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1   /*
2    * Copyright 2010 The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package org.apache.hadoop.hbase.client;
22  
23  import org.apache.hadoop.hbase.util.Bytes;
24  import org.apache.hadoop.io.Writable;
25  
26  import java.io.DataInput;
27  import java.io.DataOutput;
28  import java.io.IOException;
29  import java.util.Map;
30  import java.util.TreeMap;
31  
32  /**
33   * Response class for MultiPut.
34   */
35  public class MultiPutResponse implements Writable {
36  
37    protected MultiPut request; // used in client code ONLY
38  
39    protected Map<byte[], Integer> answers = new TreeMap<byte[], Integer>(Bytes.BYTES_COMPARATOR);
40  
41    public MultiPutResponse() {}
42  
43    public void addResult(byte[] regionName, int result) {
44      answers.put(regionName, result);
45    }
46  
47    public Integer getAnswer(byte[] region) {
48      return answers.get(region);
49    }
50  
51    @Override
52    public void write(DataOutput out) throws IOException {
53      out.writeInt(answers.size());
54      for( Map.Entry<byte[],Integer> e : answers.entrySet()) {
55        Bytes.writeByteArray(out, e.getKey());
56        out.writeInt(e.getValue());
57      }
58    }
59  
60    @Override
61    public void readFields(DataInput in) throws IOException {
62      answers.clear();
63  
64      int mapSize = in.readInt();
65      for( int i = 0 ; i < mapSize ; i++ ) {
66        byte[] key = Bytes.readByteArray(in);
67        int value = in.readInt();
68  
69        answers.put(key, value);
70      }
71    }
72  }