Example usage for io.netty.buffer ByteBuf skipBytes

List of usage examples for io.netty.buffer ByteBuf skipBytes

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.buffer.*
  5. ByteBuf
  6. skipBytes

Introduction

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

Prototype

public abstract ByteBuf skipBytes(int length);

Source Link

Document

Increases the current readerIndex by the specified length in this buffer.

Usage

From source file:org.apache.activemq.artemis.utils.UTF8Util.java

License:Apache License

public static String readUTF(final ActiveMQBuffer input) {
    StringUtilBuffer buffer = UTF8Util.getThreadLocalBuffer();

    final int size = input.readUnsignedShort();

    if (UTF8Util.isTrace) {
        // This message is too verbose for debug, that's why we are using trace here
        ActiveMQUtilLogger.LOGGER.trace("Reading string with utfSize=" + size);
    }/*from   ww  w.  j a va2s  .c o  m*/
    if (PlatformDependent.hasUnsafe() && input.byteBuf() != null && input.byteBuf().hasMemoryAddress()) {
        final ByteBuf byteBuf = input.byteBuf();
        final long addressBytes = byteBuf.memoryAddress();
        final int index = byteBuf.readerIndex();
        byteBuf.skipBytes(size);
        final char[] chars = buffer.borrowCharBuffer(size);
        return unsafeOffHeapReadUTF(addressBytes, index, chars, size);
    }
    final byte[] bytes;
    final int index;
    if (input.byteBuf() != null && input.byteBuf().hasArray()) {
        final ByteBuf byteBuf = input.byteBuf();
        bytes = byteBuf.array();
        index = byteBuf.arrayOffset() + byteBuf.readerIndex();
        byteBuf.skipBytes(size);
    } else {
        bytes = buffer.borrowByteBuffer(size);
        index = 0;
        input.readBytes(bytes, 0, size);
    }
    final char[] chars = buffer.borrowCharBuffer(size);
    if (PlatformDependent.hasUnsafe()) {
        return unsafeOnHeapReadUTF(bytes, index, chars, size);
    } else {
        return readUTF(bytes, index, chars, size);
    }
}

From source file:org.apache.bookkeeper.bookie.BookieShell.java

License:Apache License

/**
 * Format the message into a readable format.
 *
 * @param pos//from w ww  .j  av  a  2  s .  co  m
 *          File offset of the message stored in entry log file
 * @param recBuff
 *          Entry Data
 * @param printMsg
 *          Whether printing the message body
 */
private void formatEntry(long pos, ByteBuf recBuff, boolean printMsg) {
    int entrySize = recBuff.readableBytes();
    long ledgerId = recBuff.readLong();
    long entryId = recBuff.readLong();

    System.out.println("--------- Lid=" + ledgerIdFormatter.formatLedgerId(ledgerId) + ", Eid=" + entryId
            + ", ByteOffset=" + pos + ", EntrySize=" + entrySize + " ---------");
    if (entryId == Bookie.METAENTRY_ID_LEDGER_KEY) {
        int masterKeyLen = recBuff.readInt();
        byte[] masterKey = new byte[masterKeyLen];
        recBuff.readBytes(masterKey);
        System.out.println("Type:           META");
        System.out.println("MasterKey:      " + bytes2Hex(masterKey));
        System.out.println();
        return;
    }
    if (entryId == Bookie.METAENTRY_ID_FENCE_KEY) {
        System.out.println("Type:           META");
        System.out.println("Fenced");
        System.out.println();
        return;
    }
    // process a data entry
    long lastAddConfirmed = recBuff.readLong();
    System.out.println("Type:           DATA");
    System.out.println("LastConfirmed:  " + lastAddConfirmed);
    if (!printMsg) {
        System.out.println();
        return;
    }
    // skip digest checking
    recBuff.skipBytes(8);
    System.out.println("Data:");
    System.out.println();
    try {
        byte[] ret = new byte[recBuff.readableBytes()];
        recBuff.readBytes(ret);
        entryFormatter.formatEntry(ret);
    } catch (Exception e) {
        System.out.println("N/A. Corrupted.");
    }
    System.out.println();
}

From source file:org.apache.bookkeeper.bookie.InterleavedLedgerStorage.java

License:Apache License

@Override
public long getLastAddConfirmed(long ledgerId) throws IOException {
    Long lac = ledgerCache.getLastAddConfirmed(ledgerId);
    if (lac == null) {
        ByteBuf bb = getEntry(ledgerId, BookieProtocol.LAST_ADD_CONFIRMED);
        if (null == bb) {
            return BookieProtocol.INVALID_ENTRY_ID;
        } else {/*from  www  .  jav  a2  s. c  o m*/
            try {
                bb.skipBytes(2 * Long.BYTES); // skip ledger & entry id
                lac = bb.readLong();
                lac = ledgerCache.updateLastAddConfirmed(ledgerId, lac);
            } finally {
                bb.release();
            }
        }
    }
    return lac;
}

From source file:org.apache.bookkeeper.bookie.storage.ldb.SingleDirectoryDbLedgerStorage.java

License:Apache License

@Override
public long getLastAddConfirmed(long ledgerId) throws IOException {
    TransientLedgerInfo ledgerInfo = transientLedgerInfoCache.get(ledgerId);
    long lac = null != ledgerInfo ? ledgerInfo.getLastAddConfirmed() : TransientLedgerInfo.NOT_ASSIGNED_LAC;
    if (lac == TransientLedgerInfo.NOT_ASSIGNED_LAC) {
        ByteBuf bb = getEntry(ledgerId, BookieProtocol.LAST_ADD_CONFIRMED);
        try {//from  w  w  w  .  j a v a  2 s.  c  o  m
            bb.skipBytes(2 * Long.BYTES); // skip ledger id and entry id
            lac = bb.readLong();
            lac = getOrAddLedgerInfo(ledgerId).setLastAddConfirmed(lac);
        } finally {
            bb.release();
        }
    }
    return lac;
}

From source file:org.apache.bookkeeper.statelib.impl.kv.KVUtils.java

License:Apache License

static <V> V deserialize(Coder<V> valCoder, ByteBuf valBuf) {
    valBuf.skipBytes(Long.BYTES);
    return valCoder.decode(valBuf);
}

From source file:org.apache.bookkeeper.statelib.impl.mvcc.MVCCRecordCoder.java

License:Apache License

@Override
public MVCCRecord decode(ByteBuf data) {
    ByteBuf copy = data.slice();

    int metaLen = copy.readInt();
    ByteBuffer metaBuf = copy.slice(copy.readerIndex(), metaLen).nioBuffer();
    KeyMeta meta;/*from   w w w  . j a v  a2 s .  c o  m*/
    try {
        meta = KeyMeta.parseFrom(metaBuf);
    } catch (InvalidProtocolBufferException e) {
        throw new StateStoreRuntimeException("Failed to deserialize key metadata", e);
    }
    copy.skipBytes(metaLen);
    int valLen = copy.readInt();
    ByteBuf valBuf = copy.retainedSlice(copy.readerIndex(), valLen);

    MVCCRecord record = MVCCRecord.newRecord();
    record.setCreateRev(meta.getCreateRevision());
    record.setModRev(meta.getModRevision());
    record.setVersion(meta.getVersion());
    record.setValue(valBuf, meta.getValueType());
    return record;
}

From source file:org.apache.bookkeeper.tools.cli.commands.bookie.FormatUtil.java

License:Apache License

/**
 * Format the message into a readable format.
 * @param pos//from w  w  w  . j  a v  a  2 s .c om
 *          File offset of the message stored in entry log file
 * @param recBuff
 *          Entry Data
 * @param printMsg
 *          Whether printing the message body
 * @param ledgerIdFormatter
 * @param entryFormatter
 */
public static void formatEntry(long pos, ByteBuf recBuff, boolean printMsg, LedgerIdFormatter ledgerIdFormatter,
        EntryFormatter entryFormatter) {
    int entrySize = recBuff.readableBytes();
    long ledgerId = recBuff.readLong();
    long entryId = recBuff.readLong();

    System.out.println("--------- Lid=" + ledgerIdFormatter.formatLedgerId(ledgerId) + ", Eid=" + entryId
            + ", ByteOffset=" + pos + ", EntrySize=" + entrySize + " ---------");
    if (entryId == Bookie.METAENTRY_ID_LEDGER_KEY) {
        int masterKeyLen = recBuff.readInt();
        byte[] masterKey = new byte[masterKeyLen];
        recBuff.readBytes(masterKey);
        System.out.println("Type:           META");
        System.out.println("MasterKey:      " + bytes2Hex(masterKey));
        System.out.println();
        return;
    }
    if (entryId == Bookie.METAENTRY_ID_FENCE_KEY) {
        System.out.println("Type:           META");
        System.out.println("Fenced");
        System.out.println();
        return;
    }
    // process a data entry
    long lastAddConfirmed = recBuff.readLong();
    System.out.println("Type:           DATA");
    System.out.println("LastConfirmed:  " + lastAddConfirmed);
    if (!printMsg) {
        System.out.println();
        return;
    }
    // skip digest checking
    recBuff.skipBytes(8);
    System.out.println("Data:");
    System.out.println();
    try {
        byte[] ret = new byte[recBuff.readableBytes()];
        recBuff.readBytes(ret);
        entryFormatter.formatEntry(ret);
    } catch (Exception e) {
        System.out.println("N/A. Corrupted.");
    }
    System.out.println();
}

From source file:org.apache.cassandra.transport.Frame.java

License:Apache License

private static long discard(ByteBuf buffer, long remainingToDiscard) {
    int availableToDiscard = (int) Math.min(remainingToDiscard, buffer.readableBytes());
    buffer.skipBytes(availableToDiscard);
    return remainingToDiscard - availableToDiscard;
}

From source file:org.apache.distributedlog.LogRecord.java

License:Apache License

protected void readPayload(ByteBuf in, boolean copyData) throws IOException {
    int length = in.readInt();
    if (length < 0) {
        throw new EOFException("Log Record is corrupt: Negative length " + length);
    }//  ww  w.ja va 2s.  c o  m
    if (copyData) {
        setPayloadBuf(in.slice(in.readerIndex(), length), true);
    } else {
        setPayloadBuf(in.retainedSlice(in.readerIndex(), length), false);
    }
    in.skipBytes(length);
}

From source file:org.apache.drill.exec.rpc.ChunkCreationHandler.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {

    if (RpcConstants.EXTRA_DEBUGGING) {
        logger.debug("ChunkCreationHandler called with msg {} of size {} with chunkSize {}", msg,
                msg.readableBytes(), chunkSize);
    }/* w  w w. j ava 2  s .  c  o  m*/

    if (!ctx.channel().isOpen()) {
        logger.debug("Channel closed, skipping encode inside {}.", RpcConstants.CHUNK_CREATION_HANDLER);
        msg.release();
        return;
    }

    // Calculate the number of chunks based on configured chunk size and input msg size
    int numChunks = (int) Math.ceil((double) msg.readableBytes() / chunkSize);

    // Initialize a composite buffer to hold numChunks chunk.
    final CompositeByteBuf cbb = ctx.alloc().compositeBuffer(numChunks);

    int cbbWriteIndex = 0;
    int currentChunkLen = min(msg.readableBytes(), chunkSize);

    // Create slices of chunkSize from input msg and add it to the composite buffer.
    while (numChunks > 0) {
        final ByteBuf chunkBuf = msg.slice(msg.readerIndex(), currentChunkLen);
        chunkBuf.retain();
        cbb.addComponent(chunkBuf);
        cbbWriteIndex += currentChunkLen;
        msg.skipBytes(currentChunkLen);
        --numChunks;
        currentChunkLen = min(msg.readableBytes(), chunkSize);
    }

    // Update the writerIndex of composite byte buffer. Netty doesn't do it automatically.
    cbb.writerIndex(cbbWriteIndex);

    // Add the final composite bytebuf into output buffer.
    out.add(cbb);
}