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BasicInputSplitsMasterOrganizer xref
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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.master.input;
20  
21  import java.util.List;
22  import java.util.concurrent.ConcurrentLinkedQueue;
23  
24  /**
25   * Input splits organizer for vertex and edge input splits on master, which
26   * doesn't use locality information
27   */
28  public class BasicInputSplitsMasterOrganizer
29      implements InputSplitsMasterOrganizer {
30    /** Available splits queue */
31    private final ConcurrentLinkedQueue<byte[]> splits;
32  
33    /**
34     * Constructor
35     *
36     * @param serializedSplits Splits
37     */
38    public BasicInputSplitsMasterOrganizer(List<byte[]> serializedSplits) {
39      splits = new ConcurrentLinkedQueue<>(serializedSplits);
40    }
41  
42    @Override
43    public byte[] getSerializedSplitFor(int workerTaskId) {
44      return splits.poll();
45    }
46  }