Example usage for org.apache.hadoop.io DataOutputBuffer getLength

Introduction

In this page you can find the example usage for org.apache.hadoop.io DataOutputBuffer getLength.

Prototype

public int getLength()

Source Link

Document

Returns the length of the valid data currently in the buffer.

Usage

From source file:org.apache.accumulo.core.replication.ReplicationTarget.java

License:Apache License

/**
 * Convenience method to serialize a ReplicationTarget to {@link Text} using the {@link Writable} methods without caring about performance penalties due to
 * excessive object creation//from w ww  .j a va2s.co  m
 *
 * @return The serialized representation of the object
 */
public Text toText() {
    DataOutputBuffer buffer = new DataOutputBuffer();

    try {
        this.write(buffer);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    Text t = new Text();
    // Throw it in a text for the mutation
    t.set(buffer.getData(), 0, buffer.getLength());
    return t;
}

From source file:org.apache.accumulo.core.replication.ReplicationTargetTest.java

License:Apache License

@Test
public void writableOut() throws Exception {
    ReplicationTarget expected = new ReplicationTarget("foo", "bar", "1");
    DataOutputBuffer buffer = new DataOutputBuffer();
    expected.write(buffer);//from ww w .j  a  va2 s.c o m

    DataInputBuffer input = new DataInputBuffer();
    input.reset(buffer.getData(), buffer.getLength());
    ReplicationTarget actual = new ReplicationTarget();
    actual.readFields(input);
}

From source file:org.apache.accumulo.core.replication.ReplicationTargetTest.java

License:Apache License

@Test
public void writableOutWithNulls() throws Exception {
    ReplicationTarget expected = new ReplicationTarget(null, null, null);
    DataOutputBuffer buffer = new DataOutputBuffer();
    expected.write(buffer);//from w w  w .  ja va  2  s  .  com

    DataInputBuffer input = new DataInputBuffer();
    input.reset(buffer.getData(), buffer.getLength());
    ReplicationTarget actual = new ReplicationTarget();
    actual.readFields(input);
}

From source file:org.apache.accumulo.core.replication.ReplicationTargetTest.java

License:Apache License

@Test
public void staticFromTextHelper() throws Exception {
    ReplicationTarget expected = new ReplicationTarget("foo", "bar", "1");
    DataOutputBuffer buffer = new DataOutputBuffer();
    expected.write(buffer);//  www.j a va  2s . com
    Text t = new Text();
    t.set(buffer.getData(), 0, buffer.getLength());

    Assert.assertEquals(expected, ReplicationTarget.from(t));
}

From source file:org.apache.accumulo.core.replication.ReplicationTargetTest.java

License:Apache License

@Test
public void staticToTextHelper() throws Exception {
    ReplicationTarget expected = new ReplicationTarget("foo", "bar", "1");
    DataOutputBuffer buffer = new DataOutputBuffer();
    expected.write(buffer);/*  w ww . j  a  va  2  s  .c o m*/
    Text t = new Text();
    t.set(buffer.getData(), 0, buffer.getLength());

    Assert.assertEquals(t, expected.toText());
}

From source file:org.apache.accumulo.core.replication.ReplicationTargetTest.java

License:Apache License

@Test
public void staticFromStringHelper() throws Exception {
    ReplicationTarget expected = new ReplicationTarget("foo", "bar", "1");
    DataOutputBuffer buffer = new DataOutputBuffer();
    expected.write(buffer);/*w w  w  .j a  v a2 s  . co m*/
    Text t = new Text();
    t.set(buffer.getData(), 0, buffer.getLength());

    Assert.assertEquals(expected, ReplicationTarget.from(t.toString()));
}

From source file:org.apache.accumulo.core.tabletserver.log.LogEntry.java

License:Apache License

public byte[] toBytes() throws IOException {
    DataOutputBuffer out = new DataOutputBuffer();
    extent.write(out);/*  w  w  w .  j  a  v a  2 s  .c  o m*/
    out.writeLong(timestamp);
    out.writeUTF(server);
    out.writeUTF(filename);
    return Arrays.copyOf(out.getData(), out.getLength());
}

From source file:org.apache.accumulo.master.replication.WorkMaker.java

License:Apache License

protected void addWorkRecord(Text file, Value v, Map<String, String> targets, String sourceTableId) {
    log.info("Adding work records for " + file + " to targets " + targets);
    try {//from ww  w . ja  v  a2s .co m
        Mutation m = new Mutation(file);

        ReplicationTarget target = new ReplicationTarget();
        DataOutputBuffer buffer = new DataOutputBuffer();
        Text t = new Text();
        for (Entry<String, String> entry : targets.entrySet()) {
            buffer.reset();

            // Set up the writable
            target.setPeerName(entry.getKey());
            target.setRemoteIdentifier(entry.getValue());
            target.setSourceTableId(sourceTableId);
            target.write(buffer);

            // Throw it in a text for the mutation
            t.set(buffer.getData(), 0, buffer.getLength());

            // Add it to the work section
            WorkSection.add(m, t, v);
        }
        try {
            writer.addMutation(m);
        } catch (MutationsRejectedException e) {
            log.warn("Failed to write work mutations for replication, will retry", e);
        }
    } catch (IOException e) {
        log.warn("Failed to serialize data to Text, will retry", e);
    } finally {
        try {
            writer.flush();
        } catch (MutationsRejectedException e) {
            log.warn("Failed to write work mutations for replication, will retry", e);
        }
    }
}

From source file:org.apache.accumulo.master.state.MergeInfoTest.java

License:Apache License

MergeInfo readWrite(MergeInfo info) throws Exception {
    DataOutputBuffer buffer = new DataOutputBuffer();
    info.write(buffer);/*from w w  w.  j a va2 s  .c o m*/
    DataInputBuffer in = new DataInputBuffer();
    in.reset(buffer.getData(), 0, buffer.getLength());
    MergeInfo info2 = new MergeInfo();
    info2.readFields(in);
    Assert.assertEquals(info.getExtent(), info2.getExtent());
    Assert.assertEquals(info.getState(), info2.getState());
    Assert.assertEquals(info.getOperation(), info2.getOperation());
    return info2;
}

From source file:org.apache.accumulo.server.master.state.MergeInfoTest.java

License:Apache License

private static MergeInfo readWrite(MergeInfo info) throws Exception {
    DataOutputBuffer buffer = new DataOutputBuffer();
    info.write(buffer);/*from w w  w.j ava2  s.  c o  m*/
    DataInputBuffer in = new DataInputBuffer();
    in.reset(buffer.getData(), 0, buffer.getLength());
    MergeInfo info2 = new MergeInfo();
    info2.readFields(in);
    assertEquals(info.getExtent(), info2.getExtent());
    assertEquals(info.getState(), info2.getState());
    assertEquals(info.getOperation(), info2.getOperation());
    return info2;
}