/*
* 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.twill.internal;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimaps;
import com.google.common.collect.SetMultimap;
import org.apache.twill.api.ResourceReport;
import org.apache.twill.api.TwillRunResources;
import java.util.Collection;
import java.util.Map;
/**
* Implementation of {@link org.apache.twill.api.ResourceReport} with some
* additional methods for maintaining the report.
*/
public final class DefaultResourceReport implements ResourceReport {
private final SetMultimap<String, TwillRunResources> usedResources;
private final TwillRunResources appMasterResources;
private final String applicationId;
public DefaultResourceReport(String applicationId, TwillRunResources masterResources) {
this.applicationId = applicationId;
this.appMasterResources = masterResources;
this.usedResources = HashMultimap.create();
}
public DefaultResourceReport(String applicationId, TwillRunResources masterResources,
Map<String, Collection<TwillRunResources>> resources) {
this.applicationId = applicationId;
this.appMasterResources = masterResources;
this.usedResources = HashMultimap.create();
for (Map.Entry<String, Collection<TwillRunResources>> entry : resources.entrySet()) {
this.usedResources.putAll(entry.getKey(), entry.getValue());
}
}
/**
* Add resources used by an instance of the runnable.
*
* @param runnableName name of runnable.
* @param resources resources to add.
*/
public void addRunResources(String runnableName, TwillRunResources resources) {
usedResources.put(runnableName, resources);
}
/**
* Remove the resource corresponding to the given runnable and container.
*
* @param runnableName name of runnable.
* @param containerId container id of the runnable.
*/
public void removeRunnableResources(String runnableName, String containerId) {
TwillRunResources toRemove = null;
// could be faster if usedResources was a Table, but that makes returning the
// report a little more complex, and this does not need to be terribly fast.
for (TwillRunResources resources : usedResources.get(runnableName)) {
if (resources.getContainerId().equals(containerId)) {
toRemove = resources;
break;
}
}
usedResources.remove(runnableName, toRemove);
}
/**
* Get all the run resources being used by all instances of the specified runnable.
*
* @param runnableName the runnable name.
* @return resources being used by all instances of the runnable.
*/
@Override
public Collection<TwillRunResources> getRunnableResources(String runnableName) {
return usedResources.get(runnableName);
}
/**
* Get all the run resources being used across all runnables.
*
* @return all run resources used by all instances of all runnables.
*/
@Override
public Map<String, Collection<TwillRunResources>> getResources() {
return Multimaps.unmodifiableSetMultimap(usedResources).asMap();
}
/**
* Get the resources application master is using.
*
* @return resources being used by the application master.
*/
@Override
public TwillRunResources getAppMasterResources() {
return appMasterResources;
}
/**
* Get the id of the application master.
*
* @return id of the application master.
*/
@Override
public String getApplicationId() {
return applicationId;
}
}