| /** |
| * 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.tez.dag.app; |
| |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.yarn.api.records.ApplicationAccessType; |
| 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.util.Clock; |
| import org.apache.tez.dag.app.dag.DAG; |
| import org.apache.tez.dag.app.rm.TaskSchedulerEventHandler; |
| import org.apache.tez.dag.app.rm.container.AMContainerMap; |
| import org.apache.tez.dag.app.rm.node.AMNodeTracker; |
| import org.apache.tez.common.security.ACLManager; |
| import org.apache.tez.dag.history.HistoryEventHandler; |
| import org.apache.tez.dag.records.TezDAGID; |
| |
| import com.google.common.util.concurrent.ListeningExecutorService; |
| |
| |
| /** |
| * Context interface for sharing information across components in Tez DAG |
| */ |
| @InterfaceAudience.Private |
| public interface AppContext { |
| |
| DAGAppMaster getAppMaster(); |
| |
| Configuration getAMConf(); |
| |
| ApplicationId getApplicationID(); |
| |
| TezDAGID getCurrentDAGID(); |
| |
| long getCumulativeCPUTime(); |
| |
| long getCumulativeGCTime(); |
| |
| ApplicationAttemptId getApplicationAttemptId(); |
| |
| String getApplicationName(); |
| |
| Map<ApplicationAccessType, String> getApplicationACLs(); |
| |
| long getStartTime(); |
| |
| String getUser(); |
| |
| DAG getCurrentDAG(); |
| |
| ListeningExecutorService getExecService(); |
| |
| void setDAG(DAG dag); |
| |
| Set<String> getAllDAGIDs(); |
| |
| @SuppressWarnings("rawtypes") |
| EventHandler getEventHandler(); |
| |
| Clock getClock(); |
| |
| ClusterInfo getClusterInfo(); |
| |
| AMContainerMap getAllContainers(); |
| |
| AMNodeTracker getNodeTracker(); |
| |
| TaskSchedulerEventHandler getTaskScheduler(); |
| |
| boolean isSession(); |
| |
| boolean isLocal(); |
| |
| DAGAppMasterState getAMState(); |
| |
| HistoryEventHandler getHistoryHandler(); |
| |
| Path getCurrentRecoveryDir(); |
| |
| boolean isRecoveryEnabled(); |
| |
| ACLManager getAMACLManager(); |
| |
| String[] getLogDirs(); |
| |
| String[] getLocalDirs(); |
| |
| String getAMUser(); |
| |
| /** Whether the AM is in the process of shutting down/completing */ |
| boolean isAMInCompletionState(); |
| |
| } |