Example usage for io.netty.buffer ByteBuf readUnsignedInt

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readUnsignedInt.

Prototype

public abstract long readUnsignedInt();

Source Link

Document

Gets an unsigned 32-bit integer at the current readerIndex and increases the readerIndex by 4 in this buffer.

Usage

From source file:com.tesora.dve.mysqlapi.repl.messages.MyComBinLogDumpRequest.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    binlogPosition = cb.readUnsignedInt();
    cb.skipBytes(2);//from ww  w.  j  a  v  a 2 s  .  c o  m
    slaveServerID = cb.readInt();
    if (cb.readableBytes() > 0) {
        binlogFileName = cb.readSlice(cb.readableBytes()).toString(CharsetUtil.UTF_8);
    }
}

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From source file:com.tesora.dve.mysqlapi.repl.messages.MyFormatDescriptionLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    binaryLogVersion = cb.readShort();// ww  w  .j  a  v a  2 s . c o m
    serverVersion = MysqlAPIUtils.readBytesAsString(cb, ST_SERVER_VER_LEN, CharsetUtil.UTF_8);
    createTime = cb.readUnsignedInt();
    eventTypeLength = cb.readUnsignedByte();
    int numberOfEntries = cb.readableBytes() - 1;//string is null terminated.

    switch (MyBinLogVerType.fromByte((byte) binaryLogVersion)) {

    case MySQL_5_0:
        for (int i = 1; i <= numberOfEntries; i++) {
            eventTypeValues.put(MyLogEventType.fromByte((byte) i), cb.readByte());
        }
        cb.skipBytes(1);//throw out EOF
        break;

    default:
        // TODO throw????
        logger.error("Cannot process binary log messages that are not for MySQL 5.0");
    }
}

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From source file:com.tesora.dve.mysqlapi.repl.messages.MyQueryLogEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) throws PEException {

    // read event header
    slaveProxyId = cb.readUnsignedInt();
    execTime = cb.readUnsignedInt();/*from  www . j a v  a 2 s  . co  m*/
    dbNameLen = cb.readByte();
    errorCode = cb.readUnsignedShort();
    statusVarsLen = cb.readUnsignedShort();

    statusVars.parseStatusVariables(cb, statusVarsLen);

    dbName = MysqlAPIUtils.readBytesAsString(cb, dbNameLen, CharsetUtil.UTF_8);
    cb.skipBytes(1); //for trailing 0
    query = Unpooled.buffer(cb.readableBytes());
    query.writeBytes(cb);
    origQuery = query.toString(CharsetUtil.UTF_8);
}

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From source file:com.tesora.dve.mysqlapi.repl.messages.MyReplEvent.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) throws PEException {
    //assumes the provided buffer is already scoped to payload boundary.

    rawPayload = cb.slice().copy();//from   www.java  2 s. c  o  m

    // 19 bytes for the common header
    commonHdr = new MyReplEventCommonHeader();
    commonHdr.setTimestamp(cb.readUnsignedInt());
    commonHdr.setType(cb.readByte());
    commonHdr.setServerId(cb.readUnsignedInt());
    commonHdr.setTotalSize(cb.readUnsignedInt());
    commonHdr.setMasterLogPosition(cb.readUnsignedInt());
    commonHdr.setFlags(cb.readShort());

    // unmarshall message based on common header type
    if (logger.isDebugEnabled())
        logger.debug("Unmarshalling event of type: " + MyLogEventType.fromByte(commonHdr.getType()).name());

    levp = MyLogEventPacket.MySqlLogEventFactory.newInstance(MyLogEventType.fromByte(commonHdr.getType()),
            commonHdr);

    levp.unmarshallMessage(cb);
}

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From source file:com.tesora.dve.mysqlapi.repl.messages.MyUserVarLogEvent.java

License:Open Source License

long readValue(ByteBuf decimalPortionBuf, int valueLen) throws PEException {
    if (valueLen < 1 || valueLen > 4)
        throw new PEException("Cannot decode decimal buffer.  Invalid read length of " + valueLen);

    long value = 0;
    if (valueLen == 4) {
        value = decimalPortionBuf.readUnsignedInt();
    } else if (valueLen == 3) {
        value = decimalPortionBuf.readUnsignedMedium();
    } else if (valueLen == 2) {
        value = decimalPortionBuf.readUnsignedShort();
    } else if (valueLen == 1) {
        value = decimalPortionBuf.readUnsignedByte();
    }/* ww w .  j  av  a2 s.  c  o m*/
    return value;
}

---

From source file:com.uber.tchannel.codecs.TFrameCodec.java

License:Open Source License

public static TFrame decode(ByteBuf buffer) {
    // size:2/* w  w w.ja  va2s  .  c  om*/
    int size = buffer.readUnsignedShort() - TFrame.FRAME_HEADER_LENGTH;

    // type:1
    byte type = buffer.readByte();

    // reserved:1
    buffer.skipBytes(1);

    // id:4
    long id = buffer.readUnsignedInt();

    // reserved:8
    buffer.skipBytes(8);

    // payload:16+
    ByteBuf payload = buffer.readSlice(size);
    //        payload.retain();

    return new TFrame(size, type, id, payload);
}

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From source file:com.vethrfolnir.encdec.ReadDataFiles.java

License:Open Source License

public static long[] readFile(URL url) {

    ByteBuf buff = Unpooled.buffer().order(ByteOrder.LITTLE_ENDIAN);

    try (DataInputStream is = new DataInputStream(url.openStream())) {
        buff.writeBytes(is, is.available());
    } catch (Exception e) {
        throw new RuntimeException(e);
    }/*from   www.  j av  a2 s  . c o  m*/

    int bits2 = buff.readUnsignedShort();

    System.out.println("First two bits: " + bits2 + " hex: 0x" + PrintData.fillHex(bits2, 2));

    long[] out_dat = new long[12];

    buff.readerIndex(6);
    int pointer = 0;
    for (int i = 0; i < 3; i++) {
        long[] buf = new long[4];

        for (int j = 0; j < 4; j++) {
            buf[j] = buff.readUnsignedInt();
        }

        out_dat[pointer++] = buf[0] ^ (xor_tab_datfile[0]);
        out_dat[pointer++] = buf[1] ^ (xor_tab_datfile[1] & 0xFFFFFFFFL);
        out_dat[pointer++] = buf[2] ^ (xor_tab_datfile[2] & 0xFFFFFFFFL);
        out_dat[pointer++] = buf[3] ^ (xor_tab_datfile[3]);
    }

    for (int i = 0; i < out_dat.length; i++) {
        System.out.print(" " + (out_dat[i]));
    }

    System.out.println();
    return null;
}

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From source file:com.vethrfolnir.game.network.mu.crypt.MuKeyFactory.java

License:Open Source License

private static void readFile(String path, long[] out_dat) {

    AssetManager assetManager = Corax.fetch(AssetManager.class);

    ByteBuf buff = Unpooled.buffer().order(ByteOrder.LITTLE_ENDIAN);

    try (InputStream is = assetManager.loadAsset(FileKey.class, path)) {
        buff.writeBytes(is, is.available());
    } catch (IOException e) {
        e.printStackTrace();/*from  w  w w .j  a va  2 s  .co m*/
    }

    buff.readerIndex(6);
    int pointer = 0;
    for (int i = 0; i < 3; i++) {
        long[] buf = new long[4];

        for (int j = 0; j < 4; j++) {
            buf[j] = buff.readUnsignedInt();
        }

        out_dat[pointer++] = buf[0] ^ (xor_tab_datfile[0]);
        out_dat[pointer++] = buf[1] ^ (xor_tab_datfile[1] & 0xFFFFFFFFL);
        out_dat[pointer++] = buf[2] ^ (xor_tab_datfile[2] & 0xFFFFFFFFL);
        out_dat[pointer++] = buf[3] ^ (xor_tab_datfile[3]);
    }
}

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From source file:com.yahoo.pulsar.client.impl.ProducerImpl.java

License:Apache License

/**
 * Computes checksum again and verifies it against existing checksum. If checksum doesn't match it means that
 * message is corrupt.// w w  w . ja  v  a  2  s . c om
 * 
 * @param op
 * @return returns true only if message is not modified and computed-checksum is same as previous checksum else
 *         return false that means that message is corrupted. Returns true if checksum is not present.
 */
protected boolean verifyLocalBufferIsNotCorrupted(OpSendMsg op) {
    DoubleByteBuf msg = getDoubleByteBuf(op.cmd);

    if (msg != null) {
        ByteBuf headerFrame = msg.getFirst();
        msg.markReaderIndex();
        headerFrame.markReaderIndex();
        try {
            // skip bytes up to checksum index
            headerFrame.skipBytes(4); // skip [total-size]
            int cmdSize = (int) headerFrame.readUnsignedInt();
            headerFrame.skipBytes(cmdSize);
            // verify if checksum present
            if (hasChecksum(headerFrame)) {
                int checksum = readChecksum(headerFrame).intValue();
                // msg.readerIndex is already at header-payload index, Recompute checksum for headers-payload
                int metadataChecksum = computeChecksum(headerFrame);
                long computedChecksum = resumeChecksum(metadataChecksum, msg.getSecond());
                return checksum == computedChecksum;
            } else {
                log.warn("[{}] [{}] checksum is not present into message with id {}", topic, producerName,
                        op.sequenceId);
            }
        } finally {
            headerFrame.resetReaderIndex();
            msg.resetReaderIndex();
        }
        return true;
    } else {
        log.warn("[{}] Failed while casting {} into DoubleByteBuf", producerName, op.cmd.getClass().getName());
        return false;
    }
}

---

From source file:com.yahoo.pulsar.client.impl.ProducerImpl.java

License:Apache License

/**
 * Strips checksum from {@link OpSendMsg} command if present else ignore it.   
 * /*ww  w  .j  a  v  a  2  s.  c  om*/
 * @param op
 */
private void stripChecksum(OpSendMsg op) {
    op.cmd.markReaderIndex();
    int totalMsgBufSize = op.cmd.readableBytes();
    DoubleByteBuf msg = getDoubleByteBuf(op.cmd);
    if (msg != null) {
        ByteBuf headerFrame = msg.getFirst();
        msg.markReaderIndex();
        headerFrame.markReaderIndex();
        try {
            headerFrame.skipBytes(4); // skip [total-size]
            int cmdSize = (int) headerFrame.readUnsignedInt();

            // verify if checksum present
            headerFrame.skipBytes(cmdSize);

            if (!hasChecksum(headerFrame)) {
                headerFrame.resetReaderIndex();
                return;
            }

            int headerSize = 4 + 4 + cmdSize; // [total-size] [cmd-length] [cmd-size]
            int checksumSize = 4 + 2; // [magic-number] [checksum-size]
            int checksumMark = (headerSize + checksumSize); // [header-size] [checksum-size]
            int metaPayloadSize = (totalMsgBufSize - checksumMark); // metadataPayload = totalSize - checksumMark
            int newTotalFrameSizeLength = 4 + cmdSize + metaPayloadSize; // new total-size without checksum
            headerFrame.resetReaderIndex();
            int headerFrameSize = headerFrame.readableBytes();

            headerFrame.setInt(0, newTotalFrameSizeLength); // rewrite new [total-size]
            ByteBuf metadata = headerFrame.slice(checksumMark, headerFrameSize - checksumMark); // sliced only
                                                                                                // metadata
            headerFrame.writerIndex(headerSize); // set headerFrame write-index to overwrite metadata over checksum
            metadata.readBytes(headerFrame, metadata.readableBytes());
            headerFrame.capacity(headerFrameSize - checksumSize); // reduce capacity by removed checksum bytes
            headerFrame.resetReaderIndex();

        } finally {
            op.cmd.resetReaderIndex();
        }
    } else {
        log.warn("[{}] Failed while casting {} into DoubleByteBuf", producerName, op.cmd.getClass().getName());
    }
}

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