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/tags/release-0.1-rc2/hive/external/serde/src/java/org/apache/hadoop/hive/serde2/dynamic_type/DynamicSerDeTypei64.java

#
Java | 78 lines | 45 code | 11 blank | 22 comment | 4 complexity | 2d5b0ff11cf91573a6d4eab164f894d8 MD5 | raw file
 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
19package org.apache.hadoop.hive.serde2.dynamic_type;
20
21import org.apache.hadoop.hive.serde2.SerDeException;
22import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
23import org.apache.hadoop.hive.serde2.objectinspector.primitive.LongObjectInspector;
24import org.apache.thrift.TException;
25import org.apache.thrift.protocol.TProtocol;
26import org.apache.thrift.protocol.TType;
27
28/**
29 * DynamicSerDeTypei64.
30 *
31 */
32public class DynamicSerDeTypei64 extends DynamicSerDeTypeBase {
33
34  @Override
35  public Class getRealType() {
36    return Long.valueOf(0).getClass();
37  }
38
39  // production is: i64
40
41  public DynamicSerDeTypei64(int i) {
42    super(i);
43  }
44
45  public DynamicSerDeTypei64(thrift_grammar p, int i) {
46    super(p, i);
47  }
48
49  @Override
50  public String toString() {
51    return "i64";
52  }
53
54  @Override
55  public Object deserialize(Object reuse, TProtocol iprot)
56      throws SerDeException, TException, IllegalAccessException {
57    long val = iprot.readI64();
58    if (val == 0
59        && iprot instanceof org.apache.hadoop.hive.serde2.thrift.WriteNullsProtocol
60        && ((org.apache.hadoop.hive.serde2.thrift.WriteNullsProtocol) iprot)
61        .lastPrimitiveWasNull()) {
62      return null;
63    }
64    return Long.valueOf(val);
65  }
66
67  @Override
68  public void serialize(Object o, ObjectInspector oi, TProtocol oprot)
69      throws TException, SerDeException, NoSuchFieldException, IllegalAccessException {
70    LongObjectInspector poi = (LongObjectInspector) oi;
71    oprot.writeI64(poi.get(o));
72  }
73
74  @Override
75  public byte getType() {
76    return TType.I64;
77  }
78}