Examples of org.glassfish.grizzly.Buffer

org.glassfish.grizzly.Buffer
JDK {@link ByteBuffer} was taken as base for GrizzlyBuffer interface, but Buffer has several extensions: it's possible to prepend some data to a Buffer and release Buffer, when it's not required any more. @author Alexey Stashok

        // (expected size) is not met.
        isWaitingDataAsynchronously = false;
        
        // check if it's broken HTTP content message or not
        if (!HttpContent.isBroken(httpContent)) {
            final Buffer buffer = httpContent.getContent();


            if (closed) {
                buffer.dispose();
                return false;
            }
            
            final ReadHandler localHandler = handler;
            
            final boolean isLast = httpContent.isLast();
            
            // if we have a handler registered - switch the flag to true
            boolean askForMoreDataInThisThread = !isLast && localHandler != null;
            boolean invokeDataAvailable = false;


            if (buffer.hasRemaining()) {
                updateInputContentBuffer(buffer);
                if (localHandler != null) {
                    final int available = readyData();
                    if (available >= requestedSize) {
                        invokeDataAvailable = true;

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            final boolean isLast = c.isLast();
            // Check if HttpContent is chunked message trailer w/ headers
            checkHttpTrailer(c);
            
            final Buffer b;
            try {
                b = c.getContent();
            } catch (HttpBrokenContentException e) {
                final Throwable cause = e.getCause();
                throw Exceptions.makeIOException(cause != null ? cause : e);
            }
            
            read += b.remaining();
            updateInputContentBuffer(b);
            c.recycle();
            
            if (isLast) {
                finished();

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            final int chunkSize = 8192;


            try {
                boolean isLast;
                do {
                    final Buffer buffer = ctx.getMemoryManager().allocate(chunkSize);
                    buffer.allowBufferDispose(true);
                    
                    final long readNow = Buffers.readFromFileChannel(fc, buffer);
                    isLast = readNow <= 0 || (remaining -= readNow) <= 0;


                    buffer.trim();
                    ctx.write(HttpContent.builder(response)
                            .content(buffer)
                            .last(isLast)
                            .build());

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        /**
         * Send next CHUNK_SIZE of file
         */
        private boolean sendChunk() throws IOException {
            // allocate Buffer
            final Buffer buffer = mm.allocate(chunkSize);
            // mark it available for disposal after content is written
            buffer.allowBufferDispose(true);


            // read file to the Buffer
            final int justReadBytes = (int) Buffers.readFromFileChannel(
                    fileChannel, buffer);
            
            if (justReadBytes <= 0) {
                complete(false);
                return false;
            }


            // prepare buffer to be written
            buffer.trim();


            // write the Buffer
            outputStream.write(buffer);
            size -= justReadBytes;

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        if (!state.isInitialized()) {
            initializeOutput(state);
        }


        Buffer encodedBuffer = null;
        if (input != null && input.hasRemaining()) {
            try {
                state.setMemoryManager(memoryManager);
                encodedBuffer = encodeBuffer(input, state);
            } catch (IOException ioe) {

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    private Buffer encodeBuffer(Buffer input,
                                LZMAOutputState state) throws IOException {


        Buffer resultBuffer = null;


        state.setSrc(input);
        final Buffer encoded = encode(state);
        if (encoded != null) {
            resultBuffer = Buffers.appendBuffers(state.getMemoryManager(),
                    resultBuffer,
                    encoded);
        }

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    private Buffer encode(LZMAOutputState outputState)
    throws IOException {




        final Encoder encoder = outputState.getEncoder();
        Buffer dst = outputState.getMemoryManager().allocate(512);
        outputState.setDst(dst);


        if (!outputState.isHeaderWritten()) {
            // writes a 5-byte header that the decoder will use in order
            // to achieve parity with the encoder's properties.
            encoder.writeCoderProperties(outputState.getDst());
            outputState.setHeaderWritten(true);
        }


        encoder.code(outputState, -1, -1);
        dst = outputState.getDst();
        int len = dst.position();
        if (len <= 0) {
            dst.dispose();
            return null;
        }


        dst.trim();


        return dst;
    }

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            blockAfterWriteIfNeeded();
        } else {
            // if we can't write the chunk - buffer it.
            finishCurrentBuffer();
            final Buffer cloneBuffer = memoryManager.allocate(len);
            cloneBuffer.put(b, off, len);
            cloneBuffer.flip();
            checkCompositeBuffer();
            
            compositeBuffer.append(cloneBuffer);
        }
    }

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     * @param byteBuffer the {@link ByteBuffer} to write
     * @throws IOException if an error occurs during the write
     */
    @SuppressWarnings({"unchecked", "UnusedDeclaration"})
    public void writeByteBuffer(final ByteBuffer byteBuffer) throws IOException {
        final Buffer w = Buffers.wrap(memoryManager, byteBuffer);
        w.allowBufferDispose(false);
        writeBuffer(w);
    }

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                return false;
            } else {
                outputHeader.setContentLength(getBufferedDataSize());
            }
        }
        final Buffer bufferToFlush;
        final boolean isFlushComposite = compositeBuffer != null && compositeBuffer.hasRemaining();


        if (isFlushComposite) {
            finishCurrentBuffer();
            bufferToFlush = compositeBuffer;

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