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- /*
- * Copyright 2011, The gwtquery team.
- *
- * Licensed 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 com.google.gwt.query.rebind;
-
- import com.google.gwt.core.ext.Generator;
- import com.google.gwt.core.ext.GeneratorContext;
- import com.google.gwt.core.ext.TreeLogger;
- import com.google.gwt.core.ext.UnableToCompleteException;
- import com.google.gwt.core.ext.typeinfo.JArrayType;
- import com.google.gwt.core.ext.typeinfo.JClassType;
- import com.google.gwt.core.ext.typeinfo.JMethod;
- import com.google.gwt.core.ext.typeinfo.JParameter;
- import com.google.gwt.core.ext.typeinfo.JType;
- import com.google.gwt.core.ext.typeinfo.TypeOracle;
- import com.google.gwt.query.client.Properties;
- import com.google.gwt.query.client.builders.Name;
- import com.google.gwt.query.client.builders.XmlBuilder;
- import com.google.gwt.user.rebind.ClassSourceFileComposerFactory;
- import com.google.gwt.user.rebind.SourceWriter;
-
- import java.io.PrintWriter;
-
- /**
- */
- public class XmlBuilderGenerator extends Generator {
- TypeOracle oracle;
- static JClassType xmlBuilderType;
- static JClassType stringType;
-
- public String generate(TreeLogger treeLogger,
- GeneratorContext generatorContext, String requestedClass)
- throws UnableToCompleteException {
- oracle = generatorContext.getTypeOracle();
- JClassType clazz = oracle.findType(requestedClass);
- xmlBuilderType = oracle.findType(XmlBuilder.class.getName());
- stringType = oracle.findType(String.class.getName());
-
- String t[] = generateClassName(clazz);
-
- SourceWriter sw = getSourceWriter(treeLogger, generatorContext, t[0],
- t[1], requestedClass);
- if (sw != null) {
- for (JMethod method : clazz.getInheritableMethods()) {
- // skip method from JsonBuilder
- if (xmlBuilderType.findMethod(method.getName(), method.getParameterTypes()) != null) {
- continue;
- }
- generateMethod(sw, method, treeLogger);
- }
- sw.commit(treeLogger);
- }
- return t[2];
- }
-
- public String[] generateClassName(JType t) {
- String[] ret = new String[3];
- JClassType c = t.isClassOrInterface();
- ret[0] = c.getPackage().getName();
- ret[1] = c.getName().replace('.', '_') + "_XmlBuilder";
- ret[2] = ret[0] + "." + ret[1];
- return ret;
- }
-
- public boolean isTypeAssignableTo(JType t, JClassType o) {
- JClassType c = t.isClassOrInterface();
- return c != null && c.isAssignableTo(o);
- }
-
- public void generateMethod(SourceWriter sw, JMethod method, TreeLogger logger)
- throws UnableToCompleteException {
- Name nameAnnotation = method.getAnnotation(Name.class);
- String name = nameAnnotation != null ? nameAnnotation.value()
- : method.getName().replaceFirst("^(get|set)", "");
-
- if (nameAnnotation == null) {
- name = name.substring(0, 1).toLowerCase() + name.substring(1);
- }
-
- String retType = method.getReturnType().getParameterizedQualifiedSourceName();
-
- sw.print("public final " + retType + " " + method.getName());
- JParameter[] params = method.getParameters();
- if (params.length == 0) {
- JArrayType arr = method.getReturnType().isArray();
- sw.println("() {");
- sw.indent();
- if (retType.matches("(java.lang.Boolean|boolean)")) {
- sw.println("return getBooleanBase(\"" + name + "\");");
- } else if (method.getReturnType().isPrimitive() != null) {
- sw.println("return (" + retType + ")getFloatBase(\"" + name + "\");");
- } else if (isTypeAssignableTo(method.getReturnType(), stringType)) {
- sw.println("return getStrBase(\"" + name + "\");");
- } else if (isTypeAssignableTo(method.getReturnType(), xmlBuilderType)) {
- String q = method.getReturnType().getQualifiedSourceName();
- sw.println("Element e = getElementBase(\"" + name + "\");");
- sw.println("return e == null ? null : (" + q + ")((" + q + ")GWT.create(" + q
- + ".class)).load(e);");
- } else if (retType.equals(Properties.class.getName())) {
- sw.println("return getPropertiesBase(\"" + name + "\");");
- } else if (arr != null) {
- String q = arr.getComponentType().getQualifiedSourceName();
- sw.println("ArrayList<" + q + "> l = new ArrayList<" + q + ">();");
- sw.println("for (Element e: getElementsBase(\"" + name + "\")) {");
- sw.println(" " + q + " c = GWT.create(" + q + ".class);");
- sw.println(" c.load(e);");
- sw.println(" l.add(c);");
- sw.println("}");
- sw.println("return l.toArray(new " + q + "[0]);");
- } else {
- sw.println("return null; // Unsupported return type: " + retType);
- }
- sw.outdent();
- sw.println("}");
- } else if (params.length == 1) {
- JType type = params[0].getType();
- JArrayType arr = type.isArray();
- String qname = type.getParameterizedQualifiedSourceName();
- sw.print("(" + qname + " a)");
- sw.println("{");
- sw.indent();
- if (arr != null) {
- sw.println("setArrayBase(\"" + name + "\", a);");
- } else {
- sw.println("setBase(\"" + name + "\", a);");
- }
- if (!"void".equals(retType)) {
- if (isTypeAssignableTo(method.getReturnType(), method.getEnclosingType())) {
- sw.println("return this;");
- } else {
- sw.println("return null;");
- }
- }
- sw.outdent();
- sw.println("}");
- }
- }
-
- protected SourceWriter getSourceWriter(TreeLogger logger,
- GeneratorContext context, String packageName, String className,
- String... interfaceNames) {
- PrintWriter printWriter = context.tryCreate(logger, packageName, className);
- if (printWriter == null) {
- return null;
- }
- ClassSourceFileComposerFactory composerFactory = new ClassSourceFileComposerFactory(
- packageName, className);
- composerFactory.setSuperclass("com.google.gwt.query.client.builders.XmlBuilderBase<"
- + packageName + "." + className + ">");
- composerFactory.addImport("com.google.gwt.query.client.js.*");
- composerFactory.addImport("com.google.gwt.query.client.*");
- composerFactory.addImport("com.google.gwt.core.client.*");
- composerFactory.addImport("com.google.gwt.dom.client.*");
- composerFactory.addImport("java.util.*");
- for (String interfaceName : interfaceNames) {
- composerFactory.addImplementedInterface(interfaceName);
- }
- return composerFactory.createSourceWriter(context, printWriter);
- }
- }
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