platform/api.htmlui/src/org/netbeans/modules/htmlui/HTMLDialogProcessor.java - netbeans - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */
 package org.netbeans.modules.htmlui;

 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.Writer;
 import java.lang.annotation.Annotation;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.Comparator;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.TreeMap;
 import java.util.TreeSet;
 import javax.annotation.processing.AbstractProcessor;
 import javax.annotation.processing.Processor;
 import javax.annotation.processing.RoundEnvironment;
 import javax.lang.model.SourceVersion;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.ElementKind;
 import javax.lang.model.element.ExecutableElement;
 import javax.lang.model.element.Modifier;
 import javax.lang.model.element.PackageElement;
 import javax.lang.model.element.TypeElement;
 import javax.lang.model.element.VariableElement;
 import javax.lang.model.type.MirroredTypeException;
 import javax.lang.model.type.TypeKind;
 import javax.lang.model.type.TypeMirror;
 import javax.tools.Diagnostic;
 import javax.tools.FileObject;
 import javax.tools.JavaFileManager;
 import javax.tools.JavaFileObject;
 import javax.tools.StandardLocation;
 import org.netbeans.api.htmlui.HTMLComponent;
 import org.netbeans.api.htmlui.HTMLDialog;
 import org.openide.filesystems.annotations.LayerBuilder;
 import org.openide.filesystems.annotations.LayerGenerationException;
 import org.openide.util.lookup.ServiceProvider;

 /**
  *
  * @author Jaroslav Tulach
  */
 @ServiceProvider(service = Processor.class)
 public class HTMLDialogProcessor extends AbstractProcessor
 implements Comparator<ExecutableElement> {
     @Override
     public Set<String> getSupportedAnnotationTypes() {
         Set<String> hash = new HashSet<>();
         hash.add(HTMLDialog.class.getCanonicalName());
         hash.add(HTMLComponent.class.getCanonicalName());
         return hash;
     }

     @Override
     public SourceVersion getSupportedSourceVersion() {
         return SourceVersion.latest();
     }

     private Set<Element> annotatedWith(RoundEnvironment re, Class<? extends Annotation> type) {
         Set<Element> collect = new HashSet<>();
         findAllElements(re.getElementsAnnotatedWith(type), collect, type);
         return collect;
     }


     @Override
     public boolean process(Set<? extends TypeElement> set, RoundEnvironment re)  {
         Map<String,Set<ExecutableElement>> names = new TreeMap<>();
         for (Element e : annotatedWith(re, HTMLDialog.class)) {
             HTMLDialog reg = e.getAnnotation(HTMLDialog.class);
             if (reg == null || e.getKind() != ElementKind.METHOD) {
                 continue;
             }
             ExecutableElement ee = (ExecutableElement) e;
             if (!e.getModifiers().contains(Modifier.STATIC)) {
                 error("Method annotated by @HTMLDialog needs to be static", e);
             }
             if (e.getModifiers().contains(Modifier.PRIVATE)) {
                 error("Method annotated by @HTMLDialog cannot be private", e);
             }
             if (!ee.getThrownTypes().isEmpty()) {
                 error("Method annotated by @HTMLDialog cannot throw exceptions", e);
             }

             PackageElement pkg = findPkg(ee);

             String fqn = pkg.getQualifiedName() + "." + reg.className();

             Set<ExecutableElement> elems = names.get(fqn);
             if (elems == null) {
                 elems = new TreeSet<>(this);
                 names.put(fqn, elems);
             }
             elems.add(ee);
         }
         for (Element e : annotatedWith(re, HTMLComponent.class)) {
             HTMLComponent reg = e.getAnnotation(HTMLComponent.class);
             if (reg == null || e.getKind() != ElementKind.METHOD) {
                 continue;
             }
             ExecutableElement ee = (ExecutableElement) e;
             if (!e.getModifiers().contains(Modifier.STATIC)) {
                 error("Method annotated by @HTMLComponent needs to be static", e);
             }
             if (e.getModifiers().contains(Modifier.PRIVATE)) {
                 error("Method annotated by @HTMLComponent cannot be private", e);
             }
             if (!ee.getThrownTypes().isEmpty()) {
                 error("Method annotated by @HTMLComponent cannot throw exceptions", e);
             }

             PackageElement pkg = findPkg(ee);

             String fqn = pkg.getQualifiedName() + "." + reg.className();

             Set<ExecutableElement> elems = names.get(fqn);
             if (elems == null) {
                 elems = new TreeSet<>(this);
                 names.put(fqn, elems);
             }
             elems.add(ee);
         }

         for (Map.Entry<String, Set<ExecutableElement>> entry : names.entrySet()) {
             String clazzName = entry.getKey();
             Set<ExecutableElement> elems = entry.getValue();
             Element first = elems.iterator().next();
             try {
                 JavaFileObject f = processingEnv.getFiler().createSourceFile(
                     clazzName, elems.toArray(new Element[0])
                 );
                 Writer w = f.openWriter();

                 final String[] arr = splitPkg(clazzName, first);
                 w.append("package ").append(arr[0]).append(";\n");
                 w.append("\n");
                 w.append("import org.netbeans.api.htmlui.HTMLDialog.Builder;\n");
                 w.append("class ").append(arr[1]).append(" {\n");
                 w.append("  private ").append(arr[1]).append("() {\n  }\n");
                 w.append("\n");

                 for (ExecutableElement ee : elems) {
                     HTMLDialog reg = ee.getAnnotation(HTMLDialog.class);
                     HTMLComponent comp = ee.getAnnotation(HTMLComponent.class);
                     if (reg != null) {
                         String url = findURL(reg.url(), ee);
                         if (url == null) {
                             continue;
                         }
                         generateDialog(w, ee, url, reg.techIds());
                     }
                     if (comp != null) {
                         String url = findURL(comp.url(), ee);
                         if (url == null) {
                             continue;
                         }
                         String t;
                         try {
                             t = comp.type().getName();
                         } catch (MirroredTypeException ex) {
                             t = ex.getTypeMirror().toString();
                         }
                         if (
                             !t.equals("javafx.scene.Node") &&
                             !t.equals("javax.swing.JComponent")
                         ) {
                             error("type() can be either Node.class or JComponent.class", ee);
                         }
                         generateComponent(w, ee, t, url, comp.techIds());
                     }
                 }

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

             } catch (IOException ex) {
                 error("Cannot create " + clazzName, first);
             }
         }

         return true;
     }

     private String findURL(final String relativeURL, ExecutableElement ee) {
         String url;
         try {
             URL u = new URL(relativeURL);
             url = u.toExternalForm();
         } catch (MalformedURLException ex2) {
             try {
                 final String res = LayerBuilder.absolutizeResource(ee, relativeURL);
                 validateResource(res, ee, null, null, false);
                 url = "nbresloc:/" + res;
             } catch (LayerGenerationException ex) {
                 error("Cannot find resource " + relativeURL, ee);
                 url = null;
             }
         }
         return url;
     }

     private void generateDialog(Writer w, ExecutableElement ee, String url, String[] techIds) throws IOException {
         TypeElement onSubmit = processingEnv.getElementUtils().getTypeElement(HTMLDialog.OnSubmit.class.getCanonicalName());
         final TypeMirror retType = ee.getReturnType();
         boolean returnsOnSubmit = retType.getKind() != TypeKind.ERROR && processingEnv.getTypeUtils().isSubtype(retType, onSubmit.asType());
         if (!returnsOnSubmit) {
             warning("Rather modify the method to return HTMLDialog.OnSubmit callback!", ee);
         }
         w.append("  public static ");
         if (returnsOnSubmit) {
             w.append("void ");
         } else {
             w.append("String ");
         }
         w.append(ee.getSimpleName());
         w.append("(");
         String sep = "";
         for (VariableElement v : ee.getParameters()) {
             w.append(sep);
             w.append("final ").append(v.asType().toString()).append(" ").append(v.getSimpleName());
             sep = ", ";
         }

         w.append(") {\n");
         w.append("    class DialogImpl implements Runnable");
         if (returnsOnSubmit) {
             w.append(", org.netbeans.api.htmlui.HTMLDialog.OnSubmit {\n");
             w.append("        private volatile org.netbeans.api.htmlui.HTMLDialog.OnSubmit delegate;\n");
             w.append("\n");
             w.append("        @Override\n");
             w.append("        public boolean onSubmit(String id) {\n");
             w.append("          return delegate == null || delegate.onSubmit(id);\n");
             w.append("        }\n");
         } else {
             w.append(" {\n");
         }
         w.append("        @Override\n");
         w.append("        public void run() {\n");
         w.append("          ");
         if (returnsOnSubmit) {
             w.append("delegate = ");
         }
         w.append(ee.getEnclosingElement().getSimpleName())
                 .append(".").append(ee.getSimpleName()).append("(");
         sep = "";
         for (VariableElement v : ee.getParameters()) {
             w.append(sep);
             w.append(v.getSimpleName());
             sep = ", ";
         }
         w.append(");\n");
         w.append("        }\n");
         w.append("    }\n");
         w.append("    DialogImpl impl = new DialogImpl();\n");
         if (returnsOnSubmit) {
             w.append("    ");
         } else {
             w.append("    return ");
         }
         w.append("Builder.newDialog(\"").append(url).append("\").\n");
         generateTechIds(w, techIds);
         w.append("      loadFinished(impl).\n");
         if (returnsOnSubmit) {
             w.append("      show(impl);\n");
         } else {
             w.append("      showAndWait();\n");
         }
         w.append("  }\n");
     }

     private void generateComponent(
         Writer w, ExecutableElement ee, String type, String url, String[] techIds
     ) throws IOException {
         w.append("  public static ").append(type).append(" ").append(ee.getSimpleName());
         w.append("(");
         String sep = "";
         for (VariableElement v : ee.getParameters()) {
             w.append(sep);
             w.append("final ").append(v.asType().toString()).append(" ").append(v.getSimpleName());
             sep = ", ";
         }

         w.append(") {\n");
         w.append("    return Builder.newDialog(\"").append(url).append("\").\n");
         generateTechIds(w, techIds);
         w.append("      loadFinished(new Runnable() {\n");
         w.append("        public void run() {\n");
         w.append("          ").append(ee.getEnclosingElement().getSimpleName())
                 .append(".").append(ee.getSimpleName()).append("(");
         sep = "";
         for (VariableElement v : ee.getParameters()) {
             w.append(sep);
             w.append(v.getSimpleName());
             sep = ", ";
         }
         w.append(");\n");
         w.append("        }\n");
         w.append("      }).\n");
         w.append("      component(").append(type).append(".class);\n");
         w.append("  }\n");
     }

     private void error(final String msg, Element e) {
         processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, msg, e);
     }

     private void warning(final String msg, Element e) {
         processingEnv.getMessager().printMessage(Diagnostic.Kind.WARNING, msg, e);
     }

     private static PackageElement findPkg(Element e) {
         while (e.getKind() != ElementKind.PACKAGE) {
             e = e.getEnclosingElement();
         }
         return (PackageElement)e;
     }

     private String[] splitPkg(String s, Element e) {
         int last = s.lastIndexOf('.');
         if (last == -1) {
             error("Cannot generate " + s + " into default package!", e);
             return new String[] { "x", s };
         } else {
             return new String[] { s.substring(0, last), s.substring(last + 1) };
         }
     }

     @Override
     public int compare(ExecutableElement o1, ExecutableElement o2) {
         if (o1 == o2) {
             return 0;
         }
         int names = o1.getSimpleName().toString().compareTo(
             o2.getSimpleName().toString()
         );
         if (names != 0) {
             return names;
         }
         names = o1.getEnclosingElement().getSimpleName().toString().compareTo(
             o2.getEnclosingElement().getSimpleName().toString()
         );
         if (names != 0) {
             return names;
         }
         int id1 = System.identityHashCode(o1);
         int id2 = System.identityHashCode(o2);
         if (id1 == id2) {
             throw new IllegalStateException("Cannot order " + o1 + " and " + o2);
         }
         return id1 - id2;
     }

     FileObject validateResource(String resource, Element originatingElement, Annotation annotation, String annotationMethod, boolean searchClasspath) throws LayerGenerationException {
         if (resource.startsWith("/")) {
             throw new LayerGenerationException("do not use leading slashes on resource paths", originatingElement, processingEnv, annotation, annotationMethod);
         }
         if (searchClasspath) {
             for (JavaFileManager.Location loc : new JavaFileManager.Location[]{StandardLocation.SOURCE_PATH, /* #181355 */ StandardLocation.CLASS_OUTPUT, StandardLocation.CLASS_PATH, StandardLocation.PLATFORM_CLASS_PATH}) {
                 try {
                     FileObject f = processingEnv.getFiler().getResource(loc, "", resource);
                     if (loc.isOutputLocation()) {
                         f.openInputStream().close();
                     }
                     return f;
                 } catch (IOException ex) {
                     continue;
                 }
             }
             throw new LayerGenerationException("Cannot find resource " + resource, originatingElement, processingEnv, annotation, annotationMethod);
         } else {
             try {
                 try {
                     FileObject f = processingEnv.getFiler().getResource(StandardLocation.SOURCE_PATH, "", resource);
                     f.openInputStream().close();
                     return f;
                 } catch (FileNotFoundException x) {
                     try {
                         FileObject f = processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, "", resource);
                         f.openInputStream().close();
                         return f;
                     } catch (IOException x2) {
                         throw x;
                     }
                 }
             } catch (IOException x) {
                 throw new LayerGenerationException("Cannot find resource " + resource, originatingElement, processingEnv, annotation, annotationMethod);
             }
         }
     }

     private static void findAllElements(
             Set<? extends Element> scan, Set<Element> found,
             Class<? extends Annotation> type
     ) {
         for (Element e : scan) {
             PackageElement pkg = findPkg(e);
             if (found.add(pkg)) {
                 searchSubTree(pkg, found, type);
             }
         }
     }

     private static void searchSubTree(
             Element e,
             Set<Element> found,
             Class<? extends Annotation> type
     ) {
         if (e.getAnnotation(type) != null) {
             found.add(e);
         }
         for (Element ee : e.getEnclosedElements()) {
             searchSubTree(ee, found, type);
         }
     }

     private void generateTechIds(Writer w, String[] techIds) throws IOException {
         if (techIds.length == 0) {
             return;
         }
         w.append("addTechIds(");
         String sep = "";
         for (String id : techIds) {
             w.append(sep);
             w.append('"');
             w.append(id);
             w.append('"');
             sep = ", ";
         }
         w.append(").\n");
     }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/
	package org.netbeans.modules.htmlui;

	import java.io.FileNotFoundException;
	import java.io.IOException;
	import java.io.Writer;
	import java.lang.annotation.Annotation;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.util.Comparator;
	import java.util.HashSet;
	import java.util.Map;
	import java.util.Set;
	import java.util.TreeMap;
	import java.util.TreeSet;
	import javax.annotation.processing.AbstractProcessor;
	import javax.annotation.processing.Processor;
	import javax.annotation.processing.RoundEnvironment;
	import javax.lang.model.SourceVersion;
	import javax.lang.model.element.Element;
	import javax.lang.model.element.ElementKind;
	import javax.lang.model.element.ExecutableElement;
	import javax.lang.model.element.Modifier;
	import javax.lang.model.element.PackageElement;
	import javax.lang.model.element.TypeElement;
	import javax.lang.model.element.VariableElement;
	import javax.lang.model.type.MirroredTypeException;
	import javax.lang.model.type.TypeKind;
	import javax.lang.model.type.TypeMirror;
	import javax.tools.Diagnostic;
	import javax.tools.FileObject;
	import javax.tools.JavaFileManager;
	import javax.tools.JavaFileObject;
	import javax.tools.StandardLocation;
	import org.netbeans.api.htmlui.HTMLComponent;
	import org.netbeans.api.htmlui.HTMLDialog;
	import org.openide.filesystems.annotations.LayerBuilder;
	import org.openide.filesystems.annotations.LayerGenerationException;
	import org.openide.util.lookup.ServiceProvider;

	/**
	*
	* @author Jaroslav Tulach
	*/
	@ServiceProvider(service = Processor.class)
	public class HTMLDialogProcessor extends AbstractProcessor
	implements Comparator<ExecutableElement> {
	@Override
	public Set<String> getSupportedAnnotationTypes() {
	Set<String> hash = new HashSet<>();
	hash.add(HTMLDialog.class.getCanonicalName());
	hash.add(HTMLComponent.class.getCanonicalName());
	return hash;
	}

	@Override
	public SourceVersion getSupportedSourceVersion() {
	return SourceVersion.latest();
	}

	private Set<Element> annotatedWith(RoundEnvironment re, Class<? extends Annotation> type) {
	Set<Element> collect = new HashSet<>();
	findAllElements(re.getElementsAnnotatedWith(type), collect, type);
	return collect;
	}


	@Override
	public boolean process(Set<? extends TypeElement> set, RoundEnvironment re) {
	Map<String,Set<ExecutableElement>> names = new TreeMap<>();
	for (Element e : annotatedWith(re, HTMLDialog.class)) {
	HTMLDialog reg = e.getAnnotation(HTMLDialog.class);
	if (reg == null \|\| e.getKind() != ElementKind.METHOD) {
	continue;
	}
	ExecutableElement ee = (ExecutableElement) e;
	if (!e.getModifiers().contains(Modifier.STATIC)) {
	error("Method annotated by @HTMLDialog needs to be static", e);
	}
	if (e.getModifiers().contains(Modifier.PRIVATE)) {
	error("Method annotated by @HTMLDialog cannot be private", e);
	}
	if (!ee.getThrownTypes().isEmpty()) {
	error("Method annotated by @HTMLDialog cannot throw exceptions", e);
	}

	PackageElement pkg = findPkg(ee);

	String fqn = pkg.getQualifiedName() + "." + reg.className();

	Set<ExecutableElement> elems = names.get(fqn);
	if (elems == null) {
	elems = new TreeSet<>(this);
	names.put(fqn, elems);
	}
	elems.add(ee);
	}
	for (Element e : annotatedWith(re, HTMLComponent.class)) {
	HTMLComponent reg = e.getAnnotation(HTMLComponent.class);
	if (reg == null \|\| e.getKind() != ElementKind.METHOD) {
	continue;
	}
	ExecutableElement ee = (ExecutableElement) e;
	if (!e.getModifiers().contains(Modifier.STATIC)) {
	error("Method annotated by @HTMLComponent needs to be static", e);
	}
	if (e.getModifiers().contains(Modifier.PRIVATE)) {
	error("Method annotated by @HTMLComponent cannot be private", e);
	}
	if (!ee.getThrownTypes().isEmpty()) {
	error("Method annotated by @HTMLComponent cannot throw exceptions", e);
	}

	PackageElement pkg = findPkg(ee);

	String fqn = pkg.getQualifiedName() + "." + reg.className();

	Set<ExecutableElement> elems = names.get(fqn);
	if (elems == null) {
	elems = new TreeSet<>(this);
	names.put(fqn, elems);
	}
	elems.add(ee);
	}

	for (Map.Entry<String, Set<ExecutableElement>> entry : names.entrySet()) {
	String clazzName = entry.getKey();
	Set<ExecutableElement> elems = entry.getValue();
	Element first = elems.iterator().next();
	try {
	JavaFileObject f = processingEnv.getFiler().createSourceFile(
	clazzName, elems.toArray(new Element[0])
	);
	Writer w = f.openWriter();

	final String[] arr = splitPkg(clazzName, first);
	w.append("package ").append(arr[0]).append(";\n");
	w.append("\n");
	w.append("import org.netbeans.api.htmlui.HTMLDialog.Builder;\n");
	w.append("class ").append(arr[1]).append(" {\n");
	w.append(" private ").append(arr[1]).append("() {\n }\n");
	w.append("\n");

	for (ExecutableElement ee : elems) {
	HTMLDialog reg = ee.getAnnotation(HTMLDialog.class);
	HTMLComponent comp = ee.getAnnotation(HTMLComponent.class);
	if (reg != null) {
	String url = findURL(reg.url(), ee);
	if (url == null) {
	continue;
	}
	generateDialog(w, ee, url, reg.techIds());
	}
	if (comp != null) {
	String url = findURL(comp.url(), ee);
	if (url == null) {
	continue;
	}
	String t;
	try {
	t = comp.type().getName();
	} catch (MirroredTypeException ex) {
	t = ex.getTypeMirror().toString();
	}
	if (
	!t.equals("javafx.scene.Node") &&
	!t.equals("javax.swing.JComponent")
	) {
	error("type() can be either Node.class or JComponent.class", ee);
	}
	generateComponent(w, ee, t, url, comp.techIds());
	}
	}

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

	} catch (IOException ex) {
	error("Cannot create " + clazzName, first);
	}
	}

	return true;
	}

	private String findURL(final String relativeURL, ExecutableElement ee) {
	String url;
	try {
	URL u = new URL(relativeURL);
	url = u.toExternalForm();
	} catch (MalformedURLException ex2) {
	try {
	final String res = LayerBuilder.absolutizeResource(ee, relativeURL);
	validateResource(res, ee, null, null, false);
	url = "nbresloc:/" + res;
	} catch (LayerGenerationException ex) {
	error("Cannot find resource " + relativeURL, ee);
	url = null;
	}
	}
	return url;
	}

	private void generateDialog(Writer w, ExecutableElement ee, String url, String[] techIds) throws IOException {
	TypeElement onSubmit = processingEnv.getElementUtils().getTypeElement(HTMLDialog.OnSubmit.class.getCanonicalName());
	final TypeMirror retType = ee.getReturnType();
	boolean returnsOnSubmit = retType.getKind() != TypeKind.ERROR && processingEnv.getTypeUtils().isSubtype(retType, onSubmit.asType());
	if (!returnsOnSubmit) {
	warning("Rather modify the method to return HTMLDialog.OnSubmit callback!", ee);
	}
	w.append(" public static ");
	if (returnsOnSubmit) {
	w.append("void ");
	} else {
	w.append("String ");
	}
	w.append(ee.getSimpleName());
	w.append("(");
	String sep = "";
	for (VariableElement v : ee.getParameters()) {
	w.append(sep);
	w.append("final ").append(v.asType().toString()).append(" ").append(v.getSimpleName());
	sep = ", ";
	}

	w.append(") {\n");
	w.append(" class DialogImpl implements Runnable");
	if (returnsOnSubmit) {
	w.append(", org.netbeans.api.htmlui.HTMLDialog.OnSubmit {\n");
	w.append(" private volatile org.netbeans.api.htmlui.HTMLDialog.OnSubmit delegate;\n");
	w.append("\n");
	w.append(" @Override\n");
	w.append(" public boolean onSubmit(String id) {\n");
	w.append(" return delegate == null \|\| delegate.onSubmit(id);\n");
	w.append(" }\n");
	} else {
	w.append(" {\n");
	}
	w.append(" @Override\n");
	w.append(" public void run() {\n");
	w.append(" ");
	if (returnsOnSubmit) {
	w.append("delegate = ");
	}
	w.append(ee.getEnclosingElement().getSimpleName())
	.append(".").append(ee.getSimpleName()).append("(");
	sep = "";
	for (VariableElement v : ee.getParameters()) {
	w.append(sep);
	w.append(v.getSimpleName());
	sep = ", ";
	}
	w.append(");\n");
	w.append(" }\n");
	w.append(" }\n");
	w.append(" DialogImpl impl = new DialogImpl();\n");
	if (returnsOnSubmit) {
	w.append(" ");
	} else {
	w.append(" return ");
	}
	w.append("Builder.newDialog(\"").append(url).append("\").\n");
	generateTechIds(w, techIds);
	w.append(" loadFinished(impl).\n");
	if (returnsOnSubmit) {
	w.append(" show(impl);\n");
	} else {
	w.append(" showAndWait();\n");
	}
	w.append(" }\n");
	}

	private void generateComponent(
	Writer w, ExecutableElement ee, String type, String url, String[] techIds
	) throws IOException {
	w.append(" public static ").append(type).append(" ").append(ee.getSimpleName());
	w.append("(");
	String sep = "";
	for (VariableElement v : ee.getParameters()) {
	w.append(sep);
	w.append("final ").append(v.asType().toString()).append(" ").append(v.getSimpleName());
	sep = ", ";
	}

	w.append(") {\n");
	w.append(" return Builder.newDialog(\"").append(url).append("\").\n");
	generateTechIds(w, techIds);
	w.append(" loadFinished(new Runnable() {\n");
	w.append(" public void run() {\n");
	w.append(" ").append(ee.getEnclosingElement().getSimpleName())
	.append(".").append(ee.getSimpleName()).append("(");
	sep = "";
	for (VariableElement v : ee.getParameters()) {
	w.append(sep);
	w.append(v.getSimpleName());
	sep = ", ";
	}
	w.append(");\n");
	w.append(" }\n");
	w.append(" }).\n");
	w.append(" component(").append(type).append(".class);\n");
	w.append(" }\n");
	}

	private void error(final String msg, Element e) {
	processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, msg, e);
	}

	private void warning(final String msg, Element e) {
	processingEnv.getMessager().printMessage(Diagnostic.Kind.WARNING, msg, e);
	}

	private static PackageElement findPkg(Element e) {
	while (e.getKind() != ElementKind.PACKAGE) {
	e = e.getEnclosingElement();
	}
	return (PackageElement)e;
	}

	private String[] splitPkg(String s, Element e) {
	int last = s.lastIndexOf('.');
	if (last == -1) {
	error("Cannot generate " + s + " into default package!", e);
	return new String[] { "x", s };
	} else {
	return new String[] { s.substring(0, last), s.substring(last + 1) };
	}
	}

	@Override
	public int compare(ExecutableElement o1, ExecutableElement o2) {
	if (o1 == o2) {
	return 0;
	}
	int names = o1.getSimpleName().toString().compareTo(
	o2.getSimpleName().toString()
	);
	if (names != 0) {
	return names;
	}
	names = o1.getEnclosingElement().getSimpleName().toString().compareTo(
	o2.getEnclosingElement().getSimpleName().toString()
	);
	if (names != 0) {
	return names;
	}
	int id1 = System.identityHashCode(o1);
	int id2 = System.identityHashCode(o2);
	if (id1 == id2) {
	throw new IllegalStateException("Cannot order " + o1 + " and " + o2);
	}
	return id1 - id2;
	}

	FileObject validateResource(String resource, Element originatingElement, Annotation annotation, String annotationMethod, boolean searchClasspath) throws LayerGenerationException {
	if (resource.startsWith("/")) {
	throw new LayerGenerationException("do not use leading slashes on resource paths", originatingElement, processingEnv, annotation, annotationMethod);
	}
	if (searchClasspath) {
	for (JavaFileManager.Location loc : new JavaFileManager.Location[]{StandardLocation.SOURCE_PATH, /* #181355 */ StandardLocation.CLASS_OUTPUT, StandardLocation.CLASS_PATH, StandardLocation.PLATFORM_CLASS_PATH}) {
	try {
	FileObject f = processingEnv.getFiler().getResource(loc, "", resource);
	if (loc.isOutputLocation()) {
	f.openInputStream().close();
	}
	return f;
	} catch (IOException ex) {
	continue;
	}
	}
	throw new LayerGenerationException("Cannot find resource " + resource, originatingElement, processingEnv, annotation, annotationMethod);
	} else {
	try {
	try {
	FileObject f = processingEnv.getFiler().getResource(StandardLocation.SOURCE_PATH, "", resource);
	f.openInputStream().close();
	return f;
	} catch (FileNotFoundException x) {
	try {
	FileObject f = processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, "", resource);
	f.openInputStream().close();
	return f;
	} catch (IOException x2) {
	throw x;
	}
	}
	} catch (IOException x) {
	throw new LayerGenerationException("Cannot find resource " + resource, originatingElement, processingEnv, annotation, annotationMethod);
	}
	}
	}

	private static void findAllElements(
	Set<? extends Element> scan, Set<Element> found,
	Class<? extends Annotation> type
	) {
	for (Element e : scan) {
	PackageElement pkg = findPkg(e);
	if (found.add(pkg)) {
	searchSubTree(pkg, found, type);
	}
	}
	}

	private static void searchSubTree(
	Element e,
	Set<Element> found,
	Class<? extends Annotation> type
	) {
	if (e.getAnnotation(type) != null) {
	found.add(e);
	}
	for (Element ee : e.getEnclosedElements()) {
	searchSubTree(ee, found, type);
	}
	}

	private void generateTechIds(Writer w, String[] techIds) throws IOException {
	if (techIds.length == 0) {
	return;
	}
	w.append("addTechIds(");
	String sep = "";
	for (String id : techIds) {
	w.append(sep);
	w.append('"');
	w.append(id);
	w.append('"');
	sep = ", ";
	}
	w.append(").\n");
	}
	}