Package org.apache.mina.util

Examples of org.apache.mina.util.Queue

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        void doWrite( IoSession session )
        {
            IoProtocolSession psession = getProtocolSession( session );
            ProtocolEncoder encoder = psession.encoder;
            Queue writeQueue = psession.writeQueue;

            if( writeQueue.isEmpty() )
            {
                return;
            }

            try
            {
                while( !writeQueue.isEmpty() )
                {
                    synchronized( writeQueue )
                    {
                        Object message = writeQueue.pop();
                        if( message == null )
                            break;

                        Queue queue = psession.encOut.getBufferQueue();
                        encoder.encode( psession, message, psession.encOut );
                        for( ;; )
                        {
                            ByteBuffer buf = ( ByteBuffer ) queue.pop();
                            if( buf == null )
                                break;
                            // use marker only if it is the last ByteBuffer
                            Object marker = queue.isEmpty() ? message : null;
                            session.write( buf, marker );
                        }
                    }
                }
            }
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        bufferQueue.push(newBuf);
    }
   
    public WriteFuture flush()
    {
        Queue bufferQueue = this.bufferQueue;
        WriteFuture future = null;
        if( bufferQueue.isEmpty() )
        {
            return null;
        }
        else
        {
            for( ;; )
            {
                ByteBuffer buf = ( ByteBuffer ) bufferQueue.pop();
                if( buf == null )
                {
                    break;
                }
               
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        }
    }

    private void releaseWriteBuffers( SocketSessionImpl session )
    {
        Queue writeRequestQueue = session.getWriteRequestQueue();
        WriteRequest req;

        while( ( req = ( WriteRequest ) writeRequestQueue.pop() ) != null )
        {
            try
            {
                ( ( ByteBuffer ) req.getMessage() ).release();
            }
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        // Clear OP_WRITE
        SelectionKey key = session.getSelectionKey();
        key.interestOps( key.interestOps() & ( ~SelectionKey.OP_WRITE ) );

        SocketChannel ch = session.getChannel();
        Queue writeRequestQueue = session.getWriteRequestQueue();

        for( ; ; )
        {
            WriteRequest req;

            synchronized( writeRequestQueue )
            {
                req = ( WriteRequest ) writeRequestQueue.first();
            }

            if( req == null )
                break;

            ByteBuffer buf = ( ByteBuffer ) req.getMessage();
            if( buf.remaining() == 0 )
            {
                synchronized( writeRequestQueue )
                {
                    writeRequestQueue.pop();
                }

                session.increaseWrittenMessages();

                buf.reset();
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            }

            // The normal is OP_READ and, if there are write requests in the
            // session's write queue, set OP_WRITE to trigger flushing.
            int ops = SelectionKey.OP_READ;
            Queue writeRequestQueue = session.getWriteRequestQueue();
            synchronized( writeRequestQueue )
            {
                if( !writeRequestQueue.isEmpty() )
                {
                    ops |= SelectionKey.OP_WRITE;
                }
            }
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            }

            // The normal is OP_READ and, if there are write requests in the
            // session's write queue, set OP_WRITE to trigger flushing.
            int ops = SelectionKey.OP_READ;
            Queue writeRequestQueue = session.getWriteRequestQueue();
            synchronized( writeRequestQueue )
            {
                if( !writeRequestQueue.isEmpty() )
                {
                    ops |= SelectionKey.OP_WRITE;
                }
            }
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    private void flush( DatagramSessionImpl session ) throws IOException
    {
        DatagramChannel ch = session.getChannel();

        Queue writeRequestQueue = session.getWriteRequestQueue();

        WriteRequest req;
        for( ;; )
        {
            synchronized( writeRequestQueue )
            {
                req = ( WriteRequest ) writeRequestQueue.first();
            }

            if( req == null )
                break;

            ByteBuffer buf = ( ByteBuffer ) req.getMessage();
            if( buf.remaining() == 0 )
            {
                // pop and fire event
                synchronized( writeRequestQueue )
                {
                    writeRequestQueue.pop();
                }

                session.increaseWrittenMessages();
                buf.reset();
                session.getFilterChain().fireMessageSent( session, req );
                continue;
            }

            SelectionKey key = session.getSelectionKey();
            if( key == null )
            {
                scheduleFlush( session );
                break;
            }
            if( !key.isValid() )
            {
                continue;
            }

            int writtenBytes = ch.write( buf.buf() );

            if( writtenBytes == 0 )
            {
                // Kernel buffer is full
                key.interestOps( key.interestOps() | SelectionKey.OP_WRITE );
            }
            else if( writtenBytes > 0 )
            {
                key.interestOps( key.interestOps()
                                 & ( ~SelectionKey.OP_WRITE ) );

                // pop and fire event
                synchronized( writeRequestQueue )
                {
                    writeRequestQueue.pop();
                }

                session.increaseWrittenBytes( writtenBytes );
                session.increaseWrittenMessages();
                buf.reset();
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    {
        this.wrapperManager = wrapperManager;
        this.managerDelegate = managerDelegate;
        this.filterChain = new DatagramFilterChain( this );
        this.ch = ch;
        this.writeRequestQueue = new Queue();
        this.handler = defaultHandler;
        this.remoteAddress = ch.socket().getRemoteSocketAddress();

        // We didn't set the localhost by calling getLocalSocketAddress() to avoid
        // the case that getLocalSocketAddress() returns IPv6 address while
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                            WriteRequest writeRequest ) throws Exception
    {
        // If we're already processing a stream we need to queue the WriteRequest.
        if( session.getAttribute( CURRENT_STREAM ) != null )
        {
            Queue queue = ( Queue ) session.getAttribute( WRITE_REQUEST_QUEUE );
            if( queue == null )
            {
                queue = new Queue();
                session.setAttribute( WRITE_REQUEST_QUEUE, queue );
            }
            queue.push( writeRequest );
            return;
        }
       
        Object message = writeRequest.getMessage();
       
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                // End of stream reached.
                session.removeAttribute( CURRENT_STREAM );
                WriteFuture writeFuture = ( WriteFuture ) session.removeAttribute( INITIAL_WRITE_FUTURE );
               
                // Write queued WriteRequests.
                Queue queue = ( Queue ) session.removeAttribute( WRITE_REQUEST_QUEUE );
                if( queue != null )
                {
                    WriteRequest wr = ( WriteRequest ) queue.pop();
                    while( wr != null )
                    {
                        filterWrite( nextFilter, session, wr );
                        wr = ( WriteRequest ) queue.pop();
                    }
                }
               
                writeFuture.setWritten( true );
                nextFilter.messageSent( session, inputStream );
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Related Classes of org.apache.mina.util.Queue

  • org.apache.mina.filter.codec.ProtocolCodecFilter
  • org.apache.mina.filter.codec.support.SimpleProtocolEncoderOutput
  • org.apache.mina.filter.StreamWriteFilter
  • org.apache.mina.filter.StreamWriteFilterTest
  • org.apache.mina.filter.ThreadPoolFilter
  • org.apache.mina.filter.ThreadPoolFilter$Worker
  • org.apache.mina.io.datagram.DatagramAcceptor
  • org.apache.mina.io.datagram.DatagramConnector
  • org.apache.mina.io.datagram.DatagramSession
  • org.apache.mina.io.datagram.DatagramSessionManagerFilterChain
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