/**
* 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.mapreduce.v2.app;
import java.util.Map;
import java.util.Set;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.security.client.ClientToAMTokenSecretManager;
import org.apache.hadoop.yarn.util.Clock;
/**
* Context interface for sharing information across components in YARN App.
*/
@InterfaceAudience.Private
public interface AppContext {
ApplicationId getApplicationID();
ApplicationAttemptId getApplicationAttemptId();
String getApplicationName();
long getStartTime();
CharSequence getUser();
Job getJob(JobId jobID);
Map<JobId, Job> getAllJobs();
@SuppressWarnings("rawtypes")
EventHandler getEventHandler();
Clock getClock();
ClusterInfo getClusterInfo();
Set<String> getBlacklistedNodes();
ClientToAMTokenSecretManager getClientToAMTokenSecretManager();
boolean isLastAMRetry();
boolean hasSuccessfullyUnregistered();
}