1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.giraph.graph; 20 21 import org.apache.giraph.conf.GiraphConfiguration; 22 import org.apache.giraph.job.JobProgressTracker; 23 24 import java.io.IOException; 25 26 /** 27 * Wrapper around JobProgressTracker which retries to connect and swallows 28 * exceptions so app wouldn't crash if something goes wrong with progress 29 * reports. 30 */ 31 public interface JobProgressTrackerClient extends JobProgressTracker { 32 /** Close the connections if any */ 33 void cleanup() throws IOException; 34 35 /** 36 * Initialize the client. 37 * @param conf Job configuration 38 * @throws Exception 39 */ 40 void init(GiraphConfiguration conf) throws Exception; 41 }