Examples of org.apache.mina.util.Queue

org.apache.mina.util.Queue
A unbounded circular queue. @author The Apache Directory Project (dev@directory.apache.org) @version $Rev: 357871 $, $Date: 2005-12-20 10:56:40 +0900 (Tue, 20 Dec 2005) $

        this.localAddress = this.serviceAddress = remoteSession.remoteAddress;
        this.remoteAddress = remoteSession.localAddress;
        this.handler = entry.getHandler();
        this.filterChain = new VmPipeFilterChain( this );
        this.remoteSession = remoteSession;
        this.pendingDataQueue = new Queue();
        this.managedSessions = entry.getManagedServerSessions();
    }

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    public void testWriteWhileWriteInProgress() throws Exception
    {
        StreamWriteFilter filter = new StreamWriteFilter();
        
        Queue queue = new Queue();
        InputStream stream = new ByteArrayInputStream( new byte[ 5 ] );
        
        /*
         * Record expectations
         */
        mockSession.reset();
        session.getAttribute( StreamWriteFilter.CURRENT_STREAM );
        mockSession.setReturnValue( stream );
        session.getAttribute( StreamWriteFilter.WRITE_REQUEST_QUEUE );
        mockSession.setReturnValue( queue );
        
        /*
         * Replay.
         */
        mockNextFilter.replay();
        mockSession.replay();


        WriteRequest wr = new WriteRequest( new Object() );
        filter.filterWrite( nextFilter, session, wr );
        assertEquals( 1, queue.size() );
        assertSame( wr, queue.pop() );
        
        /*
         * Verify.
         */
        mockNextFilter.verify();

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        WriteRequest wrs[] = new WriteRequest[] { 
                new WriteRequest( new Object() ),
                new WriteRequest( new Object() ),
                new WriteRequest( new Object() )
        };
        Queue queue = new Queue();
        queue.push( wrs[ 0 ] );
        queue.push( wrs[ 1 ] );
        queue.push( wrs[ 2 ] );
        InputStream stream = new ByteArrayInputStream( new byte[ 0 ] );
        
        /*
         * Record expectations
         */
        mockSession.reset();
        
        session.getAttribute( StreamWriteFilter.CURRENT_STREAM );
        mockSession.setReturnValue( stream );
        session.removeAttribute( StreamWriteFilter.CURRENT_STREAM );
        mockSession.setReturnValue( stream );
        session.removeAttribute( StreamWriteFilter.INITIAL_WRITE_FUTURE );
        mockSession.setReturnValue( new WriteFuture() );
        session.removeAttribute( StreamWriteFilter.WRITE_REQUEST_QUEUE );
        mockSession.setReturnValue( queue );
        
        nextFilter.filterWrite( session, wrs[ 0 ] );
        session.getAttribute( StreamWriteFilter.CURRENT_STREAM );
        mockSession.setReturnValue( null );
        nextFilter.filterWrite( session, wrs[ 1 ] );
        session.getAttribute( StreamWriteFilter.CURRENT_STREAM );
        mockSession.setReturnValue( null );
        nextFilter.filterWrite( session, wrs[ 2 ] );
        session.getAttribute( StreamWriteFilter.CURRENT_STREAM );
        mockSession.setReturnValue( null );
        
        nextFilter.messageSent( session, stream );
        
        /*
         * Replay.
         */
        mockNextFilter.replay();
        mockSession.replay();


        filter.messageSent( nextFilter, session, new Object() );
        assertEquals( 0, queue.size() );
        
        /*
         * Verify.
         */
        mockNextFilter.verify();

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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();
                }


                req.getFuture().setWritten( true );
                session.increaseWrittenWriteRequests();
                ( ( DatagramFilterChain ) session.getFilterChain() ).messageSent( session, buf );
                continue;
            }


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


            int pos = buf.position();
            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 );
                req.getFuture().setWritten( true );
                session.increaseWrittenWriteRequests();

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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();
        this.localAddress = ch.socket().getLocalSocketAddress();
        this.serviceAddress = serviceAddress;

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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();


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


            if( req == null )
                break;


            ByteBuffer buf = ( ByteBuffer ) req.getMessage();
            if( buf.remaining() == 0 )
            {
                synchronized( writeRequestQueue )
                {
                    writeRequestQueue.pop();
                }
                
                req.getFuture().setWritten( true );
                session.increaseWrittenWriteRequests();
                ( ( SocketFilterChain ) session.getFilterChain() ).messageSent( session, buf.reset() );

View Full Code Here

            }


            // 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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        this.manager = manager;
        this.managedSessions = managedSessions;
        this.ioProcessor = SocketIoProcessor.getInstance();
        this.filterChain = new SocketFilterChain( this );
        this.ch = ch;
        this.writeRequestQueue = new Queue();
        this.handler = defaultHandler;
        this.remoteAddress = ch.socket().getRemoteSocketAddress();
        this.localAddress = ch.socket().getLocalSocketAddress();
        this.serviceAddress = serviceAddress;

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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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