Package org.apache.hadoop.io.serializer

Examples of org.apache.hadoop.io.serializer.Deserializer

84
85
86
87
88
89
90
91
92
93
94
  }

  public void readFields(ITuple tuple, Deserializer[] customDeserializers) throws IOException {
    Schema schema = tuple.getSchema();
    for(int index = 0; index < schema.getFields().size(); index++) {
      Deserializer customDeser = customDeserializers[index];
      Field field = schema.getField(index);
      switch(field.getType()) {
      case INT:
        tuple.set(index, WritableUtils.readVInt(input));
        break;
View Full Code Here
120
121
122
123
124
125
126
127
128
    inputFormatClass = (Class<? extends InputFormat<?, ?>>) readClass(in);
    mapperClass = (Class<? extends Mapper<?, ?, ?, ?>>) readClass(in);
    inputSplit = (InputSplit) ReflectionUtils
       .newInstance(inputSplitClass, conf);
    SerializationFactory factory = new SerializationFactory(conf);
    Deserializer deserializer = factory.getDeserializer(inputSplitClass);
    deserializer.open((DataInputStream)in);
    inputSplit = (InputSplit)deserializer.deserialize(inputSplit);
  }
View Full Code Here
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
        String splitClassName = is.readUTF();
        try {
            Class splitClass = conf.getClassByName(splitClassName);
            SerializationFactory sf = new SerializationFactory(conf);
            // The correct call sequence for Deserializer is, we shall open, then deserialize, but we shall not close
            Deserializer d = sf.getDeserializer(splitClass);
            d.open((InputStream) is);
            wrappedSplits = new InputSplit[splitLen];
            for (int i = 0; i < splitLen; i++)
            {
                wrappedSplits[i] = (InputSplit)ReflectionUtils.newInstance(splitClass, conf);
                d.deserialize(wrappedSplits[i]);
            }
        } catch (ClassNotFoundException e) {
            throw new IOException(e);
        }
       
View Full Code Here
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
    }

    Class klazz = obj.getClass();
    Object out = null;
    Serializer s = serializationFactory.getSerializer(klazz);
    Deserializer ds = serializationFactory.getDeserializer(klazz);

    try {
      s.open(outBuffer);
      ds.open(inBuffer);

      outBuffer.reset();
      s.serialize(obj);

      byte [] data = outBuffer.getData();
      int len = outBuffer.getLength();
      inBuffer.reset(data, len);

      out = ds.deserialize(out);

      return out;
    } finally {
      try {
        s.close();
      } catch (IOException ioe) {
        // ignore this; we're closing.
      }

      try {
        ds.close();
      } catch (IOException ioe) {
        // ignore this; we're closing.
      }
    }
  }
View Full Code Here
121
122
123
124
125
126
127
128
129
    inputFormatClass = (Class<? extends InputFormat<?, ?>>) readClass(in);
    mapperClass = (Class<? extends Mapper<?, ?, ?, ?>>) readClass(in);
    inputSplit = (InputSplit) ReflectionUtils
       .newInstance(inputSplitClass, conf);
    SerializationFactory factory = new SerializationFactory(conf);
    Deserializer deserializer = factory.getDeserializer(inputSplitClass);
    deserializer.open((DataInputStream)in);
    inputSplit = (InputSplit)deserializer.deserialize(inputSplit);
  }
View Full Code Here
87
88
89
90
91
92
93
94
95
    conf.readFields(in);
    inputFormatClass = (Class<? extends InputFormat<?, ?>>) readClass(in);
    Class<? extends InputSplit> inputSplitClass = (Class<? extends InputSplit>) readClass(in);
    inputSplit = (InputSplit) ReflectionUtils.newInstance(inputSplitClass, conf);
    SerializationFactory factory = new SerializationFactory(conf);
    Deserializer deserializer = factory.getDeserializer(inputSplitClass);
    deserializer.open((DataInputStream) in);
    inputSplit = (InputSplit) deserializer.deserialize(inputSplit);
  }
View Full Code Here
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
    }

    Class klazz = obj.getClass();
    Object out = null;
    Serializer s = serializationFactory.getSerializer(klazz);
    Deserializer ds = serializationFactory.getDeserializer(klazz);

    try {
      s.open(outBuffer);
      ds.open(inBuffer);

      outBuffer.reset();
      s.serialize(obj);

      byte [] data = outBuffer.getData();
      int len = outBuffer.getLength();
      inBuffer.reset(data, len);

      out = ds.deserialize(out);

      return out;
    } finally {
      try {
        s.close();
      } catch (IOException ioe) {
        // ignore this; we're closing.
      }

      try {
        ds.close();
      } catch (IOException ioe) {
        // ignore this; we're closing.
      }
    }
  }
View Full Code Here
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
        if (writableVersionOfClazz != null) {
          clazz = writableVersionOfClazz;
        }

        // Now deserialize using the hadoop deserializer.
        Deserializer deserializer = getNewDeserializer(clazz);
        deserializer.open(new ByteArrayInputStream(bytes));
        Object o = clazz.newInstance();
        o = deserializer.deserialize(o);
        deserializer.close();

        if (writableVersionOfClazz != null) {
          return fromWritable(o);
        } else {
          return o;
View Full Code Here
102
103
104
105
106
107
108
109
110
    inputFormatFile = Text.readString(in);
    inputProcessorFile = Text.readString(in);
    inputSplit = (InputSplit) ReflectionUtils
       .newInstance(inputSplitClass, conf);
    SerializationFactory factory = new SerializationFactory(conf);
    Deserializer deserializer = factory.getDeserializer(inputSplitClass);
    deserializer.open((DataInputStream)in);
    inputSplit = (InputSplit)deserializer.deserialize(inputSplit);
  }
View Full Code Here
189
190
191
192
193
194
195
196
197
198
199
      }
    }

    // Field by field deserialization
    for(int index = 0; index < schema.getFields().size(); index++) {
      Deserializer customDeser = customDeserializers[index];
      Field field = schema.getField(index);

      // Nulls control
      if(field.isNullable() && nullsAbsolute.flags[index]) {
        // Null field. Nothing to deserialize.
View Full Code Here
TOP

Related Classes of org.apache.hadoop.io.serializer.Deserializer

  • cascading.tuple.hadoop.TupleSerialization
  • cascading.tuple.hadoop.TupleSerialization$SerializationElementReader
  • com.datasalt.pangool.serialization.HadoopSerialization
  • com.datasalt.pangool.tuplemr.mapred.lib.input.TaggedInputSplit
  • com.datasalt.pangool.tuplemr.serialization.SimpleTupleDeserializer
  • com.datasalt.pangool.tuplemr.serialization.TupleDeserializer
  • com.datasalt.pangool.utils.AvroRecordToTupleConverter
  • com.tellapart.cascading.hbase.HBaseSerialization
  • org.apache.crunch.impl.mr.run.CrunchInputSplit
  • org.apache.hadoop.mapreduce.lib.input.TaggedInputSplit
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.