/*
* Copyright 2002-2008 the original author or authors.
*
* 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.gwtoolbox.ioc.core.rebind.processor.multicaster;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.typeinfo.JClassType;
import org.gwtoolbox.commons.generator.rebind.EasyTreeLogger;
import org.gwtoolbox.ioc.core.client.annotation.Multicaster;
import org.gwtoolbox.ioc.core.client.event.ApplicationEventMulticaster;
import org.gwtoolbox.ioc.core.client.event.DefaultApplicationEventMulticaster;
import org.gwtoolbox.ioc.core.rebind.ProcessorInitializationException;
import org.gwtoolbox.ioc.core.rebind.config.ComponentDefinition;
import org.gwtoolbox.ioc.core.rebind.config.MutableComponentContainerOracle;
import org.gwtoolbox.ioc.core.rebind.config.SimpleComponentDefinition;
import org.gwtoolbox.ioc.core.rebind.processor.AbstractComponentContainerProcessor;
/**
* @author Uri Boness
*/
public class MulticasterProcessor extends AbstractComponentContainerProcessor<Multicaster> {
private final static String DEFAULT_MULTICASTER_ID = "__multicaster__id";
public MulticasterProcessor() {
super(Integer.MAX_VALUE-1);
}
public void doInit(EasyTreeLogger logger, Multicaster multicaster, JClassType containerType, GeneratorContext context)
throws ProcessorInitializationException {
}
public void doProcess(EasyTreeLogger logger, MutableComponentContainerOracle oracle, GeneratorContext context) throws Exception {
JClassType multicasterInterface = context.getTypeOracle().findType(ApplicationEventMulticaster.class.getName());
String componentId = null;
for (ComponentDefinition definition : oracle.getComponentDefinitions()) {
JClassType type = definition.getComponentType();
if (!type.isAssignableTo(multicasterInterface)) {
continue;
}
componentId = definition.getId();
if (logger.debugEnabled()) {
logger.debug("Found multicaster component '" + componentId + "'");
}
break;
}
if (componentId == null) {
componentId = DEFAULT_MULTICASTER_ID;
JClassType type = context.getTypeOracle().findType(DefaultApplicationEventMulticaster.class.getName());
SimpleComponentDefinition definition = new SimpleComponentDefinition(DEFAULT_MULTICASTER_ID, type, true, false, true);
oracle.registerComponentDefinition(definition);
}
oracle.setMulticasterComponentId(componentId);
}
}