Example usage for java.io DataOutput write

Introduction

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

Prototype

void write(byte b[]) throws IOException;

Source Link

Document

Writes to the output stream all the bytes in array b.

Usage

From source file:Main.java

public static void writeByteBuffer(byte[] buf, int offset, int length, DataOutput out) throws Exception {
    if (buf != null) {
        out.write(1);
        out.writeInt(length);/*from w w w . j  a  v  a2s  .  c om*/
        out.write(buf, offset, length);
    } else {
        out.write(0);
    }
}

From source file:backup.store.BackupUtil.java

public static void writeShortString(String s, DataOutput out) throws IOException {
    int length = s.length();
    byte[] bs = s.getBytes();
    out.writeShort(length);// w  w w . j  ava 2s .  c o m
    out.write(bs);
}

From source file:com.bah.culvert.util.Bytes.java

/**
 * Write the bytes to the output stream/*from  www . jav a  2  s  . co  m*/
 * @param out to write to
 * @param bytes to write
 * @throws IOException on failure to write
 */
public static void writeByteArray(DataOutput out, byte[] bytes) throws IOException {
    out.writeInt(bytes.length);
    out.write(bytes);
}

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

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

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

public static void writeByteArray(byte[] bytes, DataOutput out) throws IOException {
    out.writeInt(bytes.length);/*from www.j a  v a2  s . co m*/
    out.write(bytes);
}

From source file:com.linkedin.cubert.io.rubix.RubixFile.java

private static void extract(List<RubixFile<Tuple, Object>> rfiles, long blockId, int numBlocks, String output)
        throws IOException, ClassNotFoundException, InstantiationException, IllegalAccessException {
    Configuration conf = new JobConf();
    File outFile = new File(output);
    if (outFile.exists()) {
        outFile.delete();//w  w w .  jav a  2  s .  c o m
    }
    outFile.createNewFile();
    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(outFile));
    ByteArrayOutputStream keySectionStream = new ByteArrayOutputStream();
    DataOutput keySectionOut = new DataOutputStream(keySectionStream);
    SerializationFactory serializationFactory = new SerializationFactory(conf);
    RubixFile<Tuple, Object> lastrFile = null;
    JsonNode json;
    long totalLength = 0;

    final int BUF_SIZE = 32 * 1024;
    long blockIds[] = new long[numBlocks];
    int foundBlocks = 0;

    for (int i = 0; i < numBlocks; i++)
        blockIds[i] = blockId + i;

    for (int i = 0; i < numBlocks; i++) {
        boolean found = false;
        for (RubixFile<Tuple, Object> rfile : rfiles) {
            print.f("Checking %s", rfile.path.toString());
            List<KeyData<Tuple>> keyDataList = rfile.getKeyData();
            for (KeyData<Tuple> keyData : keyDataList) {
                if (keyData.getBlockId() == blockIds[i]) {
                    long offset = keyData.getOffset();
                    long length = keyData.getLength();
                    Tuple key = keyData.getKey();
                    print.f("Extracting block %d (off=%d len=%d) from %s", keyData.getBlockId(), offset, length,
                            rfile.path.toString());

                    // copy the data
                    if (length > 0) {
                        FileSystem fs = FileSystem.get(conf);
                        FSDataInputStream in = fs.open(rfile.path);
                        in.seek(offset);

                        byte[] data = new byte[BUF_SIZE];
                        long toRead = length;
                        while (toRead > 0) {
                            int thisRead = toRead > BUF_SIZE ? BUF_SIZE : (int) toRead;
                            in.readFully(data, 0, thisRead);
                            bos.write(data, 0, thisRead);
                            toRead -= thisRead;
                            System.out.print(".");
                        }
                        System.out.println();
                    }
                    // copy the key section
                    Serializer<Tuple> keySerializer = serializationFactory.getSerializer(rfile.getKeyClass());
                    keySerializer.open(keySectionStream);

                    keySerializer.serialize(key);
                    keySectionOut.writeLong(totalLength); // position
                    keySectionOut.writeLong(keyData.getBlockId());
                    keySectionOut.writeLong(keyData.getNumRecords());
                    foundBlocks++;
                    totalLength += length;
                    lastrFile = rfile;

                    found = true;
                    break;

                }
            }
            if (found) {
                break;
            }
        }
        if (!found)
            System.err.println("Cannot locate block with id " + blockIds[i]);
    }
    byte[] trailerBytes = keySectionStream.toByteArray();

    json = JsonUtils.cloneNode(lastrFile.metadataJson);
    ((ObjectNode) json).put("numberOfBlocks", foundBlocks);

    DataOutput out = new DataOutputStream(bos);
    out.writeUTF(json.toString());
    out.writeInt(trailerBytes.length);
    out.write(trailerBytes);
    out.writeLong(totalLength); // trailer start offset
    bos.close();
}

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

public static void serialize(TSerializer serializer, TBase struct, DataOutput out) throws IOException {
    assert serializer != null;
    assert struct != null;
    assert out != null;
    byte[] bytes;
    try {//  ww  w . j  a v a2  s.  c  o  m
        bytes = serializer.serialize(struct);
    } catch (TException e) {
        throw new RuntimeException(e);
    }
    out.writeInt(bytes.length);
    out.write(bytes);
}

From source file:com.iflytek.spider.parse.ParseText.java

public final void write(DataOutput out) throws IOException {
    out.write(VERSION);
    Text.writeString(out, text);//w w w.j  av a2 s . c o m
}

From source file:com.smartitengineering.cms.api.impl.workspace.WorkspaceIdImpl.java

@Override
public void writeExternal(DataOutput out) throws IOException {
    out.write(org.apache.commons.codec.binary.StringUtils.getBytesUtf8(toString()));
}

From source file:com.smartitengineering.jetty.session.replication.SessionDataId.java

@Override
public void writeExternal(DataOutput output) throws IOException {
    output.write(StringUtils.getBytesUtf8(toString()));
}