/*
* Copyright (C) 2013 Red Hat, Inc. and/or its affiliates.
*
* 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 org.jboss.errai.ioc.rebind.ioc.bootstrapper;
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.JClassType;
import org.jboss.errai.codegen.Statement;
import org.jboss.errai.codegen.builder.ClassStructureBuilder;
import org.jboss.errai.codegen.builder.impl.ClassBuilder;
import org.jboss.errai.codegen.util.Stmt;
import org.jboss.errai.config.rebind.EnvUtil;
import org.jboss.errai.ioc.client.container.ClientBeanManager;
import org.jboss.errai.ioc.client.container.IOCEnvironment;
import org.jboss.errai.ioc.client.container.SyncBeanManagerImpl;
import org.jboss.errai.ioc.client.container.async.AsyncBeanManagerImpl;
import java.io.PrintWriter;
/**
* @author Mike Brock
*/
public class IOCEnvironmentGenerator extends Generator {
@Override
public String generate(final TreeLogger logger,
final GeneratorContext context,
final String typeName) throws UnableToCompleteException {
try {
final JClassType classType = context.getTypeOracle().getType(typeName);
final String packageName = classType.getPackage().getName();
final String className = classType.getSimpleSourceName() + "Impl";
logger.log(TreeLogger.INFO, "Generating Extensions Bootstrapper...");
// Generate class source code
generateIOCEnvironment(packageName, className, logger, context);
// return the fully qualified name of the class generated
return packageName + "." + className;
}
catch (Throwable e) {
// record sendNowWith logger that Map generation threw an exception
e.printStackTrace();
logger.log(TreeLogger.ERROR, "Error generating extensions", e);
throw new RuntimeException("error generating", e);
}
}
private void generateIOCEnvironment(final String packageName,
final String className,
final TreeLogger logger,
final GeneratorContext generatorContext) {
final PrintWriter printWriter = generatorContext.tryCreate(logger, packageName, className);
if (printWriter == null) {
return;
}
final boolean asyncBootstrap;
final String s = EnvUtil.getEnvironmentConfig().getFrameworkOrSystemProperty("errai.ioc.async_bean_manager");
asyncBootstrap = s != null && Boolean.parseBoolean(s);
final Statement newBeanManager = asyncBootstrap ? Stmt.newObject(AsyncBeanManagerImpl.class) : Stmt.newObject(SyncBeanManagerImpl.class);
final ClassStructureBuilder<? extends ClassStructureBuilder<?>> builder
= ClassBuilder.define(packageName + "." + className).publicScope()
.implementsInterface(IOCEnvironment.class)
.body()
.publicMethod(boolean.class, "isAsync")
.append(Stmt.load(asyncBootstrap).returnValue())
.finish()
.publicMethod(ClientBeanManager.class, "getNewBeanManager")
.append(Stmt.nestedCall(newBeanManager).returnValue())
.finish();
final String csq = builder.toJavaString();
printWriter.append(csq);
generatorContext.commit(logger, printWriter);
}
}