Example usage for org.apache.hadoop.io.serializer WritableSerialization WritableSerialization

Introduction

In this page you can find the example usage for org.apache.hadoop.io.serializer WritableSerialization WritableSerialization.

Prototype

WritableSerialization

Source Link

Usage

From source file:org.apache.ignite.internal.processors.hadoop.GridHadoopSerializationWrapperSelfTest.java

License:Apache License

/**
 * Tests read/write of IntWritable via native WritableSerialization.
 * @throws Exception If fails./*from   www.  j a  v a 2s . c  o m*/
 */
public void testIntWritableSerialization() throws Exception {
    GridHadoopSerialization ser = new GridHadoopSerializationWrapper(new WritableSerialization(),
            IntWritable.class);

    ByteArrayOutputStream buf = new ByteArrayOutputStream();

    DataOutput out = new DataOutputStream(buf);

    ser.write(out, new IntWritable(3));
    ser.write(out, new IntWritable(-5));

    assertEquals("[0, 0, 0, 3, -1, -1, -1, -5]", Arrays.toString(buf.toByteArray()));

    DataInput in = new DataInputStream(new ByteArrayInputStream(buf.toByteArray()));

    assertEquals(3, ((IntWritable) ser.read(in, null)).get());
    assertEquals(-5, ((IntWritable) ser.read(in, null)).get());
}

---

From source file:org.apache.ignite.internal.processors.hadoop.HadoopSerializationWrapperSelfTest.java

License:Apache License

/**
 * Tests read/write of IntWritable via native WritableSerialization.
 * @throws Exception If fails.//  w  ww .j  a v  a  2 s.  co m
 */
public void testIntWritableSerialization() throws Exception {
    HadoopSerialization ser = new HadoopSerializationWrapper(new WritableSerialization(), IntWritable.class);

    ByteArrayOutputStream buf = new ByteArrayOutputStream();

    DataOutput out = new DataOutputStream(buf);

    ser.write(out, new IntWritable(3));
    ser.write(out, new IntWritable(-5));

    assertEquals("[0, 0, 0, 3, -1, -1, -1, -5]", Arrays.toString(buf.toByteArray()));

    DataInput in = new DataInputStream(new ByteArrayInputStream(buf.toByteArray()));

    assertEquals(3, ((IntWritable) ser.read(in, null)).get());
    assertEquals(-5, ((IntWritable) ser.read(in, null)).get());
}

---