Fixed static calculator full obfuscation after introduction o Exported annotation
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.reflect.Method;
27 import java.util.ArrayList;
28 import java.util.Collection;
29 import java.util.Collections;
30 import java.util.HashMap;
31 import java.util.HashSet;
32 import java.util.LinkedHashSet;
33 import java.util.List;
36 import java.util.WeakHashMap;
37 import javax.annotation.processing.AbstractProcessor;
38 import javax.annotation.processing.Completion;
39 import javax.annotation.processing.Completions;
40 import javax.annotation.processing.ProcessingEnvironment;
41 import javax.annotation.processing.Processor;
42 import javax.annotation.processing.RoundEnvironment;
43 import javax.annotation.processing.SupportedAnnotationTypes;
44 import javax.lang.model.element.AnnotationMirror;
45 import javax.lang.model.element.AnnotationValue;
46 import javax.lang.model.element.Element;
47 import javax.lang.model.element.ElementKind;
48 import javax.lang.model.element.ExecutableElement;
49 import javax.lang.model.element.Modifier;
50 import javax.lang.model.element.PackageElement;
51 import javax.lang.model.element.TypeElement;
52 import javax.lang.model.element.VariableElement;
53 import javax.lang.model.type.ArrayType;
54 import javax.lang.model.type.MirroredTypeException;
55 import javax.lang.model.type.TypeKind;
56 import javax.lang.model.type.TypeMirror;
57 import javax.lang.model.util.Elements;
58 import javax.lang.model.util.Types;
59 import javax.tools.Diagnostic;
60 import javax.tools.FileObject;
61 import javax.tools.StandardLocation;
62 import org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty;
63 import org.apidesign.bck2brwsr.htmlpage.api.Model;
64 import org.apidesign.bck2brwsr.htmlpage.api.On;
65 import org.apidesign.bck2brwsr.htmlpage.api.OnFunction;
66 import org.apidesign.bck2brwsr.htmlpage.api.OnPropertyChange;
67 import org.apidesign.bck2brwsr.htmlpage.api.OnReceive;
68 import org.apidesign.bck2brwsr.htmlpage.api.Page;
69 import org.apidesign.bck2brwsr.htmlpage.api.Property;
70 import org.openide.util.lookup.ServiceProvider;
72 /** Annotation processor to process an XHTML page and generate appropriate
75 * @author Jaroslav Tulach <jtulach@netbeans.org>
77 @ServiceProvider(service=Processor.class)
78 @SupportedAnnotationTypes({
79 "org.apidesign.bck2brwsr.htmlpage.api.Model",
80 "org.apidesign.bck2brwsr.htmlpage.api.Page",
81 "org.apidesign.bck2brwsr.htmlpage.api.OnFunction",
82 "org.apidesign.bck2brwsr.htmlpage.api.OnReceive",
83 "org.apidesign.bck2brwsr.htmlpage.api.OnPropertyChange",
84 "org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty",
85 "org.apidesign.bck2brwsr.htmlpage.api.On"
87 public final class PageProcessor extends AbstractProcessor {
88 private final Map<Element,String> models = new WeakHashMap<>();
89 private final Map<Element,Prprt[]> verify = new WeakHashMap<>();
91 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
93 for (Element e : roundEnv.getElementsAnnotatedWith(Model.class)) {
94 if (!processModel(e)) {
98 for (Element e : roundEnv.getElementsAnnotatedWith(Page.class)) {
99 if (!processPage(e)) {
103 if (roundEnv.processingOver()) {
105 for (Map.Entry<Element, Prprt[]> entry : verify.entrySet()) {
106 TypeElement te = (TypeElement)entry.getKey();
107 String fqn = processingEnv.getElementUtils().getBinaryName(te).toString();
108 Element finalElem = processingEnv.getElementUtils().getTypeElement(fqn);
109 if (finalElem == null) {
113 Model m = finalElem.getAnnotation(Model.class);
115 props = Prprt.wrap(processingEnv, finalElem, m.properties());
117 Page p = finalElem.getAnnotation(Page.class);
118 props = Prprt.wrap(processingEnv, finalElem, p.properties());
120 for (Prprt p : props) {
121 boolean[] isModel = { false };
122 boolean[] isEnum = { false };
123 boolean[] isPrimitive = { false };
124 String t = checkType(p, isModel, isEnum, isPrimitive);
128 if (isPrimitive[0]) {
134 if ("java.lang.String".equals(t)) {
137 error("The type " + t + " should be defined by @Model annotation", entry.getKey());
145 private InputStream openStream(String pkg, String name) throws IOException {
147 FileObject fo = processingEnv.getFiler().getResource(
148 StandardLocation.SOURCE_PATH, pkg, name);
149 return fo.openInputStream();
150 } catch (IOException ex) {
151 return processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name).openInputStream();
155 private void error(String msg, Element e) {
156 processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, msg, e);
159 private boolean processModel(Element e) {
161 Model m = e.getAnnotation(Model.class);
165 String pkg = findPkgName(e);
167 String className = m.className();
168 models.put(e, className);
170 StringWriter body = new StringWriter();
171 List<String> propsGetSet = new ArrayList<>();
172 List<String> functions = new ArrayList<>();
173 Map<String, Collection<String>> propsDeps = new HashMap<>();
174 Map<String, Collection<String>> functionDeps = new HashMap<>();
175 Prprt[] props = createProps(e, m.properties());
177 if (!generateComputedProperties(body, props, e.getEnclosedElements(), propsGetSet, propsDeps)) {
180 if (!generateOnChange(e, propsDeps, props, className, functionDeps)) {
183 if (!generateProperties(e, body, props, propsGetSet, propsDeps, functionDeps)) {
186 if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {
189 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
190 w = new OutputStreamWriter(java.openOutputStream());
192 w.append("package " + pkg + ";\n");
193 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
194 w.append("import org.apidesign.bck2brwsr.htmlpage.KOList;\n");
195 w.append("import org.apidesign.bck2brwsr.core.Exported;\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("import org.apidesign.bck2brwsr.core.Exported;\n");
348 w.append("final class ").append(className).append(" {\n");
349 w.append(" private boolean locked;\n");
350 if (!initializeOnClick(className, (TypeElement) e, w, pp)) {
353 if (pp != null) for (String id : pp.ids()) {
354 String tag = pp.tagNameForId(id);
355 String type = type(tag);
356 w.append(" ").append("public final ").
357 append(type).append(' ').append(cnstnt(id)).append(" = new ").
358 append(type).append("(\"").append(id).append("\");\n");
361 w.append(" private org.apidesign.bck2brwsr.htmlpage.Knockout ko;\n");
362 w.append(body.toString());
363 if (!propsGetSet.isEmpty()) {
364 w.write("public " + className + " applyBindings() {\n");
365 w.write(" ko = org.apidesign.bck2brwsr.htmlpage.Knockout.applyBindings(");
366 w.write(className + ".class, this, ");
367 writeStringArray(propsGetSet, w);
369 writeStringArray(functions, w);
370 w.write(");\n return this;\n}\n");
372 w.write("public void triggerEvent(Element e, OnEvent ev) {\n");
373 w.write(" org.apidesign.bck2brwsr.htmlpage.Knockout.triggerEvent(e.getId(), ev.getElementPropertyName());\n");
380 } catch (IOException ex) {
381 error("Can't create " + className + ".java", e);
387 private static String type(String tag) {
388 if (tag.equals("title")) {
391 if (tag.equals("button")) {
394 if (tag.equals("input")) {
397 if (tag.equals("canvas")) {
400 if (tag.equals("img")) {
406 private static String cnstnt(String id) {
407 return id.replace('.', '_').replace('-', '_');
410 private boolean initializeOnClick(
411 String className, TypeElement type, Writer w, ProcessPage pp
412 ) throws IOException {
414 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
415 { //for (Element clazz : pe.getEnclosedElements()) {
416 // if (clazz.getKind() != ElementKind.CLASS) {
419 w.append(" public ").append(className).append("() {\n");
420 StringBuilder dispatch = new StringBuilder();
422 for (Element method : type.getEnclosedElements()) {
423 On oc = method.getAnnotation(On.class);
425 for (String id : oc.id()) {
427 error("id = " + id + " not found in HTML page.", method);
431 if (pp.tagNameForId(id) == null) {
432 error("id = " + id + " does not exist in the HTML page. Found only " + pp.ids(), method);
436 ExecutableElement ee = (ExecutableElement)method;
437 CharSequence params = wrapParams(ee, id, className, "ev", null);
438 if (!ee.getModifiers().contains(Modifier.STATIC)) {
439 error("@On method has to be static", ee);
443 if (ee.getModifiers().contains(Modifier.PRIVATE)) {
444 error("@On method can't be private", ee);
448 w.append(" OnEvent." + oc.event()).append(".of(").append(cnstnt(id)).
449 append(").perform(new OnDispatch(" + dispatchCnt + "));\n");
452 append(" case ").append(dispatchCnt).append(": ").
453 append(type.getSimpleName().toString()).
454 append('.').append(ee.getSimpleName()).append("(").
456 append("); break;\n");
463 if (dispatchCnt > 0) {
464 w.append("class OnDispatch implements OnHandler {\n");
465 w.append(" private final int dispatch;\n");
466 w.append(" OnDispatch(int d) { dispatch = d; }\n");
467 w.append(" public void onEvent(Object ev) {\n");
468 w.append(" switch (dispatch) {\n");
481 public Iterable<? extends Completion> getCompletions(
482 Element element, AnnotationMirror annotation,
483 ExecutableElement member, String userText
485 if (!userText.startsWith("\"")) {
486 return Collections.emptyList();
489 Element cls = findClass(element);
490 Page p = cls.getAnnotation(Page.class);
491 String pkg = findPkgName(cls);
494 InputStream is = openStream(pkg, p.xhtml());
495 pp = ProcessPage.readPage(is);
497 } catch (IOException iOException) {
498 return Collections.emptyList();
501 List<Completion> cc = new ArrayList<>();
502 userText = userText.substring(1);
503 for (String id : pp.ids()) {
504 if (id.startsWith(userText)) {
505 cc.add(Completions.of("\"" + id + "\"", id));
511 private static Element findClass(Element e) {
515 Page p = e.getAnnotation(Page.class);
519 return e.getEnclosingElement();
522 private boolean generateProperties(
524 Writer w, Prprt[] properties,
525 Collection<String> props,
526 Map<String,Collection<String>> deps,
527 Map<String,Collection<String>> functionDeps
528 ) throws IOException {
530 for (Prprt p : properties) {
532 tn = typeName(where, p);
533 String[] gs = toGetSet(p.name(), tn, p.array());
536 w.write("private KOList<" + tn + "> prop_" + p.name() + " = new KOList<" + tn + ">(\""
538 Collection<String> dependants = deps.get(p.name());
539 if (dependants != null) {
540 for (String depProp : dependants) {
549 dependants = functionDeps.get(p.name());
550 if (dependants != null) {
551 w.write(".onChange(new Runnable() { public void run() {\n");
552 for (String call : dependants) {
559 w.write("@Exported\n");
560 w.write("public java.util.List<" + tn + "> " + gs[0] + "() {\n");
561 w.write(" if (locked) throw new IllegalStateException();\n");
562 w.write(" prop_" + p.name() + ".assign(ko);\n");
563 w.write(" return prop_" + p.name() + ";\n");
566 w.write("private " + tn + " prop_" + p.name() + ";\n");
567 w.write("@Exported\n");
568 w.write("public " + tn + " " + gs[0] + "() {\n");
569 w.write(" if (locked) throw new IllegalStateException();\n");
570 w.write(" return prop_" + p.name() + ";\n");
572 w.write("@Exported\n");
573 w.write("public void " + gs[1] + "(" + tn + " v) {\n");
574 w.write(" if (locked) throw new IllegalStateException();\n");
575 w.write(" prop_" + p.name() + " = v;\n");
576 w.write(" if (ko != null) {\n");
577 w.write(" ko.valueHasMutated(\"" + p.name() + "\");\n");
578 Collection<String> dependants = deps.get(p.name());
579 if (dependants != null) {
580 for (String depProp : dependants) {
581 w.write(" ko.valueHasMutated(\"" + depProp + "\");\n");
585 dependants = functionDeps.get(p.name());
586 if (dependants != null) {
587 for (String call : dependants) {
602 private boolean generateComputedProperties(
603 Writer w, Prprt[] fixedProps,
604 Collection<? extends Element> arr, Collection<String> props,
605 Map<String,Collection<String>> deps
606 ) throws IOException {
608 for (Element e : arr) {
609 if (e.getKind() != ElementKind.METHOD) {
612 if (e.getAnnotation(ComputedProperty.class) == null) {
615 ExecutableElement ee = (ExecutableElement)e;
616 final TypeMirror rt = ee.getReturnType();
617 final Types tu = processingEnv.getTypeUtils();
618 TypeMirror ert = tu.erasure(rt);
619 String tn = fqn(ert, ee);
620 boolean array = false;
621 if (tn.equals("java.util.List")) {
625 final String sn = ee.getSimpleName().toString();
626 String[] gs = toGetSet(sn, tn, array);
628 w.write("@Exported\n");
629 w.write("public " + tn + " " + gs[0] + "() {\n");
630 w.write(" if (locked) throw new IllegalStateException();\n");
632 for (VariableElement pe : ee.getParameters()) {
633 final String dn = pe.getSimpleName().toString();
635 if (!verifyPropName(pe, dn, fixedProps)) {
639 final String dt = fqn(pe.asType(), ee);
640 String[] call = toGetSet(dn, dt, false);
641 w.write(" " + dt + " arg" + (++arg) + " = ");
642 w.write(call[0] + "();\n");
644 Collection<String> depends = deps.get(dn);
645 if (depends == null) {
646 depends = new LinkedHashSet<>();
647 deps.put(dn, depends);
652 w.write(" locked = true;\n");
653 w.write(" return " + fqn(ee.getEnclosingElement().asType(), ee) + '.' + e.getSimpleName() + "(");
655 for (int i = 1; i <= arg; i++) {
661 w.write(" } finally {\n");
662 w.write(" locked = false;\n");
666 props.add(e.getSimpleName().toString());
675 private static String[] toGetSet(String name, String type, boolean array) {
676 String n = Character.toUpperCase(name.charAt(0)) + name.substring(1);
677 String bck2brwsrType = "L" + type.replace('.', '_') + "_2";
678 if ("int".equals(type)) {
681 if ("double".equals(type)) {
685 if ("boolean".equals(type)) {
689 final String nu = n.replace('.', '_');
691 return new String[] {
694 "get" + nu + "__Ljava_util_List_2",
701 pref + nu + "__" + bck2brwsrType,
702 "set" + nu + "__V" + bck2brwsrType
706 private String typeName(Element where, Prprt p) {
708 boolean[] isModel = { false };
709 boolean[] isEnum = { false };
710 boolean isPrimitive[] = { false };
711 ret = checkType(p, isModel, isEnum, isPrimitive);
713 String bt = findBoxedType(ret);
721 private static String findBoxedType(String ret) {
722 if (ret.equals("boolean")) {
723 return Boolean.class.getName();
725 if (ret.equals("byte")) {
726 return Byte.class.getName();
728 if (ret.equals("short")) {
729 return Short.class.getName();
731 if (ret.equals("char")) {
732 return Character.class.getName();
734 if (ret.equals("int")) {
735 return Integer.class.getName();
737 if (ret.equals("long")) {
738 return Long.class.getName();
740 if (ret.equals("float")) {
741 return Float.class.getName();
743 if (ret.equals("double")) {
744 return Double.class.getName();
749 private boolean verifyPropName(Element e, String propName, Prprt[] existingProps) {
750 StringBuilder sb = new StringBuilder();
752 for (Prprt Prprt : existingProps) {
753 if (Prprt.name().equals(propName)) {
758 sb.append(Prprt.name());
763 propName + " is not one of known properties: " + sb
769 private static String findPkgName(Element e) {
771 if (e.getKind() == ElementKind.PACKAGE) {
772 return ((PackageElement)e).getQualifiedName().toString();
774 e = e.getEnclosingElement();
778 private boolean generateFunctions(
779 Element clazz, StringWriter body, String className,
780 List<? extends Element> enclosedElements, List<String> functions
782 for (Element m : enclosedElements) {
783 if (m.getKind() != ElementKind.METHOD) {
786 ExecutableElement e = (ExecutableElement)m;
787 OnFunction onF = e.getAnnotation(OnFunction.class);
791 if (!e.getModifiers().contains(Modifier.STATIC)) {
792 error("@OnFunction method needs to be static", e);
795 if (e.getModifiers().contains(Modifier.PRIVATE)) {
796 error("@OnFunction method cannot be private", e);
799 if (e.getReturnType().getKind() != TypeKind.VOID) {
800 error("@OnFunction method should return void", e);
803 String n = e.getSimpleName().toString();
804 body.append("@Exported\n");
805 body.append("private void ").append(n).append("(Object data, Object ev) {\n");
806 body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
807 body.append(wrapParams(e, null, className, "ev", "data"));
812 functions.add(n + "__VLjava_lang_Object_2Ljava_lang_Object_2");
817 private boolean generateOnChange(Element clazz, Map<String,Collection<String>> propDeps,
818 Prprt[] properties, String className,
819 Map<String, Collection<String>> functionDeps
821 for (Element m : clazz.getEnclosedElements()) {
822 if (m.getKind() != ElementKind.METHOD) {
825 ExecutableElement e = (ExecutableElement) m;
826 OnPropertyChange onPC = e.getAnnotation(OnPropertyChange.class);
830 for (String pn : onPC.value()) {
831 if (findPrprt(properties, pn) == null && findDerivedFrom(propDeps, pn).isEmpty()) {
832 error("No Prprt named '" + pn + "' in the model", clazz);
836 if (!e.getModifiers().contains(Modifier.STATIC)) {
837 error("@OnPrprtChange method needs to be static", e);
840 if (e.getModifiers().contains(Modifier.PRIVATE)) {
841 error("@OnPrprtChange method cannot be private", e);
844 if (e.getReturnType().getKind() != TypeKind.VOID) {
845 error("@OnPrprtChange method should return void", e);
848 String n = e.getSimpleName().toString();
851 for (String pn : onPC.value()) {
852 StringBuilder call = new StringBuilder();
853 call.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
854 call.append(wrapPropName(e, className, "name", pn));
857 Collection<String> change = functionDeps.get(pn);
858 if (change == null) {
859 change = new ArrayList<>();
860 functionDeps.put(pn, change);
862 change.add(call.toString());
863 for (String dpn : findDerivedFrom(propDeps, pn)) {
864 change = functionDeps.get(dpn);
865 if (change == null) {
866 change = new ArrayList<>();
867 functionDeps.put(dpn, change);
869 change.add(call.toString());
876 private boolean generateReceive(
877 Element clazz, StringWriter body, String className,
878 List<? extends Element> enclosedElements, List<String> functions
880 for (Element m : enclosedElements) {
881 if (m.getKind() != ElementKind.METHOD) {
884 ExecutableElement e = (ExecutableElement)m;
885 OnReceive onR = e.getAnnotation(OnReceive.class);
889 if (!e.getModifiers().contains(Modifier.STATIC)) {
890 error("@OnReceive method needs to be static", e);
893 if (e.getModifiers().contains(Modifier.PRIVATE)) {
894 error("@OnReceive method cannot be private", e);
897 if (e.getReturnType().getKind() != TypeKind.VOID) {
898 error("@OnReceive method should return void", e);
901 String modelClass = null;
902 boolean expectsList = false;
903 List<String> args = new ArrayList<>();
905 for (VariableElement ve : e.getParameters()) {
906 TypeMirror modelType = null;
907 if (ve.asType().toString().equals(className)) {
908 args.add(className + ".this");
909 } else if (isModel(ve.asType())) {
910 modelType = ve.asType();
911 } else if (ve.asType().getKind() == TypeKind.ARRAY) {
912 modelType = ((ArrayType)ve.asType()).getComponentType();
915 if (modelType != null) {
916 if (modelClass != null) {
917 error("There can be only one model class among arguments", e);
919 modelClass = modelType.toString();
929 if (modelClass == null) {
930 error("The method needs to have one @Model class as parameter", e);
932 String n = e.getSimpleName().toString();
933 body.append("public void ").append(n).append("(");
934 StringBuilder assembleURL = new StringBuilder();
935 String jsonpVarName = null;
938 boolean skipJSONP = onR.jsonp().isEmpty();
939 for (String p : findParamNames(e, onR.url(), assembleURL)) {
940 if (!skipJSONP && p.equals(onR.jsonp())) {
946 body.append("String ").append(p);
951 "Name of jsonp attribute ('" + onR.jsonp() +
952 "') is not used in url attribute '" + onR.url() + "'", e
956 body.append(") {\n");
957 body.append(" final Object[] result = { null };\n");
959 " class ProcessResult implements Runnable {\n" +
961 " public void run() {\n" +
962 " Object value = result[0];\n");
964 " " + modelClass + "[] arr;\n");
966 " if (value instanceof Object[]) {\n" +
967 " Object[] data = ((Object[])value);\n" +
968 " arr = new " + modelClass + "[data.length];\n" +
969 " for (int i = 0; i < data.length; i++) {\n" +
970 " arr[i] = new " + modelClass + "(data[i]);\n" +
973 " arr = new " + modelClass + "[1];\n" +
974 " arr[0] = new " + modelClass + "(value);\n" +
978 body.append(clazz.getSimpleName()).append(".").append(n).append("(");
980 for (String arg : args) {
991 body.append(" ProcessResult pr = new ProcessResult();\n");
992 if (jsonpVarName != null) {
993 body.append(" String ").append(jsonpVarName).
994 append(" = org.apidesign.bck2brwsr.htmlpage.ConvertTypes.createJSONP(result, pr);\n");
996 body.append(" org.apidesign.bck2brwsr.htmlpage.ConvertTypes.loadJSON(\n ");
997 body.append(assembleURL);
998 body.append(", result, pr, ").append(jsonpVarName).append("\n );\n");
999 // body.append(" ").append(clazz.getSimpleName()).append(".").append(n).append("(");
1000 // body.append(wrapParams(e, null, className, "ev", "data"));
1001 // body.append(");\n");
1007 private CharSequence wrapParams(
1008 ExecutableElement ee, String id, String className, String evName, String dataName
1010 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
1011 StringBuilder params = new StringBuilder();
1012 boolean first = true;
1013 for (VariableElement ve : ee.getParameters()) {
1015 params.append(", ");
1018 String toCall = null;
1019 if (ve.asType() == stringType) {
1020 if (ve.getSimpleName().contentEquals("id")) {
1021 params.append('"').append(id).append('"');
1024 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toString(";
1026 if (ve.asType().getKind() == TypeKind.DOUBLE) {
1027 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toDouble(";
1029 if (ve.asType().getKind() == TypeKind.INT) {
1030 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toInt(";
1032 if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {
1033 toCall = "org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toModel(" + ve.asType() + ".class, ";
1036 if (toCall != null) {
1037 params.append(toCall);
1038 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {
1039 params.append(dataName);
1040 params.append(", null");
1042 if (evName == null) {
1043 final StringBuilder sb = new StringBuilder();
1044 sb.append("Unexpected string parameter name.");
1045 if (dataName != null) {
1046 sb.append(" Try \"").append(dataName).append("\"");
1048 error(sb.toString(), ee);
1050 params.append(evName);
1051 params.append(", \"");
1052 params.append(ve.getSimpleName().toString());
1053 params.append("\"");
1058 String rn = fqn(ve.asType(), ee);
1059 int last = rn.lastIndexOf('.');
1061 rn = rn.substring(last + 1);
1063 if (rn.equals(className)) {
1064 params.append(className).append(".this");
1068 "@On method can only accept String named 'id' or " + className + " arguments",
1076 private CharSequence wrapPropName(
1077 ExecutableElement ee, String className, String propName, String propValue
1079 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();
1080 StringBuilder params = new StringBuilder();
1081 boolean first = true;
1082 for (VariableElement ve : ee.getParameters()) {
1084 params.append(", ");
1087 if (ve.asType() == stringType) {
1088 if (propName != null && ve.getSimpleName().contentEquals(propName)) {
1089 params.append('"').append(propValue).append('"');
1091 error("Unexpected string parameter name. Try \"" + propName + "\".", ee);
1095 String rn = fqn(ve.asType(), ee);
1096 int last = rn.lastIndexOf('.');
1098 rn = rn.substring(last + 1);
1100 if (rn.equals(className)) {
1101 params.append(className).append(".this");
1105 "@OnPrprtChange method can only accept String or " + className + " arguments",
1111 private boolean isModel(TypeMirror tm) {
1112 final Element e = processingEnv.getTypeUtils().asElement(tm);
1116 for (Element ch : e.getEnclosedElements()) {
1117 if (ch.getKind() == ElementKind.METHOD) {
1118 ExecutableElement ee = (ExecutableElement)ch;
1119 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {
1124 return models.values().contains(e.getSimpleName().toString());
1127 private void writeStringArray(List<String> strings, Writer w) throws IOException {
1128 w.write("new String[] {\n");
1130 for (String n : strings) {
1135 w.write(" \"" + n + "\"");
1142 private void writeToString(Prprt[] props, Writer w) throws IOException {
1143 w.write(" public String toString() {\n");
1144 w.write(" StringBuilder sb = new StringBuilder();\n");
1145 w.write(" sb.append('{');\n");
1147 for (Prprt p : props) {
1149 w.append(" sb.append(\"" + p.name() + ": \");\n");
1150 w.append(" sb.append(org.apidesign.bck2brwsr.htmlpage.ConvertTypes.toJSON(prop_");
1151 w.append(p.name()).append("));\n");
1152 sep = " sb.append(',');\n";
1154 w.write(" sb.append('}');\n");
1155 w.write(" return sb.toString();\n");
1158 private void writeClone(String className, Prprt[] props, Writer w) throws IOException {
1159 w.write(" public " + className + " clone() {\n");
1160 w.write(" " + className + " ret = new " + className + "();\n");
1161 for (Prprt p : props) {
1163 boolean isModel[] = { false };
1164 boolean isEnum[] = { false };
1165 boolean isPrimitive[] = { false };
1166 checkType(p, isModel, isEnum, isPrimitive);
1168 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ";\n");
1171 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
1173 w.write(" ret.prop_" + p.name() + " = prop_" + p.name() + ".clone();\n");
1177 w.write(" return ret;\n");
1181 private String inPckName(Element e) {
1182 StringBuilder sb = new StringBuilder();
1183 while (e.getKind() != ElementKind.PACKAGE) {
1184 if (sb.length() == 0) {
1185 sb.append(e.getSimpleName());
1188 sb.insert(0, e.getSimpleName());
1190 e = e.getEnclosingElement();
1192 return sb.toString();
1195 private String fqn(TypeMirror pt, Element relative) {
1196 if (pt.getKind() == TypeKind.ERROR) {
1197 final Elements eu = processingEnv.getElementUtils();
1198 PackageElement pckg = eu.getPackageOf(relative);
1199 return pckg.getQualifiedName() + "." + pt.toString();
1201 return pt.toString();
1204 private String checkType(Prprt p, boolean[] isModel, boolean[] isEnum, boolean[] isPrimitive) {
1207 String ret = p.typeName(processingEnv);
1208 TypeElement e = processingEnv.getElementUtils().getTypeElement(ret);
1212 isPrimitive[0] = false;
1216 } catch (MirroredTypeException ex) {
1217 tm = ex.getTypeMirror();
1219 tm = processingEnv.getTypeUtils().erasure(tm);
1220 isPrimitive[0] = tm.getKind().isPrimitive();
1221 final Element e = processingEnv.getTypeUtils().asElement(tm);
1222 final Model m = e == null ? null : e.getAnnotation(Model.class);
1226 ret = findPkgName(e) + '.' + m.className();
1228 models.put(e, m.className());
1229 } else if (findModelForMthd(e)) {
1230 ret = ((TypeElement)e).getQualifiedName().toString();
1233 ret = tm.toString();
1235 TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();
1236 enm = processingEnv.getTypeUtils().erasure(enm);
1237 isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);
1241 private static boolean findModelForMthd(Element clazz) {
1242 if (clazz == null) {
1245 for (Element e : clazz.getEnclosedElements()) {
1246 if (e.getKind() == ElementKind.METHOD) {
1247 ExecutableElement ee = (ExecutableElement)e;
1249 ee.getSimpleName().contentEquals("modelFor") &&
1250 ee.getParameters().isEmpty()
1259 private Iterable<String> findParamNames(Element e, String url, StringBuilder assembleURL) {
1260 List<String> params = new ArrayList<>();
1262 for (int pos = 0; ;) {
1263 int next = url.indexOf('{', pos);
1265 assembleURL.append('"')
1266 .append(url.substring(pos))
1270 int close = url.indexOf('}', next);
1272 error("Unbalanced '{' and '}' in " + url, e);
1275 final String paramName = url.substring(next + 1, close);
1276 params.add(paramName);
1277 assembleURL.append('"')
1278 .append(url.substring(pos, next))
1279 .append("\" + ").append(paramName).append(" + ");
1284 private static Prprt findPrprt(Prprt[] properties, String propName) {
1285 for (Prprt p : properties) {
1286 if (propName.equals(p.name())) {
1293 private boolean isPrimitive(String type) {
1295 "int".equals(type) ||
1296 "double".equals(type) ||
1297 "long".equals(type) ||
1298 "short".equals(type) ||
1299 "byte".equals(type) ||
1300 "float".equals(type);
1303 private static Collection<String> findDerivedFrom(Map<String, Collection<String>> propsDeps, String derivedProp) {
1304 Set<String> names = new HashSet<>();
1305 for (Map.Entry<String, Collection<String>> e : propsDeps.entrySet()) {
1306 if (e.getValue().contains(derivedProp)) {
1307 names.add(e.getKey());
1313 private Prprt[] createProps(Element e, Property[] arr) {
1314 Prprt[] ret = Prprt.wrap(processingEnv, e, arr);
1315 Prprt[] prev = verify.put(e, ret);
1317 error("Two sets of properties for ", e);
1322 private static class Prprt {
1323 private final Element e;
1324 private final AnnotationMirror tm;
1325 private final Property p;
1327 public Prprt(Element e, AnnotationMirror tm, Property p) {
1341 String typeName(ProcessingEnvironment env) {
1343 return p.type().getName();
1344 } catch (AnnotationTypeMismatchException ex) {
1345 for (Object v : getAnnoValues(env)) {
1346 String s = v.toString().replace(" ", "");
1347 if (s.startsWith("type=") && s.endsWith(".class")) {
1348 return s.substring(5, s.length() - 6);
1356 static Prprt[] wrap(ProcessingEnvironment pe, Element e, Property[] arr) {
1357 if (arr.length == 0) {
1358 return new Prprt[0];
1361 if (e.getKind() != ElementKind.CLASS) {
1362 throw new IllegalStateException("" + e.getKind());
1364 TypeElement te = (TypeElement)e;
1365 List<? extends AnnotationValue> val = null;
1366 for (AnnotationMirror an : te.getAnnotationMirrors()) {
1367 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : an.getElementValues().entrySet()) {
1368 if (entry.getKey().getSimpleName().contentEquals("properties")) {
1369 val = (List)entry.getValue().getValue();
1374 if (val == null || val.size() != arr.length) {
1375 pe.getMessager().printMessage(Diagnostic.Kind.ERROR, "" + val, e);
1376 return new Prprt[0];
1378 Prprt[] ret = new Prprt[arr.length];
1379 BIG: for (int i = 0; i < ret.length; i++) {
1380 AnnotationMirror am = (AnnotationMirror)val.get(i).getValue();
1381 ret[i] = new Prprt(e, am, arr[i]);
1387 private List<? extends Object> getAnnoValues(ProcessingEnvironment pe) {
1389 Class<?> trees = Class.forName("com.sun.tools.javac.api.JavacTrees");
1390 Method m = trees.getMethod("instance", ProcessingEnvironment.class);
1391 Object instance = m.invoke(null, pe);
1392 m = instance.getClass().getMethod("getPath", Element.class, AnnotationMirror.class);
1393 Object path = m.invoke(instance, e, tm);
1394 m = path.getClass().getMethod("getLeaf");
1395 Object leaf = m.invoke(path);
1396 m = leaf.getClass().getMethod("getArguments");
1397 return (List)m.invoke(leaf);
1398 } catch (Exception ex) {
1399 return Collections.emptyList();