Package com.alibaba.dubbo.remoting.exchange

Examples of com.alibaba.dubbo.remoting.exchange.Response


            channel.setAttribute(Constants.CHANNEL_ATTRIBUTE_READONLY_KEY, Boolean.TRUE);
        }
    }

    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;
    }
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                Request request = (Request) message;
                if (request.isEvent()) {
                    handlerEvent(channel, request);
                } else {
                    if (request.isTwoWay()) {
                        Response response = handleRequest(exchangeChannel, request);
                        channel.send(response);
                    } else {
                        handler.received(exchangeChannel, request.getData());
                    }
                }
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            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;
                }
            }
        }
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            RpcResult result = new RpcResult();

            result.setException( new RpcException( exception.getMessage() ) );

            Response response = new Response();

            response.setResult( result );

            response.setId( id );

            return response;

        } else if ( message.type == TMessageType.REPLY ) {

            String resultClassName = ExtensionLoader.getExtensionLoader( ClassNameGenerator.class )
                    .getExtension(ThriftClassNameGenerator.NAME).generateResultClassName( serviceName, message.name );

            if ( StringUtils.isEmpty( resultClassName ) ) {
                throw new IllegalArgumentException(
                        new StringBuilder( 32 )
                                .append( "Could not infer service result class name from service name " )
                                .append( serviceName )
                                .append( ", the service name you specified may not generated by thrift idl compiler" )
                                .toString() );
            }

            Class<?> clazz = cachedClass.get( resultClassName );

            if ( clazz == null ) {

                try {

                    clazz = ClassHelper.forNameWithThreadContextClassLoader( resultClassName );

                    cachedClass.putIfAbsent( resultClassName, clazz );

                } catch ( ClassNotFoundException e ) {
                    throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
                }

            }

            TBase<?,? extends TFieldIdEnum> result;
            try {
                result = ( TBase<?,?> ) clazz.newInstance();
            } catch ( InstantiationException e ) {
                throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
            } catch ( IllegalAccessException e ) {
                throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
            }

            try {
                result.read( protocol );
                protocol.readMessageEnd();
            } catch ( TException e ) {
                throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
            }

            Object realResult = null;

            int index = 0;

            while ( true ) {

                TFieldIdEnum fieldIdEnum = result.fieldForId( index++ );

                if ( fieldIdEnum == null ) { break ; }

                Field field;

                try {
                    field = clazz.getDeclaredField( fieldIdEnum.getFieldName() );
                    field.setAccessible( true );
                } catch ( NoSuchFieldException e ) {
                    throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
                }

                try {
                    realResult = field.get( result );
                } catch ( IllegalAccessException e ) {
                    throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
                }

                if ( realResult != null ) { break ; }

            }

            Response response = new Response();

            response.setId( id );

            RpcResult rpcResult = new RpcResult();

            if ( realResult instanceof Throwable ) {
                rpcResult.setException( ( Throwable ) realResult );
            } else {
                rpcResult.setValue(realResult);
            }

            response.setResult( rpcResult );

            return response;

        } else {
            // Impossible
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    public void received(Channel channel, Object message) throws RemotingException {
        setReadTimestamp(channel);
        if (isHeartbeatRequest(message)) {
            Request req = (Request) message;
            if (req.isTwoWay()) {
                Response res = new Response(req.getId(), req.getVersion());
                res.setEvent(Response.HEARTBEAT_EVENT);
                channel.send(res);
                if (logger.isInfoEnabled()) {
                    int heartbeat = channel.getUrl().getParameter(Constants.HEARTBEAT_KEY, 0);
                    if(logger.isDebugEnabled()) {
                        logger.debug("Received heartbeat from remote channel " + channel.getRemoteAddress()
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        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);
View Full Code Here

        ObjectInput in = s.deserialize(channel.getUrl(), is);
        // 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, in);
                    } else if (res.isEvent()) {
                        data = decodeEventData(channel, in);
                    } else {
                        data = decodeResponseData(channel, in, getRequestData(id));
                    }
                    res.setResult(data);
                } catch (Throwable t) {
                    res.setStatus(Response.CLIENT_ERROR);
                    res.setErrorMessage(StringUtils.toString(t));
                }
            } else {
                res.setErrorMessage(in.readUTF());
            }
            return res;
        } else {
            // decode request.
            Request req = new Request(id);
View Full Code Here

            if (! res.isEvent() && res.getStatus() != Response.BAD_RESPONSE) {
                try {
                    // FIXME 在Codec中打印出错日志?在IoHanndler的caught中统一处理?
                    logger.warn("Fail to encode response: " + res + ", send bad_response info instead, cause: " + t.getMessage(), t);
                   
                    Response r = new Response(res.getId(), res.getVersion());
                    r.setStatus(Response.BAD_RESPONSE);
                    r.setErrorMessage("Failed to send response: " + res + ", cause: " + StringUtils.toString(t));
                    channel.send(r);
                   
                    return;
                } catch (RemotingException e) {
                    logger.warn("Failed to send bad_response info back: " + res + ", cause: " + e.getMessage(), e);
View Full Code Here

            RpcResult result = new RpcResult();

            result.setException( new RpcException( exception.getMessage() ) );

            Response response = new Response();

            response.setResult( result );

            response.setId( id );

            return response;

        } else if ( message.type == TMessageType.REPLY ) {

            String resultClassName = ExtensionLoader.getExtensionLoader( ClassNameGenerator.class )
                    .getExtension(ThriftClassNameGenerator.NAME).generateResultClassName( serviceName, message.name );

            if ( StringUtils.isEmpty( resultClassName ) ) {
                throw new IllegalArgumentException(
                        new StringBuilder( 32 )
                                .append( "Could not infer service result class name from service name " )
                                .append( serviceName )
                                .append( ", the service name you specified may not generated by thrift idl compiler" )
                                .toString() );
            }

            Class<?> clazz = cachedClass.get( resultClassName );

            if ( clazz == null ) {

                try {

                    clazz = ClassHelper.forNameWithThreadContextClassLoader( resultClassName );

                    cachedClass.putIfAbsent( resultClassName, clazz );

                } catch ( ClassNotFoundException e ) {
                    throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
                }

            }

            TBase<?,? extends TFieldIdEnum> result;
            try {
                result = ( TBase<?,?> ) clazz.newInstance();
            } catch ( InstantiationException e ) {
                throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
            } catch ( IllegalAccessException e ) {
                throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
            }

            try {
                result.read( protocol );
                protocol.readMessageEnd();
            } catch ( TException e ) {
                throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
            }

            Object realResult = null;

            int index = 0;

            while ( true ) {

                TFieldIdEnum fieldIdEnum = result.fieldForId( index++ );

                if ( fieldIdEnum == null ) { break ; }

                Field field;

                try {
                    field = clazz.getDeclaredField( fieldIdEnum.getFieldName() );
                    field.setAccessible( true );
                } catch ( NoSuchFieldException e ) {
                    throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
                }

                try {
                    realResult = field.get( result );
                } catch ( IllegalAccessException e ) {
                    throw new RpcException( RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e );
                }

                if ( realResult != null ) { break ; }

            }

            Response response = new Response();

            response.setId( id );

            RpcResult rpcResult = new RpcResult();

            if ( realResult instanceof Throwable ) {
                rpcResult.setException( ( Throwable ) realResult );
            } else {
                rpcResult.setValue(realResult);
            }

            response.setResult( rpcResult );

            return response;

        } else {
            // Impossible
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        byte[] request = getRequestBytes(person, header);
       
        Channel channel = getServerSideChannel(url);
        byte[] baddata = new byte[]{1,2};
        ChannelBuffer buffer = ChannelBuffers.wrappedBuffer(join(request, baddata));
        Response obj = (Response)codec.decode(channel, buffer);
        Assert.assertEquals(person, obj.getResult());
        //only decode necessary bytes
        Assert.assertEquals(request.length, buffer.readerIndex());
    }
View Full Code Here

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