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BigDataInputOutput 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.utils.io;
20  
21  import org.apache.giraph.conf.ImmutableClassesGiraphConfiguration;
22  import org.apache.giraph.utils.ExtendedDataInput;
23  
24  import java.io.DataInput;
25  import java.io.DataOutput;
26  import java.io.IOException;
27  
28  /**
29   * {@link DataInputOutput} which uses {@link BigDataInput} and {@link
30   * BigDataOutput} to support larger than allowed array size streams.
31   */
32  public class BigDataInputOutput extends DataInputOutput {
33    /** DataOutput which we write to */
34    private BigDataOutput dataOutput;
35  
36    /**
37     * Constructor
38     *
39     * @param conf Configuration
40     */
41    public BigDataInputOutput(ImmutableClassesGiraphConfiguration conf) {
42      dataOutput = new BigDataOutput(conf);
43    }
44  
45    @Override
46    public DataOutput getDataOutput() {
47      return dataOutput;
48    }
49  
50    @Override
51    public ExtendedDataInput createDataInput() {
52      return new BigDataInput(dataOutput);
53    }
54  
55    @Override
56    public void write(DataOutput out) throws IOException {
57      dataOutput.write(out);
58    }
59  
60    @Override
61    public void readFields(DataInput in) throws IOException {
62      dataOutput.readFields(in);
63    }
64  }