Java tutorial
/** * 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.metrics; import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp; import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState; import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt; import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState; import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer; import org.apache.hadoop.yarn.api.records.YarnApplicationState; /** * Interface used to publish app/container events to timelineservice. */ public interface SystemMetricsPublisher { void appCreated(RMApp app, long createdTime); void appACLsUpdated(RMApp app, String appViewACLs, long updatedTime); void appUpdated(RMApp app, long updatedTime); void appStateUpdated(RMApp app, YarnApplicationState appState, long updatedTime); void appFinished(RMApp app, RMAppState state, long finishedTime); void appAttemptRegistered(RMAppAttempt appAttempt, long registeredTime); void appAttemptFinished(RMAppAttempt appAttempt, RMAppAttemptState appAttemtpState, RMApp app, long finishedTime); void containerCreated(RMContainer container, long createdTime); void containerFinished(RMContainer container, long finishedTime); }