NetBeans Javac throws different exception than AnnotationTypeMismatchException - catch that one as well
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.lang.annotation.AnnotationTypeMismatchException;
26 import java.lang.annotation.IncompleteAnnotationException;
27 import java.lang.reflect.Method;
28 import java.util.ArrayList;
29 import java.util.Collection;
30 import java.util.Collections;
31 import java.util.HashMap;
32 import java.util.HashSet;
33 import java.util.LinkedHashSet;
34 import java.util.List;
37 import java.util.WeakHashMap;
38 import javax.annotation.processing.AbstractProcessor;
39 import javax.annotation.processing.Completion;
40 import javax.annotation.processing.Completions;
41 import javax.annotation.processing.ProcessingEnvironment;
42 import javax.annotation.processing.Processor;
43 import javax.annotation.processing.RoundEnvironment;
44 import javax.annotation.processing.SupportedAnnotationTypes;
45 import javax.lang.model.element.AnnotationMirror;
46 import javax.lang.model.element.AnnotationValue;
47 import javax.lang.model.element.Element;
48 import javax.lang.model.element.ElementKind;
49 import javax.lang.model.element.ExecutableElement;
50 import javax.lang.model.element.Modifier;
51 import javax.lang.model.element.PackageElement;
52 import javax.lang.model.element.TypeElement;
53 import javax.lang.model.element.VariableElement;
54 import javax.lang.model.type.ArrayType;
55 import javax.lang.model.type.MirroredTypeException;
56 import javax.lang.model.type.TypeKind;
57 import javax.lang.model.type.TypeMirror;
58 import javax.lang.model.util.Elements;
59 import javax.lang.model.util.Types;
60 import javax.tools.Diagnostic;
61 import javax.tools.FileObject;
62 import javax.tools.StandardLocation;
63 import org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty;
64 import org.apidesign.bck2brwsr.htmlpage.api.Model;
65 import org.apidesign.bck2brwsr.htmlpage.api.On;
66 import org.apidesign.bck2brwsr.htmlpage.api.OnFunction;
67 import org.apidesign.bck2brwsr.htmlpage.api.OnPropertyChange;
68 import org.apidesign.bck2brwsr.htmlpage.api.OnReceive;
69 import org.apidesign.bck2brwsr.htmlpage.api.Page;
70 import org.apidesign.bck2brwsr.htmlpage.api.Property;
71 import org.openide.util.lookup.ServiceProvider;
73 /** Annotation processor to process an XHTML page and generate appropriate
76 * @author Jaroslav Tulach <jtulach@netbeans.org>
78 @ServiceProvider(service=Processor.class)
79 @SupportedAnnotationTypes({
80 "org.apidesign.bck2brwsr.htmlpage.api.Model",
81 "org.apidesign.bck2brwsr.htmlpage.api.Page",
82 "org.apidesign.bck2brwsr.htmlpage.api.OnFunction",
83 "org.apidesign.bck2brwsr.htmlpage.api.OnReceive",
84 "org.apidesign.bck2brwsr.htmlpage.api.OnPropertyChange",
85 "org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty",
86 "org.apidesign.bck2brwsr.htmlpage.api.On"
88 public final class PageProcessor extends AbstractProcessor {
89 private final Map<Element,String> models = new WeakHashMap<>();
90 private final Map<Element,Prprt[]> verify = new WeakHashMap<>();
92 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
94 for (Element e : roundEnv.getElementsAnnotatedWith(Model.class)) {
95 if (!processModel(e)) {
99 for (Element e : roundEnv.getElementsAnnotatedWith(Page.class)) {
100 if (!processPage(e)) {
104 if (roundEnv.processingOver()) {
106 for (Map.Entry<Element, Prprt[]> entry : verify.entrySet()) {
107 TypeElement te = (TypeElement)entry.getKey();
108 String fqn = processingEnv.getElementUtils().getBinaryName(te).toString();
109 Element finalElem = processingEnv.getElementUtils().getTypeElement(fqn);
110 if (finalElem == null) {
114 Model m = finalElem.getAnnotation(Model.class);
116 props = Prprt.wrap(processingEnv, finalElem, m.properties());
118 Page p = finalElem.getAnnotation(Page.class);
119 props = Prprt.wrap(processingEnv, finalElem, p.properties());
121 for (Prprt p : props) {
122 boolean[] isModel = { false };
123 boolean[] isEnum = { false };
124 boolean[] isPrimitive = { false };
125 String t = checkType(p, isModel, isEnum, isPrimitive);
129 if (isPrimitive[0]) {
135 if ("java.lang.String".equals(t)) {
138 error("The type " + t + " should be defined by @Model annotation", entry.getKey());
146 private InputStream openStream(String pkg, String name) throws IOException {
148 FileObject fo = processingEnv.getFiler().getResource(
149 StandardLocation.SOURCE_PATH, pkg, name);
150 return fo.openInputStream();
151 } catch (IOException ex) {
152 return processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name).openInputStream();
156 private void error(String msg, Element e) {
157 processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, msg, e);
160 private boolean processModel(Element e) {
162 Model m = e.getAnnotation(Model.class);
166 String pkg = findPkgName(e);
168 String className = m.className();
169 models.put(e, className);
171 StringWriter body = new StringWriter();
172 List<String> propsGetSet = new ArrayList<>();
173 List<String> functions = new ArrayList<>();
174 Map<String, Collection<String>> propsDeps = new HashMap<>();
175 Map<String, Collection<String>> functionDeps = new HashMap<>();
176 Prprt[] props = createProps(e, m.properties());
178 if (!generateComputedProperties(body, props, e.getEnclosedElements(), propsGetSet, propsDeps)) {
181 if (!generateOnChange(e, propsDeps, props, className, functionDeps)) {
184 if (!generateProperties(e, body, props, propsGetSet, propsDeps, functionDeps)) {
187 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
190 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
191 w = new OutputStreamWriter(java.openOutputStream());
193 w.append("package " + pkg + ";\n");
194 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
195 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
196 w.append("import org.apidesign.bck2brwsr.core.JavaScriptOnly;\n");
197 w.append("final class ").append(className).append(" implements Cloneable {\n");
198 w.append(" private boolean locked;\n");
199 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
200 w.append(body.toString());
201 w.append(" private static Class<" + inPckName(e) + "> modelFor() { return null; }\n");
202 w.append(" public ").append(className).append("() {\n");
203 w.append(" intKnckt();\n");
205 w.append(" private void intKnckt() {\n");
206 w.append(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(this, ");
207 writeStringArray(propsGetSet, w);
209 writeStringArray(functions, w);
212 w.append(" ").append(className).append("(Object json) {\n");
214 for (int i = 0; i < propsGetSet.size(); i += 4) {
215 Prprt p = findPrprt(props, propsGetSet.get(i));
221 w.append(" Object[] ret = new Object[" + values + "];\n");
222 w.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.extractJSON(json, new String[] {\n");
223 for (int i = 0; i < propsGetSet.size(); i += 4) {
224 Prprt p = findPrprt(props, propsGetSet.get(i));
228 w.append(" \"").append(propsGetSet.get(i)).append("\",\n");
230 w.append(" }, ret);\n");
231 for (int i = 0, cnt = 0, prop = 0; i < propsGetSet.size(); i += 4) {
232 final String pn = propsGetSet.get(i);
233 Prprt p = findPrprt(props, pn);
237 boolean[] isModel = { false };
238 boolean[] isEnum = { false };
239 boolean isPrimitive[] = { false };
240 String type = checkType(props[prop++], isModel, isEnum, isPrimitive);
242 w.append("if (ret[" + cnt + "] instanceof Object[]) {\n");
243 w.append(" for (Object e : ((Object[])ret[" + cnt + "])) {\n");
245 w.append(" this.prop_").append(pn).append(".add(new ");
246 w.append(type).append("(e));\n");
247 } else if (isEnum[0]) {
248 w.append(" this.prop_").append(pn);
250 w.append(type).append(".valueOf((String)e));\n");
252 if (isPrimitive(type)) {
253 w.append(" this.prop_").append(pn).append(".add(((Number)e).");
254 w.append(type).append("Value());\n");
256 w.append(" this.prop_").append(pn).append(".add((");
257 w.append(type).append(")e);\n");
264 w.append(" this.prop_").append(pn);
266 w.append(type).append(".valueOf((String)ret[" + cnt + "]);\n");
267 } else if (isPrimitive(type)) {
268 w.append(" this.prop_").append(pn);
269 w.append(" = ((Number)").append("ret[" + cnt + "]).");
270 w.append(type).append("Value();\n");
272 w.append(" this.prop_").append(pn);
273 w.append(" = (").append(type).append(')');
274 w.append("ret[" + cnt + "];\n");
279 w.append(" intKnckt();\n");
281 writeToString(props, w);
282 writeClone(className, props, w);
287 } catch (IOException ex) {
288 error("Can't create " + className + ".java", e);
294 private boolean processPage(Element e) {
296 Page p = e.getAnnotation(Page.class);
300 String pkg = findPkgName(e);
303 try (InputStream is = openStream(pkg, p.xhtml())) {
304 pp = ProcessPage.readPage(is);
306 } catch (IOException iOException) {
307 error("Can't read " + p.xhtml() + " as " + iOException.getMessage(), e);
312 String className = p.className();
313 if (className.isEmpty()) {
314 int indx = p.xhtml().indexOf('.');
315 className = p.xhtml().substring(0, indx);
318 StringWriter body = new StringWriter();
319 List<String> propsGetSet = new ArrayList<>();
320 List<String> functions = new ArrayList<>();
321 Map<String, Collection<String>> propsDeps = new HashMap<>();
322 Map<String, Collection<String>> functionDeps = new HashMap<>();
324 Prprt[] props = createProps(e, p.properties());
325 if (!generateComputedProperties(body, props, e.getEnclosedElements(), propsGetSet, propsDeps)) {
328 if (!generateOnChange(e, propsDeps, props, className, functionDeps)) {
331 if (!generateProperties(e, body, props, propsGetSet, propsDeps, functionDeps)) {
334 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
337 if (!generateReceive(e, body, className, e.getEnclosedElements(), functions)) {
341 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
342 w = new OutputStreamWriter(java.openOutputStream());
344 w.append("package " + pkg + ";\n");
345 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
346 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
347 w.append("final class ").append(className).append(" {\n");
348 w.append(" private boolean locked;\n");
349 if (!initializeOnClick(className, (TypeElement) e, w, pp)) {
352 if (pp != null) for (String id : pp.ids()) {
353 String tag = pp.tagNameForId(id);
354 String type = type(tag);
355 w.append(" ").append("public final ").
356 append(type).append(' ').append(cnstnt(id)).append(" = new ").
357 append(type).append("(\"").append(id).append("\");\n");
360 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
361 w.append(body.toString());
362 if (!propsGetSet.isEmpty()) {
363 w.write("public " + className + " applyBindings() {\n");
364 w.write(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(");
365 w.write(className + ".class, this, ");
366 writeStringArray(propsGetSet, w);
368 writeStringArray(functions, w);
369 w.write(");\n return this;\n}\n");
371 w.write("public void triggerEvent(Element e, OnEvent ev) {\n");
372 w.write(" org.apidesign.bck2brwsr.htmlpage.Knockout.triggerEvent(e.getId(), ev.getElementPropertyName());\n");
379 } catch (IOException ex) {
380 error("Can't create " + className + ".java", e);
386 private static String type(String tag) {
387 if (tag.equals("title")) {
390 if (tag.equals("button")) {
393 if (tag.equals("input")) {
396 if (tag.equals("canvas")) {
399 if (tag.equals("img")) {
405 private static String cnstnt(String id) {
406 return id.replace('.', '_').replace('-', '_');
409 private boolean initializeOnClick(
410 String className, TypeElement type, Writer w, ProcessPage pp
411 ) throws IOException {
413 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
414 { //for (Element clazz : pe.getEnclosedElements()) {
415 // if (clazz.getKind() != ElementKind.CLASS) {
418 w.append(" public ").append(className).append("() {\n");
419 StringBuilder dispatch = new StringBuilder();
421 for (Element method : type.getEnclosedElements()) {
422 On oc = method.getAnnotation(On.class);
424 for (String id : oc.id()) {
426 error("id = " + id + " not found in HTML page.", method);
430 if (pp.tagNameForId(id) == null) {
431 error("id = " + id + " does not exist in the HTML page. Found only " + pp.ids(), method);
435 ExecutableElement ee = (ExecutableElement)method;
436 CharSequence params = wrapParams(ee, id, className, "ev", null);
437 if (!ee.getModifiers().contains(Modifier.STATIC)) {
438 error("@On method has to be static", ee);
442 if (ee.getModifiers().contains(Modifier.PRIVATE)) {
443 error("@On method can't be private", ee);
447 w.append(" OnEvent." + oc.event()).append(".of(").append(cnstnt(id)).
448 append(").perform(new OnDispatch(" + dispatchCnt + "));\n");
451 append(" case ").append(dispatchCnt).append(": ").
452 append(type.getSimpleName().toString()).
453 append('.').append(ee.getSimpleName()).append("(").
455 append("); break;\n");
462 if (dispatchCnt > 0) {
463 w.append("class OnDispatch implements OnHandler {\n");
464 w.append(" private final int dispatch;\n");
465 w.append(" OnDispatch(int d) { dispatch = d; }\n");
466 w.append(" public void onEvent(Object ev) {\n");
467 w.append(" switch (dispatch) {\n");
480 public Iterable<? extends Completion> getCompletions(
481 Element element, AnnotationMirror annotation,
482 ExecutableElement member, String userText
484 if (!userText.startsWith("\"")) {
485 return Collections.emptyList();
488 Element cls = findClass(element);
489 Page p = cls.getAnnotation(Page.class);
490 String pkg = findPkgName(cls);
493 InputStream is = openStream(pkg, p.xhtml());
494 pp = ProcessPage.readPage(is);
496 } catch (IOException iOException) {
497 return Collections.emptyList();
500 List<Completion> cc = new ArrayList<>();
501 userText = userText.substring(1);
502 for (String id : pp.ids()) {
503 if (id.startsWith(userText)) {
504 cc.add(Completions.of("\"" + id + "\"", id));
510 private static Element findClass(Element e) {
514 Page p = e.getAnnotation(Page.class);
518 return e.getEnclosingElement();
521 private boolean generateProperties(
523 Writer w, Prprt[] properties,
524 Collection<String> props,
525 Map<String,Collection<String>> deps,
526 Map<String,Collection<String>> functionDeps
527 ) throws IOException {
529 for (Prprt p : properties) {
531 tn = typeName(where, p);
532 String[] gs = toGetSet(p.name(), tn, p.array());
535 w.write("private KOList<" + tn + "> prop_" + p.name() + " = new KOList<" + tn + ">(\""
537 Collection<String> dependants = deps.get(p.name());
538 if (dependants != null) {
539 for (String depProp : dependants) {
548 dependants = functionDeps.get(p.name());
549 if (dependants != null) {
550 w.write(".onChange(new Runnable() { public void run() {\n");
551 for (String call : dependants) {
558 w.write("public java.util.List<" + tn + "> " + gs[0] + "() {\n");
559 w.write(" if (locked) throw new IllegalStateException();\n");
560 w.write(" prop_" + p.name() + ".assign(ko);\n");
561 w.write(" return prop_" + p.name() + ";\n");
564 w.write("private " + tn + " prop_" + p.name() + ";\n");
565 w.write("public " + tn + " " + gs[0] + "() {\n");
566 w.write(" if (locked) throw new IllegalStateException();\n");
567 w.write(" return prop_" + p.name() + ";\n");
569 w.write("public void " + gs[1] + "(" + tn + " v) {\n");
570 w.write(" if (locked) throw new IllegalStateException();\n");
571 w.write(" prop_" + p.name() + " = v;\n");
572 w.write(" if (ko != null) {\n");
573 w.write(" ko.valueHasMutated(\"" + p.name() + "\");\n");
574 Collection<String> dependants = deps.get(p.name());
575 if (dependants != null) {
576 for (String depProp : dependants) {
577 w.write(" ko.valueHasMutated(\"" + depProp + "\");\n");
581 dependants = functionDeps.get(p.name());
582 if (dependants != null) {
583 for (String call : dependants) {
598 private boolean generateComputedProperties(
599 Writer w, Prprt[] fixedProps,
600 Collection<? extends Element> arr, Collection<String> props,
601 Map<String,Collection<String>> deps
602 ) throws IOException {
604 for (Element e : arr) {
605 if (e.getKind() != ElementKind.METHOD) {
608 if (e.getAnnotation(ComputedProperty.class) == null) {
611 ExecutableElement ee = (ExecutableElement)e;
612 final TypeMirror rt = ee.getReturnType();
613 final Types tu = processingEnv.getTypeUtils();
614 TypeMirror ert = tu.erasure(rt);
615 String tn = fqn(ert, ee);
616 boolean array = false;
617 if (tn.equals("java.util.List")) {
621 final String sn = ee.getSimpleName().toString();
622 String[] gs = toGetSet(sn, tn, array);
624 w.write("public " + tn + " " + gs[0] + "() {\n");
625 w.write(" if (locked) throw new IllegalStateException();\n");
627 for (VariableElement pe : ee.getParameters()) {
628 final String dn = pe.getSimpleName().toString();
630 if (!verifyPropName(pe, dn, fixedProps)) {
634 final String dt = fqn(pe.asType(), ee);
635 String[] call = toGetSet(dn, dt, false);
636 w.write(" " + dt + " arg" + (++arg) + " = ");
637 w.write(call[0] + "();\n");
639 Collection<String> depends = deps.get(dn);
640 if (depends == null) {
641 depends = new LinkedHashSet<>();
642 deps.put(dn, depends);
647 w.write(" locked = true;\n");
648 w.write(" return " + fqn(ee.getEnclosingElement().asType(), ee) + '.' + e.getSimpleName() + "(");
650 for (int i = 1; i <= arg; i++) {
656 w.write(" } finally {\n");
657 w.write(" locked = false;\n");
661 props.add(e.getSimpleName().toString());
670 private static String[] toGetSet(String name, String type, boolean array) {
671 String n = Character.toUpperCase(name.charAt(0)) + name.substring(1);
672 String bck2brwsrType = "L" + type.replace('.', '_') + "_2";
673 if ("int".equals(type)) {
676 if ("double".equals(type)) {
680 if ("boolean".equals(type)) {
684 final String nu = n.replace('.', '_');
686 return new String[] {
689 "get" + nu + "__Ljava_util_List_2",
696 pref + nu + "__" + bck2brwsrType,
697 "set" + nu + "__V" + bck2brwsrType
701 private String typeName(Element where, Prprt p) {
703 boolean[] isModel = { false };
704 boolean[] isEnum = { false };
705 boolean isPrimitive[] = { false };
706 ret = checkType(p, isModel, isEnum, isPrimitive);
708 String bt = findBoxedType(ret);
716 private static String findBoxedType(String ret) {
717 if (ret.equals("boolean")) {
718 return Boolean.class.getName();
720 if (ret.equals("byte")) {
721 return Byte.class.getName();
723 if (ret.equals("short")) {
724 return Short.class.getName();
726 if (ret.equals("char")) {
727 return Character.class.getName();
729 if (ret.equals("int")) {
730 return Integer.class.getName();
732 if (ret.equals("long")) {
733 return Long.class.getName();
735 if (ret.equals("float")) {
736 return Float.class.getName();
738 if (ret.equals("double")) {
739 return Double.class.getName();
744 private boolean verifyPropName(Element e, String propName, Prprt[] existingProps) {
745 StringBuilder sb = new StringBuilder();
747 for (Prprt Prprt : existingProps) {
748 if (Prprt.name().equals(propName)) {
753 sb.append(Prprt.name());
758 propName + " is not one of known properties: " + sb
764 private static String findPkgName(Element e) {
766 if (e.getKind() == ElementKind.PACKAGE) {
767 return ((PackageElement)e).getQualifiedName().toString();
769 e = e.getEnclosingElement();
773 private boolean generateFunctions(
774 Element clazz, StringWriter body, String className,
775 List<? extends Element> enclosedElements, List<String> functions
777 for (Element m : enclosedElements) {
778 if (m.getKind() != ElementKind.METHOD) {
781 ExecutableElement e = (ExecutableElement)m;
782 OnFunction onF = e.getAnnotation(OnFunction.class);
786 if (!e.getModifiers().contains(Modifier.STATIC)) {
787 error("@OnFunction method needs to be static", e);
790 if (e.getModifiers().contains(Modifier.PRIVATE)) {
791 error("@OnFunction method cannot be private", e);
794 if (e.getReturnType().getKind() != TypeKind.VOID) {
795 error("@OnFunction method should return void", e);
798 String n = e.getSimpleName().toString();
799 body.append("private void ").append(n).append("(Object data, Object ev) {\n");
800 body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
801 body.append(wrapParams(e, null, className, "ev", "data"));
806 functions.add(n + "__VLjava_lang_Object_2Ljava_lang_Object_2");
811 private boolean generateOnChange(Element clazz, Map<String,Collection<String>> propDeps,
812 Prprt[] properties, String className,
813 Map<String, Collection<String>> functionDeps
815 for (Element m : clazz.getEnclosedElements()) {
816 if (m.getKind() != ElementKind.METHOD) {
819 ExecutableElement e = (ExecutableElement) m;
820 OnPropertyChange onPC = e.getAnnotation(OnPropertyChange.class);
824 for (String pn : onPC.value()) {
825 if (findPrprt(properties, pn) == null && findDerivedFrom(propDeps, pn).isEmpty()) {
826 error("No Prprt named '" + pn + "' in the model", clazz);
830 if (!e.getModifiers().contains(Modifier.STATIC)) {
831 error("@OnPrprtChange method needs to be static", e);
834 if (e.getModifiers().contains(Modifier.PRIVATE)) {
835 error("@OnPrprtChange method cannot be private", e);
838 if (e.getReturnType().getKind() != TypeKind.VOID) {
839 error("@OnPrprtChange method should return void", e);
842 String n = e.getSimpleName().toString();
845 for (String pn : onPC.value()) {
846 StringBuilder call = new StringBuilder();
847 call.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
848 call.append(wrapPropName(e, className, "name", pn));
851 Collection<String> change = functionDeps.get(pn);
852 if (change == null) {
853 change = new ArrayList<>();
854 functionDeps.put(pn, change);
856 change.add(call.toString());
857 for (String dpn : findDerivedFrom(propDeps, pn)) {
858 change = functionDeps.get(dpn);
859 if (change == null) {
860 change = new ArrayList<>();
861 functionDeps.put(dpn, change);
863 change.add(call.toString());
870 private boolean generateReceive(
871 Element clazz, StringWriter body, String className,
872 List<? extends Element> enclosedElements, List<String> functions
874 for (Element m : enclosedElements) {
875 if (m.getKind() != ElementKind.METHOD) {
878 ExecutableElement e = (ExecutableElement)m;
879 OnReceive onR = e.getAnnotation(OnReceive.class);
883 if (!e.getModifiers().contains(Modifier.STATIC)) {
884 error("@OnReceive method needs to be static", e);
887 if (e.getModifiers().contains(Modifier.PRIVATE)) {
888 error("@OnReceive method cannot be private", e);
891 if (e.getReturnType().getKind() != TypeKind.VOID) {
892 error("@OnReceive method should return void", e);
895 String modelClass = null;
896 boolean expectsList = false;
897 List<String> args = new ArrayList<>();
899 for (VariableElement ve : e.getParameters()) {
900 TypeMirror modelType = null;
901 if (ve.asType().toString().equals(className)) {
902 args.add(className + ".this");
903 } else if (isModel(ve.asType())) {
904 modelType = ve.asType();
905 } else if (ve.asType().getKind() == TypeKind.ARRAY) {
906 modelType = ((ArrayType)ve.asType()).getComponentType();
909 if (modelType != null) {
910 if (modelClass != null) {
911 error("There can be only one model class among arguments", e);
913 modelClass = modelType.toString();
923 if (modelClass == null) {
924 error("The method needs to have one @Model class as parameter", e);
926 String n = e.getSimpleName().toString();
927 body.append("public void ").append(n).append("(");
928 StringBuilder assembleURL = new StringBuilder();
929 String jsonpVarName = null;
932 boolean skipJSONP = onR.jsonp().isEmpty();
933 for (String p : findParamNames(e, onR.url(), assembleURL)) {
934 if (!skipJSONP && p.equals(onR.jsonp())) {
940 body.append("String ").append(p);
945 "Name of jsonp attribute ('" + onR.jsonp() +
946 "') is not used in url attribute '" + onR.url() + "'", e
950 body.append(") {\n");
951 body.append(" final Object[] result = { null };\n");
953 " class ProcessResult implements Runnable {\n" +
955 " public void run() {\n" +
956 " Object value = result[0];\n");
958 " " + modelClass + "[] arr;\n");
960 " if (value instanceof Object[]) {\n" +
961 " Object[] data = ((Object[])value);\n" +
962 " arr = new " + modelClass + "[data.length];\n" +
963 " for (int i = 0; i < data.length; i++) {\n" +
964 " arr[i] = new " + modelClass + "(data[i]);\n" +
967 " arr = new " + modelClass + "[1];\n" +
968 " arr[0] = new " + modelClass + "(value);\n" +
972 body.append(clazz.getSimpleName()).append(".").append(n).append("(");
974 for (String arg : args) {
985 body.append(" ProcessResult pr = new ProcessResult();\n");
986 if (jsonpVarName != null) {
987 body.append(" String ").append(jsonpVarName).
988 append(" = org.apidesign.bck2brwsr.htmlpage.ConvertTypes.createJSONP(result, pr);\n");
990 body.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.loadJSON(\n ");
991 body.append(assembleURL);
992 body.append(", result, pr, ").append(jsonpVarName).append("\n );\n");
993 // body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
994 // body.append(wrapParams(e, null, className, "ev", "data"));
995 // body.append(");\n");
1001 private CharSequence wrapParams(
1002 ExecutableElement ee, String id, String className, String evName, String dataName
1004 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
1005 StringBuilder params = new StringBuilder();
1006 boolean first = true;
1007 for (VariableElement ve : ee.getParameters()) {
1009 params.append(", ");
1012 String toCall = null;
1013 if (ve.asType() == stringType) {
1014 if (ve.getSimpleName().contentEquals("id")) {
1015 params.append('"').append(id).append('"');
1018 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toString(";
1020 if (ve.asType().getKind() == TypeKind.DOUBLE) {
1021 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toDouble(";
1023 if (ve.asType().getKind() == TypeKind.INT) {
1024 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toInt(";
1026 if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {
1027 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toModel(" + ve.asType() + ".class, ";
1030 if (toCall != null) {
1031 params.append(toCall);
1032 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {
1033 params.append(dataName);
1034 params.append(", null");
1036 if (evName == null) {
1037 final StringBuilder sb = new StringBuilder();
1038 sb.append("Unexpected string parameter name.");
1039 if (dataName != null) {
1040 sb.append(" Try \"").append(dataName).append("\"");
1042 error(sb.toString(), ee);
1044 params.append(evName);
1045 params.append(", \"");
1046 params.append(ve.getSimpleName().toString());
1047 params.append("\"");
1052 String rn = fqn(ve.asType(), ee);
1053 int last = rn.lastIndexOf('.');
1055 rn = rn.substring(last + 1);
1057 if (rn.equals(className)) {
1058 params.append(className).append(".this");
1062 "@On method can only accept String named 'id' or " + className + " arguments",
1070 private CharSequence wrapPropName(
1071 ExecutableElement ee, String className, String propName, String propValue
1073 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
1074 StringBuilder params = new StringBuilder();
1075 boolean first = true;
1076 for (VariableElement ve : ee.getParameters()) {
1078 params.append(", ");
1081 if (ve.asType() == stringType) {
1082 if (propName != null && ve.getSimpleName().contentEquals(propName)) {
1083 params.append('"').append(propValue).append('"');
1085 error("Unexpected string parameter name. Try \"" + propName + "\".", ee);
1089 String rn = fqn(ve.asType(), ee);
1090 int last = rn.lastIndexOf('.');
1092 rn = rn.substring(last + 1);
1094 if (rn.equals(className)) {
1095 params.append(className).append(".this");
1099 "@OnPrprtChange method can only accept String or " + className + " arguments",
1105 private boolean isModel(TypeMirror tm) {
1106 final Element e = processingEnv.getTypeUtils().asElement(tm);
1110 for (Element ch : e.getEnclosedElements()) {
1111 if (ch.getKind() == ElementKind.METHOD) {
1112 ExecutableElement ee = (ExecutableElement)ch;
1113 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {
1118 return models.values().contains(e.getSimpleName().toString());
1121 private void writeStringArray(List<String> strings, Writer w) throws IOException {
1122 w.write("new String[] {\n");
1124 for (String n : strings) {
1129 w.write(" \"" + n + "\"");
1136 private void writeToString(Prprt[] props, Writer w) throws IOException {
1137 w.write(" public String toString() {\n");
1138 w.write(" StringBuilder sb = new StringBuilder();\n");
1139 w.write(" sb.append('{');\n");
1141 for (Prprt p : props) {
1143 w.append(" sb.append(\"" + p.name() + ": \");\n");
1144 w.append(" sb.append(org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toJSON(prop_");
1145 w.append(p.name()).append("));\n");
1146 sep = " sb.append(',');\n";
1148 w.write(" sb.append('}');\n");
1149 w.write(" return sb.toString();\n");
1152 private void writeClone(String className, Prprt[] props, Writer w) throws IOException {
1153 w.write(" public " + className + " clone() {\n");
1154 w.write(" " + className + " ret = new " + className + "();\n");
1155 for (Prprt p : props) {
1157 boolean isModel[] = { false };
1158 boolean isEnum[] = { false };
1159 boolean isPrimitive[] = { false };
1160 checkType(p, isModel, isEnum, isPrimitive);
1162 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ";\n");
1165 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
1167 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
1171 w.write(" return ret;\n");
1175 private String inPckName(Element e) {
1176 StringBuilder sb = new StringBuilder();
1177 while (e.getKind() != ElementKind.PACKAGE) {
1178 if (sb.length() == 0) {
1179 sb.append(e.getSimpleName());
1182 sb.insert(0, e.getSimpleName());
1184 e = e.getEnclosingElement();
1186 return sb.toString();
1189 private String fqn(TypeMirror pt, Element relative) {
1190 if (pt.getKind() == TypeKind.ERROR) {
1191 final Elements eu = processingEnv.getElementUtils();
1192 PackageElement pckg = eu.getPackageOf(relative);
1193 return pckg.getQualifiedName() + "." + pt.toString();
1195 return pt.toString();
1198 private String checkType(Prprt p, boolean[] isModel, boolean[] isEnum, boolean[] isPrimitive) {
1201 String ret = p.typeName(processingEnv);
1202 TypeElement e = processingEnv.getElementUtils().getTypeElement(ret);
1206 isPrimitive[0] = false;
1210 } catch (MirroredTypeException ex) {
1211 tm = ex.getTypeMirror();
1213 tm = processingEnv.getTypeUtils().erasure(tm);
1214 isPrimitive[0] = tm.getKind().isPrimitive();
1215 final Element e = processingEnv.getTypeUtils().asElement(tm);
1216 final Model m = e == null ? null : e.getAnnotation(Model.class);
1220 ret = findPkgName(e) + '.' + m.className();
1222 models.put(e, m.className());
1223 } else if (findModelForMthd(e)) {
1224 ret = ((TypeElement)e).getQualifiedName().toString();
1227 ret = tm.toString();
1229 TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();
1230 enm = processingEnv.getTypeUtils().erasure(enm);
1231 isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);
1235 private static boolean findModelForMthd(Element clazz) {
1236 if (clazz == null) {
1239 for (Element e : clazz.getEnclosedElements()) {
1240 if (e.getKind() == ElementKind.METHOD) {
1241 ExecutableElement ee = (ExecutableElement)e;
1243 ee.getSimpleName().contentEquals("modelFor") &&
1244 ee.getParameters().isEmpty()
1253 private Iterable<String> findParamNames(Element e, String url, StringBuilder assembleURL) {
1254 List<String> params = new ArrayList<>();
1256 for (int pos = 0; ;) {
1257 int next = url.indexOf('{', pos);
1259 assembleURL.append('"')
1260 .append(url.substring(pos))
1264 int close = url.indexOf('}', next);
1266 error("Unbalanced '{' and '}' in " + url, e);
1269 final String paramName = url.substring(next + 1, close);
1270 params.add(paramName);
1271 assembleURL.append('"')
1272 .append(url.substring(pos, next))
1273 .append("\" + ").append(paramName).append(" + ");
1278 private static Prprt findPrprt(Prprt[] properties, String propName) {
1279 for (Prprt p : properties) {
1280 if (propName.equals(p.name())) {
1287 private boolean isPrimitive(String type) {
1289 "int".equals(type) ||
1290 "double".equals(type) ||
1291 "long".equals(type) ||
1292 "short".equals(type) ||
1293 "byte".equals(type) ||
1294 "float".equals(type);
1297 private static Collection<String> findDerivedFrom(Map<String, Collection<String>> propsDeps, String derivedProp) {
1298 Set<String> names = new HashSet<>();
1299 for (Map.Entry<String, Collection<String>> e : propsDeps.entrySet()) {
1300 if (e.getValue().contains(derivedProp)) {
1301 names.add(e.getKey());
1307 private Prprt[] createProps(Element e, Property[] arr) {
1308 Prprt[] ret = Prprt.wrap(processingEnv, e, arr);
1309 Prprt[] prev = verify.put(e, ret);
1311 error("Two sets of properties for ", e);
1316 private static class Prprt {
1317 private final Element e;
1318 private final AnnotationMirror tm;
1319 private final Property p;
1321 public Prprt(Element e, AnnotationMirror tm, Property p) {
1335 String typeName(ProcessingEnvironment env) {
1337 return p.type().getName();
1338 } catch (IncompleteAnnotationException | AnnotationTypeMismatchException ex) {
1339 for (Object v : getAnnoValues(env)) {
1340 String s = v.toString().replace(" ", "");
1341 if (s.startsWith("type=") && s.endsWith(".class")) {
1342 return s.substring(5, s.length() - 6);
1350 static Prprt[] wrap(ProcessingEnvironment pe, Element e, Property[] arr) {
1351 if (arr.length == 0) {
1352 return new Prprt[0];
1355 if (e.getKind() != ElementKind.CLASS) {
1356 throw new IllegalStateException("" + e.getKind());
1358 TypeElement te = (TypeElement)e;
1359 List<? extends AnnotationValue> val = null;
1360 for (AnnotationMirror an : te.getAnnotationMirrors()) {
1361 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : an.getElementValues().entrySet()) {
1362 if (entry.getKey().getSimpleName().contentEquals("properties")) {
1363 val = (List)entry.getValue().getValue();
1368 if (val == null || val.size() != arr.length) {
1369 pe.getMessager().printMessage(Diagnostic.Kind.ERROR, "" + val, e);
1370 return new Prprt[0];
1372 Prprt[] ret = new Prprt[arr.length];
1373 BIG: for (int i = 0; i < ret.length; i++) {
1374 AnnotationMirror am = (AnnotationMirror)val.get(i).getValue();
1375 ret[i] = new Prprt(e, am, arr[i]);
1381 private List<? extends Object> getAnnoValues(ProcessingEnvironment pe) {
1383 Class<?> trees = Class.forName("com.sun.tools.javac.api.JavacTrees");
1384 Method m = trees.getMethod("instance", ProcessingEnvironment.class);
1385 Object instance = m.invoke(null, pe);
1386 m = instance.getClass().getMethod("getPath", Element.class, AnnotationMirror.class);
1387 Object path = m.invoke(instance, e, tm);
1388 m = path.getClass().getMethod("getLeaf");
1389 Object leaf = m.invoke(path);
1390 m = leaf.getClass().getMethod("getArguments");
1391 return (List)m.invoke(leaf);
1392 } catch (Exception ex) {
1393 return Collections.emptyList();