org.glassfish.grizzly.filterchain.NextAction Java Examples

The following examples show how to use org.glassfish.grizzly.filterchain.NextAction. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: GrizzlyCodecAdapter.java From dubbox with Apache License 2.0

6 votes

@Override
public NextAction handleWrite(FilterChainContext context) throws IOException {
    Connection<?> connection = context.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer(1024); // 不需要关闭
        
        Object msg = context.getMessage();
        codec.encode(channel, channelBuffer, msg);
        
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
        Buffer buffer = connection.getTransport().getMemoryManager().allocate(channelBuffer.readableBytes());
        buffer.put(channelBuffer.toByteBuffer());
        buffer.flip();
        buffer.allowBufferDispose(true);
        context.setMessage(buffer);
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return context.getInvokeAction();
}

Example #2

Source File: GrizzlyCodecAdapter.java From dubbox with Apache License 2.0

6 votes

@Override
public NextAction handleWrite(FilterChainContext context) throws IOException {
    Connection<?> connection = context.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer(1024); // 不需要关闭
        
        Object msg = context.getMessage();
        codec.encode(channel, channelBuffer, msg);
        
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
        Buffer buffer = connection.getTransport().getMemoryManager().allocate(channelBuffer.readableBytes());
        buffer.put(channelBuffer.toByteBuffer());
        buffer.flip();
        buffer.allowBufferDispose(true);
        context.setMessage(buffer);
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return context.getInvokeAction();
}

Example #3

Source File: GrizzlyCodecAdapter.java From dubbox-hystrix with Apache License 2.0

6 votes

@Override
public NextAction handleWrite(FilterChainContext context) throws IOException {
    Connection<?> connection = context.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer(1024); // 不需要关闭
        
        Object msg = context.getMessage();
        codec.encode(channel, channelBuffer, msg);
        
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
        Buffer buffer = connection.getTransport().getMemoryManager().allocate(channelBuffer.readableBytes());
        buffer.put(channelBuffer.toByteBuffer());
        buffer.flip();
        buffer.allowBufferDispose(true);
        context.setMessage(buffer);
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return context.getInvokeAction();
}

Example #4

Source File: GrizzlyCodecAdapter.java From dubbox with Apache License 2.0

6 votes

@Override
public NextAction handleWrite(FilterChainContext context) throws IOException {
    Connection<?> connection = context.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer(1024); // 不需要关闭
        
        Object msg = context.getMessage();
        codec.encode(channel, channelBuffer, msg);
        
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
        Buffer buffer = connection.getTransport().getMemoryManager().allocate(channelBuffer.readableBytes());
        buffer.put(channelBuffer.toByteBuffer());
        buffer.flip();
        buffer.allowBufferDispose(true);
        context.setMessage(buffer);
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return context.getInvokeAction();
}

Example #5

Source File: GrizzlyCodecAdapter.java From dubbo-2.6.5 with Apache License 2.0

6 votes

@Override
public NextAction handleWrite(FilterChainContext context) throws IOException {
    Connection<?> connection = context.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer(1024); // Do not need to close

        Object msg = context.getMessage();
        codec.encode(channel, channelBuffer, msg);

        GrizzlyChannel.removeChannelIfDisconnected(connection);
        Buffer buffer = connection.getTransport().getMemoryManager().allocate(channelBuffer.readableBytes());
        buffer.put(channelBuffer.toByteBuffer());
        buffer.flip();
        buffer.allowBufferDispose(true);
        context.setMessage(buffer);
    } finally {
        GrizzlyChannel.removeChannelIfDisconnected(connection);
    }
    return context.getInvokeAction();
}

Example #6

Source File: GrizzlyHandler.java From dubbox-hystrix with Apache License 2.0

5 votes

@Override
public NextAction handleClose(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.disconnected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #7

Source File: HeadersFilter.java From FrameworkBenchmarks with BSD 3-Clause "New" or "Revised" License

5 votes

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
	// Taken from HttpServerFilter
	final Object message = ctx.getMessage();
	if (HttpPacket.isHttp(message)) {
		// Otherwise cast message to a HttpContent
		final HttpContent httpContent = (HttpContent) message;
		final HttpRequestPacket request = (HttpRequestPacket) httpContent.getHttpHeader();
		final HttpResponsePacket response = request.getResponse();
		response.setHeader(Header.Server, Server.SERVER_VERSION);
		response.setHeader(Header.Date, FastHttpDateFormat.getCurrentDate());
	}
	return super.handleRead(ctx);
}

Example #8

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleWrite(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.sent(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #9

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.received(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #10

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleClose(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.disconnected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #11

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleConnect(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.connected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #12

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleWrite(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.sent(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #13

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.received(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #14

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleClose(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.disconnected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #15

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleConnect(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.connected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #16

Source File: GrizzlyHandler.java From dubbox-hystrix with Apache License 2.0

5 votes

@Override
public NextAction handleWrite(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.sent(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #17

Source File: GrizzlyHandler.java From dubbox-hystrix with Apache License 2.0

5 votes

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.received(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #18

Source File: GrizzlyHandler.java From dubbox-hystrix with Apache License 2.0

5 votes

@Override
public NextAction handleConnect(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.connected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #19

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleWrite(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.sent(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #20

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.received(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #21

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleClose(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.disconnected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #22

Source File: GrizzlyHandler.java From dubbox with Apache License 2.0

5 votes

@Override
public NextAction handleConnect(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.connected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
    return ctx.getInvokeAction();
}

Example #23

Source File: GrizzlyHandler.java From dubbo-2.6.5 with Apache License 2.0

5 votes

@Override
public NextAction handleWrite(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.sent(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnected(connection);
    }
    return ctx.getInvokeAction();
}

Example #24

Source File: GrizzlyHandler.java From dubbo-2.6.5 with Apache License 2.0

5 votes

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.received(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnected(connection);
    }
    return ctx.getInvokeAction();
}

Example #25

Source File: GrizzlyHandler.java From dubbo-2.6.5 with Apache License 2.0

5 votes

@Override
public NextAction handleClose(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.disconnected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnected(connection);
    }
    return ctx.getInvokeAction();
}

Example #26

Source File: GrizzlyHandler.java From dubbo-2.6.5 with Apache License 2.0

5 votes

@Override
public NextAction handleConnect(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.connected(channel);
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnected(connection);
    }
    return ctx.getInvokeAction();
}

Example #27

Source File: GrizzlyCodecAdapter.java From dubbox-hystrix with Apache License 2.0

4 votes

@Override
public NextAction handleRead(FilterChainContext context) throws IOException {
    Object message = context.getMessage();
    Connection<?> connection = context.getConnection();
    Channel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        if (message instanceof Buffer) { // 收到新的数据包
            Buffer grizzlyBuffer = (Buffer) message; // 缓存

            ChannelBuffer frame;

            if (previousData.readable()) {
                if (previousData instanceof DynamicChannelBuffer) {
                    previousData.writeBytes(grizzlyBuffer.toByteBuffer());
                    frame = previousData;
                } else {
                    int size = previousData.readableBytes() + grizzlyBuffer.remaining();
                    frame = ChannelBuffers.dynamicBuffer(size > bufferSize ? size : bufferSize);
                    frame.writeBytes(previousData, previousData.readableBytes());
                    frame.writeBytes(grizzlyBuffer.toByteBuffer());
                }
            } else {
                frame = ChannelBuffers.wrappedBuffer(grizzlyBuffer.toByteBuffer());
            }

            Object msg;
            int savedReadIndex;

            do {
                savedReadIndex = frame.readerIndex();
                try {
                    msg = codec.decode(channel, frame);
                } catch (Exception e) {
                    previousData = ChannelBuffers.EMPTY_BUFFER;
                    throw new IOException(e.getMessage(), e);
                }
                if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                    frame.readerIndex(savedReadIndex);
                    return context.getStopAction();
                } else {
                    if (savedReadIndex == frame.readerIndex()) {
                        previousData = ChannelBuffers.EMPTY_BUFFER;
                        throw new IOException("Decode without read data.");
                    }
                    if (msg != null) {
                        context.setMessage(msg);
                        return context.getInvokeAction();
                    } else {
                        return context.getInvokeAction();
                    }
                }
            } while (frame.readable());
        } else { // 其它事件直接往下传
            return context.getInvokeAction();
        }
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
}

Example #28

Source File: GrizzlyCodecAdapter.java From dubbox with Apache License 2.0

4 votes

@Override
public NextAction handleRead(FilterChainContext context) throws IOException {
    Object message = context.getMessage();
    Connection<?> connection = context.getConnection();
    Channel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        if (message instanceof Buffer) { // 收到新的数据包
            Buffer grizzlyBuffer = (Buffer) message; // 缓存

            ChannelBuffer frame;

            if (previousData.readable()) {
                if (previousData instanceof DynamicChannelBuffer) {
                    previousData.writeBytes(grizzlyBuffer.toByteBuffer());
                    frame = previousData;
                } else {
                    int size = previousData.readableBytes() + grizzlyBuffer.remaining();
                    frame = ChannelBuffers.dynamicBuffer(size > bufferSize ? size : bufferSize);
                    frame.writeBytes(previousData, previousData.readableBytes());
                    frame.writeBytes(grizzlyBuffer.toByteBuffer());
                }
            } else {
                frame = ChannelBuffers.wrappedBuffer(grizzlyBuffer.toByteBuffer());
            }

            Object msg;
            int savedReadIndex;

            do {
                savedReadIndex = frame.readerIndex();
                try {
                    msg = codec.decode(channel, frame);
                } catch (Exception e) {
                    previousData = ChannelBuffers.EMPTY_BUFFER;
                    throw new IOException(e.getMessage(), e);
                }
                if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                    frame.readerIndex(savedReadIndex);
                    return context.getStopAction();
                } else {
                    if (savedReadIndex == frame.readerIndex()) {
                        previousData = ChannelBuffers.EMPTY_BUFFER;
                        throw new IOException("Decode without read data.");
                    }
                    if (msg != null) {
                        context.setMessage(msg);
                        return context.getInvokeAction();
                    } else {
                        return context.getInvokeAction();
                    }
                }
            } while (frame.readable());
        } else { // 其它事件直接往下传
            return context.getInvokeAction();
        }
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
}

Example #29

Source File: GrizzlyCodecAdapter.java From dubbox with Apache License 2.0

4 votes

@Override
public NextAction handleRead(FilterChainContext context) throws IOException {
    Object message = context.getMessage();
    Connection<?> connection = context.getConnection();
    Channel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        if (message instanceof Buffer) { // 收到新的数据包
            Buffer grizzlyBuffer = (Buffer) message; // 缓存

            ChannelBuffer frame;

            if (previousData.readable()) {
                if (previousData instanceof DynamicChannelBuffer) {
                    previousData.writeBytes(grizzlyBuffer.toByteBuffer());
                    frame = previousData;
                } else {
                    int size = previousData.readableBytes() + grizzlyBuffer.remaining();
                    frame = ChannelBuffers.dynamicBuffer(size > bufferSize ? size : bufferSize);
                    frame.writeBytes(previousData, previousData.readableBytes());
                    frame.writeBytes(grizzlyBuffer.toByteBuffer());
                }
            } else {
                frame = ChannelBuffers.wrappedBuffer(grizzlyBuffer.toByteBuffer());
            }

            Object msg;
            int savedReadIndex;

            do {
                savedReadIndex = frame.readerIndex();
                try {
                    msg = codec.decode(channel, frame);
                } catch (Exception e) {
                    previousData = ChannelBuffers.EMPTY_BUFFER;
                    throw new IOException(e.getMessage(), e);
                }
                if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                    frame.readerIndex(savedReadIndex);
                    return context.getStopAction();
                } else {
                    if (savedReadIndex == frame.readerIndex()) {
                        previousData = ChannelBuffers.EMPTY_BUFFER;
                        throw new IOException("Decode without read data.");
                    }
                    if (msg != null) {
                        context.setMessage(msg);
                        return context.getInvokeAction();
                    } else {
                        return context.getInvokeAction();
                    }
                }
            } while (frame.readable());
        } else { // 其它事件直接往下传
            return context.getInvokeAction();
        }
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
}

Example #30

Source File: GrizzlyCodecAdapter.java From dubbox with Apache License 2.0

4 votes

@Override
public NextAction handleRead(FilterChainContext context) throws IOException {
    Object message = context.getMessage();
    Connection<?> connection = context.getConnection();
    Channel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        if (message instanceof Buffer) { // 收到新的数据包
            Buffer grizzlyBuffer = (Buffer) message; // 缓存

            ChannelBuffer frame;

            if (previousData.readable()) {
                if (previousData instanceof DynamicChannelBuffer) {
                    previousData.writeBytes(grizzlyBuffer.toByteBuffer());
                    frame = previousData;
                } else {
                    int size = previousData.readableBytes() + grizzlyBuffer.remaining();
                    frame = ChannelBuffers.dynamicBuffer(size > bufferSize ? size : bufferSize);
                    frame.writeBytes(previousData, previousData.readableBytes());
                    frame.writeBytes(grizzlyBuffer.toByteBuffer());
                }
            } else {
                frame = ChannelBuffers.wrappedBuffer(grizzlyBuffer.toByteBuffer());
            }

            Object msg;
            int savedReadIndex;

            do {
                savedReadIndex = frame.readerIndex();
                try {
                    msg = codec.decode(channel, frame);
                } catch (Exception e) {
                    previousData = ChannelBuffers.EMPTY_BUFFER;
                    throw new IOException(e.getMessage(), e);
                }
                if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                    frame.readerIndex(savedReadIndex);
                    return context.getStopAction();
                } else {
                    if (savedReadIndex == frame.readerIndex()) {
                        previousData = ChannelBuffers.EMPTY_BUFFER;
                        throw new IOException("Decode without read data.");
                    }
                    if (msg != null) {
                        context.setMessage(msg);
                        return context.getInvokeAction();
                    } else {
                        return context.getInvokeAction();
                    }
                }
            } while (frame.readable());
        } else { // 其它事件直接往下传
            return context.getInvokeAction();
        }
    } finally {
        GrizzlyChannel.removeChannelIfDisconnectd(connection);
    }
}