com.google.gwt.validation.rebind.AbstractCreator Maven / Gradle / Ivy
/*
* Copyright 2010 Google Inc.
*
* 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.validation.rebind;
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.JClassType;
import com.google.gwt.core.ext.typeinfo.JPackage;
import com.google.gwt.user.rebind.AbstractSourceCreator;
import com.google.gwt.user.rebind.ClassSourceFileComposerFactory;
import com.google.gwt.user.rebind.SourceWriter;
import java.io.PrintWriter;
/**
* EXPERIMENTAL and subject to change. Do not use this in
* production code.
*
* Abstract Class for Creating source files.
*
* This class is not thread safe.
*/
public abstract class AbstractCreator extends AbstractSourceCreator {
protected final GeneratorContext context;
protected final TreeLogger logger;
protected final JClassType validatorType;
public AbstractCreator(GeneratorContext context, TreeLogger logger,
JClassType validatorType) {
super();
this.context = context;
this.logger = branch(logger, "Creating " + validatorType);
this.validatorType = validatorType;
}
public final String create() throws UnableToCompleteException {
SourceWriter sourceWriter = getSourceWriter(logger, context);
if (sourceWriter != null) {
writeClassBody(sourceWriter);
sourceWriter.commit(logger);
}
return getQualifiedName();
}
protected void addImports(ClassSourceFileComposerFactory composerFactory, Class... imports) {
for (Class imp : imports) {
composerFactory.addImport(imp.getCanonicalName());
}
}
protected abstract void compose(ClassSourceFileComposerFactory composerFactory);
protected BeanHelper createBeanHelper(Class clazz)
throws UnableToCompleteException {
return BeanHelper.createBeanHelper(clazz, logger, context);
}
protected BeanHelper createBeanHelper(JClassType jType)
throws UnableToCompleteException {
return BeanHelper.createBeanHelper(jType, logger, context);
}
protected final String getPackage() {
JPackage serviceIntfPkg = validatorType.getPackage();
String packageName = serviceIntfPkg == null ? "" : serviceIntfPkg.getName();
return packageName;
}
protected abstract void writeClassBody(SourceWriter sourceWriter)
throws UnableToCompleteException;
protected void writeValidatorInstance(SourceWriter sw, BeanHelper bean) {
BeanHelper.writeInterface(context, logger, bean);
// private final MyBeanValidator myBeanValidator =
sw.print("private final " + bean.getFullyQualifiedValidatorName() + " ");
sw.print(bean.getValidatorInstanceName());
sw.println(" = ");
sw.indent();
sw.indent();
// MyBeanValidator.INSTANCE;
sw.print(bean.getFullyQualifiedValidatorName());
sw.println(".INSTANCE;");
sw.outdent();
sw.outdent();
}
private String getQualifiedName() {
String packageName = getPackage();
return (packageName == "" ? "" : packageName + ".") + getSimpleName();
}
private String getSimpleName() {
return validatorType.getSimpleSourceName() + "Impl";
}
private SourceWriter getSourceWriter(TreeLogger logger,
GeneratorContext ctx) {
String packageName = getPackage();
String simpleName = getSimpleName();
PrintWriter printWriter = ctx.tryCreate(logger, packageName, simpleName);
if (printWriter == null) {
return null;
}
ClassSourceFileComposerFactory composerFactory = new ClassSourceFileComposerFactory(
packageName, simpleName);
compose(composerFactory);
SourceWriter sourceWriter = composerFactory.createSourceWriter(ctx,
printWriter);
return sourceWriter;
}
}