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.server.namenode.FSImageSerialization.java

/**
 * Serialize a {@link INodeSymlink} node
 * @param node The node to write//  ww  w  .  j  a v a2  s  .co m
 * @param out The {@link DataOutput} where the fields are written
 */
private static void writeINodeSymlink(INodeSymlink node, DataOutput out) throws IOException {
    writeLocalName(node, out);
    out.writeLong(node.getId());
    out.writeShort(0); // replication
    out.writeLong(0); // modification time
    out.writeLong(0); // access time
    out.writeLong(0); // preferred block size
    out.writeInt(-2); // # of blocks

    Text.writeString(out, node.getSymlinkString());
    writePermissionStatus(node, out);
    out.writeLong(0); // access count IDecider
    out.writeInt(0); // is cached flag IDecider
}

From source file:org.apache.hadoop.hdfs.server.namenode.FSImageSerialization.java

/**
 * Serialize a {@link INodeDirectory}/*ww w.jav  a  2 s.com*/
 * @param node The node to write
 * @param out The {@link DataOutput} where the fields are written 
 */
public static void writeINodeDirectory(INodeDirectory node, DataOutput out) throws IOException {
    writeLocalName(node, out);
    out.writeLong(node.getId());
    out.writeShort(0); // replication
    out.writeLong(node.getModificationTime());
    out.writeLong(0); // access time
    out.writeLong(0); // preferred block size
    out.writeInt(-1); // # of blocks

    out.writeLong(node.getNsQuota());
    out.writeLong(node.getDsQuota());
    if (node instanceof INodeDirectorySnapshottable) {
        out.writeBoolean(true);
    } else {
        out.writeBoolean(false);
        out.writeBoolean(node instanceof INodeDirectoryWithSnapshot);
    }

    writePermissionStatus(node, out);
    /*out.writeLong(0);   access count IDecider
    out.writeInt(0);   is cached flag IDecider*/
}

From source file:com.fiorano.openesb.application.DmiObject.java

/**
 * Utility method to write a DmiObject to output stream
 * @param dmi dmi object//from   w  w  w .  j  av a2  s . c o  m
 * @param out output stream
 * @param versionNo version
 * @throws IOException IOException
 */
public static void toStream(DmiObject dmi, DataOutput out, int versionNo) throws IOException {
    if (dmi != null) {
        out.writeInt(1);
        dmi.toStream(out, versionNo);
    } else
        out.writeInt(0);
}

From source file:com.fiorano.openesb.application.DmiObject.java

/**
 * Utility method to write a list to output stream
 * @param list list// w w w  .  ja va 2s .co  m
 * @param out output stream
 * @param versionNo version
 * @throws IOException
 */
public static void toStream(List list, DataOutput out, int versionNo) throws IOException {
    try {
        if (list != null) {
            out.writeInt(list.size());
            for (Object aList : list) {
                DmiObject dmi = (DmiObject) aList;
                dmi.toStream(out, versionNo);
            }
        } else
            out.writeInt(0);
    } finally {
        // Not clearing this will lead to invalid objects in memory
        MapThreadLocale.getInstance().getMap().clear();
    }
}

From source file:org.apache.hadoop.hbase.KeyValueUtil.java

/**
 * Write out a KeyValue in the manner in which we used to when KeyValue was a
 * Writable.//from w ww .  jav  a 2 s . c  o m
 *
 * @param kv
 * @param out
 * @return Length written on stream
 * @throws IOException
 * @see #create(DataInput) for the inverse function
 */
public static long write(final KeyValue kv, final DataOutput out) throws IOException {
    // This is how the old Writables write used to serialize KVs. Need to figure
    // way to make it
    // work for all implementations.
    int length = kv.getLength();
    out.writeInt(length);
    out.write(kv.getBuffer(), kv.getOffset(), length);
    return (long) length + Bytes.SIZEOF_INT;
}

From source file:org.apache.hadoop.hdfs.server.namenode.FSImageSerialization.java

/** Serialize a {@link INodeReference} node */
private static void writeINodeReference(INodeReference ref, DataOutput out, boolean writeUnderConstruction,
        ReferenceMap referenceMap) throws IOException {
    writeLocalName(ref, out);//from  ww  w .  ja v  a2 s. c o  m
    out.writeLong(ref.getId());
    out.writeShort(0); // replication
    out.writeLong(0); // modification time
    out.writeLong(0); // access time
    out.writeLong(0); // preferred block size
    out.writeInt(-3); // # of blocks

    final boolean isWithName = ref instanceof INodeReference.WithName;
    out.writeBoolean(isWithName);

    if (!isWithName) {
        Preconditions.checkState(ref instanceof INodeReference.DstReference);
        // dst snapshot id
        out.writeInt(((INodeReference.DstReference) ref).getDstSnapshotId());
    } else {
        out.writeInt(((INodeReference.WithName) ref).getLastSnapshotId());
    }

    final INodeReference.WithCount withCount = (INodeReference.WithCount) ref.getReferredINode();
    referenceMap.writeINodeReferenceWithCount(withCount, out, writeUnderConstruction);
    out.writeLong(0); // access count IDecider
    out.writeInt(0); // is cached flag IDecider
}

From source file:org.apache.marmotta.kiwi.io.KiWiIO.java

/**
 * Efficiently serialize a KiWiDateLiteral to a DataOutput destination.
 *
 * @param out the destination/*from w w w .ja  v  a 2  s.  c  o m*/
 * @param literal the KiWiDateLiteral to serialize
 * @throws IOException
 */
public static void writeDateLiteral(DataOutput out, KiWiDateLiteral literal) throws IOException {
    if (literal == null) {
        out.writeLong(-1L);
    } else {
        out.writeLong(literal.getId());
        out.writeLong(literal.getDateContent().getMillis());
        out.writeInt(literal.getDateContent().getZone().getOffset(literal.getDateContent()));
        writeURI(out, literal.getType());
        out.writeLong(literal.getCreated().getTime());
    }
}

From source file:edu.iu.lda.TopicCountList.java

@Override
public void write(DataOutput out) throws IOException {
    out.writeInt(topicCount.size());
    for (int i = 0; i < topicCount.size(); i++) {
        out.writeLong(topicCount.getLong(i));
    }//  w  w  w.  ja  v  a  2  s.c  o m
}

From source file:org.apache.sqoop.mapreduce.netezza.NetezzaExternalTableInputSplit.java

@Override
public void write(DataOutput output) throws IOException {
    output.writeInt(dataSliceId);
}

From source file:edu.iu.lda.TopicCount.java

@Override
public void write(DataOutput out) throws IOException {
    out.writeInt(topicCount.size());
    ObjectIterator<Int2IntMap.Entry> iterator = topicCount.int2IntEntrySet().fastIterator();
    while (iterator.hasNext()) {
        Int2IntMap.Entry entry = iterator.next();
        out.writeInt(entry.getIntKey());
        out.writeInt(entry.getIntValue());
    }//from  www  .  j a  v a2 s  .c o m
}