Example usage for org.apache.hadoop.io WritableUtils writeString

Introduction

In this page you can find the example usage for org.apache.hadoop.io WritableUtils writeString.

Prototype

public static void writeString(DataOutput out, String s) throws IOException

Source Link

Usage

From source file:org.apache.accumulo.core.client.IteratorSetting.java

License:Apache License

/**
 * @since 1.5.0//from   ww  w. j  a v  a2  s  .  c o  m
 * @see Writable
 */
@Override
public void write(DataOutput dout) throws IOException {
    WritableUtils.writeVInt(dout, priority);
    WritableUtils.writeString(dout, name);
    WritableUtils.writeString(dout, iteratorClass);
    WritableUtils.writeVInt(dout, properties.size());
    for (Entry<String, String> e : properties.entrySet()) {
        WritableUtils.writeString(dout, e.getKey());
        WritableUtils.writeString(dout, e.getValue());
    }
}

From source file:org.apache.accumulo.core.data.Mutation.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    serialize();/*from  w  w w.j  a v a  2  s.  c om*/
    byte hasValues = (values == null) ? 0 : (byte) 1;
    if (!replicationSources.isEmpty()) {
        // Use 2nd least-significant bit for whether or not we have replication sources
        hasValues = (byte) (0x02 | hasValues);
    }
    out.write((byte) (0x80 | hasValues));

    WritableUtils.writeVInt(out, row.length);
    out.write(row);

    WritableUtils.writeVInt(out, data.length);
    out.write(data);
    WritableUtils.writeVInt(out, entries);

    if (0x01 == (0x01 & hasValues)) {
        WritableUtils.writeVInt(out, values.size());
        for (int i = 0; i < values.size(); i++) {
            byte val[] = values.get(i);
            WritableUtils.writeVInt(out, val.length);
            out.write(val);
        }
    }
    if (0x02 == (0x02 & hasValues)) {
        WritableUtils.writeVInt(out, replicationSources.size());
        for (String source : replicationSources) {
            WritableUtils.writeString(out, source);
        }
    }
}

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

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    if (null == peerName) {
        out.writeBoolean(false);//from  ww  w  . j a va  2s.c o m
    } else {
        out.writeBoolean(true);
        WritableUtils.writeString(out, peerName);
    }

    if (null == remoteIdentifier) {
        out.writeBoolean(false);
    } else {
        out.writeBoolean(true);
        WritableUtils.writeString(out, remoteIdentifier);
    }

    if (null == sourceTableId) {
        out.writeBoolean(false);
    } else {
        out.writeBoolean(true);
        WritableUtils.writeString(out, sourceTableId);
    }
}

From source file:org.apache.giraph.jython.wrappers.JythonWritableWrapper.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    PyString pyString;/*from   w  w w. j a  va2  s. c  o  m*/
    try {
        pyString = cPickle.dumps(getPyObject());
    } catch (PyException e) {
        LOG.fatal("Could not serialize wrapped Jython value: " + getPyObject().__str__());
        throw e;
    }
    WritableUtils.writeString(out, pyString.getString());
}

From source file:org.apache.gora.infinispan.query.InfinispanQuery.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    super.write(out);
    WritableUtils.writeString(out, getSortingField());
    out.writeBoolean(isAscendant);/*  w  w  w .j a va 2 s.  c om*/
    if (location != null)
        WritableUtils.writeString(out, location.getHostName() + ADDR_DELIMITATOR + location.getPort());
    else
        WritableUtils.writeString(out, "");
}

From source file:org.apache.hama.bsp.TaskCompletionEvent.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    taskId.write(out);/*  w ww . j  ava2s  . c o m*/
    WritableUtils.writeVInt(out, idWithinJob);
    WritableUtils.writeEnum(out, status);
    WritableUtils.writeString(out, groomServerInfo);
    WritableUtils.writeVInt(out, taskRunTime);
    WritableUtils.writeVInt(out, eventId);
}

From source file:org.apache.hama.ipc.AsyncServer.java

License:Apache License

/**
 * Setup response for the IPC Call.//from w w  w  . j a  v  a  2  s.  c  o m
 * 
 * @param response buffer to serialize the response into
 * @param call {@link Call} to which we are setting up the response
 * @param status {@link Status} of the IPC call
 * @param rv return value for the IPC Call, if the call was successful
 * @param errorClass error class, if the the call failed
 * @param error error message, if the call failed
 * @throws IOException
 */
private void setupResponse(ByteArrayOutputStream response, Call call, Status status, Writable rv,
        String errorClass, String error) throws IOException {
    response.reset();
    DataOutputStream out = new DataOutputStream(response);
    out.writeInt(call.id); // write call id
    out.writeInt(status.state); // write status

    if (status == Status.SUCCESS) {
        rv.write(out);
    } else {
        WritableUtils.writeString(out, errorClass);
        WritableUtils.writeString(out, error);
    }
    call.setResponse(ByteBuffer.wrap(response.toByteArray()));
    IOUtils.closeStream(out);
}

From source file:org.apache.hama.ipc.Server.java

License:Apache License

/**
 * Setup response for the IPC Call.//from w w w. j  ava 2s  . c  o m
 * 
 * @param response buffer to serialize the response into
 * @param call {@link Call} to which we are setting up the response
 * @param status {@link Status} of the IPC call
 * @param rv return value for the IPC Call, if the call was successful
 * @param errorClass error class, if the the call failed
 * @param error error message, if the call failed
 * @throws IOException
 */
private void setupResponse(ByteArrayOutputStream response, Call call, Status status, Writable rv,
        String errorClass, String error) throws IOException {
    response.reset();
    DataOutputStream out = new DataOutputStream(response);
    out.writeInt(call.id); // write call id
    out.writeInt(status.state); // write status

    if (status == Status.SUCCESS) {
        rv.write(out);
    } else {
        WritableUtils.writeString(out, errorClass);
        WritableUtils.writeString(out, error);
    }
    call.setResponse(ByteBuffer.wrap(response.toByteArray()));
}

From source file:org.apache.hama.ml.ann.AbstractLayeredNeuralNetwork.java

License:Apache License

@Override
public void write(DataOutput output) throws IOException {
    super.write(output);
    // write regularization weight
    output.writeDouble(this.regularizationWeight);
    // write momentum weight
    output.writeDouble(this.momentumWeight);

    // write cost function
    WritableUtils.writeString(output, costFunction.getFunctionName());

    // write layer size list
    output.writeInt(this.layerSizeList.size());
    for (Integer aLayerSizeList : this.layerSizeList) {
        output.writeInt(aLayerSizeList);
    }/* w w  w .  j  a v a 2s.  c o m*/

    WritableUtils.writeEnum(output, this.trainingMethod);
    WritableUtils.writeEnum(output, this.learningStyle);
}

From source file:org.apache.hama.ml.ann.NeuralNetwork.java

License:Apache License

@Override
public void write(DataOutput output) throws IOException {
    // write model type
    WritableUtils.writeString(output, modelType);
    // write learning rate
    output.writeDouble(learningRate);//w  ww  .  ja  va  2s .  co  m
    // write model path
    if (this.modelPath != null) {
        WritableUtils.writeString(output, modelPath);
    } else {
        WritableUtils.writeString(output, "null");
    }

    // serialize the class
    Class<? extends FeatureTransformer> featureTransformerCls = this.featureTransformer.getClass();
    byte[] featureTransformerBytes = SerializationUtils.serialize(featureTransformerCls);
    output.writeInt(featureTransformerBytes.length);
    output.write(featureTransformerBytes);
}