Example usage for java.io DataOutputStream writeLong

Introduction

In this page you can find the example usage for java.io DataOutputStream writeLong.

Prototype

public final void writeLong(long v) throws IOException

Source Link

Document

Writes a long to the underlying output stream as eight bytes, high byte first.

Usage

From source file:com.codefollower.lealone.omid.tso.TSOHandler.java

private void handleHalfAbort(long startTimestamp) {
    abortCounter.incrementAndGet();//w w w.  j a  v  a  2  s  .  com

    synchronized (sharedState) {
        DataOutputStream toWAL = sharedState.toWAL;
        try {
            toWAL.writeByte(LoggerProtocol.ABORT);
            toWAL.writeLong(startTimestamp);
        } catch (IOException e) {
            LOG.error("failed to write abort wal", e);
        }
        sharedState.processHalfAbort(startTimestamp);
        synchronized (sharedMsgBufLock) {
            queueHalfAbort(startTimestamp);
        }
    }
}

From source file:com.codefollower.lealone.omid.tso.TSOHandler.java

/**
 * Handle the FullAbortReport message//from   w  w w .  ja  v a2s .  c o m
 */
private void handle(FullAbortRequest msg, ChannelHandlerContext ctx) {
    synchronized (sharedState) {
        DataOutputStream toWAL = sharedState.toWAL;
        try {
            toWAL.writeByte(LoggerProtocol.FULL_ABORT);
            toWAL.writeLong(msg.startTimestamp);
        } catch (IOException e) {
            LOG.error("failed to write fullabort wal", e);
        }
        sharedState.processFullAbort(msg.startTimestamp);
    }
    synchronized (sharedMsgBufLock) {
        queueFullAbort(msg.startTimestamp);
    }
}

From source file:org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSecretManager.java

/**
 * Private helper methods to save delegation keys and tokens in fsimage
 *//*w w w .j av a  2  s .c  o  m*/
private synchronized void saveCurrentTokens(DataOutputStream out) throws IOException {
    out.writeInt(currentTokens.size());
    Iterator<DelegationTokenIdentifier> iter = currentTokens.keySet().iterator();
    while (iter.hasNext()) {
        DelegationTokenIdentifier id = iter.next();
        id.write(out);
        DelegationTokenInformation info = currentTokens.get(id);
        out.writeLong(info.getRenewDate());
    }
}

From source file:org.apache.jackrabbit.core.journal.FileRecordLog.java

/**
 * Initialize this record log by writing a header containing the
 * previous revision./*from  w  w w.  java 2  s.  c om*/
 */
public void init(long previousRevision) throws IOException {
    if (isNew) {
        DataOutputStream out = new DataOutputStream(
                new BufferedOutputStream(new FileOutputStream(logFile), 128));

        try {
            writeHeader(out);
            out.writeLong(previousRevision);
        } finally {
            close(out);
        }

        this.previousRevision = previousRevision;
        this.lastRevision = previousRevision;
        isNew = false;
    }
}

From source file:de.hybris.platform.cuppytrail.impl.DefaultSecureTokenService.java

@Override
public String encryptData(final SecureToken data) {
    if (data == null || StringUtils.isBlank(data.getData())) {
        throw new IllegalArgumentException("missing token");
    }/*from   w  ww.  j av  a2  s .  co m*/
    try {
        final SecureRandom random = SecureRandom.getInstance(RANDOM_ALGORITHM);
        final int[] paddingSizes = computePaddingLengths(random);

        final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        final DataOutputStream dataOutputStream = new DataOutputStream(byteArrayOutputStream);
        dataOutputStream.write(generatePadding(paddingSizes[0], random));
        dataOutputStream.writeUTF(data.getData());
        dataOutputStream.writeUTF(createChecksum(data.getData()));
        dataOutputStream.writeLong(data.getTimeStamp());
        dataOutputStream.write(generatePadding(paddingSizes[1], random));

        dataOutputStream.flush();
        final byte[] unsignedDataBytes = byteArrayOutputStream.toByteArray();

        final byte[] md5SigBytes = generateSignature(unsignedDataBytes, 0, unsignedDataBytes.length,
                signatureKeyBytes);
        byteArrayOutputStream.write(md5SigBytes);
        byteArrayOutputStream.flush();

        final byte[] signedDataBytes = byteArrayOutputStream.toByteArray();

        return encrypt(signedDataBytes, encryptionKeyBytes, random);
    } catch (final IOException e) {
        LOG.error("Could not encrypt", e);
        throw new SystemException(e.toString(), e);
    } catch (final GeneralSecurityException e) {
        LOG.error("Could not encrypt", e);
        throw new SystemException(e.toString(), e);
    }
}

From source file:com.linkedin.pinot.core.segment.creator.impl.SegmentIndexCreationDriverImpl.java

/**
 * Writes segment creation metadata to disk.
 *///from   w  w w.  j a  v a  2s.c om
void persistCreationMeta(File outputDir, long crc) throws IOException {
    final File crcFile = new File(outputDir, V1Constants.SEGMENT_CREATION_META);
    final DataOutputStream out = new DataOutputStream(new FileOutputStream(crcFile));
    out.writeLong(crc);

    long creationTime = System.currentTimeMillis();

    // Use the creation time from the configuration if it exists and is not -1
    try {
        long configCreationTime = Long.parseLong(config.getCreationTime());
        if (0L < configCreationTime) {
            creationTime = configCreationTime;
        }
    } catch (Exception nfe) {
        // Ignore NPE and NFE, use the current time.
    }

    out.writeLong(creationTime);
    out.close();
}

From source file:ubic.basecode.io.ByteArrayConverter.java

/**
 * @param larray//from w  w w . j av  a 2s  . c  o  m
 * @return byte[]
 */
public byte[] longArrayToBytes(long[] larray) {
    if (larray == null)
        return null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(bos);
    try {
        for (long element : larray) {
            dos.writeLong(element);
        }
        dos.close();
        bos.close();
    } catch (IOException e) {
        // do nothing
    }
    return bos.toByteArray();
}

From source file:org.hydracache.server.data.versioning.VectorClockVersionFactory.java

@Override
public void writeObject(final Version version, final DataOutputStream dataOut) throws IOException {

    Validate.isTrue(version instanceof VectorClock, "version must be non null and an instance of VectorClock");

    Validate.notNull(dataOut, "dataOut can not be null");

    final VectorClock vectorClock = (VectorClock) version;
    final List<VectorClockEntry> vectorClockEntries = vectorClock.getEntries();

    dataOut.writeInt(vectorClockEntries.size());

    for (final VectorClockEntry vce : vectorClockEntries) {
        getIdentityMarshaller().writeObject(vce.getNodeId(), dataOut);
        dataOut.writeLong(vce.getValue());
        dataOut.writeLong(vce.getTimestamp());
    }//from  w w  w.  ja  v  a 2  s  .  co m
}

From source file:org.slc.sli.dal.encrypt.AesCipher.java

@Override
public String encrypt(Object data) {
    if (data instanceof String) {
        return "ESTRING:" + encryptFromBytes(StringUtils.getBytesUtf8((String) data));
    } else {// w w w.  ja v a 2  s . com
        ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(byteOutputStream);
        String type;
        try {
            if (data instanceof Boolean) {
                dos.writeBoolean((Boolean) data);
                type = "EBOOL:";
            } else if (data instanceof Integer) {
                dos.writeInt((Integer) data);
                type = "EINT:";
            } else if (data instanceof Long) {
                dos.writeLong((Long) data);
                type = "ELONG:";
            } else if (data instanceof Double) {
                dos.writeDouble((Double) data);
                type = "EDOUBLE:";
            } else {
                throw new RuntimeException("Unsupported type: " + data.getClass().getCanonicalName());
            }
            dos.flush();
            dos.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        byte[] bytes = byteOutputStream.toByteArray();
        return type + encryptFromBytes(bytes);
    }
}

From source file:com.yahoo.omid.tso.TSOHandler.java

public void handle(AbortRequest msg, ChannelHandlerContext ctx) {
    synchronized (sharedState) {
        DataOutputStream toWAL = sharedState.toWAL;
        try {//from ww w  . ja v  a2  s .  c  om
            toWAL.writeByte(LoggerProtocol.ABORT);
            toWAL.writeLong(msg.startTimestamp);
        } catch (IOException e) {
            e.printStackTrace();
        }
        abortCount++;
        sharedState.processAbort(msg.startTimestamp);
        synchronized (sharedMsgBufLock) {
            queueHalfAbort(msg.startTimestamp);
        }
    }
}