Java Code Examples for com.alibaba.dubbo.remoting.Channel#send()
The following examples show how to use
com.alibaba.dubbo.remoting.Channel#send() .
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Example 1
| 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 2
| 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 3
| Source File: AbstractClient.java From dubbox with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
if (send_reconnect && !isConnected()){
connect();
}
Channel channel = getChannel();
//TODO getChannel返回的状态是否包含null需要改进
if (channel == null || ! channel.isConnected()) {
throw new RemotingException(this, "message can not send, because channel is closed . url:" + getUrl());
}
channel.send(message, sent);
}
Example 4
| Source File: AbstractServer.java From dubbox with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
Collection<Channel> channels = getChannels();
for (Channel channel : channels) {
if (channel.isConnected()) {
channel.send(message, sent);
}
}
}
Example 5
| Source File: AbstractClient.java From dubbox with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
if (send_reconnect && !isConnected()){
connect();
}
Channel channel = getChannel();
//TODO getChannel返回的状态是否包含null需要改进
if (channel == null || ! channel.isConnected()) {
throw new RemotingException(this, "message can not send, because channel is closed . url:" + getUrl());
}
channel.send(message, sent);
}
Example 6
| Source File: AbstractServer.java From dubbox with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
Collection<Channel> channels = getChannels();
for (Channel channel : channels) {
if (channel.isConnected()) {
channel.send(message, sent);
}
}
}
Example 7
| Source File: HeartbeatHandler.java From dubbox-hystrix 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 8
| Source File: AbstractServer.java From dubbox-hystrix with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
Collection<Channel> channels = getChannels();
for (Channel channel : channels) {
if (channel.isConnected()) {
channel.send(message, sent);
}
}
}
Example 9
| Source File: AbstractClient.java From dubbox with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
if (send_reconnect && !isConnected()){
connect();
}
Channel channel = getChannel();
//TODO getChannel返回的状态是否包含null需要改进
if (channel == null || ! channel.isConnected()) {
throw new RemotingException(this, "message can not send, because channel is closed . url:" + getUrl());
}
channel.send(message, sent);
}
Example 10
| Source File: AbstractClient.java From dubbo3 with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
if (send_reconnect && !isConnected()) {
connect();
}
Channel channel = getChannel();
//TODO getChannel返回的状态是否包含null需要改进
if (channel == null || !channel.isConnected()) {
throw new RemotingException(this, "message can not send, because channel is closed . url:" + getUrl());
}
channel.send(message, sent);
}
Example 11
| Source File: AbstractServer.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
@Override
public void send(Object message, boolean sent) throws RemotingException {
Collection<Channel> channels = getChannels();
for (Channel channel : channels) {
if (channel.isConnected()) {
channel.send(message, sent);
}
}
}
Example 12
| Source File: AbstractClient.java From dubbo-2.6.5 with Apache License 2.0 | 5 votes |
|
@Override
public void send(Object message, boolean sent) throws RemotingException {
if (send_reconnect && !isConnected()) {
connect();
}
Channel channel = getChannel();
//TODO Can the value returned by getChannel() be null? need improvement.
if (channel == null || !channel.isConnected()) {
throw new RemotingException(this, "message can not send, because channel is closed . url:" + getUrl());
}
// =》com.alibaba.dubbo.remoting.transport.netty.NettyChannel.send()
channel.send(message, sent);
}
Example 13
| Source File: AbstractServer.java From dubbo3 with Apache License 2.0 | 5 votes |
|
public void send(Object message, boolean sent) throws RemotingException {
Collection<Channel> channels = getChannels();
for (Channel channel : channels) {
if (channel.isConnected()) {
channel.send(message, sent);
}
}
}
Example 14
| 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 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: DeprecatedExchangeCodec.java From dubbox with Apache License 2.0 | 4 votes |
|
protected void encodeResponse(Channel channel, OutputStream os, Response res) throws IOException {
try {
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] = serialization.getContentTypeId();
if (res.isHeartbeat()) header[2] |= FLAG_EVENT;
// set response status.
byte status = res.getStatus();
header[3] = status;
// set request id.
Bytes.long2bytes(res.getId(), header, 4);
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream(1024);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
// encode response data or error message.
if (status == Response.OK) {
if (res.isHeartbeat()) {
encodeHeartbeatData(channel, out, res.getResult());
} else {
encodeResponseData(channel, out, res.getResult());
}
} else out.writeUTF(res.getErrorMessage());
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.
} catch (Throwable t) {
// 发送失败信息给Consumer，否则Consumer只能等超时了
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);
}
}
// 重新抛出收到的异常
if (t instanceof IOException) {
throw (IOException) t;
} else if (t instanceof RuntimeException) {
throw (RuntimeException) t;
} else if (t instanceof Error) {
throw (Error) t;
} else {
throw new RuntimeException(t.getMessage(), t);
}
}
}
Example 17
| Source File: ExchangeCodec.java From dubbox with Apache License 2.0 | 4 votes |
|
protected void encodeResponse(Channel channel, ChannelBuffer buffer, Response res) throws IOException {
try {
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] = serialization.getContentTypeId();
if (res.isHeartbeat()) header[2] |= FLAG_EVENT;
// set response status.
byte status = res.getStatus();
header[3] = status;
// set request id.
Bytes.long2bytes(res.getId(), header, 4);
int savedWriteIndex = buffer.writerIndex();
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH);
ChannelBufferOutputStream bos = new ChannelBufferOutputStream(buffer);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
try {
// encode response data or error message.
if (status == Response.OK) {
if (res.isHeartbeat()) {
encodeHeartbeatData(channel, out, res.getResult());
} else {
encodeResponseData(channel, out, res.getResult());
}
}
else out.writeUTF(res.getErrorMessage());
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);
} catch (Throwable t) {
// 发送失败信息给Consumer，否则Consumer只能等超时了
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);
}
}
// 重新抛出收到的异常
if (t instanceof IOException) {
throw (IOException) t;
} else if (t instanceof RuntimeException) {
throw (RuntimeException) t;
} else if (t instanceof Error) {
throw (Error) t;
} else {
throw new RuntimeException(t.getMessage(), t);
}
}
}
Example 18
| Source File: ExchangeCodec.java From dubbo3 with Apache License 2.0 | 4 votes |
|
protected void encodeResponse(Channel channel, ChannelBuffer buffer, Response res) throws IOException {
try {
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] = serialization.getContentTypeId();
if (res.isHeartbeat()) header[2] |= FLAG_EVENT;
// set response status.
byte status = res.getStatus();
header[3] = status;
// set request id.
Bytes.long2bytes(res.getId(), header, 4);
int savedWriteIndex = buffer.writerIndex();
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH);
ChannelBufferOutputStream bos = new ChannelBufferOutputStream(buffer);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
// encode response data or error message.
if (status == Response.OK) {
if (res.isHeartbeat()) {
encodeHeartbeatData(channel, out, res.getResult());
} else {
encodeResponseData(channel, out, res.getResult());
}
}
else out.writeUTF(res.getErrorMessage());
out.flushBuffer();
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);
} catch (Throwable t) {
// 发送失败信息给Consumer，否则Consumer只能等超时了
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);
}
}
// 重新抛出收到的异常
if (t instanceof IOException) {
throw (IOException) t;
} else if (t instanceof RuntimeException) {
throw (RuntimeException) t;
} else {
throw (Error) t;
}
}
}
Example 19
| Source File: ExchangeCodec.java From dubbox with Apache License 2.0 | 4 votes |
|
protected void encodeResponse(Channel channel, ChannelBuffer buffer, Response res) throws IOException {
try {
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] = serialization.getContentTypeId();
if (res.isHeartbeat()) header[2] |= FLAG_EVENT;
// set response status.
byte status = res.getStatus();
header[3] = status;
// set request id.
Bytes.long2bytes(res.getId(), header, 4);
int savedWriteIndex = buffer.writerIndex();
buffer.writerIndex(savedWriteIndex + HEADER_LENGTH);
ChannelBufferOutputStream bos = new ChannelBufferOutputStream(buffer);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
try {
// encode response data or error message.
if (status == Response.OK) {
if (res.isHeartbeat()) {
encodeHeartbeatData(channel, out, res.getResult());
} else {
encodeResponseData(channel, out, res.getResult());
}
}
else out.writeUTF(res.getErrorMessage());
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);
} catch (Throwable t) {
// 发送失败信息给Consumer，否则Consumer只能等超时了
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);
}
}
// 重新抛出收到的异常
if (t instanceof IOException) {
throw (IOException) t;
} else if (t instanceof RuntimeException) {
throw (RuntimeException) t;
} else if (t instanceof Error) {
throw (Error) t;
} else {
throw new RuntimeException(t.getMessage(), t);
}
}
}
Example 20
| Source File: DeprecatedExchangeCodec.java From dubbox with Apache License 2.0 | 4 votes |
|
protected void encodeResponse(Channel channel, OutputStream os, Response res) throws IOException {
try {
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] = serialization.getContentTypeId();
if (res.isHeartbeat()) header[2] |= FLAG_EVENT;
// set response status.
byte status = res.getStatus();
header[3] = status;
// set request id.
Bytes.long2bytes(res.getId(), header, 4);
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream(1024);
ObjectOutput out = serialization.serialize(channel.getUrl(), bos);
// encode response data or error message.
if (status == Response.OK) {
if (res.isHeartbeat()) {
encodeHeartbeatData(channel, out, res.getResult());
} else {
encodeResponseData(channel, out, res.getResult());
}
} else out.writeUTF(res.getErrorMessage());
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.
} catch (Throwable t) {
// 发送失败信息给Consumer，否则Consumer只能等超时了
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);
}
}
// 重新抛出收到的异常
if (t instanceof IOException) {
throw (IOException) t;
} else if (t instanceof RuntimeException) {
throw (RuntimeException) t;
} else if (t instanceof Error) {
throw (Error) t;
} else {
throw new RuntimeException(t.getMessage(), t);
}
}
}
