Java Code Examples for org.apache.mina.common.ByteBuffer#remaining()

The following examples show how to use org.apache.mina.common.ByteBuffer#remaining() . 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: WelderDecoder.java    From camelinaction with Apache License 2.0 6 votes vote down vote up 
protected boolean doDecode(IoSession session, ByteBuffer in, ProtocolDecoderOutput out) throws Exception {
    if (in.remaining() >= PAYLOAD_SIZE) {
        byte[] buf = new byte[in.remaining()];
        in.get(buf);
        
        // first 7 bytes are the sensor ID, last is the status
        // and the result message will look something like
        // MachineID=2371748;Status=Good
        StringBuilder sb = new StringBuilder();
        sb.append("MachineID=")
        .append(new String(buf, 0, PAYLOAD_SIZE - 1)).append(";")
        .append("Status=");
        if (buf[PAYLOAD_SIZE - 1] == '1') {
            sb.append("Good");
        } else {
            sb.append("Failure");
        }
        out.write(sb.toString());
        return true;
    } else {
        return false;
    }
}
Example 2
Source File: MinaCodecAdapter.java    From dubbo-2.6.5 with Apache License 2.0 4 votes vote down vote up 
@Override
public void decode(IoSession session, ByteBuffer in, ProtocolDecoderOutput out) throws Exception {
    int readable = in.limit();
    if (readable <= 0) return;

    ChannelBuffer frame;

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

    Channel channel = MinaChannel.getOrAddChannel(session, url, handler);
    Object msg;
    int savedReadIndex;

    try {
        do {
            savedReadIndex = frame.readerIndex();
            try {
                msg = codec.decode(channel, frame);
            } catch (Exception e) {
                buffer = ChannelBuffers.EMPTY_BUFFER;
                throw e;
            }
            if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                frame.readerIndex(savedReadIndex);
                break;
            } else {
                if (savedReadIndex == frame.readerIndex()) {
                    buffer = ChannelBuffers.EMPTY_BUFFER;
                    throw new Exception("Decode without read data.");
                }
                if (msg != null) {
                    out.write(msg);
                }
            }
        } while (frame.readable());
    } finally {
        if (frame.readable()) {
            frame.discardReadBytes();
            buffer = frame;
        } else {
            buffer = ChannelBuffers.EMPTY_BUFFER;
        }
        MinaChannel.removeChannelIfDisconnected(session);
    }
}
Example 3
Source File: MinaCodecAdapter.java    From dubbox with Apache License 2.0 4 votes vote down vote up 
public void decode(IoSession session, ByteBuffer in, ProtocolDecoderOutput out) throws Exception {
    int readable = in.limit();
    if (readable <= 0) return;

    ChannelBuffer frame;

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

    Channel channel = MinaChannel.getOrAddChannel(session, url, handler);
    Object msg;
    int savedReadIndex;

    try {
        do {
            savedReadIndex = frame.readerIndex();
            try {
                msg = codec.decode(channel, frame);
            } catch (Exception e) {
                buffer = ChannelBuffers.EMPTY_BUFFER;
                throw e;
            }
            if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                frame.readerIndex(savedReadIndex);
                break;
            } else {
                if (savedReadIndex == frame.readerIndex()) {
                    buffer = ChannelBuffers.EMPTY_BUFFER;
                    throw new Exception("Decode without read data.");
                }
                if (msg != null) {
                    out.write(msg);
                }
            }
        } while (frame.readable());
    } finally {
        if (frame.readable()) {
            frame.discardReadBytes();
            buffer = frame;
        } else {
            buffer = ChannelBuffers.EMPTY_BUFFER;
        }
        MinaChannel.removeChannelIfDisconnectd(session);
    }
}
Example 4
Source File: MinaCodecAdapter.java    From dubbox-hystrix with Apache License 2.0 4 votes vote down vote up 
public void decode(IoSession session, ByteBuffer in, ProtocolDecoderOutput out) throws Exception {
    int readable = in.limit();
    if (readable <= 0) return;

    ChannelBuffer frame;

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

    Channel channel = MinaChannel.getOrAddChannel(session, url, handler);
    Object msg;
    int savedReadIndex;

    try {
        do {
            savedReadIndex = frame.readerIndex();
            try {
                msg = codec.decode(channel, frame);
            } catch (Exception e) {
                buffer = ChannelBuffers.EMPTY_BUFFER;
                throw e;
            }
            if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                frame.readerIndex(savedReadIndex);
                break;
            } else {
                if (savedReadIndex == frame.readerIndex()) {
                    buffer = ChannelBuffers.EMPTY_BUFFER;
                    throw new Exception("Decode without read data.");
                }
                if (msg != null) {
                    out.write(msg);
                }
            }
        } while (frame.readable());
    } finally {
        if (frame.readable()) {
            frame.discardReadBytes();
            buffer = frame;
        } else {
            buffer = ChannelBuffers.EMPTY_BUFFER;
        }
        MinaChannel.removeChannelIfDisconnectd(session);
    }
}
Example 5
Source File: MinaCodecAdapter.java    From dubbox with Apache License 2.0 4 votes vote down vote up 
public void decode(IoSession session, ByteBuffer in, ProtocolDecoderOutput out) throws Exception {
    int readable = in.limit();
    if (readable <= 0) return;

    ChannelBuffer frame;

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

    Channel channel = MinaChannel.getOrAddChannel(session, url, handler);
    Object msg;
    int savedReadIndex;

    try {
        do {
            savedReadIndex = frame.readerIndex();
            try {
                msg = codec.decode(channel, frame);
            } catch (Exception e) {
                buffer = ChannelBuffers.EMPTY_BUFFER;
                throw e;
            }
            if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                frame.readerIndex(savedReadIndex);
                break;
            } else {
                if (savedReadIndex == frame.readerIndex()) {
                    buffer = ChannelBuffers.EMPTY_BUFFER;
                    throw new Exception("Decode without read data.");
                }
                if (msg != null) {
                    out.write(msg);
                }
            }
        } while (frame.readable());
    } finally {
        if (frame.readable()) {
            frame.discardReadBytes();
            buffer = frame;
        } else {
            buffer = ChannelBuffers.EMPTY_BUFFER;
        }
        MinaChannel.removeChannelIfDisconnectd(session);
    }
}
Example 6
Source File: MinaCodecAdapter.java    From dubbox with Apache License 2.0 4 votes vote down vote up 
public void decode(IoSession session, ByteBuffer in, ProtocolDecoderOutput out) throws Exception {
    int readable = in.limit();
    if (readable <= 0) return;

    ChannelBuffer frame;

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

    Channel channel = MinaChannel.getOrAddChannel(session, url, handler);
    Object msg;
    int savedReadIndex;

    try {
        do {
            savedReadIndex = frame.readerIndex();
            try {
                msg = codec.decode(channel, frame);
            } catch (Exception e) {
                buffer = ChannelBuffers.EMPTY_BUFFER;
                throw e;
            }
            if (msg == Codec2.DecodeResult.NEED_MORE_INPUT) {
                frame.readerIndex(savedReadIndex);
                break;
            } else {
                if (savedReadIndex == frame.readerIndex()) {
                    buffer = ChannelBuffers.EMPTY_BUFFER;
                    throw new Exception("Decode without read data.");
                }
                if (msg != null) {
                    out.write(msg);
                }
            }
        } while (frame.readable());
    } finally {
        if (frame.readable()) {
            frame.discardReadBytes();
            buffer = frame;
        } else {
            buffer = ChannelBuffers.EMPTY_BUFFER;
        }
        MinaChannel.removeChannelIfDisconnectd(session);
    }
}