Example usage for io.netty.buffer CompositeByteBuf addComponents

Introduction

In this page you can find the example usage for io.netty.buffer CompositeByteBuf addComponents.

Prototype

private CompositeByteBuf addComponents(boolean increaseIndex, int cIndex, Iterable<ByteBuf> buffers) 

Source Link

Usage

From source file:com.talent.nio.communicate.receive.DecodeRunnable.java

License:Open Source License

/**
 * @param args/*w ww .  ja va 2 s .  c o m*/
 */
public static void main(String[] args) {
    byte[] bs1 = new byte[] { 1, 10, 11, 12 };
    byte[] bs2 = new byte[] { 2, 2, 2, 2 };
    byte[] bs3 = new byte[] { 3, 3, 3, 3 };
    byte[] bs4 = new byte[] { 4, 4, 4, 4 };
    byte[] bs5 = new byte[] { 5, 5, 5, 5 };
    byte[] bs6 = new byte[] { 6, 6, 6, 6 };

    ByteBuffer buffer1 = ByteBuffer.allocate(1024);
    buffer1.put(bs1);
    buffer1.flip();

    ByteBuf buf1 = Unpooled.copiedBuffer(buffer1);// .copiedBuffer(bs1);

    buffer1.put(bs3);

    ByteBuf buf2 = Unpooled.copiedBuffer(bs2);
    ByteBuf buf3 = Unpooled.copiedBuffer(bs3);
    ByteBuf buf4 = Unpooled.copiedBuffer(bs4);
    ByteBuf buf5 = Unpooled.copiedBuffer(bs5);
    ByteBuf buf6 = Unpooled.copiedBuffer(bs6);

    CompositeByteBuf cb = Unpooled.compositeBuffer();
    cb.addComponents(buf1, buf2, buf3);

    byte dd = cb.getByte(0);

    CompositeByteBuf cb2 = Unpooled.compositeBuffer();
    cb.addComponents(buf4, buf5, buf6);

    // cb.c
    // cb2.writerIndex(128 * 1024);

    cb.addComponent(cb2);

    Long number = cb2.readLong(); // causes IllegalBufferAccessException
                                  // here!

}

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From source file:org.apache.bookkeeper.mledger.offload.jcloud.impl.BlockAwareSegmentInputStreamImpl.java

License:Apache License

private List<ByteBuf> readNextEntriesFromLedger(long start, long maxNumberEntries) throws IOException {
    long end = Math.min(start + maxNumberEntries - 1, ledger.getLastAddConfirmed());
    try (LedgerEntries ledgerEntriesOnce = ledger.readAsync(start, end).get()) {
        log.debug("read ledger entries. start: {}, end: {}", start, end);

        List<ByteBuf> entries = Lists.newLinkedList();

        Iterator<LedgerEntry> iterator = ledgerEntriesOnce.iterator();
        while (iterator.hasNext()) {
            LedgerEntry entry = iterator.next();
            ByteBuf buf = entry.getEntryBuffer().retain();
            int entryLength = buf.readableBytes();
            long entryId = entry.getEntryId();

            CompositeByteBuf entryBuf = PooledByteBufAllocator.DEFAULT.compositeBuffer(2);
            ByteBuf entryHeaderBuf = PooledByteBufAllocator.DEFAULT.buffer(ENTRY_HEADER_SIZE,
                    ENTRY_HEADER_SIZE);//w ww .j  av  a2s .  c om

            entryHeaderBuf.writeInt(entryLength).writeLong(entryId);
            entryBuf.addComponents(true, entryHeaderBuf, buf);

            entries.add(entryBuf);
        }
        return entries;
    } catch (InterruptedException | ExecutionException e) {
        log.error("Exception when get CompletableFuture<LedgerEntries>. ", e);
        if (e instanceof InterruptedException) {
            Thread.currentThread().interrupt();
        }
        throw new IOException(e);
    }
}

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