Examples with RpcException org.apache.dubbo.rpc.RpcException used on opensource projects

Example 81 with RpcException

use of org.apache.dubbo.rpc.RpcException in project dubbo by alibaba.

the class ThriftProtocol method doReferFrameAndCompact.

private <T> T doReferFrameAndCompact(Class<T> type, URL url) throws RpcException {
    try {
        T thriftClient = null;
        String typeName = type.getName();
        if (typeName.endsWith(THRIFT_IFACE)) {
            String clientClsName = typeName.substring(0, typeName.indexOf(THRIFT_IFACE)) + THRIFT_CLIENT;
            Class<?> clazz = Class.forName(clientClsName);
            Constructor constructor = clazz.getConstructor(TProtocol.class);
            try {
                TSocket tSocket = new TSocket(url.getHost(), url.getPort());
                TTransport transport = new TFramedTransport(tSocket);
                TProtocol tprotocol = new TCompactProtocol(transport);
                TMultiplexedProtocol protocol = new TMultiplexedProtocol(tprotocol, typeName);
                thriftClient = (T) constructor.newInstance(protocol);
                transport.open();
                logger.info("nativethrift client opened for service(" + url + ")");
            } catch (Exception e) {
                logger.error(e.getMessage(), e);
                throw new RpcException("Fail to create remote client:" + e.getMessage(), e);
            }
        }
        return thriftClient;
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        throw new RpcException("Fail to create remote client for service(" + url + "): " + e.getMessage(), e);
    }
}

Example 82 with RpcException

use of org.apache.dubbo.rpc.RpcException in project dubbo by alibaba.

the class ForkingClusterInvoker method doInvoke.

@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
public Result doInvoke(final Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
    try {
        checkInvokers(invokers, invocation);
        final List<Invoker<T>> selected;
        final int forks = getUrl().getParameter(FORKS_KEY, DEFAULT_FORKS);
        final int timeout = getUrl().getParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT);
        if (forks <= 0 || forks >= invokers.size()) {
            selected = invokers;
        } else {
            selected = new ArrayList<>(forks);
            while (selected.size() < forks) {
                Invoker<T> invoker = select(loadbalance, invocation, invokers, selected);
                if (!selected.contains(invoker)) {
                    // Avoid add the same invoker several times.
                    selected.add(invoker);
                }
            }
        }
        RpcContext.getContext().setInvokers((List) selected);
        final AtomicInteger count = new AtomicInteger();
        final BlockingQueue<Object> ref = new LinkedBlockingQueue<>();
        for (final Invoker<T> invoker : selected) {
            executor.execute(() -> {
                try {
                    Result result = invoker.invoke(invocation);
                    ref.offer(result);
                } catch (Throwable e) {
                    int value = count.incrementAndGet();
                    if (value >= selected.size()) {
                        ref.offer(e);
                    }
                }
            });
        }
        try {
            Object ret = ref.poll(timeout, TimeUnit.MILLISECONDS);
            if (ret instanceof Throwable) {
                Throwable e = (Throwable) ret;
                throw new RpcException(e instanceof RpcException ? ((RpcException) e).getCode() : 0, "Failed to forking invoke provider " + selected + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e.getCause() != null ? e.getCause() : e);
            }
            return (Result) ret;
        } catch (InterruptedException e) {
            throw new RpcException("Failed to forking invoke provider " + selected + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e);
        }
    } finally {
        // clear attachments which is binding to current thread.
        RpcContext.getContext().clearAttachments();
    }
}

Example 83 with RpcException

use of org.apache.dubbo.rpc.RpcException in project dubbo by alibaba.

the class FailfastClusterInvoker method doInvoke.

@Override
public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
    checkInvokers(invokers, invocation);
    Invoker<T> invoker = select(loadbalance, invocation, invokers, null);
    try {
        return invoker.invoke(invocation);
    } catch (Throwable e) {
        if (e instanceof RpcException && ((RpcException) e).isBiz()) {
            // biz exception.
            throw (RpcException) e;
        }
        throw new RpcException(e instanceof RpcException ? ((RpcException) e).getCode() : 0, "Failfast invoke providers " + invoker.getUrl() + " " + loadbalance.getClass().getSimpleName() + " select from all providers " + invokers + " for service " + getInterface().getName() + " method " + invocation.getMethodName() + " on consumer " + NetUtils.getLocalHost() + " use dubbo version " + Version.getVersion() + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e.getCause() != null ? e.getCause() : e);
    }
}

Example 84 with RpcException

use of org.apache.dubbo.rpc.RpcException in project dubbo by alibaba.

the class BroadcastCluster2Invoker method getCallables.

private List<Callable<BroadcastResult>> getCallables(List<Invoker<T>> invokers, Invocation invocation) {
    List<Callable<BroadcastResult>> tasks = invokers.stream().map(it -> (Callable<BroadcastResult>) () -> {
        BroadcastResult br = new BroadcastResult(it.getUrl().getIp(), it.getUrl().getPort());
        Result result = null;
        try {
            result = it.invoke(invocation);
            if (null != result && result.hasException()) {
                Throwable resultException = result.getException();
                if (null != resultException) {
                    RpcException exception = getRpcException(result.getException());
                    br.setExceptionMsg(exception.getMessage());
                    br.setException(exception);
                    logger.warn(exception.getMessage(), exception);
                }
            } else if (null != result) {
                br.setData(result.getValue());
                br.setResult(result);
            }
        } catch (Throwable ex) {
            RpcException exception = getRpcException(result.getException());
            br.setExceptionMsg(exception.getMessage());
            br.setException(exception);
            logger.warn(exception.getMessage(), exception);
        }
        return br;
    }).collect(Collectors.toList());
    return tasks;
}

Example 85 with RpcException

use of org.apache.dubbo.rpc.RpcException in project dubbo by alibaba.

the class BroadcastClusterInvoker method doInvoke.

@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
public Result doInvoke(final Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
    checkInvokers(invokers, invocation);
    RpcContext.getContext().setInvokers((List) invokers);
    RpcException exception = null;
    Result result = null;
    URL url = getUrl();
    // The value range of broadcast.fail.threshold must be 0～100.
    // 100 means that an exception will be thrown last, and 0 means that as long as an exception occurs, it will be thrown.
    // see https://github.com/apache/dubbo/pull/7174
    int broadcastFailPercent = url.getParameter(BROADCAST_FAIL_PERCENT_KEY, MAX_BROADCAST_FAIL_PERCENT);
    if (broadcastFailPercent < MIN_BROADCAST_FAIL_PERCENT || broadcastFailPercent > MAX_BROADCAST_FAIL_PERCENT) {
        logger.info(String.format("The value corresponding to the broadcast.fail.percent parameter must be between 0 and 100. " + "The current setting is %s, which is reset to 100.", broadcastFailPercent));
        broadcastFailPercent = MAX_BROADCAST_FAIL_PERCENT;
    }
    int failThresholdIndex = invokers.size() * broadcastFailPercent / MAX_BROADCAST_FAIL_PERCENT;
    int failIndex = 0;
    for (Invoker<T> invoker : invokers) {
        try {
            result = invoker.invoke(invocation);
            if (null != result && result.hasException()) {
                Throwable resultException = result.getException();
                if (null != resultException) {
                    exception = getRpcException(result.getException());
                    logger.warn(exception.getMessage(), exception);
                    if (failIndex == failThresholdIndex) {
                        break;
                    } else {
                        failIndex++;
                    }
                }
            }
        } catch (Throwable e) {
            exception = getRpcException(e);
            logger.warn(exception.getMessage(), exception);
            if (failIndex == failThresholdIndex) {
                break;
            } else {
                failIndex++;
            }
        }
    }
    if (exception != null) {
        if (failIndex == failThresholdIndex) {
            logger.debug(String.format("The number of BroadcastCluster call failures has reached the threshold %s", failThresholdIndex));
        } else {
            logger.debug(String.format("The number of BroadcastCluster call failures has not reached the threshold %s, fail size is %s", failThresholdIndex, failIndex));
        }
        throw exception;
    }
    return result;
}