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.runtime.common.evaluator; 020 021import javax.inject.Inject; 022import java.util.logging.Level; 023import java.util.logging.Logger; 024 025/** 026 * Default implementation for re-establishing connection to driver after driver restart. 027 * In this default implementation, information about re-started driver will be obtained 028 * by querying Http server. 029 */ 030public final class DefaultDriverConnection implements DriverConnection { 031 032 private static final Logger LOG = Logger.getLogger(DefaultDriverConnection.class.getName()); 033 034 @Inject 035 public DefaultDriverConnection() { 036 } 037 038 @Override 039 public String getDriverRemoteIdentifier() { 040 LOG.log(Level.FINE, "Trying to get driver remote identifier by querying Http server."); 041 // TODO[JIRA REEF-843]: implement a proper mechanism to obtain driver remote identifier. 042 throw new UnsupportedOperationException("Not implemented"); 043 } 044 045 @Override 046 public void close() { 047 } 048}