Examples with RemotingException org.apache.dubbo.remoting.RemotingException used on opensource projects

Example 26 with RemotingException

use of org.apache.dubbo.remoting.RemotingException in project dubbo by alibaba.

the class GrizzlyHandler method handleRead.

@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
    Connection<?> connection = ctx.getConnection();
    GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
    try {
        handler.received(channel, ctx.getMessage());
    } catch (RemotingException e) {
        throw new IOException(StringUtils.toString(e));
    } finally {
        GrizzlyChannel.removeChannelIfDisconnected(connection);
    }
    return ctx.getInvokeAction();
}

Example 27 with RemotingException

use of org.apache.dubbo.remoting.RemotingException in project dubbo by alibaba.

the class DeprecatedTelnetCodec method decode.

@SuppressWarnings("unchecked")
protected Object decode(Channel channel, InputStream is, int readable, byte[] message) throws IOException {
    if (isClientSide(channel)) {
        return toString(message, getCharset(channel));
    }
    checkPayload(channel, readable);
    if (message == null || message.length == 0) {
        return NEED_MORE_INPUT;
    }
    if (message[message.length - 1] == '\b') {
        // Windows backspace echo
        try {
            // double byte char
            boolean doublechar = message.length >= 3 && message[message.length - 3] < 0;
            channel.send(new String(doublechar ? new byte[] { 32, 32, 8, 8 } : new byte[] { 32, 8 }, getCharset(channel).name()));
        } catch (RemotingException e) {
            throw new IOException(StringUtils.toString(e));
        }
        return NEED_MORE_INPUT;
    }
    for (Object command : EXIT) {
        if (isEquals(message, (byte[]) command)) {
            if (logger.isInfoEnabled()) {
                logger.info(new Exception("Close channel " + channel + " on exit command: " + Arrays.toString((byte[]) command)));
            }
            channel.close();
            return null;
        }
    }
    boolean up = endsWith(message, UP);
    boolean down = endsWith(message, DOWN);
    if (up || down) {
        LinkedList<String> history = (LinkedList<String>) channel.getAttribute(HISTORY_LIST_KEY);
        if (history == null || history.size() == 0) {
            return NEED_MORE_INPUT;
        }
        Integer index = (Integer) channel.getAttribute(HISTORY_INDEX_KEY);
        Integer old = index;
        if (index == null) {
            index = history.size() - 1;
        } else {
            if (up) {
                index = index - 1;
                if (index < 0) {
                    index = history.size() - 1;
                }
            } else {
                index = index + 1;
                if (index > history.size() - 1) {
                    index = 0;
                }
            }
        }
        if (old == null || !old.equals(index)) {
            channel.setAttribute(HISTORY_INDEX_KEY, index);
            String value = history.get(index);
            if (old != null && old >= 0 && old < history.size()) {
                String ov = history.get(old);
                StringBuilder buf = new StringBuilder();
                for (int i = 0; i < ov.length(); i++) {
                    buf.append("\b");
                }
                for (int i = 0; i < ov.length(); i++) {
                    buf.append(" ");
                }
                for (int i = 0; i < ov.length(); i++) {
                    buf.append("\b");
                }
                value = buf.toString() + value;
            }
            try {
                channel.send(value);
            } catch (RemotingException e) {
                throw new IOException(StringUtils.toString(e));
            }
        }
        return NEED_MORE_INPUT;
    }
    for (Object command : EXIT) {
        if (isEquals(message, (byte[]) command)) {
            if (logger.isInfoEnabled()) {
                logger.info(new Exception("Close channel " + channel + " on exit command " + command));
            }
            channel.close();
            return null;
        }
    }
    byte[] enter = null;
    for (Object command : ENTER) {
        if (endsWith(message, (byte[]) command)) {
            enter = (byte[]) command;
            break;
        }
    }
    if (enter == null) {
        return NEED_MORE_INPUT;
    }
    LinkedList<String> history = (LinkedList<String>) channel.getAttribute(HISTORY_LIST_KEY);
    Integer index = (Integer) channel.getAttribute(HISTORY_INDEX_KEY);
    channel.removeAttribute(HISTORY_INDEX_KEY);
    if (history != null && history.size() > 0 && index != null && index >= 0 && index < history.size()) {
        String value = history.get(index);
        if (value != null) {
            byte[] b1 = value.getBytes();
            if (message != null && message.length > 0) {
                byte[] b2 = new byte[b1.length + message.length];
                System.arraycopy(b1, 0, b2, 0, b1.length);
                System.arraycopy(message, 0, b2, b1.length, message.length);
                message = b2;
            } else {
                message = b1;
            }
        }
    }
    String result = toString(message, getCharset(channel));
    if (result != null && result.trim().length() > 0) {
        if (history == null) {
            history = new LinkedList<String>();
            channel.setAttribute(HISTORY_LIST_KEY, history);
        }
        if (history.size() == 0) {
            history.addLast(result);
        } else if (!result.equals(history.getLast())) {
            history.remove(result);
            history.addLast(result);
            if (history.size() > 10) {
                history.removeFirst();
            }
        }
    }
    return result;
}

Example 28 with RemotingException

use of org.apache.dubbo.remoting.RemotingException in project dubbo by alibaba.

the class DubboInvoker method doInvoke.

@Override
protected Result doInvoke(final Invocation invocation) throws Throwable {
    RpcInvocation inv = (RpcInvocation) invocation;
    final String methodName = RpcUtils.getMethodName(invocation);
    inv.setAttachment(PATH_KEY, getUrl().getPath());
    inv.setAttachment(VERSION_KEY, version);
    ExchangeClient currentClient;
    if (clients.length == 1) {
        currentClient = clients[0];
    } else {
        currentClient = clients[index.getAndIncrement() % clients.length];
    }
    try {
        boolean isOneway = RpcUtils.isOneway(getUrl(), invocation);
        int timeout = calculateTimeout(invocation, methodName);
        invocation.put(TIMEOUT_KEY, timeout);
        if (isOneway) {
            boolean isSent = getUrl().getMethodParameter(methodName, Constants.SENT_KEY, false);
            currentClient.send(inv, isSent);
            return AsyncRpcResult.newDefaultAsyncResult(invocation);
        } else {
            ExecutorService executor = getCallbackExecutor(getUrl(), inv);
            CompletableFuture<AppResponse> appResponseFuture = currentClient.request(inv, timeout, executor).thenApply(obj -> (AppResponse) obj);
            // save for 2.6.x compatibility, for example, TraceFilter in Zipkin uses com.alibaba.xxx.FutureAdapter
            FutureContext.getContext().setCompatibleFuture(appResponseFuture);
            AsyncRpcResult result = new AsyncRpcResult(appResponseFuture, inv);
            result.setExecutor(executor);
            return result;
        }
    } catch (TimeoutException e) {
        throw new RpcException(RpcException.TIMEOUT_EXCEPTION, "Invoke remote method timeout. method: " + invocation.getMethodName() + ", provider: " + getUrl() + ", cause: " + e.getMessage(), e);
    } catch (RemotingException e) {
        throw new RpcException(RpcException.NETWORK_EXCEPTION, "Failed to invoke remote method: " + invocation.getMethodName() + ", provider: " + getUrl() + ", cause: " + e.getMessage(), e);
    }
}

Example 29 with RemotingException

use of org.apache.dubbo.remoting.RemotingException in project dubbo by alibaba.

the class HeaderExchangeChannel method send.

@Override
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(Version.getProtocolVersion());
        request.setTwoWay(false);
        request.setData(message);
        channel.send(request, sent);
    }
}

Example 30 with RemotingException

use of org.apache.dubbo.remoting.RemotingException in project dubbo by alibaba.

the class HeaderExchangeHandler method handleRequest.

void handleRequest(final 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);
        channel.send(res);
        return;
    }
    // find handler by message class.
    Object msg = req.getData();
    try {
        CompletionStage<Object> future = handler.reply(channel, msg);
        future.whenComplete((appResult, t) -> {
            try {
                if (t == null) {
                    res.setStatus(Response.OK);
                    res.setResult(appResult);
                } else {
                    res.setStatus(Response.SERVICE_ERROR);
                    res.setErrorMessage(StringUtils.toString(t));
                }
                channel.send(res);
            } catch (RemotingException e) {
                logger.warn("Send result to consumer failed, channel is " + channel + ", msg is " + e);
            }
        });
    } catch (Throwable e) {
        res.setStatus(Response.SERVICE_ERROR);
        res.setErrorMessage(StringUtils.toString(e));
        channel.send(res);
    }
}