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

                response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
                return;
            }
        }
        
        Buffer mime=_mimeTypes.getMimeByExtension(resource.toString());
        if (mime==null)
            mime=_mimeTypes.getMimeByExtension(request.getPathInfo());
        
        // set the headers
        doResponseHeaders(response,resource,mime!=null?mime.toString():null);


        // Send the content
        OutputStream out =null;
        try {out = response.getOutputStream();}
        catch(IllegalStateException e) {out = new WriterOutputStream(response.getWriter());}

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         */
        public String getMimeType(String file)
        {
            if (_mimeTypes==null)
                return null;
            Buffer mime = _mimeTypes.getMimeByExtension(file);
            if (mime!=null)
                return mime.toString();
            return null;
        }

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        _port = _uri.getPort();
        if (_serverName != null) 
            return _serverName;


        // Return host from header field
        Buffer hostPort = _connection.getRequestFields().get(HttpHeaders.HOST_BUFFER);
        if (hostPort!=null)
        {
            for (int i=hostPort.length();i-->0;)   
            {
                if (hostPort.peek(hostPort.getIndex()+i)==':')
                {
                    _serverName=BufferUtil.to8859_1_String(hostPort.peek(hostPort.getIndex(), i));
                    _port=BufferUtil.toInt(hostPort.peek(hostPort.getIndex()+i+1, hostPort.length()-i-1));
                    return _serverName;
                }
            }
            if (_serverName==null || _port<0)
            {

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                HttpContent c = (HttpContent) content;
                if (c.getContentType() != null && !_responseFields.containsKey(HttpHeaders.CONTENT_TYPE_BUFFER)) 
                    _responseFields.add(HttpHeaders.CONTENT_TYPE_BUFFER, c.getContentType());
                if (c.getContentLength() > 0) 
                    _responseFields.putLongField(HttpHeaders.CONTENT_LENGTH_BUFFER, c.getContentLength());
                Buffer lm = c.getLastModified();
                long lml=c.getResource().lastModified();
                if (lm != null) 
                    _responseFields.put(HttpHeaders.LAST_MODIFIED_BUFFER, lm,lml);
                else if (c.getResource()!=null)
                {
                    if (lml!=-1)
                        _responseFields.putDateField(HttpHeaders.LAST_MODIFIED_BUFFER, lml);
                }
                    
                content = c.getBuffer();
                if (content==null)
                    content=c.getInputStream();
            }
            else if (content instanceof Resource)
            {
                resource=(Resource)content;
                _responseFields.putDateField(HttpHeaders.LAST_MODIFIED_BUFFER, resource.lastModified());
                content=resource.getInputStream();
            }
            
            
            if (content instanceof Buffer)
            {
                _generator.addContent((Buffer) content, HttpGenerator.LAST);
                commitResponse(HttpGenerator.LAST);
            }
            else if (content instanceof InputStream)
            {
                InputStream in = (InputStream)content;
                
                try
                {
                    int max = _generator.prepareUncheckedAddContent();
                    Buffer buffer = _generator.getUncheckedBuffer();


                    int len=buffer.readFrom(in,max);


                    while (len>=0)
                    {
                        _generator.completeUncheckedAddContent();
                        _out.flush();


                        max = _generator.prepareUncheckedAddContent();
                        buffer = _generator.getUncheckedBuffer();
                        len=buffer.readFrom(in,max);
                    }
                    _generator.completeUncheckedAddContent();
                    _out.flush();   
                }
                finally

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        if (_last || _state==STATE_END) 
            return -1;


        // Handle any unfinished business?
        Buffer content = _content;
        if (content != null && content.length()>0 || _bufferChunked)
        {
            flush();
            if (content != null && content.length()>0 || _bufferChunked) 
                throw new IllegalStateException("FULL");
        }


        // we better check we have a buffer
        if (_buffer == null)

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            {
                if (_version == HttpVersions.HTTP_1_0_ORDINAL) 
                    _close = true;


                // add response line
                Buffer line = HttpStatus.getResponseLine(_status);


                
                if (line==null)
                {
                    if (_reason==null)
                        _reason=getReasonBuffer(_status);


                    _header.put(HttpVersions.HTTP_1_1_BUFFER);
                    _header.put((byte) ' ');
                    _header.put((byte) ('0' + _status / 100));
                    _header.put((byte) ('0' + (_status % 100) / 10));
                    _header.put((byte) ('0' + (_status % 10)));
                    _header.put((byte) ' ');
                    if (_reason==null)
                    {
                        _header.put((byte) ('0' + _status / 100));
                        _header.put((byte) ('0' + (_status % 100) / 10));
                        _header.put((byte) ('0' + (_status % 10)));
                    }
                    else
                        _header.put(_reason);
                    _header.put(HttpTokens.CRLF);
                }
                else
                {
                    if (_reason==null)
                        _header.put(line);
                    else
                    {
                        _header.put(line.array(), 0, HttpVersions.HTTP_1_1_BUFFER.length() + 5);
                        _header.put(_reason);
                        _header.put(HttpTokens.CRLF);
                    }
                }

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        // + Will it be possible to get a DIRECT header buffer just for the gather writes of
        // content from file mapped buffers?  
        // + Are gather writes worth the effort?  Maybe they will work well with two INDIRECT
        // buffers being copied into a single kernel buffer?
        // 
        Buffer buf = null;
        if (size==getHeaderBufferSize())
            buf= new NIOBuffer(size, NIOBuffer.INDIRECT);
        else
            buf = new NIOBuffer(size, _useDirectBuffers?NIOBuffer.DIRECT:NIOBuffer.INDIRECT);
        return buf;

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     * @param name the name of the field
     * @param value the value of the field. If null the field is cleared.
     */
    public void put(String name, String value)
    {
        Buffer n = HttpHeaders.CACHE.lookup(name);
        Buffer v = null;
        if (value != null)
            v = HttpHeaderValues.CACHE.lookup(value);
        put(n, v, -1);
    }

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     * @param name the name of the field
     * @param value the value of the field. If null the field is cleared.
     */
    public void put(Buffer name, String value)
    {
        Buffer v = HttpHeaderValues.CACHE.lookup(value);
        put(name, v, -1);
    }

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        if (list == null || list.size() == 0)
        {
            remove(name);
            return;
        }
        Buffer n = HttpHeaders.CACHE.lookup(name);


        Object v = list.get(0);
        if (v != null)
            put(n, HttpHeaderValues.CACHE.lookup(v.toString()));
        else

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