/**
* 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.apache.hadoop.yarn.server.resourcemanager.resourcetracker;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.yarn.event.AsyncDispatcher;
import org.apache.hadoop.yarn.event.Event;
import org.apache.hadoop.yarn.event.EventHandler;
public class InlineDispatcher extends AsyncDispatcher {
private static final Log LOG = LogFactory.getLog(InlineDispatcher.class);
private class TestEventHandler implements EventHandler {
@Override
public void handle(Event event) {
dispatch(event);
}
}
@Override
protected void dispatch(Event event) {
LOG.info("Dispatching the event " + event.getClass().getName() + "."
+ event.toString());
Class<? extends Enum> type = event.getType().getDeclaringClass();
if (eventDispatchers.get(type) != null) {
eventDispatchers.get(type).handle(event);
}
}
@Override
public EventHandler getEventHandler() {
return new TestEventHandler();
}
static class EmptyEventHandler implements EventHandler<Event> {
@Override
public void handle(Event event) {
//do nothing
}
}
}