Example usage for org.apache.hadoop.io Writable write

Introduction

In this page you can find the example usage for org.apache.hadoop.io Writable write.

Prototype

void write(DataOutput out) throws IOException;

Source Link

Document

Serialize the fields of this object to out.

Usage

From source file:net.sf.katta.zk.ZKClient.java

License:Apache License

private byte[] writableToByteArray(final Writable writable) throws KattaException {
    byte[] data = new byte[0];
    if (writable != null) {
        final DataOutputBuffer out = new DataOutputBuffer();
        try {//from  w w  w  .j  ava2s  . c o  m
            writable.write(out);
        } catch (final IOException e) {
            throw new KattaException("unable to serialize writable", e);
        }
        data = out.getData();
    }
    return data;
}

From source file:nl.basjes.utils.TestWritableInterface.java

License:Apache License

/**
 * Converts an instance of Writable into a byte[].
 * @param writable/*w  w  w .jav  a 2s  .c  o  m*/
 * @return
 * @throws IOException
 */
public static byte[] serialize(Writable writable) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    DataOutputStream dataOut = null;
    try {
        dataOut = new DataOutputStream(out);
        writable.write(dataOut);
        return out.toByteArray();
    } finally {
        IOUtils.closeStream(dataOut);
    }
}

From source file:org.apache.accumulo.core.client.mapreduce.lib.impl.InputConfigurator.java

License:Apache License

private static String toBase64(Writable writable) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    try {/*from w w  w  .  j  a v  a  2  s .com*/
        writable.write(dos);
        dos.close();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    return Base64.getEncoder().encodeToString(baos.toByteArray());
}

From source file:org.apache.accumulo.server.tabletserver.log.MultiReader.java

License:Apache License

private static void copy(Writable src, Writable dest) throws IOException {
    // not exactly efficient...
    DataOutputBuffer output = new DataOutputBuffer();
    src.write(output);
    DataInputBuffer input = new DataInputBuffer();
    input.reset(output.getData(), output.getLength());
    dest.readFields(input);/*from  www .  j av  a 2  s .c  om*/
}

From source file:org.apache.accumulo.test.util.SerializationUtil.java

License:Apache License

public static void serializeWritable(Writable obj, OutputStream outputStream) {
    Objects.requireNonNull(obj);/*from  ww w. j av a2s  .  co  m*/
    Objects.requireNonNull(outputStream);
    DataOutputStream out = null;
    try {
        out = new DataOutputStream(outputStream);
        obj.write(out);
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    } finally {
        if (out != null)
            try {
                out.close();
            } catch (IOException e) {
                log.error("cannot close", e);
            }
    }
}

From source file:org.apache.crunch.impl.spark.serde.WritableSerDe.java

License:Apache License

@Override
public byte[] toBytes(Writable obj) throws Exception {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    obj.write(dos);
    dos.close();// w ww  .  j a  v  a  2  s .c o  m
    return baos.toByteArray();
}

From source file:org.apache.crunch.test.Tests.java

License:Apache License

/**
 * Serialize the given Writable into a byte array.
 *
 * @param value The instance to serialize
 * @return The serialized data//from w w w . j  a va  2 s  .co  m
 */
public static byte[] serialize(Writable value) {
    checkNotNull(value);
    try {
        ByteArrayDataOutput out = ByteStreams.newDataOutput();
        value.write(out);
        return out.toByteArray();
    } catch (IOException e) {
        throw new IllegalStateException("cannot serialize", e);
    }
}

From source file:org.apache.eagle.storage.hbase.query.coprocessor.ProtoBufConverter.java

License:Apache License

public static ByteString writableToByteString(Writable writable) throws IOException {
    ByteArrayDataOutput dataOutput = ByteStreams.newDataOutput();
    writable.write(dataOutput);
    return ByteString.copyFrom(dataOutput.toByteArray());
}

From source file:org.apache.flink.hadoopcompatibility.mapreduce.wrapper.HadoopInputSplit.java

License:Apache License

@Override
public void write(DataOutputView out) throws IOException {
    out.writeInt(this.splitNumber);
    out.writeUTF(this.mapreduceInputSplit.getClass().getName());
    Writable w = (Writable) this.mapreduceInputSplit;
    w.write(out);
}

From source file:org.apache.flume.channel.file.TestUtils.java

License:Apache License

public static DataInput toDataInput(Writable writable) throws IOException {
    ByteArrayOutputStream byteOutput = new ByteArrayOutputStream();
    DataOutputStream dataOutput = new DataOutputStream(byteOutput);
    writable.write(dataOutput);
    ByteArrayInputStream byteInput = new ByteArrayInputStream(byteOutput.toByteArray());
    DataInputStream dataInput = new DataInputStream(byteInput);
    return dataInput;
}