Examples with Response com.alibaba.dubbo.remoting.exchange.Response used on opensource projects

Example 11 with Response

use of com.alibaba.dubbo.remoting.exchange.Response in project dubbo by alibaba.

the class DefaultFuture method invokeCallback.

private void invokeCallback(ResponseCallback c) {
    ResponseCallback callbackCopy = c;
    if (callbackCopy == null) {
        throw new NullPointerException("callback cannot be null.");
    }
    c = null;
    Response res = response;
    if (res == null) {
        throw new IllegalStateException("response cannot be null. url:" + channel.getUrl());
    }
    if (res.getStatus() == Response.OK) {
        try {
            callbackCopy.done(res.getResult());
        } catch (Exception e) {
            logger.error("callback invoke error .reasult:" + res.getResult() + ",url:" + channel.getUrl(), e);
        }
    } else if (res.getStatus() == Response.CLIENT_TIMEOUT || res.getStatus() == Response.SERVER_TIMEOUT) {
        try {
            TimeoutException te = new TimeoutException(res.getStatus() == Response.SERVER_TIMEOUT, channel, res.getErrorMessage());
            callbackCopy.caught(te);
        } catch (Exception e) {
            logger.error("callback invoke error ,url:" + channel.getUrl(), e);
        }
    } else {
        try {
            RuntimeException re = new RuntimeException(res.getErrorMessage());
            callbackCopy.caught(re);
        } catch (Exception e) {
            logger.error("callback invoke error ,url:" + channel.getUrl(), e);
        }
    }
}

Example 12 with Response

use of com.alibaba.dubbo.remoting.exchange.Response in project dubbo by alibaba.

the class HeaderExchangeChannel method send.

public void send(Object message, boolean sent) throws RemotingException {
    if (closed) {
        throw new RemotingException(this.getLocalAddress(), null, "Failed to send message " + message + ", cause: The channel " + this + " is closed!");
    }
    if (message instanceof Request || message instanceof Response || message instanceof String) {
        channel.send(message, sent);
    } else {
        Request request = new Request();
        request.setVersion("2.0.0");
        request.setTwoWay(false);
        request.setData(message);
        channel.send(request, sent);
    }
}

Example 13 with Response

use of com.alibaba.dubbo.remoting.exchange.Response in project dubbo by alibaba.

the class HeaderExchangeHandler method caught.

public void caught(Channel channel, Throwable exception) throws RemotingException {
    if (exception instanceof ExecutionException) {
        ExecutionException e = (ExecutionException) exception;
        Object msg = e.getRequest();
        if (msg instanceof Request) {
            Request req = (Request) msg;
            if (req.isTwoWay() && !req.isHeartbeat()) {
                Response res = new Response(req.getId(), req.getVersion());
                res.setStatus(Response.SERVER_ERROR);
                res.setErrorMessage(StringUtils.toString(e));
                channel.send(res);
                return;
            }
        }
    }
    ExchangeChannel exchangeChannel = HeaderExchangeChannel.getOrAddChannel(channel);
    try {
        handler.caught(exchangeChannel, exception);
    } finally {
        HeaderExchangeChannel.removeChannelIfDisconnected(channel);
    }
}

Example 14 with Response

use of com.alibaba.dubbo.remoting.exchange.Response in project dubbo by alibaba.

the class HeaderExchangeHandler method handleRequest.

Response handleRequest(ExchangeChannel channel, Request req) throws RemotingException {
    Response res = new Response(req.getId(), req.getVersion());
    if (req.isBroken()) {
        Object data = req.getData();
        String msg;
        if (data == null)
            msg = null;
        else if (data instanceof Throwable)
            msg = StringUtils.toString((Throwable) data);
        else
            msg = data.toString();
        res.setErrorMessage("Fail to decode request due to: " + msg);
        res.setStatus(Response.BAD_REQUEST);
        return res;
    }
    // find handler by message class.
    Object msg = req.getData();
    try {
        // handle data.
        Object result = handler.reply(channel, msg);
        res.setStatus(Response.OK);
        res.setResult(result);
    } catch (Throwable e) {
        res.setStatus(Response.SERVICE_ERROR);
        res.setErrorMessage(StringUtils.toString(e));
    }
    return res;
}

Example 15 with Response

use of com.alibaba.dubbo.remoting.exchange.Response in project dubbo by alibaba.

the class DubboCodec method decodeBody.

protected Object decodeBody(Channel channel, InputStream is, byte[] header) throws IOException {
    byte flag = header[2], proto = (byte) (flag & SERIALIZATION_MASK);
    Serialization s = CodecSupport.getSerialization(channel.getUrl(), proto);
    // get request id.
    long id = Bytes.bytes2long(header, 4);
    if ((flag & FLAG_REQUEST) == 0) {
        // decode response.
        Response res = new Response(id);
        if ((flag & FLAG_EVENT) != 0) {
            res.setEvent(Response.HEARTBEAT_EVENT);
        }
        // get status.
        byte status = header[3];
        res.setStatus(status);
        if (status == Response.OK) {
            try {
                Object data;
                if (res.isHeartbeat()) {
                    data = decodeHeartbeatData(channel, deserialize(s, channel.getUrl(), is));
                } else if (res.isEvent()) {
                    data = decodeEventData(channel, deserialize(s, channel.getUrl(), is));
                } else {
                    DecodeableRpcResult result;
                    if (channel.getUrl().getParameter(Constants.DECODE_IN_IO_THREAD_KEY, Constants.DEFAULT_DECODE_IN_IO_THREAD)) {
                        result = new DecodeableRpcResult(channel, res, is, (Invocation) getRequestData(id), proto);
                        result.decode();
                    } else {
                        result = new DecodeableRpcResult(channel, res, new UnsafeByteArrayInputStream(readMessageData(is)), (Invocation) getRequestData(id), proto);
                    }
                    data = result;
                }
                res.setResult(data);
            } catch (Throwable t) {
                if (log.isWarnEnabled()) {
                    log.warn("Decode response failed: " + t.getMessage(), t);
                }
                res.setStatus(Response.CLIENT_ERROR);
                res.setErrorMessage(StringUtils.toString(t));
            }
        } else {
            res.setErrorMessage(deserialize(s, channel.getUrl(), is).readUTF());
        }
        return res;
    } else {
        // decode request.
        Request req = new Request(id);
        req.setVersion("2.0.0");
        req.setTwoWay((flag & FLAG_TWOWAY) != 0);
        if ((flag & FLAG_EVENT) != 0) {
            req.setEvent(Request.HEARTBEAT_EVENT);
        }
        try {
            Object data;
            if (req.isHeartbeat()) {
                data = decodeHeartbeatData(channel, deserialize(s, channel.getUrl(), is));
            } else if (req.isEvent()) {
                data = decodeEventData(channel, deserialize(s, channel.getUrl(), is));
            } else {
                DecodeableRpcInvocation inv;
                if (channel.getUrl().getParameter(Constants.DECODE_IN_IO_THREAD_KEY, Constants.DEFAULT_DECODE_IN_IO_THREAD)) {
                    inv = new DecodeableRpcInvocation(channel, req, is, proto);
                    inv.decode();
                } else {
                    inv = new DecodeableRpcInvocation(channel, req, new UnsafeByteArrayInputStream(readMessageData(is)), proto);
                }
                data = inv;
            }
            req.setData(data);
        } catch (Throwable t) {
            if (log.isWarnEnabled()) {
                log.warn("Decode request failed: " + t.getMessage(), t);
            }
            // bad request
            req.setBroken(true);
            req.setData(t);
        }
        return req;
    }
}