2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.bck2brwsr.htmlpage;
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.io.OutputStreamWriter;
23 import java.io.StringWriter;
24 import java.io.Writer;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.Collections;
28 import java.util.HashMap;
29 import java.util.LinkedHashSet;
30 import java.util.List;
33 import java.util.WeakHashMap;
34 import javax.annotation.processing.AbstractProcessor;
35 import javax.annotation.processing.Completion;
36 import javax.annotation.processing.Completions;
37 import javax.annotation.processing.Messager;
38 import javax.annotation.processing.Processor;
39 import javax.annotation.processing.RoundEnvironment;
40 import javax.annotation.processing.SupportedAnnotationTypes;
41 import javax.lang.model.element.AnnotationMirror;
42 import javax.lang.model.element.Element;
43 import javax.lang.model.element.ElementKind;
44 import javax.lang.model.element.ExecutableElement;
45 import javax.lang.model.element.Modifier;
46 import javax.lang.model.element.PackageElement;
47 import javax.lang.model.element.TypeElement;
48 import javax.lang.model.element.VariableElement;
49 import javax.lang.model.type.ArrayType;
50 import javax.lang.model.type.DeclaredType;
51 import javax.lang.model.type.MirroredTypeException;
52 import javax.lang.model.type.TypeKind;
53 import javax.lang.model.type.TypeMirror;
54 import javax.lang.model.util.Elements;
55 import javax.lang.model.util.Types;
56 import javax.tools.Diagnostic;
57 import javax.tools.FileObject;
58 import javax.tools.StandardLocation;
59 import org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty;
60 import org.apidesign.bck2brwsr.htmlpage.api.Model;
61 import org.apidesign.bck2brwsr.htmlpage.api.On;
62 import org.apidesign.bck2brwsr.htmlpage.api.OnFunction;
63 import org.apidesign.bck2brwsr.htmlpage.api.OnReceive;
64 import org.apidesign.bck2brwsr.htmlpage.api.Page;
65 import org.apidesign.bck2brwsr.htmlpage.api.Property;
66 import org.openide.util.lookup.ServiceProvider;
68 /** Annotation processor to process an XHTML page and generate appropriate
71 * @author Jaroslav Tulach <jtulach@netbeans.org>
73 @ServiceProvider(service=Processor.class)
74 @SupportedAnnotationTypes({
75 "org.apidesign.bck2brwsr.htmlpage.api.Model",
76 "org.apidesign.bck2brwsr.htmlpage.api.Page",
77 "org.apidesign.bck2brwsr.htmlpage.api.OnFunction",
78 "org.apidesign.bck2brwsr.htmlpage.api.OnReceive",
79 "org.apidesign.bck2brwsr.htmlpage.api.On"
81 public final class PageProcessor extends AbstractProcessor {
82 private final Map<Element,String> models = new WeakHashMap<>();
84 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
86 for (Element e : roundEnv.getElementsAnnotatedWith(Model.class)) {
87 if (!processModel(e)) {
91 for (Element e : roundEnv.getElementsAnnotatedWith(Page.class)) {
92 if (!processPage(e)) {
96 if (roundEnv.processingOver()) {
102 private InputStream openStream(String pkg, String name) throws IOException {
104 FileObject fo = processingEnv.getFiler().getResource(
105 StandardLocation.SOURCE_PATH, pkg, name);
106 return fo.openInputStream();
107 } catch (IOException ex) {
108 return processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name).openInputStream();
112 private Messager err() {
113 return processingEnv.getMessager();
116 private boolean processModel(Element e) {
118 Model m = e.getAnnotation(Model.class);
122 String pkg = findPkgName(e);
124 String className = m.className();
125 models.put(e, className);
127 StringWriter body = new StringWriter();
128 List<String> propsGetSet = new ArrayList<>();
129 List<String> functions = new ArrayList<>();
130 Map<String, Collection<String>> propsDeps = new HashMap<>();
131 if (!generateComputedProperties(body, m.properties(), e.getEnclosedElements(), propsGetSet, propsDeps)) {
134 if (!generateProperties(e, body, m.properties(), propsGetSet, propsDeps)) {
137 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
140 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
141 w = new OutputStreamWriter(java.openOutputStream());
143 w.append("package " + pkg + ";\n");
144 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
145 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
146 w.append("import org.apidesign.bck2brwsr.core.JavaScriptOnly;\n");
147 w.append("final class ").append(className).append(" implements Cloneable {\n");
148 w.append(" private boolean locked;\n");
149 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
150 w.append(body.toString());
151 w.append(" private static Class<" + inPckName(e) + "> modelFor() { return null; }\n");
152 w.append(" public ").append(className).append("() {\n");
153 w.append(" intKnckt();\n");
155 w.append(" private void intKnckt() {\n");
156 w.append(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(this, ");
157 writeStringArray(propsGetSet, w);
159 writeStringArray(functions, w);
162 w.append(" ").append(className).append("(Object json) {\n");
164 for (int i = 0; i < propsGetSet.size(); i += 4) {
165 Property p = findProperty(m.properties(), propsGetSet.get(i));
171 w.append(" Object[] ret = new Object[" + values + "];\n");
172 w.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.extractJSON(json, new String[] {\n");
173 for (int i = 0; i < propsGetSet.size(); i += 4) {
174 Property p = findProperty(m.properties(), propsGetSet.get(i));
178 w.append(" \"").append(propsGetSet.get(i)).append("\",\n");
180 w.append(" }, ret);\n");
181 for (int i = 0, cnt = 0, prop = 0; i < propsGetSet.size(); i += 4) {
182 final String pn = propsGetSet.get(i);
183 Property p = findProperty(m.properties(), pn);
187 boolean[] isModel = { false };
188 boolean[] isEnum = { false };
189 String type = checkType(m.properties()[prop++], isModel, isEnum);
191 // w.append(type).append(".valueOf((String)");
193 w.append(" this.prop_").append(pn);
194 w.append(" = null;\n");
195 } else if (p.array()) {
196 w.append("if (ret[" + cnt + "] instanceof Object[]) {\n");
197 w.append(" for (Object e : ((Object[])ret[" + cnt + "])) {\n");
199 w.append(" this.prop_").append(pn).append(".add(new ");
200 w.append(type).append("(e));\n");
202 if (isPrimitive(type)) {
203 w.append(" this.prop_").append(pn).append(".add(((Number)e).");
204 w.append(type).append("Value());\n");
206 w.append(" this.prop_").append(pn).append(".add((");
207 w.append(type).append(")e);\n");
213 w.append(" this.prop_").append(pn);
214 w.append(" = (").append(type).append(')');
215 w.append("ret[" + cnt + "];\n");
219 w.append(" intKnckt();\n");
221 writeToString(m.properties(), w);
222 writeClone(className, m.properties(), w);
227 } catch (IOException ex) {
228 err().printMessage(Diagnostic.Kind.ERROR, "Can't create " + className + ".java", e);
234 private boolean processPage(Element e) {
236 Page p = e.getAnnotation(Page.class);
240 String pkg = findPkgName(e);
243 try (InputStream is = openStream(pkg, p.xhtml())) {
244 pp = ProcessPage.readPage(is);
246 } catch (IOException iOException) {
247 err().printMessage(Diagnostic.Kind.ERROR, "Can't read " + p.xhtml() + " as " + iOException.getMessage(), e);
252 String className = p.className();
253 if (className.isEmpty()) {
254 int indx = p.xhtml().indexOf('.');
255 className = p.xhtml().substring(0, indx);
258 StringWriter body = new StringWriter();
259 List<String> propsGetSet = new ArrayList<>();
260 List<String> functions = new ArrayList<>();
261 Map<String, Collection<String>> propsDeps = new HashMap<>();
262 if (!generateComputedProperties(body, p.properties(), e.getEnclosedElements(), propsGetSet, propsDeps)) {
265 if (!generateProperties(e, body, p.properties(), propsGetSet, propsDeps)) {
268 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
271 if (!generateReceive(e, body, className, e.getEnclosedElements(), functions)) {
275 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
276 w = new OutputStreamWriter(java.openOutputStream());
278 w.append("package " + pkg + ";\n");
279 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
280 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
281 w.append("final class ").append(className).append(" {\n");
282 w.append(" private boolean locked;\n");
283 if (!initializeOnClick(className, (TypeElement) e, w, pp)) {
286 if (pp != null) for (String id : pp.ids()) {
287 String tag = pp.tagNameForId(id);
288 String type = type(tag);
289 w.append(" ").append("public final ").
290 append(type).append(' ').append(cnstnt(id)).append(" = new ").
291 append(type).append("(\"").append(id).append("\");\n");
294 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
295 w.append(body.toString());
296 if (!propsGetSet.isEmpty()) {
297 w.write("public " + className + " applyBindings() {\n");
298 w.write(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(");
299 w.write(className + ".class, this, ");
300 writeStringArray(propsGetSet, w);
302 writeStringArray(functions, w);
303 w.write(");\n return this;\n}\n");
305 w.write("public void triggerEvent(Element e, OnEvent ev) {\n");
306 w.write(" org.apidesign.bck2brwsr.htmlpage.Knockout.triggerEvent(e.getId(), ev.getElementPropertyName());\n");
313 } catch (IOException ex) {
314 err().printMessage(Diagnostic.Kind.ERROR, "Can't create " + className + ".java", e);
320 private static String type(String tag) {
321 if (tag.equals("title")) {
324 if (tag.equals("button")) {
327 if (tag.equals("input")) {
330 if (tag.equals("canvas")) {
333 if (tag.equals("img")) {
339 private static String cnstnt(String id) {
340 return id.replace('.', '_').replace('-', '_');
343 private boolean initializeOnClick(
344 String className, TypeElement type, Writer w, ProcessPage pp
345 ) throws IOException {
347 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
348 { //for (Element clazz : pe.getEnclosedElements()) {
349 // if (clazz.getKind() != ElementKind.CLASS) {
352 w.append(" public ").append(className).append("() {\n");
353 StringBuilder dispatch = new StringBuilder();
355 for (Element method : type.getEnclosedElements()) {
356 On oc = method.getAnnotation(On.class);
358 for (String id : oc.id()) {
360 err().printMessage(Diagnostic.Kind.ERROR, "id = " + id + " not found in HTML page.");
364 if (pp.tagNameForId(id) == null) {
365 err().printMessage(Diagnostic.Kind.ERROR, "id = " + id + " does not exist in the HTML page. Found only " + pp.ids(), method);
369 ExecutableElement ee = (ExecutableElement)method;
370 CharSequence params = wrapParams(ee, id, className, "ev", null);
371 if (!ee.getModifiers().contains(Modifier.STATIC)) {
372 err().printMessage(Diagnostic.Kind.ERROR, "@On method has to be static", ee);
376 if (ee.getModifiers().contains(Modifier.PRIVATE)) {
377 err().printMessage(Diagnostic.Kind.ERROR, "@On method can't be private", ee);
381 w.append(" OnEvent." + oc.event()).append(".of(").append(cnstnt(id)).
382 append(").perform(new OnDispatch(" + dispatchCnt + "));\n");
385 append(" case ").append(dispatchCnt).append(": ").
386 append(type.getSimpleName().toString()).
387 append('.').append(ee.getSimpleName()).append("(").
389 append("); break;\n");
396 if (dispatchCnt > 0) {
397 w.append("class OnDispatch implements OnHandler {\n");
398 w.append(" private final int dispatch;\n");
399 w.append(" OnDispatch(int d) { dispatch = d; }\n");
400 w.append(" public void onEvent(Object ev) {\n");
401 w.append(" switch (dispatch) {\n");
414 public Iterable<? extends Completion> getCompletions(
415 Element element, AnnotationMirror annotation,
416 ExecutableElement member, String userText
418 if (!userText.startsWith("\"")) {
419 return Collections.emptyList();
422 Element cls = findClass(element);
423 Page p = cls.getAnnotation(Page.class);
424 String pkg = findPkgName(cls);
427 InputStream is = openStream(pkg, p.xhtml());
428 pp = ProcessPage.readPage(is);
430 } catch (IOException iOException) {
431 return Collections.emptyList();
434 List<Completion> cc = new ArrayList<>();
435 userText = userText.substring(1);
436 for (String id : pp.ids()) {
437 if (id.startsWith(userText)) {
438 cc.add(Completions.of("\"" + id + "\"", id));
444 private static Element findClass(Element e) {
448 Page p = e.getAnnotation(Page.class);
452 return e.getEnclosingElement();
455 private boolean generateProperties(
457 Writer w, Property[] properties,
458 Collection<String> props, Map<String,Collection<String>> deps
459 ) throws IOException {
461 for (Property p : properties) {
463 tn = typeName(where, p);
464 String[] gs = toGetSet(p.name(), tn, p.array());
467 w.write("private KOList<" + tn + "> prop_" + p.name() + " = new KOList<" + tn + ">(\""
469 final Collection<String> dependants = deps.get(p.name());
470 if (dependants != null) {
471 for (String depProp : dependants) {
479 w.write("public java.util.List<" + tn + "> " + gs[0] + "() {\n");
480 w.write(" if (locked) throw new IllegalStateException();\n");
481 w.write(" prop_" + p.name() + ".assign(ko);\n");
482 w.write(" return prop_" + p.name() + ";\n");
485 w.write("private " + tn + " prop_" + p.name() + ";\n");
486 w.write("public " + tn + " " + gs[0] + "() {\n");
487 w.write(" if (locked) throw new IllegalStateException();\n");
488 w.write(" return prop_" + p.name() + ";\n");
490 w.write("public void " + gs[1] + "(" + tn + " v) {\n");
491 w.write(" if (locked) throw new IllegalStateException();\n");
492 w.write(" prop_" + p.name() + " = v;\n");
493 w.write(" if (ko != null) {\n");
494 w.write(" ko.valueHasMutated(\"" + p.name() + "\");\n");
495 final Collection<String> dependants = deps.get(p.name());
496 if (dependants != null) {
497 for (String depProp : dependants) {
498 w.write(" ko.valueHasMutated(\"" + depProp + "\");\n");
513 private boolean generateComputedProperties(
514 Writer w, Property[] fixedProps,
515 Collection<? extends Element> arr, Collection<String> props,
516 Map<String,Collection<String>> deps
517 ) throws IOException {
519 for (Element e : arr) {
520 if (e.getKind() != ElementKind.METHOD) {
523 if (e.getAnnotation(ComputedProperty.class) == null) {
526 ExecutableElement ee = (ExecutableElement)e;
527 final TypeMirror rt = ee.getReturnType();
528 final Types tu = processingEnv.getTypeUtils();
529 TypeMirror ert = tu.erasure(rt);
530 String tn = fqn(ert, ee);
531 boolean array = false;
532 if (tn.equals("java.util.List")) {
536 final String sn = ee.getSimpleName().toString();
537 String[] gs = toGetSet(sn, tn, array);
539 w.write("public " + tn + " " + gs[0] + "() {\n");
540 w.write(" if (locked) throw new IllegalStateException();\n");
542 for (VariableElement pe : ee.getParameters()) {
543 final String dn = pe.getSimpleName().toString();
545 if (!verifyPropName(pe, dn, fixedProps)) {
549 final String dt = fqn(pe.asType(), ee);
550 String[] call = toGetSet(dn, dt, false);
551 w.write(" " + dt + " arg" + (++arg) + " = ");
552 w.write(call[0] + "();\n");
554 Collection<String> depends = deps.get(dn);
555 if (depends == null) {
556 depends = new LinkedHashSet<>();
557 deps.put(dn, depends);
562 w.write(" locked = true;\n");
563 w.write(" return " + e.getEnclosingElement().getSimpleName() + '.' + e.getSimpleName() + "(");
565 for (int i = 1; i <= arg; i++) {
571 w.write(" } finally {\n");
572 w.write(" locked = false;\n");
576 props.add(e.getSimpleName().toString());
585 private static String[] toGetSet(String name, String type, boolean array) {
586 String n = Character.toUpperCase(name.charAt(0)) + name.substring(1);
587 String bck2brwsrType = "L" + type.replace('.', '_') + "_2";
588 if ("int".equals(type)) {
591 if ("double".equals(type)) {
595 if ("boolean".equals(type)) {
599 final String nu = n.replace('.', '_');
601 return new String[] {
604 "get" + nu + "__Ljava_util_List_2",
611 pref + nu + "__" + bck2brwsrType,
612 "set" + nu + "__V" + bck2brwsrType
616 private String typeName(Element where, Property p) {
618 boolean[] isModel = { false };
619 boolean[] isEnum = { false };
620 ret = checkType(p, isModel, isEnum);
622 String bt = findBoxedType(ret);
627 if (!isModel[0] && !"java.lang.String".equals(ret) && !isEnum[0]) {
628 String bt = findBoxedType(ret);
631 Diagnostic.Kind.ERROR,
632 "Only primitive types supported in the mapping. Not " + ret,
640 private static String findBoxedType(String ret) {
641 if (ret.equals("boolean")) {
642 return Boolean.class.getName();
644 if (ret.equals("byte")) {
645 return Byte.class.getName();
647 if (ret.equals("short")) {
648 return Short.class.getName();
650 if (ret.equals("char")) {
651 return Character.class.getName();
653 if (ret.equals("int")) {
654 return Integer.class.getName();
656 if (ret.equals("long")) {
657 return Long.class.getName();
659 if (ret.equals("float")) {
660 return Float.class.getName();
662 if (ret.equals("double")) {
663 return Double.class.getName();
668 private boolean verifyPropName(Element e, String propName, Property[] existingProps) {
669 StringBuilder sb = new StringBuilder();
671 for (Property property : existingProps) {
672 if (property.name().equals(propName)) {
677 sb.append(property.name());
681 err().printMessage(Diagnostic.Kind.ERROR,
682 propName + " is not one of known properties: " + sb
688 private static String findPkgName(Element e) {
690 if (e.getKind() == ElementKind.PACKAGE) {
691 return ((PackageElement)e).getQualifiedName().toString();
693 e = e.getEnclosingElement();
697 private boolean generateFunctions(
698 Element clazz, StringWriter body, String className,
699 List<? extends Element> enclosedElements, List<String> functions
701 for (Element m : enclosedElements) {
702 if (m.getKind() != ElementKind.METHOD) {
705 ExecutableElement e = (ExecutableElement)m;
706 OnFunction onF = e.getAnnotation(OnFunction.class);
710 if (!e.getModifiers().contains(Modifier.STATIC)) {
712 Diagnostic.Kind.ERROR, "@OnFunction method needs to be static", e
716 if (e.getModifiers().contains(Modifier.PRIVATE)) {
718 Diagnostic.Kind.ERROR, "@OnFunction method cannot be private", e
722 if (e.getReturnType().getKind() != TypeKind.VOID) {
724 Diagnostic.Kind.ERROR, "@OnFunction method should return void", e
728 String n = e.getSimpleName().toString();
729 body.append("private void ").append(n).append("(Object data, Object ev) {\n");
730 body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
731 body.append(wrapParams(e, null, className, "ev", "data"));
736 functions.add(n + "__VLjava_lang_Object_2Ljava_lang_Object_2");
741 private boolean generateReceive(
742 Element clazz, StringWriter body, String className,
743 List<? extends Element> enclosedElements, List<String> functions
745 for (Element m : enclosedElements) {
746 if (m.getKind() != ElementKind.METHOD) {
749 ExecutableElement e = (ExecutableElement)m;
750 OnReceive onR = e.getAnnotation(OnReceive.class);
754 if (!e.getModifiers().contains(Modifier.STATIC)) {
756 Diagnostic.Kind.ERROR, "@OnReceive method needs to be static", e
760 if (e.getModifiers().contains(Modifier.PRIVATE)) {
762 Diagnostic.Kind.ERROR, "@OnReceive method cannot be private", e
766 if (e.getReturnType().getKind() != TypeKind.VOID) {
768 Diagnostic.Kind.ERROR, "@OnReceive method should return void", e
772 String modelClass = null;
773 boolean expectsList = false;
774 List<String> args = new ArrayList<>();
776 for (VariableElement ve : e.getParameters()) {
777 TypeMirror modelType = null;
778 if (ve.asType().toString().equals(className)) {
779 args.add(className + ".this");
780 } else if (isModel(ve.asType())) {
781 modelType = ve.asType();
782 } else if (ve.asType().getKind() == TypeKind.ARRAY) {
783 modelType = ((ArrayType)ve.asType()).getComponentType();
786 if (modelType != null) {
787 if (modelClass != null) {
788 err().printMessage(Diagnostic.Kind.ERROR, "There can be only one model class among arguments", e);
790 modelClass = modelType.toString();
800 if (modelClass == null) {
801 err().printMessage(Diagnostic.Kind.ERROR, "The method needs to have one @Model class as parameter", e);
803 String n = e.getSimpleName().toString();
804 body.append("public void ").append(n).append("(");
805 StringBuilder assembleURL = new StringBuilder();
808 for (String p : findParamNames(e, onR.url(), assembleURL)) {
810 body.append("String ").append(p);
814 body.append(") {\n");
815 body.append(" final Object[] result = { null };\n");
817 " class ProcessResult implements Runnable {\n" +
819 " public void run() {\n" +
820 " Object value = result[0];\n");
822 " " + modelClass + "[] arr;\n");
824 " if (value instanceof Object[]) {\n" +
825 " Object[] data = ((Object[])value);\n" +
826 " arr = new " + modelClass + "[data.length];\n" +
827 " for (int i = 0; i < data.length; i++) {\n" +
828 " arr[i] = new " + modelClass + "(data[i]);\n" +
831 " arr = new " + modelClass + "[1];\n" +
832 " arr[0] = new " + modelClass + "(value);\n" +
836 body.append(clazz.getSimpleName()).append(".").append(n).append("(");
838 for (String arg : args) {
849 body.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.loadJSON(\n ");
850 body.append(assembleURL);
851 body.append(", result, new ProcessResult()\n );\n");
852 // body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
853 // body.append(wrapParams(e, null, className, "ev", "data"));
854 // body.append(");\n");
860 private CharSequence wrapParams(
861 ExecutableElement ee, String id, String className, String evName, String dataName
863 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
864 StringBuilder params = new StringBuilder();
865 boolean first = true;
866 for (VariableElement ve : ee.getParameters()) {
871 String toCall = null;
872 if (ve.asType() == stringType) {
873 if (ve.getSimpleName().contentEquals("id")) {
874 params.append('"').append(id).append('"');
877 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toString(";
879 if (ve.asType().getKind() == TypeKind.DOUBLE) {
880 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toDouble(";
882 if (ve.asType().getKind() == TypeKind.INT) {
883 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toInt(";
885 if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {
886 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toModel(" + ve.asType() + ".class, ";
889 if (toCall != null) {
890 params.append(toCall);
891 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {
892 params.append(dataName);
893 params.append(", null");
895 params.append(evName);
896 params.append(", \"");
897 params.append(ve.getSimpleName().toString());
903 String rn = fqn(ve.asType(), ee);
904 int last = rn.lastIndexOf('.');
906 rn = rn.substring(last + 1);
908 if (rn.equals(className)) {
909 params.append(className).append(".this");
912 err().printMessage(Diagnostic.Kind.ERROR,
913 "@On method can only accept String named 'id' or " + className + " arguments",
920 private boolean isModel(TypeMirror tm) {
921 final Element e = processingEnv.getTypeUtils().asElement(tm);
925 for (Element ch : e.getEnclosedElements()) {
926 if (ch.getKind() == ElementKind.METHOD) {
927 ExecutableElement ee = (ExecutableElement)ch;
928 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {
933 return models.values().contains(e.getSimpleName().toString());
936 private void writeStringArray(List<String> strings, Writer w) throws IOException {
937 w.write("new String[] {\n");
939 for (String n : strings) {
944 w.write(" \"" + n + "\"");
951 private void writeToString(Property[] props, Writer w) throws IOException {
952 w.write(" public String toString() {\n");
953 w.write(" StringBuilder sb = new StringBuilder();\n");
954 w.write(" sb.append('{');\n");
956 for (Property p : props) {
958 w.append(" sb.append(\"" + p.name() + ": \");\n");
959 w.append(" sb.append(org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toJSON(prop_");
960 w.append(p.name()).append("));\n");
961 sep = " sb.append(',');\n";
963 w.write(" sb.append('}');\n");
964 w.write(" return sb.toString();\n");
967 private void writeClone(String className, Property[] props, Writer w) throws IOException {
968 w.write(" public " + className + " clone() {\n");
969 w.write(" " + className + " ret = new " + className + "();\n");
970 for (Property p : props) {
972 boolean isModel[] = { false };
973 boolean isEnum[] = { false };
974 checkType(p, isModel, isEnum);
976 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ";\n");
980 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
983 w.write(" return ret;\n");
987 private String inPckName(Element e) {
988 StringBuilder sb = new StringBuilder();
989 while (e.getKind() != ElementKind.PACKAGE) {
990 if (sb.length() == 0) {
991 sb.append(e.getSimpleName());
994 sb.insert(0, e.getSimpleName());
996 e = e.getEnclosingElement();
998 return sb.toString();
1001 private String fqn(TypeMirror pt, Element relative) {
1002 if (pt.getKind() == TypeKind.ERROR) {
1003 final Elements eu = processingEnv.getElementUtils();
1004 PackageElement pckg = eu.getPackageOf(relative);
1005 return pckg.getQualifiedName() + "." + pt.toString();
1007 return pt.toString();
1010 private String checkType(Property p, boolean[] isModel, boolean[] isEnum) {
1013 ret = p.type().getName();
1014 } catch (MirroredTypeException ex) {
1015 TypeMirror tm = processingEnv.getTypeUtils().erasure(ex.getTypeMirror());
1016 final Element e = processingEnv.getTypeUtils().asElement(tm);
1017 final Model m = e == null ? null : e.getAnnotation(Model.class);
1019 ret = findPkgName(e) + '.' + m.className();
1021 models.put(e, m.className());
1023 ret = tm.toString();
1025 TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();
1026 enm = processingEnv.getTypeUtils().erasure(enm);
1027 isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);
1032 private Iterable<String> findParamNames(Element e, String url, StringBuilder assembleURL) {
1033 List<String> params = new ArrayList<>();
1035 for (int pos = 0; ;) {
1036 int next = url.indexOf('{', pos);
1038 assembleURL.append('"')
1039 .append(url.substring(pos))
1043 int close = url.indexOf('}', next);
1045 err().printMessage(Diagnostic.Kind.ERROR, "Unbalanced '{' and '}' in " + url, e);
1048 final String paramName = url.substring(next + 1, close);
1049 params.add(paramName);
1050 assembleURL.append('"')
1051 .append(url.substring(pos, next))
1052 .append("\" + ").append(paramName).append(" + ");
1057 private static Property findProperty(Property[] properties, String propName) {
1058 for (Property p : properties) {
1059 if (propName.equals(p.name())) {
1066 private boolean isPrimitive(String type) {
1068 "int".equals(type) ||
1069 "double".equals(type) ||
1070 "long".equals(type) ||
1071 "short".equals(type) ||
1072 "byte".equals(type) ||
1073 "float".equals(type);