Java Code Examples for com.alibaba.dubbo.remoting.exchange.Request#isTwoWay()
The following examples show how to use
com.alibaba.dubbo.remoting.exchange.Request#isTwoWay() .
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Example 1
| Source File: HeaderExchangeHandler.java From dubbo-2.6.5 with Apache License 2.0 | 6 votes |
|
@Override
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 2
| Source File: ConnectionOrderedChannelHandler.java From dubbo-2.6.5 with Apache License 2.0 | 6 votes |
|
@Override
public void received(Channel channel, Object message) throws RemotingException {
ExecutorService cexecutor = getExecutorService();
try {
cexecutor.execute(new ChannelEventRunnable(channel, handler, ChannelState.RECEIVED, message));
} catch (Throwable t) {
//fix, reject exception can not be sent to consumer because thread pool is full, resulting in consumers waiting till timeout. 修复，由于线程池已满，拒绝异常无法发送给使用者，导致使用者等待超时。
if (message instanceof Request && t instanceof RejectedExecutionException) {
Request request = (Request) message;
if (request.isTwoWay()) {
String msg = "Server side(" + url.getIp() + "," + url.getPort() + ") threadpool is exhausted ,detail msg:" + t.getMessage();
Response response = new Response(request.getId(), request.getVersion());
response.setStatus(Response.SERVER_THREADPOOL_EXHAUSTED_ERROR);
response.setErrorMessage(msg);
channel.send(response);
return;
}
}
throw new ExecutionException(message, channel, getClass() + " error when process received event .", t);
}
}
Example 3
| Source File: AllChannelHandler.java From dubbo-2.6.5 with Apache License 2.0 | 6 votes |
|
@Override
public void received(Channel channel, Object message) throws RemotingException {
// 获取缓存线程池
ExecutorService cexecutor = getExecutorService();
try {
// com.alibaba.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run()
cexecutor.execute(new ChannelEventRunnable(channel, handler, ChannelState.RECEIVED, message));
} catch (Throwable t) {
//TODO A temporary solution to the problem that the exception information can not be sent to the opposite end after the thread pool is full. Need a refactoring 线程池满后异常信息不能发送到另一端的问题的临时解决方案。需要一个重构
//fix The thread pool is full, refuses to call, does not return, and causes the consumer to wait for time out 修复线程池已满，拒绝调用，不返回，并导致使用者等待超时
if(message instanceof Request && t instanceof RejectedExecutionException){
Request request = (Request)message;
if(request.isTwoWay()){
String msg = "Server side(" + url.getIp() + "," + url.getPort() + ") threadpool is exhausted ,detail msg:" + t.getMessage();
Response response = new Response(request.getId(), request.getVersion());
response.setStatus(Response.SERVER_THREADPOOL_EXHAUSTED_ERROR);
response.setErrorMessage(msg);
channel.send(response);
return;
}
}
throw new ExecutionException(message, channel, getClass() + " error when process received event .", t);
}
}
Example 4
| Source File: HeaderExchangeHandler.java From dubbox-hystrix with Apache License 2.0 | 6 votes |
|
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 5
| Source File: HeaderExchangeHandler.java From dubbox with Apache License 2.0 | 6 votes |
|
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 6
| Source File: HeaderExchangeHandler.java From dubbo3 with Apache License 2.0 | 6 votes |
|
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 7
| Source File: HeaderExchangeHandler.java From dubbo3 with Apache License 2.0 | 5 votes |
|
public void received(Channel channel, Object message) throws RemotingException {
channel.setAttribute(KEY_READ_TIMESTAMP, System.currentTimeMillis());
ExchangeChannel exchangeChannel = HeaderExchangeChannel.getOrAddChannel(channel);
try {
if (message instanceof Request) {
// handle request.
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());
}
}
} else if (message instanceof Response) {
handleResponse(channel, (Response) message);
} else if (message instanceof String) {
if (isClientSide(channel)) {
Exception e = new Exception("Dubbo client can not supported string message: " + message + " in channel: " + channel + ", url: " + channel.getUrl());
logger.error(e.getMessage(), e);
} else {
String echo = handler.telnet(channel, (String) message);
if (echo != null && echo.length() > 0) {
channel.send(echo);
}
}
} else {
handler.received(exchangeChannel, message);
}
} finally {
HeaderExchangeChannel.removeChannelIfDisconnected(channel);
}
}
Example 8
| Source File: HeartbeatHandler.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
@Override
public void received(Channel channel, Object message) throws RemotingException {
setReadTimestamp(channel);
// 是否是心跳检测时间
if (isHeartbeatRequest(message)) {
Request req = (Request) message;
if (req.isTwoWay()) {
Response res = new Response(req.getId(), req.getVersion());
res.setEvent(Response.HEARTBEAT_EVENT);
// 发送心跳检测请求
channel.send(res);
if (logger.isInfoEnabled()) {
// 获取心跳检测时间 heartbeat属性值
int heartbeat = channel.getUrl().getParameter(Constants.HEARTBEAT_KEY, 0);
if (logger.isDebugEnabled()) {
logger.debug("Received heartbeat from remote channel " + channel.getRemoteAddress()
+ ", cause: The channel has no data-transmission exceeds a heartbeat period"
+ (heartbeat > 0 ? ": " + heartbeat + "ms" : ""));
}
}
}
return;
}
// 是否是心跳检测的响应信息
if (isHeartbeatResponse(message)) {
if (logger.isDebugEnabled()) {
logger.debug("Receive heartbeat response in thread " + Thread.currentThread().getName());
}
return;
}
// =》com.alibaba.dubbo.remoting.transport.dispatcher.all.AllChannelHandler.received()
handler.received(channel, message);
}
Example 9
| Source File: HeartbeatHandler.java From dubbo3 with Apache License 2.0 | 5 votes |
|
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()
+ ", cause: The channel has no data-transmission exceeds a heartbeat period"
+ (heartbeat > 0 ? ": " + heartbeat + "ms" : ""));
}
}
}
return;
}
if (isHeartbeatResponse(message)) {
if (logger.isDebugEnabled()) {
logger.debug(
new StringBuilder(32)
.append("Receive heartbeat response in thread ")
.append(Thread.currentThread().getName())
.toString());
}
return;
}
handler.received(channel, message);
}
Example 10
| Source File: HeaderExchangeHandler.java From dubbox with Apache License 2.0 | 5 votes |
|
public void received(Channel channel, Object message) throws RemotingException {
channel.setAttribute(KEY_READ_TIMESTAMP, System.currentTimeMillis());
ExchangeChannel exchangeChannel = HeaderExchangeChannel.getOrAddChannel(channel);
try {
if (message instanceof Request) {
// handle request.
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());
}
}
} else if (message instanceof Response) {
handleResponse(channel, (Response) message);
} else if (message instanceof String) {
if (isClientSide(channel)) {
Exception e = new Exception("Dubbo client can not supported string message: " + message + " in channel: " + channel + ", url: " + channel.getUrl());
logger.error(e.getMessage(), e);
} else {
String echo = handler.telnet(channel, (String) message);
if (echo != null && echo.length() > 0) {
channel.send(echo);
}
}
} else {
handler.received(exchangeChannel, message);
}
} finally {
HeaderExchangeChannel.removeChannelIfDisconnected(channel);
}
}
Example 11
| Source File: HeartbeatHandler.java From dubbox with Apache License 2.0 | 5 votes |
|
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()
+ ", cause: The channel has no data-transmission exceeds a heartbeat period"
+ (heartbeat > 0 ? ": " + heartbeat + "ms" : ""));
}
}
}
return;
}
if (isHeartbeatResponse(message)) {
if (logger.isDebugEnabled()) {
logger.debug(
new StringBuilder(32)
.append("Receive heartbeat response in thread ")
.append(Thread.currentThread().getName())
.toString());
}
return;
}
handler.received(channel, message);
}
Example 12
| Source File: DeprecatedExchangeCodec.java From dubbo3 with Apache License 2.0 | 5 votes |
|
protected void encodeRequest(Channel channel, OutputStream os, Request req) throws IOException {
Serialization serialization = CodecSupport.getSerialization(channel.getUrl());
// header.
byte[] header = new byte[HEADER_LENGTH];
// set magic number.
Bytes.short2bytes(MAGIC, header);
// set request and serialization flag.
header[2] = (byte) (FLAG_REQUEST | serialization.getContentTypeId());
if (req.isTwoWay()) header[2] |= FLAG_TWOWAY;
if (req.isEvent()) header[2] |= FLAG_EVENT;
// set request id.
Bytes.long2bytes(req.getId(), header, 4);
// encode request data.
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream(1024);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
if (req.isEvent()) {
encodeEventData(channel, out, req.getData());
} else {
encodeRequestData(channel, out, req.getData());
}
out.flushBuffer();
bos.flush();
bos.close();
byte[] data = bos.toByteArray();
checkPayload(channel, data.length);
Bytes.int2bytes(data.length, header, 12);
// write
os.write(header); // write header.
os.write(data); // write data.
}
Example 13
| Source File: DeprecatedExchangeCodec.java From dubbox with Apache License 2.0 | 5 votes |
|
protected void encodeRequest(Channel channel, OutputStream os, Request req) throws IOException {
Serialization serialization = CodecSupport.getSerialization(channel.getUrl());
// header.
byte[] header = new byte[HEADER_LENGTH];
// set magic number.
Bytes.short2bytes(MAGIC, header);
// set request and serialization flag.
header[2] = (byte) (FLAG_REQUEST | serialization.getContentTypeId());
if (req.isTwoWay()) header[2] |= FLAG_TWOWAY;
if (req.isEvent()) header[2] |= FLAG_EVENT;
// set request id.
Bytes.long2bytes(req.getId(), header, 4);
// encode request data.
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream(1024);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
if (req.isEvent()) {
encodeEventData(channel, out, req.getData());
} else {
encodeRequestData(channel, out, req.getData());
}
out.flushBuffer();
bos.flush();
bos.close();
byte[] data = bos.toByteArray();
checkPayload(channel, data.length);
Bytes.int2bytes(data.length, header, 12);
// write
os.write(header); // write header.
os.write(data); // write data.
}
Example 14
| Source File: HeaderExchangeHandler.java From dubbox with Apache License 2.0 | 5 votes |
|
public void received(Channel channel, Object message) throws RemotingException {
channel.setAttribute(KEY_READ_TIMESTAMP, System.currentTimeMillis());
ExchangeChannel exchangeChannel = HeaderExchangeChannel.getOrAddChannel(channel);
try {
if (message instanceof Request) {
// handle request.
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());
}
}
} else if (message instanceof Response) {
handleResponse(channel, (Response) message);
} else if (message instanceof String) {
if (isClientSide(channel)) {
Exception e = new Exception("Dubbo client can not supported string message: " + message + " in channel: " + channel + ", url: " + channel.getUrl());
logger.error(e.getMessage(), e);
} else {
String echo = handler.telnet(channel, (String) message);
if (echo != null && echo.length() > 0) {
channel.send(echo);
}
}
} else {
handler.received(exchangeChannel, message);
}
} finally {
HeaderExchangeChannel.removeChannelIfDisconnected(channel);
}
}
Example 15
| Source File: HeartbeatHandler.java From dubbox with Apache License 2.0 | 5 votes |
|
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()
+ ", cause: The channel has no data-transmission exceeds a heartbeat period"
+ (heartbeat > 0 ? ": " + heartbeat + "ms" : ""));
}
}
}
return;
}
if (isHeartbeatResponse(message)) {
if (logger.isDebugEnabled()) {
logger.debug(
new StringBuilder(32)
.append("Receive heartbeat response in thread ")
.append(Thread.currentThread().getName())
.toString());
}
return;
}
handler.received(channel, message);
}
Example 16
| Source File: HeartbeatHandler.java From dubbox with Apache License 2.0 | 5 votes |
|
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()
+ ", cause: The channel has no data-transmission exceeds a heartbeat period"
+ (heartbeat > 0 ? ": " + heartbeat + "ms" : ""));
}
}
}
return;
}
if (isHeartbeatResponse(message)) {
if (logger.isDebugEnabled()) {
logger.debug(
new StringBuilder(32)
.append("Receive heartbeat response in thread ")
.append(Thread.currentThread().getName())
.toString());
}
return;
}
handler.received(channel, message);
}
Example 17
| Source File: ExecutionChannelHandler.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
@Override
public void received(Channel channel, Object message) throws RemotingException {
ExecutorService cexecutor = getExecutorService();
if (message instanceof Request) {
try {
cexecutor.execute(new ChannelEventRunnable(channel, handler, ChannelState.RECEIVED, message));
} catch (Throwable t) {
// FIXME: when the thread pool is full, SERVER_THREADPOOL_EXHAUSTED_ERROR cannot return properly, 当线程池满时，server_threadpool_sted_error不能正确返回，
// therefore the consumer side has to wait until gets timeout. This is a temporary solution to prevent 因此，客户端必须等待超时。这是一种临时的解决办法
// this scenario from happening, but a better solution should be considered later. 这个场景可能会发生，但是稍后应该考虑更好的解决方案。
if (t instanceof RejectedExecutionException) {
Request request = (Request) message;
if (request.isTwoWay()) {
String msg = "Server side(" + url.getIp() + "," + url.getPort()
+ ") thread pool is exhausted, detail msg:" + t.getMessage();
Response response = new Response(request.getId(), request.getVersion());
response.setStatus(Response.SERVER_THREADPOOL_EXHAUSTED_ERROR);
response.setErrorMessage(msg);
channel.send(response);
return;
}
}
throw new ExecutionException(message, channel, getClass() + " error when process received event.", t);
}
} else {
handler.received(channel, message);
}
}
Example 18
| Source File: DeprecatedExchangeCodec.java From dubbox with Apache License 2.0 | 5 votes |
|
protected void encodeRequest(Channel channel, OutputStream os, Request req) throws IOException {
Serialization serialization = CodecSupport.getSerialization(channel.getUrl());
// header.
byte[] header = new byte[HEADER_LENGTH];
// set magic number.
Bytes.short2bytes(MAGIC, header);
// set request and serialization flag.
header[2] = (byte) (FLAG_REQUEST | serialization.getContentTypeId());
if (req.isTwoWay()) header[2] |= FLAG_TWOWAY;
if (req.isEvent()) header[2] |= FLAG_EVENT;
// set request id.
Bytes.long2bytes(req.getId(), header, 4);
// encode request data.
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream(1024);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
if (req.isEvent()) {
encodeEventData(channel, out, req.getData());
} else {
encodeRequestData(channel, out, req.getData());
}
out.flushBuffer();
bos.flush();
bos.close();
byte[] data = bos.toByteArray();
checkPayload(channel, data.length);
Bytes.int2bytes(data.length, header, 12);
// write
os.write(header); // write header.
os.write(data); // write data.
}
Example 19
| Source File: ExchangeCodec.java From dubbox with Apache License 2.0 | 4 votes |
|
protected void encodeRequest(Channel channel, ChannelBuffer buffer, Request req) throws IOException {
Serialization serialization = getSerialization(channel);
// header.
byte[] header = new byte[HEADER_LENGTH];
// set magic number.
Bytes.short2bytes(MAGIC, header);
// set request and serialization flag.
header[2] = (byte) (FLAG_REQUEST | serialization.getContentTypeId());
if (req.isTwoWay()) header[2] |= FLAG_TWOWAY;
if (req.isEvent()) header[2] |= FLAG_EVENT;
// set request id.
Bytes.long2bytes(req.getId(), header, 4);
// encode request data.
int savedWriteIndex = buffer.writerIndex();
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH);
ChannelBufferOutputStream bos = new ChannelBufferOutputStream(buffer);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
try {
if (req.isEvent()) {
encodeEventData(channel, out, req.getData());
} else {
encodeRequestData(channel, out, req.getData());
}
out.flushBuffer();
} finally {
// modified by lishen
if (out instanceof Cleanable) {
((Cleanable) out).cleanup();
}
}
bos.flush();
bos.close();
int len = bos.writtenBytes();
checkPayload(channel, len);
Bytes.int2bytes(len, header, 12);
// write
buffer.writerIndex(savedWriteIndex);
buffer.writeBytes(header); // write header.
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH + len);
}
Example 20
| Source File: ExchangeCodec.java From dubbo-2.6.5 with Apache License 2.0 | 4 votes |
|
protected void encodeRequest(Channel channel, ChannelBuffer buffer, Request req) throws IOException {
// 从url中serialization这个key值获取序列化方式，默认值是hessian2
Serialization serialization = getSerialization(channel);
// header.
byte[] header = new byte[HEADER_LENGTH];
// set magic number.
Bytes.short2bytes(MAGIC, header);
// set request and serialization flag.
header[2] = (byte) (FLAG_REQUEST | serialization.getContentTypeId());
// 是否需要返回
if (req.isTwoWay()) header[2] |= FLAG_TWOWAY;
if (req.isEvent()) header[2] |= FLAG_EVENT;
// set request id.
Bytes.long2bytes(req.getId(), header, 4);
// encode request data.
int savedWriteIndex = buffer.writerIndex();
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH);
ChannelBufferOutputStream bos = new ChannelBufferOutputStream(buffer);
// 序列化请求数据
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
if (req.isEvent()) {
encodeEventData(channel, out, req.getData());
} else {
encodeRequestData(channel, out, req.getData(), req.getVersion());
}
out.flushBuffer();
if (out instanceof Cleanable) {
((Cleanable) out).cleanup();
}
bos.flush();
bos.close();
int len = bos.writtenBytes();
// 检查服务端支持的网络通讯数据大小，默认8m
checkPayload(channel, len);
Bytes.int2bytes(len, header, 12);
// write
buffer.writerIndex(savedWriteIndex);
buffer.writeBytes(header); // write header.
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH + len);
}
