Example usage for java.io DataOutput writeInt

Introduction

In this page you can find the example usage for java.io DataOutput writeInt.

Prototype

void writeInt(int v) throws IOException;

Source Link

Document

Writes an int value, which is comprised of four bytes, to the output stream.

Usage

From source file:org.apache.hadoop.hdfs.protocol.LocatedBlocks.java

public void write(DataOutput out) throws IOException {
    out.writeLong(this.fileLength);
    out.writeBoolean(underConstruction);
    // write located blocks
    int nrBlocks = locatedBlockCount();
    out.writeInt(nrBlocks);
    if (nrBlocks == 0) {
        return;// ww w .  j  av a 2s  . com
    }
    for (LocatedBlock blk : this.blocks) {
        blk.write(out);
    }
}

From source file:org.apache.mahout.classifier.chi_rw.data.Dataset.java

@Override
public void write(DataOutput out) throws IOException {
    out.writeInt(attributes.length); // nb attributes
    for (Attribute attr : attributes) {
        WritableUtils.writeString(out, attr.name());
    }/*from w w  w . ja v a 2 s . c o  m*/

    Chi_RWUtils.writeArray(out, ignored);

    // only CATEGORICAL attributes have values
    for (String[] vals : values) {
        if (vals != null) {
            WritableUtils.writeStringArray(out, vals);
        }
    }

    // only NUMERICAL attributes have values
    for (double[] vals : nvalues) {
        if (vals != null) {
            Chi_RWUtils.writeArray(out, vals);
        }
    }

    for (double[] vals : minmaxvalues) {
        if (vals != null) {
            Chi_RWUtils.writeArray(out, vals);
        }
    }

    out.writeInt(labelId);
    out.writeInt(nbInstances);
}

From source file:org.apache.mahout.classifier.chi_rwcs.data.Dataset.java

@Override
public void write(DataOutput out) throws IOException {
    out.writeInt(attributes.length); // nb attributes
    for (Attribute attr : attributes) {
        WritableUtils.writeString(out, attr.name());
    }//w w w.  j  a v a2s.  c om

    Chi_RWCSUtils.writeArray(out, ignored);

    // only CATEGORICAL attributes have values
    for (String[] vals : values) {
        if (vals != null) {
            WritableUtils.writeStringArray(out, vals);
        }
    }

    // only NUMERICAL attributes have values
    for (double[] vals : nvalues) {
        if (vals != null) {
            DFUtils.writeArray(out, vals);
        }
    }

    for (double[] vals : minmaxvalues) {
        if (vals != null) {
            DFUtils.writeArray(out, vals);
        }
    }

    out.writeInt(labelId);
    out.writeInt(nbInstances);
}

From source file:com.chinamobile.bcbsp.util.StaffStatus.java

/** serialize
 * write this object to out./*from w ww. j av  a  2  s. c om*/
 *
 * @param out Writes to the output stream.
 */
@Override
public void write(DataOutput out) throws IOException {
    jobId.write(out);
    staffId.write(out);
    out.writeInt(progress);
    WritableUtils.writeEnum(out, runState);
    Text.writeString(out, stateString);
    WritableUtils.writeEnum(out, phase);
    out.writeLong(startTime);
    out.writeLong(finishTime);
    out.writeLong(superstepCount);
    if (this.faultFlag == 0) {
        out.writeInt(this.faultFlag);
    } else {
        out.writeInt(this.faultFlag);
        this.fault.write(out);
    }
    out.writeBoolean(recovery);
    out.writeLong(this.currentSSTime);
    Text.writeString(out, workerManager);
}

From source file:org.apache.hadoop.hbase.io.BatchUpdate.java

public void write(final DataOutput out) throws IOException {
    Bytes.writeByteArray(out, this.row);
    out.writeLong(timestamp);//from   www.  j  a va 2 s  .  c o  m
    out.writeLong(this.size);
    out.writeInt(operations.size());
    for (BatchOperation op : operations) {
        op.write(out);
    }
    out.writeLong(this.rowLock);
}

From source file:com.mongodb.hadoop.mapred.input.MongoInputSplit.java

/**
 * Serialize the Split instance/*from   ww w .  j  a v a 2 s. c  o  m*/
 */

public void write(DataOutput out) throws IOException {
    final ObjectOutputStream objOut = new ObjectOutputStream((OutputStream) out);
    // TODO - Use object outputstream instead of going to <-> from string?
    out.writeUTF(_mongoURI.toString());

    out.writeUTF(JSON.serialize(_querySpec));
    out.writeUTF(JSON.serialize(_fieldSpec));
    out.writeUTF(JSON.serialize(_sortSpec));
    out.writeInt(_limit);
    out.writeInt(_skip);
    objOut.close();
}

From source file:org.apache.hadoop.hive.accumulo.AccumuloHiveRow.java

@Override
public void write(DataOutput dataOutput) throws IOException {
    if (null != rowId) {
        dataOutput.writeBoolean(true);//w  ww .j  a  v a 2s . c  o  m
        dataOutput.writeUTF(rowId);
    } else {
        dataOutput.writeBoolean(false);
    }
    int size = tuples.size();
    dataOutput.writeInt(size);
    for (ColumnTuple tuple : tuples) {
        Text cf = tuple.getCf(), cq = tuple.getCq();
        dataOutput.writeInt(cf.getLength());
        dataOutput.write(cf.getBytes(), 0, cf.getLength());
        dataOutput.writeInt(cq.getLength());
        dataOutput.write(cq.getBytes(), 0, cq.getLength());
        byte[] value = tuple.getValue();
        dataOutput.writeInt(value.length);
        dataOutput.write(value);
    }
}

From source file:org.apache.hadoop.hive.ql.io.orc.OrcSplit.java

@Override
public void write(DataOutput out) throws IOException {
    //serialize path, offset, length using FileSplit
    super.write(out);

    int flags = (hasBase ? BASE_FLAG : 0) | (isOriginal ? ORIGINAL_FLAG : 0) | (hasFooter ? FOOTER_FLAG : 0)
            | (fileId != null ? HAS_FILEID_FLAG : 0);
    out.writeByte(flags);/*  w  w  w . ja  v a 2s. c  om*/
    out.writeInt(deltas.size());
    for (AcidInputFormat.DeltaMetaData delta : deltas) {
        delta.write(out);
    }
    if (hasFooter) {
        // serialize FileMetaInfo fields
        Text.writeString(out, fileMetaInfo.compressionType);
        WritableUtils.writeVInt(out, fileMetaInfo.bufferSize);
        WritableUtils.writeVInt(out, fileMetaInfo.metadataSize);

        // serialize FileMetaInfo field footer
        ByteBuffer footerBuff = fileMetaInfo.footerBuffer;
        footerBuff.reset();

        // write length of buffer
        WritableUtils.writeVInt(out, footerBuff.limit() - footerBuff.position());
        out.write(footerBuff.array(), footerBuff.position(), footerBuff.limit() - footerBuff.position());
        WritableUtils.writeVInt(out, fileMetaInfo.writerVersion.getId());
    }
    if (fileId != null) {
        out.writeLong(fileId.longValue());
    }
}

From source file:org.kiji.schema.mapreduce.KijiDelete.java

/** {@inheritDoc} */
@Override/*from   w  ww  . j av a  2  s  . co  m*/
public void write(DataOutput out) throws IOException {
    // EntityId.
    final byte[] bytes = mEntityId.getHBaseRowKey();
    out.writeInt(bytes.length);
    out.write(bytes);

    // Family/Qualifier/Timestamp.
    writeOptionalValue(mFamily, out);
    writeOptionalValue(mQualifier, out);
    writeOptionalValue(mTimestamp, out);
    writeOptionalValue(mOperation, out);
}

From source file:com.chinamobile.bcbsp.util.JobStatus.java

/** serialize
 * write this object to out.//  www.  j av a2  s  .  co m
 *
 * @param out Writes to the output stream.
 */
@Override
public synchronized void write(DataOutput out) throws IOException {
    jobid.write(out);
    out.writeLong(setupProgress);
    out.writeLong(progress);
    out.writeLong(cleanupProgress);
    out.writeInt(runState);
    WritableUtils.writeEnum(out, this.state);
    out.writeLong(startTime);
    out.writeLong(finishTime);
    Text.writeString(out, user);
    //    Text.writeString(out, schedulingInfo);
    out.writeLong(superstepCount);
    out.writeBoolean(recovery);
}