptyList();

  1875         }

  1876     }

  1878     private static String findTargetId(Element e) {

  1879         for (AnnotationMirror m : e.getAnnotationMirrors()) {

  1880             if (m.getAnnotationType().toString().equals(Model.class.getName())) {

  1881                 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entrySet : m.getElementValues().entrySet()) {

  1882                     ExecutableElement key = entrySet.getKey();

  1883                     AnnotationValue value = entrySet.getValue();

  1884                     if ("targetId()".equals(key.toString())) {

  1885                         return value.toString();

  1886                     }

  1887                 }

  1888             }

  1889         }

  1890         return null;

  1891     }

  1893     private static class Prprt {

  1894         private final Element e;

  1895         private final AnnotationMirror tm;

  1896         private final Property p;

  1898         public Prprt(Element e, AnnotationMirror tm, Property p) {

  1899             this.e = e;

  1900             this.tm = tm;

  1901             this.p = p;

  1902         }

  1904         String name() {

  1905             return p.name();

  1906         }

  1908         boolean array() {

  1909             return p.array();

  1910         }

  1912         String typeName(ProcessingEnvironment env) {

  1913             RuntimeException ex;

  1914             try {

  1915                 return p.type().getName();

  1916             } catch (IncompleteAnnotationException e) {

  1917                 ex = e;

  1918             } catch (AnnotationTypeMismatchException e) {

  1919                 ex = e;

  1920             }

  1921             for (Object v : getAnnoValues(env, e, tm)) {

  1922                 String s = v.toString().replace(" ", "");

  1923                 if (s.startsWith("type=") && s.endsWith(".class")) {

  1924                     return s.substring(5, s.length() - 6);

  1925                 }

  1926             }

  1927             throw ex;

  1928         }

  1931         static Prprt[] wrap(ProcessingEnvironment pe, Element e, Property[] arr) {

  1932             if (arr.length == 0) {

  1933                 return new Prprt[0];

  1934             }

  1936             if (e.getKind() != ElementKind.CLASS) {

  1937                 throw new IllegalStateException("" + e.getKind());

  1938             }

  1939             TypeElement te = (TypeElement)e;

  1940             List<? extends AnnotationValue> val = null;

  1941             for (AnnotationMirror an : te.getAnnotationMirrors()) {

  1942                 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : an.getElementValues().entrySet()) {

  1943                     if (entry.getKey().getSimpleName().contentEquals("properties")) {

  1944                         val = (List)entry.getValue().getValue();

  1945                         break;

  1946                     }

  1947                 }

  1948             }

  1949             if (val == null || val.size() != arr.length) {

  1950                 pe.getMessager().printMessage(Diagnostic.Kind.ERROR, "" + val, e);

  1951                 return new Prprt[0];

  1952             }

  1953             Prprt[] ret = new Prprt[arr.length];

  1954             BIG: for (int i = 0; i < ret.length; i++) {

  1955                 AnnotationMirror am = (AnnotationMirror)val.get(i).getValue();

  1956                 ret[i] = new Prprt(e, am, arr[i]);

  1958             }

  1959             return ret;

  1960         }

  1961     } // end of Prprt

  1963     private static final class GetSet {

  1964         final String name;

  1965         final String getter;

  1966         final String setter;

  1967         final String type;

  1968         final boolean readOnly;

  1969         GetSet(String name, String getter, String setter, String type, boolean readOnly) {

  1970             this.name = name;

  1971             this.getter = getter;

  1972             this.setter = setter;

  1973             this.type = type;

  1974             this.readOnly = readOnly;

  1975         }

  1976     }

  1978     @Override

  1979     public Iterable<? extends Completion> getCompletions(Element element, AnnotationMirror annotation, ExecutableElement member, String userText) {

  1980         final Level l = Level.FINE;

  1981         LOG.log(l, " element: {0}", element);

  1982         LOG.log(l, " annotation: {0}", annotation);

  1983         LOG.log(l, " member: {0}", member);

  1984         LOG.log(l, " userText: {0}", userText);

  1985         LOG.log(l, "str: {0}", annotation.getAnnotationType().toString());

  1986         if (annotation.getAnnotationType().toString().equals(OnReceive.class.getName())) {

  1987             if (member.getSimpleName().contentEquals("method")) {

  1988                 return Arrays.asList(

  1989                     methodOf("GET"),

  1990                     methodOf("POST"),

  1991                     methodOf("PUT"),

  1992                     methodOf("DELETE"),

  1993                     methodOf("HEAD"),

  1994                     methodOf("WebSocket")

  1995                 );

  1996             }

  1997         }

  1999         return super.getCompletions(element, annotation, member, userText);

  2000     }

  2002     private static final Completion methodOf(String method) {

  2003         ResourceBundle rb = ResourceBundle.getBundle("org.netbeans.html.json.impl.Bundle");

  2004         return Completions.of('"' + method + '"', rb.getString("MSG_Completion_" + method));

  2005     }

  2007     private boolean findOnError(ExecutableElement errElem, TypeElement te, String name, String className) {

  2008         String err = null;

  2009         METHODS:

  2010         for (Element e : te.getEnclosedElements()) {

  2011             if (e.getKind() != ElementKind.METHOD) {

  2012                 continue;

  2013             }

  2014             if (!e.getSimpleName().contentEquals(name)) {

  2015                 continue;

  2016             }

  2017             if (!e.getModifiers().contains(Modifier.STATIC)) {

  2018                 errElem = (ExecutableElement) e;

  2019                 err = "Would have to be static";

  2020                 continue;

  2021             }

  2022             ExecutableElement ee = (ExecutableElement) e;

  2023             TypeMirror excType = processingEnv.getElementUtils().getTypeElement(Exception.class.getName()).asType();

  2024             final List<? extends VariableElement> params = ee.getParameters();

  2025             boolean error = false;

  2026             if (params.size() != 2) {

  2027                 error = true;

  2028             } else {

  2029                 String firstType = params.get(0).asType().toString();

  2030                 int lastDot = firstType.lastIndexOf('.');

  2031                 if (lastDot != -1) {

  2032                     firstType = firstType.substring(lastDot + 1);

  2033                 }

  2034                 if (!firstType.equals(className)) {

  2035                     error = true;

  2036                 }

  2037                 if (!processingEnv.getTypeUtils().isAssignable(excType, params.get(1).asType())) {

  2038                     error = true;

  2039                 }

  2040             }

  2041             if (error) {

  2042                 errElem = (ExecutableElement) e;

  2043                 err = "Error method first argument needs to be " + className + " and second Exception";

  2044                 continue;

  2045             }

  2046             return true;

  2047         }

  2048         if (err == null) {

  2049             err = "Cannot find " + name + "(" + className + ", Exception) method in this class";

  2050         }

  2051         error(err, errElem);

  2052         return false;

  2053     }

  2055     private ExecutableElement findWrite(ExecutableElement computedPropElem, TypeElement te, String name, String className) {

  2056         String err = null;

  2057         METHODS:

  2058         for (Element e : te.getEnclosedElements()) {

  2059             if (e.getKind() != ElementKind.METHOD) {

  2060                 continue;

  2061             }

  2062             if (!e.getSimpleName().contentEquals(name)) {

  2063                 continue;

  2064             }

  2065             if (e.equals(computedPropElem)) {

  2066                 continue;

  2067             }

  2068             if (!e.getModifiers().contains(Modifier.STATIC)) {

  2069                 computedPropElem = (ExecutableElement) e;

  2070                 err = "Would have to be static";

  2071                 continue;

  2072             }

  2073             ExecutableElement ee = (ExecutableElement) e;

  2074             if (ee.getReturnType().getKind() != TypeKind.VOID) {

  2075                 computedPropElem = (ExecutableElement) e;

  2076                 err = "Write method has to return void";

  2077                 continue;

  2078             }

  2079             TypeMirror retType = computedPropElem.getReturnType();

  2080             final List<? extends VariableElement> params = ee.getParameters();

  2081             boolean error = false;

  2082             if (params.size() != 2) {

  2083                 error = true;

  2084             } else {

  2085                 String firstType = params.get(0).asType().toString();

  2086                 int lastDot = firstType.lastIndexOf('.');

  2087                 if (lastDot != -1) {

  2088                     firstType = firstType.substring(lastDot + 1);

  2089                 }

  2090                 if (!firstType.equals(className)) {

  2091                     error = true;

  2092                 }

  2093                 if (!processingEnv.getTypeUtils().isAssignable(retType, params.get(1).asType())) {

  2094                     error = true;

  2095                 }

  2096             }

  2097             if (error) {

  2098                 computedPropElem = (ExecutableElement) e;

  2099                 err = "Write method first argument needs to be " + className + " and second " + retType + " or Object";

  2100                 continue;

  2101             }

  2102             return ee;

  2103         }

  2104         if (err == null) {

  2105             err = "Cannot find " + name + "(" + className + ", value) method in this class";

  2106         }

  2107         error(err, computedPropElem);

  2108         return null;

  2109     }

  2111 }

author	Jaroslav Tulach <jtulach@netbeans.org>
	Thu, 29 Oct 2015 20:10:06 +0100
changeset 1014	c89b9f91ed18
parent 1011	267ca1bfeb6f
child 1017	10427ce1c0ee
permissions	-rw-r--r--