Examples of org.mortbay.io.Buffer

org.mortbay.io.Buffer
Byte Buffer interface. This is a byte buffer that is designed to work like a FIFO for bytes. Puts and Gets operate on different pointers into the buffer and the valid _content of the buffer is always between the getIndex and the putIndex. This buffer interface is designed to be similar, but not dependant on the java.nio buffers, which may be used to back an implementation of this Buffer. The main difference is that NIO buffer after a put have their valid _content before the position and a flip is required to access that data. For this buffer it is always true that: markValue <= getIndex <= putIndex <= capacity @author gregw @version 1.0

    /* (non-Javadoc)
     * @see org.mortbay.io.EndPoint#fill(org.mortbay.io.Buffer)
     */
    public int fill(Buffer buffer) throws IOException
    {
        Buffer buf = buffer.buffer();
        int len=0;
        if (buf instanceof NIOBuffer)
        {
            NIOBuffer nbuf = (NIOBuffer)buf;
            ByteBuffer bbuf=nbuf.getByteBuffer();

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    /* (non-Javadoc)
     * @see org.mortbay.io.EndPoint#flush(org.mortbay.io.Buffer)
     */
    public int flush(Buffer buffer) throws IOException
    {
        Buffer buf = buffer.buffer();
        int len=0;
        if (buf instanceof NIOBuffer)
        {
            NIOBuffer nbuf = (NIOBuffer)buf;
            ByteBuffer bbuf=nbuf.getByteBuffer();

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     */
    public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException
    {
        int length=0;


        Buffer buf0 = header==null?null:header.buffer();
        Buffer buf1 = buffer==null?null:buffer.buffer();
        
        if (_channel instanceof GatheringByteChannel &&
            header!=null && header.length()!=0 && header instanceof NIOBuffer && 
            buffer!=null && buffer.length()!=0 && buffer instanceof NIOBuffer)
        {

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            String ifms=request.getHeader(HttpHeaders.IF_MODIFIED_SINCE);
            if (ifms!=null)
            {
                if (content!=null)
                {
                    Buffer mdlm=content.getLastModified();
                    if (mdlm!=null)
                    {
                        if (ifms.equals(mdlm.toString()))
                        {
                            response.reset();
                            response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
                            response.flushBuffer();
                            return false;

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        }


        /* ------------------------------------------------------------ */
        protected void fill(Content content) throws IOException
        {
            Buffer buffer=null;
            Resource resource=content.getResource();
            long length=resource.length();


            if (_useFileMappedBuffer && resource.getFile()!=null) 
            {    
                File file = resource.getFile();
                if (file != null) 
                    buffer = new NIOBuffer(file);
            } 
            else 
            {
                InputStream is = resource.getInputStream();
                try
                {
                    Connector connector = HttpConnection.getCurrentConnection().getConnector();
                    buffer = new NIOBuffer((int) length, ((NIOConnector)connector).getUseDirectBuffers()?NIOBuffer.DIRECT:NIOBuffer.INDIRECT);
                }
                catch(OutOfMemoryError e)
                {
                    Log.warn(e.toString());
                    Log.debug(e);
                    buffer = new NIOBuffer((int) length, NIOBuffer.INDIRECT);
                }
                buffer.readFrom(is,(int)length);
                is.close();
            }
            content.setBuffer(buffer);
        }

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    {
        try
        {
            InputStream in = content.getResource().getInputStream();
            int len=(int)content.getResource().length();
            Buffer buffer = new ByteArrayBuffer(len);
            buffer.readFrom(in,len);
            in.close();
            content.setBuffer(buffer);
        }
        finally
        {

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        }
    }
    
    protected static Buffer getReasonBuffer(int code)
    {
        Buffer reason=(code<__reasons.length)?__reasons[code]:null;
        return reason==null?null:reason;
    }

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        return reason==null?null:reason;
    }
    
    public static String getReason(int code)
    {
        Buffer reason=(code<__reasons.length)?__reasons[code]:null;
        return reason==null?TypeUtil.toString(code):reason.toString();
    }

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        if (contentBufferSize > _contentBufferSize)
        {
            _contentBufferSize = contentBufferSize;
            if (_buffer != null)
            {
                Buffer nb = _buffers.getBuffer(_contentBufferSize);
                nb.put(_buffer);
                _buffers.returnBuffer(_buffer);
                _buffer = nb;
            }
        }
    }

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        /* ------------------------------------------------------------ */
        public void flush() throws IOException
        {
            // block until everything is flushed
            Buffer content = _generator._content;
            Buffer buffer = _generator._buffer;
            if (content!=null && content.length()>0 ||buffer!=null && buffer.length()>0)
            {
                _generator.flush();
                
                while ((content!=null && content.length()>0 ||buffer!=null && buffer.length()>0) && _generator._endp.isOpen())
                    blockForOutput();
            }
        }

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