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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.job.JobProgressTracker;
22  
23  import java.io.IOException;
24  
25  /**
26   * Wrapper around JobProgressTracker which retries to connect and swallows
27   * exceptions so app wouldn't crash if something goes wrong with progress
28   * reports.
29   */
30  public interface JobProgressTrackerClient extends JobProgressTracker {
31    /** Close the connections if any */
32    void cleanup() throws IOException;
33  }