001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.reef.driver.restart; 020 021import org.apache.reef.driver.evaluator.FailedEvaluator; 022import org.apache.reef.wake.EventHandler; 023 024import javax.inject.Inject; 025 026/** 027 * Removes an evaluator from the evaluators to restart after it has failed. 028 */ 029public final class EvaluatorPreservingEvaluatorFailedHandler implements EventHandler<FailedEvaluator> { 030 private final DriverRestartManager driverRestartManager; 031 032 @Inject 033 private EvaluatorPreservingEvaluatorFailedHandler(final DriverRestartManager driverRestartManager) { 034 this.driverRestartManager = driverRestartManager; 035 } 036 037 /** 038 * Removes the completed evaluator from the list of evaluators to recover 039 * once it is failed. 040 * @param value The failed evaluator event. 041 */ 042 @Override 043 public void onNext(final FailedEvaluator value) { 044 this.driverRestartManager.recordRemovedEvaluator(value.getId()); 045 } 046}