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.MirroredTypeException;
50 import javax.lang.model.type.TypeKind;
51 import javax.lang.model.type.TypeMirror;
52 import javax.lang.model.util.Elements;
53 import javax.lang.model.util.Types;
54 import javax.tools.Diagnostic;
55 import javax.tools.FileObject;
56 import javax.tools.StandardLocation;
57 import org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty;
58 import org.apidesign.bck2brwsr.htmlpage.api.Model;
59 import org.apidesign.bck2brwsr.htmlpage.api.On;
60 import org.apidesign.bck2brwsr.htmlpage.api.OnFunction;
61 import org.apidesign.bck2brwsr.htmlpage.api.OnReceive;
62 import org.apidesign.bck2brwsr.htmlpage.api.Page;
63 import org.apidesign.bck2brwsr.htmlpage.api.Property;
64 import org.openide.util.lookup.ServiceProvider;
66 /** Annotation processor to process an XHTML page and generate appropriate
69 * @author Jaroslav Tulach <jtulach@netbeans.org>
71 @ServiceProvider(service=Processor.class)
72 @SupportedAnnotationTypes({
73 "org.apidesign.bck2brwsr.htmlpage.api.Model",
74 "org.apidesign.bck2brwsr.htmlpage.api.Page",
75 "org.apidesign.bck2brwsr.htmlpage.api.OnFunction",
76 "org.apidesign.bck2brwsr.htmlpage.api.OnReceive",
77 "org.apidesign.bck2brwsr.htmlpage.api.On"
79 public final class PageProcessor extends AbstractProcessor {
80 private final Map<Element,String> models = new WeakHashMap<>();
82 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
84 for (Element e : roundEnv.getElementsAnnotatedWith(Model.class)) {
85 if (!processModel(e)) {
89 for (Element e : roundEnv.getElementsAnnotatedWith(Page.class)) {
90 if (!processPage(e)) {
94 if (roundEnv.processingOver()) {
100 private InputStream openStream(String pkg, String name) throws IOException {
102 FileObject fo = processingEnv.getFiler().getResource(
103 StandardLocation.SOURCE_PATH, pkg, name);
104 return fo.openInputStream();
105 } catch (IOException ex) {
106 return processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name).openInputStream();
110 private Messager err() {
111 return processingEnv.getMessager();
114 private boolean processModel(Element e) {
116 Model m = e.getAnnotation(Model.class);
120 String pkg = findPkgName(e);
122 String className = m.className();
124 StringWriter body = new StringWriter();
125 List<String> propsGetSet = new ArrayList<>();
126 List<String> functions = new ArrayList<>();
127 Map<String, Collection<String>> propsDeps = new HashMap<>();
128 if (!generateComputedProperties(body, m.properties(), e.getEnclosedElements(), propsGetSet, propsDeps)) {
131 if (!generateProperties(e, body, m.properties(), propsGetSet, propsDeps)) {
134 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
137 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
138 w = new OutputStreamWriter(java.openOutputStream());
140 w.append("package " + pkg + ";\n");
141 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
142 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
143 w.append("import org.apidesign.bck2brwsr.core.JavaScriptOnly;\n");
144 w.append("final class ").append(className).append(" implements Cloneable {\n");
145 w.append(" private boolean locked;\n");
146 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
147 w.append(body.toString());
148 w.append(" private static Class<" + inPckName(e) + "> modelFor() { return null; }\n");
149 w.append(" public ").append(className).append("() {\n");
150 w.append(" intKnckt();\n");
152 w.append(" private void intKnckt() {\n");
153 w.append(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(this, ");
154 writeStringArray(propsGetSet, w);
156 writeStringArray(functions, w);
159 w.append(" ").append(className).append("(Object json) {\n");
161 for (int i = 0; i < propsGetSet.size(); i += 4) {
162 if (propsGetSet.get(i + 2) == null) {
167 w.append(" Object[] ret = new Object[" + values + "];\n");
168 w.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.extractJSON(json, new String[] {\n");
169 for (int i = 0; i < propsGetSet.size(); i += 4) {
170 if (propsGetSet.get(i + 2) == null) {
173 w.append(" \"").append(propsGetSet.get(i)).append("\",\n");
175 w.append(" }, ret);\n");
176 for (int i = 0, cnt = 0, prop = 0; i < propsGetSet.size(); i += 4) {
177 if (propsGetSet.get(i + 2) == null) {
180 boolean[] isModel = { false };
181 boolean[] isEnum = { false };
182 String type = checkType(m.properties()[prop++], isModel, isEnum);
183 w.append(" this.prop_").append(propsGetSet.get(i)).append(" = ");
184 boolean close = false;
186 // w.append(type).append(".valueOf((String)");
191 w.append('(').append(type).append(')');
193 w.append("ret[" + cnt++ + "]");
201 w.append(" intKnckt();\n");
203 writeToString(m.properties(), w);
204 writeClone(className, m.properties(), w);
209 } catch (IOException ex) {
210 err().printMessage(Diagnostic.Kind.ERROR, "Can't create " + className + ".java", e);
216 private boolean processPage(Element e) {
218 Page p = e.getAnnotation(Page.class);
222 String pkg = findPkgName(e);
225 try (InputStream is = openStream(pkg, p.xhtml())) {
226 pp = ProcessPage.readPage(is);
228 } catch (IOException iOException) {
229 err().printMessage(Diagnostic.Kind.ERROR, "Can't read " + p.xhtml() + " as " + iOException.getMessage(), e);
234 String className = p.className();
235 if (className.isEmpty()) {
236 int indx = p.xhtml().indexOf('.');
237 className = p.xhtml().substring(0, indx);
240 StringWriter body = new StringWriter();
241 List<String> propsGetSet = new ArrayList<>();
242 List<String> functions = new ArrayList<>();
243 Map<String, Collection<String>> propsDeps = new HashMap<>();
244 if (!generateComputedProperties(body, p.properties(), e.getEnclosedElements(), propsGetSet, propsDeps)) {
247 if (!generateProperties(e, body, p.properties(), propsGetSet, propsDeps)) {
250 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
253 if (!generateReceive(e, body, className, e.getEnclosedElements(), functions)) {
257 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
258 w = new OutputStreamWriter(java.openOutputStream());
260 w.append("package " + pkg + ";\n");
261 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
262 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
263 w.append("final class ").append(className).append(" {\n");
264 w.append(" private boolean locked;\n");
265 if (!initializeOnClick(className, (TypeElement) e, w, pp)) {
268 if (pp != null) for (String id : pp.ids()) {
269 String tag = pp.tagNameForId(id);
270 String type = type(tag);
271 w.append(" ").append("public final ").
272 append(type).append(' ').append(cnstnt(id)).append(" = new ").
273 append(type).append("(\"").append(id).append("\");\n");
276 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
277 w.append(body.toString());
278 if (!propsGetSet.isEmpty()) {
279 w.write("public " + className + " applyBindings() {\n");
280 w.write(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(");
281 w.write(className + ".class, this, ");
282 writeStringArray(propsGetSet, w);
284 writeStringArray(functions, w);
285 w.write(");\n return this;\n}\n");
287 w.write("public void triggerEvent(Element e, OnEvent ev) {\n");
288 w.write(" org.apidesign.bck2brwsr.htmlpage.Knockout.triggerEvent(e.getId(), ev.getElementPropertyName());\n");
295 } catch (IOException ex) {
296 err().printMessage(Diagnostic.Kind.ERROR, "Can't create " + className + ".java", e);
302 private static String type(String tag) {
303 if (tag.equals("title")) {
306 if (tag.equals("button")) {
309 if (tag.equals("input")) {
312 if (tag.equals("canvas")) {
315 if (tag.equals("img")) {
321 private static String cnstnt(String id) {
322 return id.replace('.', '_').replace('-', '_');
325 private boolean initializeOnClick(
326 String className, TypeElement type, Writer w, ProcessPage pp
327 ) throws IOException {
329 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
330 { //for (Element clazz : pe.getEnclosedElements()) {
331 // if (clazz.getKind() != ElementKind.CLASS) {
334 w.append(" public ").append(className).append("() {\n");
335 StringBuilder dispatch = new StringBuilder();
337 for (Element method : type.getEnclosedElements()) {
338 On oc = method.getAnnotation(On.class);
340 for (String id : oc.id()) {
342 err().printMessage(Diagnostic.Kind.ERROR, "id = " + id + " not found in HTML page.");
346 if (pp.tagNameForId(id) == null) {
347 err().printMessage(Diagnostic.Kind.ERROR, "id = " + id + " does not exist in the HTML page. Found only " + pp.ids(), method);
351 ExecutableElement ee = (ExecutableElement)method;
352 CharSequence params = wrapParams(ee, id, className, "ev", null);
353 if (!ee.getModifiers().contains(Modifier.STATIC)) {
354 err().printMessage(Diagnostic.Kind.ERROR, "@On method has to be static", ee);
358 if (ee.getModifiers().contains(Modifier.PRIVATE)) {
359 err().printMessage(Diagnostic.Kind.ERROR, "@On method can't be private", ee);
363 w.append(" OnEvent." + oc.event()).append(".of(").append(cnstnt(id)).
364 append(").perform(new OnDispatch(" + dispatchCnt + "));\n");
367 append(" case ").append(dispatchCnt).append(": ").
368 append(type.getSimpleName().toString()).
369 append('.').append(ee.getSimpleName()).append("(").
371 append("); break;\n");
378 if (dispatchCnt > 0) {
379 w.append("class OnDispatch implements OnHandler {\n");
380 w.append(" private final int dispatch;\n");
381 w.append(" OnDispatch(int d) { dispatch = d; }\n");
382 w.append(" public void onEvent(Object ev) {\n");
383 w.append(" switch (dispatch) {\n");
396 public Iterable<? extends Completion> getCompletions(
397 Element element, AnnotationMirror annotation,
398 ExecutableElement member, String userText
400 if (!userText.startsWith("\"")) {
401 return Collections.emptyList();
404 Element cls = findClass(element);
405 Page p = cls.getAnnotation(Page.class);
406 String pkg = findPkgName(cls);
409 InputStream is = openStream(pkg, p.xhtml());
410 pp = ProcessPage.readPage(is);
412 } catch (IOException iOException) {
413 return Collections.emptyList();
416 List<Completion> cc = new ArrayList<>();
417 userText = userText.substring(1);
418 for (String id : pp.ids()) {
419 if (id.startsWith(userText)) {
420 cc.add(Completions.of("\"" + id + "\"", id));
426 private static Element findClass(Element e) {
430 Page p = e.getAnnotation(Page.class);
434 return e.getEnclosingElement();
437 private boolean generateProperties(
439 Writer w, Property[] properties,
440 Collection<String> props, Map<String,Collection<String>> deps
441 ) throws IOException {
443 for (Property p : properties) {
445 tn = typeName(where, p);
446 String[] gs = toGetSet(p.name(), tn, p.array());
449 w.write("private KOList<" + tn + "> prop_" + p.name() + " = new KOList<" + tn + ">(\""
451 final Collection<String> dependants = deps.get(p.name());
452 if (dependants != null) {
453 for (String depProp : dependants) {
461 w.write("public java.util.List<" + tn + "> " + gs[0] + "() {\n");
462 w.write(" if (locked) throw new IllegalStateException();\n");
463 w.write(" prop_" + p.name() + ".assign(ko);\n");
464 w.write(" return prop_" + p.name() + ";\n");
467 w.write("private " + tn + " prop_" + p.name() + ";\n");
468 w.write("public " + tn + " " + gs[0] + "() {\n");
469 w.write(" if (locked) throw new IllegalStateException();\n");
470 w.write(" return prop_" + p.name() + ";\n");
472 w.write("public void " + gs[1] + "(" + tn + " v) {\n");
473 w.write(" if (locked) throw new IllegalStateException();\n");
474 w.write(" prop_" + p.name() + " = v;\n");
475 w.write(" if (ko != null) {\n");
476 w.write(" ko.valueHasMutated(\"" + p.name() + "\");\n");
477 final Collection<String> dependants = deps.get(p.name());
478 if (dependants != null) {
479 for (String depProp : dependants) {
480 w.write(" ko.valueHasMutated(\"" + depProp + "\");\n");
495 private boolean generateComputedProperties(
496 Writer w, Property[] fixedProps,
497 Collection<? extends Element> arr, Collection<String> props,
498 Map<String,Collection<String>> deps
499 ) throws IOException {
501 for (Element e : arr) {
502 if (e.getKind() != ElementKind.METHOD) {
505 if (e.getAnnotation(ComputedProperty.class) == null) {
508 ExecutableElement ee = (ExecutableElement)e;
509 final TypeMirror rt = ee.getReturnType();
510 final Types tu = processingEnv.getTypeUtils();
511 TypeMirror ert = tu.erasure(rt);
512 String tn = fqn(ert, ee);
513 boolean array = false;
514 if (tn.equals("java.util.List")) {
518 final String sn = ee.getSimpleName().toString();
519 String[] gs = toGetSet(sn, tn, array);
521 w.write("public " + tn + " " + gs[0] + "() {\n");
522 w.write(" if (locked) throw new IllegalStateException();\n");
524 for (VariableElement pe : ee.getParameters()) {
525 final String dn = pe.getSimpleName().toString();
527 if (!verifyPropName(pe, dn, fixedProps)) {
531 final String dt = fqn(pe.asType(), ee);
532 String[] call = toGetSet(dn, dt, false);
533 w.write(" " + dt + " arg" + (++arg) + " = ");
534 w.write(call[0] + "();\n");
536 Collection<String> depends = deps.get(dn);
537 if (depends == null) {
538 depends = new LinkedHashSet<>();
539 deps.put(dn, depends);
544 w.write(" locked = true;\n");
545 w.write(" return " + e.getEnclosingElement().getSimpleName() + '.' + e.getSimpleName() + "(");
547 for (int i = 1; i <= arg; i++) {
553 w.write(" } finally {\n");
554 w.write(" locked = false;\n");
558 props.add(e.getSimpleName().toString());
567 private static String[] toGetSet(String name, String type, boolean array) {
568 String n = Character.toUpperCase(name.charAt(0)) + name.substring(1);
569 String bck2brwsrType = "L" + type.replace('.', '_') + "_2";
570 if ("int".equals(type)) {
573 if ("double".equals(type)) {
577 if ("boolean".equals(type)) {
581 final String nu = n.replace('.', '_');
583 return new String[] {
586 "get" + nu + "__Ljava_util_List_2",
593 pref + nu + "__" + bck2brwsrType,
594 "set" + nu + "__V" + bck2brwsrType
598 private String typeName(Element where, Property p) {
600 boolean[] isModel = { false };
601 boolean[] isEnum = { false };
602 ret = checkType(p, isModel, isEnum);
604 String bt = findBoxedType(ret);
609 if (!isModel[0] && !"java.lang.String".equals(ret) && !isEnum[0]) {
610 String bt = findBoxedType(ret);
613 Diagnostic.Kind.ERROR,
614 "Only primitive types supported in the mapping. Not " + ret,
622 private static String findBoxedType(String ret) {
623 if (ret.equals("boolean")) {
624 return Boolean.class.getName();
626 if (ret.equals("byte")) {
627 return Byte.class.getName();
629 if (ret.equals("short")) {
630 return Short.class.getName();
632 if (ret.equals("char")) {
633 return Character.class.getName();
635 if (ret.equals("int")) {
636 return Integer.class.getName();
638 if (ret.equals("long")) {
639 return Long.class.getName();
641 if (ret.equals("float")) {
642 return Float.class.getName();
644 if (ret.equals("double")) {
645 return Double.class.getName();
650 private boolean verifyPropName(Element e, String propName, Property[] existingProps) {
651 StringBuilder sb = new StringBuilder();
653 for (Property property : existingProps) {
654 if (property.name().equals(propName)) {
659 sb.append(property.name());
663 err().printMessage(Diagnostic.Kind.ERROR,
664 propName + " is not one of known properties: " + sb
670 private static String findPkgName(Element e) {
672 if (e.getKind() == ElementKind.PACKAGE) {
673 return ((PackageElement)e).getQualifiedName().toString();
675 e = e.getEnclosingElement();
679 private boolean generateFunctions(
680 Element clazz, StringWriter body, String className,
681 List<? extends Element> enclosedElements, List<String> functions
683 for (Element m : enclosedElements) {
684 if (m.getKind() != ElementKind.METHOD) {
687 ExecutableElement e = (ExecutableElement)m;
688 OnFunction onF = e.getAnnotation(OnFunction.class);
692 if (!e.getModifiers().contains(Modifier.STATIC)) {
694 Diagnostic.Kind.ERROR, "@OnFunction method needs to be static", e
698 if (e.getModifiers().contains(Modifier.PRIVATE)) {
700 Diagnostic.Kind.ERROR, "@OnFunction method cannot be private", e
704 if (e.getReturnType().getKind() != TypeKind.VOID) {
706 Diagnostic.Kind.ERROR, "@OnFunction method should return void", e
710 String n = e.getSimpleName().toString();
711 body.append("private void ").append(n).append("(Object data, Object ev) {\n");
712 body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
713 body.append(wrapParams(e, null, className, "ev", "data"));
718 functions.add(n + "__VLjava_lang_Object_2Ljava_lang_Object_2");
723 private boolean generateReceive(
724 Element clazz, StringWriter body, String className,
725 List<? extends Element> enclosedElements, List<String> functions
727 for (Element m : enclosedElements) {
728 if (m.getKind() != ElementKind.METHOD) {
731 ExecutableElement e = (ExecutableElement)m;
732 OnReceive onR = e.getAnnotation(OnReceive.class);
736 if (!e.getModifiers().contains(Modifier.STATIC)) {
738 Diagnostic.Kind.ERROR, "@OnReceive method needs to be static", e
742 if (e.getModifiers().contains(Modifier.PRIVATE)) {
744 Diagnostic.Kind.ERROR, "@OnReceive method cannot be private", e
748 if (e.getReturnType().getKind() != TypeKind.VOID) {
750 Diagnostic.Kind.ERROR, "@OnReceive method should return void", e
754 String modelClass = null;
755 List<String> args = new ArrayList<>();
757 for (VariableElement ve : e.getParameters()) {
758 if (ve.asType().toString().equals(className)) {
759 args.add(className + ".this");
760 } else if (isModel(ve.asType())) {
761 if (modelClass != null) {
762 err().printMessage(Diagnostic.Kind.ERROR, "There can be only one model class among arguments", e);
764 modelClass = ve.asType().toString();
765 args.add("new " + modelClass + "(value)");
770 String n = e.getSimpleName().toString();
771 body.append("public void ").append(n).append("(");
772 StringBuilder assembleURL = new StringBuilder();
775 for (String p : findParamNames(e, onR.url(), assembleURL)) {
777 body.append("String ").append(p);
781 body.append(") {\n");
782 body.append(" final Object[] result = { null };\n");
784 " class ProcessResult implements Runnable {\n" +
786 " public void run() {\n" +
787 " Object value = result[0];\n" +
788 " if (value instanceof Object[]) {\n" +
789 " throw new IllegalStateException(\"Array value: \" + value);\n" +
792 body.append(clazz.getSimpleName()).append(".").append(n).append("(");
794 for (String arg : args) {
806 body.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.loadJSON(\n ");
807 body.append(assembleURL);
808 body.append(", result, new ProcessResult()\n );\n");
809 // body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
810 // body.append(wrapParams(e, null, className, "ev", "data"));
811 // body.append(");\n");
817 private CharSequence wrapParams(
818 ExecutableElement ee, String id, String className, String evName, String dataName
820 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
821 StringBuilder params = new StringBuilder();
822 boolean first = true;
823 for (VariableElement ve : ee.getParameters()) {
828 String toCall = null;
829 if (ve.asType() == stringType) {
830 if (ve.getSimpleName().contentEquals("id")) {
831 params.append('"').append(id).append('"');
834 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toString(";
836 if (ve.asType().getKind() == TypeKind.DOUBLE) {
837 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toDouble(";
839 if (ve.asType().getKind() == TypeKind.INT) {
840 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toInt(";
842 if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {
843 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toModel(" + ve.asType() + ".class, ";
846 if (toCall != null) {
847 params.append(toCall);
848 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {
849 params.append(dataName);
850 params.append(", null");
852 params.append(evName);
853 params.append(", \"");
854 params.append(ve.getSimpleName().toString());
860 String rn = fqn(ve.asType(), ee);
861 int last = rn.lastIndexOf('.');
863 rn = rn.substring(last + 1);
865 if (rn.equals(className)) {
866 params.append(className).append(".this");
869 err().printMessage(Diagnostic.Kind.ERROR,
870 "@On method can only accept String named 'id' or " + className + " arguments",
877 private boolean isModel(TypeMirror tm) {
878 final Element e = processingEnv.getTypeUtils().asElement(tm);
882 for (Element ch : e.getEnclosedElements()) {
883 if (ch.getKind() == ElementKind.METHOD) {
884 ExecutableElement ee = (ExecutableElement)ch;
885 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {
890 return models.values().contains(e.getSimpleName().toString());
893 private void writeStringArray(List<String> strings, Writer w) throws IOException {
894 w.write("new String[] {\n");
896 for (String n : strings) {
901 w.write(" \"" + n + "\"");
908 private void writeToString(Property[] props, Writer w) throws IOException {
909 w.write(" public String toString() {\n");
910 w.write(" StringBuilder sb = new StringBuilder();\n");
911 w.write(" sb.append('{');\n");
913 for (Property p : props) {
915 w.append(" sb.append(\"" + p.name() + ": \");\n");
916 w.append(" sb.append(org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toJSON(prop_");
917 w.append(p.name()).append("));\n");
918 sep = " sb.append(',');\n";
920 w.write(" sb.append('}');\n");
921 w.write(" return sb.toString();\n");
924 private void writeClone(String className, Property[] props, Writer w) throws IOException {
925 w.write(" public " + className + " clone() {\n");
926 w.write(" " + className + " ret = new " + className + "();\n");
927 for (Property p : props) {
929 boolean isModel[] = { false };
930 boolean isEnum[] = { false };
931 checkType(p, isModel, isEnum);
933 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ";\n");
937 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
940 w.write(" return ret;\n");
944 private String inPckName(Element e) {
945 StringBuilder sb = new StringBuilder();
946 while (e.getKind() != ElementKind.PACKAGE) {
947 if (sb.length() == 0) {
948 sb.append(e.getSimpleName());
951 sb.insert(0, e.getSimpleName());
953 e = e.getEnclosingElement();
955 return sb.toString();
958 private String fqn(TypeMirror pt, Element relative) {
959 if (pt.getKind() == TypeKind.ERROR) {
960 final Elements eu = processingEnv.getElementUtils();
961 PackageElement pckg = eu.getPackageOf(relative);
962 return pckg.getQualifiedName() + "." + pt.toString();
964 return pt.toString();
967 private String checkType(Property p, boolean[] isModel, boolean[] isEnum) {
970 ret = p.type().getName();
971 } catch (MirroredTypeException ex) {
972 TypeMirror tm = processingEnv.getTypeUtils().erasure(ex.getTypeMirror());
973 final Element e = processingEnv.getTypeUtils().asElement(tm);
974 final Model m = e == null ? null : e.getAnnotation(Model.class);
976 ret = findPkgName(e) + '.' + m.className();
978 models.put(e, m.className());
982 TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();
983 enm = processingEnv.getTypeUtils().erasure(enm);
984 isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);
989 private Iterable<String> findParamNames(Element e, String url, StringBuilder assembleURL) {
990 List<String> params = new ArrayList<>();
992 for (int pos = 0; ;) {
993 int next = url.indexOf('{', pos);
995 assembleURL.append('"')
996 .append(url.substring(pos))
1000 int close = url.indexOf('}', next);
1002 err().printMessage(Diagnostic.Kind.ERROR, "Unbalanced '{' and '}' in " + url, e);
1005 final String paramName = url.substring(next + 1, close);
1006 params.add(paramName);
1007 assembleURL.append('"')
1008 .append(url.substring(pos, next))
1009 .append("\" + ").append(paramName).append(" + ");