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:com.icloud.framework.core.util.FBUtilities.java

public static void writeByteArray(ByteBuffer bytes, DataOutput out) throws IOException {
    out.writeInt(bytes.remaining());
    out.write(bytes.array(), bytes.position() + bytes.arrayOffset(), bytes.remaining());
}

From source file:com.chinamobile.bcbsp.ml.VectorWritable.java

public static void writeVector(DoubleVector vector, DataOutput out) throws IOException {
    if (vector == null) {
        LOG.info("lin test : VectorWritable write Vector is null");
    } else {// www.j  ava2s  . com
        LOG.info("lin test : VectorWritable write Vector is not null");
    }
    out.writeInt(vector.getLength());
    for (int i = 0; i < vector.getDimension(); i++) {
        out.writeDouble(vector.get(i));
    }

    if (vector.isNamed() && vector.getName() != null) {
        out.writeBoolean(true);
        out.writeUTF(vector.getName());
    } else {
        out.writeBoolean(false);
    }
}

From source file:com.wsc.myexample.decisionForest.MyDataset.java

public static void writeStringArray(DataOutput out, String[] s) throws IOException {
    out.writeInt(s.length);
    for (int i = 0; i < s.length; i++) {
        writeString(out, s[i]);// w w  w . j  av a 2  s . c o m
    }
}

From source file:io.mycat.util.ByteBufferUtil.java

public static void writeWithLength(byte[] bytes, DataOutput out) throws IOException {
    out.writeInt(bytes.length);
    out.write(bytes);//from   w w  w .j ava 2  s .  co m
}

From source file:com.aliyun.odps.io.TupleReaderWriter.java

/**
 * Tuple??/* w  ww  .  ja v  a  2  s .c  om*/
 *
 * @param out
 *     Tuple??
 * @param t
 *     Tuple
 * @throws IOException
 *     ?Tuple?field
 */
public static void writeTuple(DataOutput out, Tuple t) throws IOException {
    out.writeByte(TUPLE);
    int sz = t.size();
    out.writeInt(sz);
    for (int i = 0; i < sz; i++) {
        writeDatum(out, t.get(i));
    }
}

From source file:com.bigdata.dastor.utils.FBUtilities.java

public static void writeByteArray(byte[] bytes, DataOutput out) throws IOException {
    out.writeInt(bytes.length);
    out.write(bytes);//from   w  w w  . j  a va  2  s.  c  o m
}

From source file:org.cloudata.core.common.io.CWritableUtils.java

public static void writeStringArray(DataOutput out, String[] s) throws IOException {
    if (s == null) {
        out.writeInt(0);
        return;/*from w ww . j a  v  a 2  s  .  co m*/
    }
    out.writeInt(s.length);
    for (int i = 0; i < s.length; i++) {
        writeString(out, s[i]);
    }
}

From source file:org.cloudata.core.common.io.CWritableUtils.java

public static void writeCompressedStringArray(DataOutput out, String[] s) throws IOException {
    if (s == null) {
        out.writeInt(-1);
        return;//from   w w  w  .j  a v a 2  s. c om
    }
    out.writeInt(s.length);
    for (int i = 0; i < s.length; i++) {
        writeCompressedString(out, s[i]);
    }
}

From source file:com.wsc.myexample.decisionForest.MyDataset.java

public static void writeString(DataOutput out, String s) throws IOException {
    if (s != null) {
        byte[] buffer = s.getBytes("UTF-8");
        int len = buffer.length;
        out.writeInt(len);
        out.write(buffer, 0, len);/*from w  w w .ja  va 2 s .c  o m*/
    } else {
        out.writeInt(-1);
    }
}

From source file:org.apache.hadoop.hbase.security.access.TestTablePermissions.java

/**
 * Writes a set of permissions as {@link org.apache.hadoop.io.Writable} instances
 * to the given output stream./*w w  w.j a v a  2  s  . c  o  m*/
 * @param out
 * @param perms
 * @param conf
 * @throws IOException
*/
public static void writePermissions(DataOutput out, ListMultimap<String, ? extends Permission> perms,
        Configuration conf) throws IOException {
    Set<String> keys = perms.keySet();
    out.writeInt(keys.size());
    for (String key : keys) {
        Text.writeString(out, key);
        HbaseObjectWritableFor96Migration.writeObject(out, perms.get(key), List.class, conf);
    }
}