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

Example 51 with RpcException

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

the class GenericImplFilter method onResponse.

@Override
public void onResponse(Result appResponse, Invoker<?> invoker, Invocation invocation) {
    String generic = invoker.getUrl().getParameter(GENERIC_KEY);
    String methodName = invocation.getMethodName();
    Class<?>[] parameterTypes = invocation.getParameterTypes();
    Object genericImplMarker = invocation.get(GENERIC_IMPL_MARKER);
    if (genericImplMarker != null && (boolean) invocation.get(GENERIC_IMPL_MARKER)) {
        if (!appResponse.hasException()) {
            Object value = appResponse.getValue();
            try {
                Class<?> invokerInterface = invoker.getInterface();
                if (!$INVOKE.equals(methodName) && !$INVOKE_ASYNC.equals(methodName) && invokerInterface.isAssignableFrom(GenericService.class)) {
                    try {
                        // find the real interface from url
                        String realInterface = invoker.getUrl().getParameter(Constants.INTERFACE);
                        invokerInterface = ReflectUtils.forName(realInterface);
                    } catch (Throwable e) {
                    // ignore
                    }
                }
                Method method = invokerInterface.getMethod(methodName, parameterTypes);
                if (ProtocolUtils.isBeanGenericSerialization(generic)) {
                    if (value == null) {
                        appResponse.setValue(value);
                    } else if (value instanceof JavaBeanDescriptor) {
                        appResponse.setValue(JavaBeanSerializeUtil.deserialize((JavaBeanDescriptor) value));
                    } else {
                        throw new RpcException("The type of result value is " + value.getClass().getName() + " other than " + JavaBeanDescriptor.class.getName() + ", and the result is " + value);
                    }
                } else {
                    Type[] types = ReflectUtils.getReturnTypes(method);
                    appResponse.setValue(PojoUtils.realize(value, (Class<?>) types[0], types[1]));
                }
            } catch (NoSuchMethodException e) {
                throw new RpcException(e.getMessage(), e);
            }
        } else if (appResponse.getException() instanceof com.alibaba.dubbo.rpc.service.GenericException) {
            com.alibaba.dubbo.rpc.service.GenericException exception = (com.alibaba.dubbo.rpc.service.GenericException) appResponse.getException();
            try {
                String className = exception.getExceptionClass();
                Class<?> clazz = ReflectUtils.forName(className);
                Throwable targetException = null;
                Throwable lastException = null;
                try {
                    targetException = (Throwable) clazz.newInstance();
                } catch (Throwable e) {
                    lastException = e;
                    for (Constructor<?> constructor : clazz.getConstructors()) {
                        try {
                            targetException = (Throwable) constructor.newInstance(new Object[constructor.getParameterTypes().length]);
                            break;
                        } catch (Throwable e1) {
                            lastException = e1;
                        }
                    }
                }
                if (targetException != null) {
                    try {
                        Field field = Throwable.class.getDeclaredField("detailMessage");
                        ReflectUtils.makeAccessible(field);
                        field.set(targetException, exception.getExceptionMessage());
                    } catch (Throwable e) {
                        logger.warn(e.getMessage(), e);
                    }
                    appResponse.setException(targetException);
                } else if (lastException != null) {
                    throw lastException;
                }
            } catch (Throwable e) {
                throw new RpcException("Can not deserialize exception " + exception.getExceptionClass() + ", message: " + exception.getExceptionMessage(), e);
            }
        }
    }
}

Example 52 with RpcException

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

the class ActiveLimitFilter method invoke.

@Override
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
    URL url = invoker.getUrl();
    String methodName = invocation.getMethodName();
    int max = invoker.getUrl().getMethodParameter(methodName, ACTIVES_KEY, 0);
    final RpcStatus rpcStatus = RpcStatus.getStatus(invoker.getUrl(), invocation.getMethodName());
    if (!RpcStatus.beginCount(url, methodName, max)) {
        long timeout = invoker.getUrl().getMethodParameter(invocation.getMethodName(), TIMEOUT_KEY, 0);
        long start = System.currentTimeMillis();
        long remain = timeout;
        synchronized (rpcStatus) {
            while (!RpcStatus.beginCount(url, methodName, max)) {
                try {
                    rpcStatus.wait(remain);
                } catch (InterruptedException e) {
                // ignore
                }
                long elapsed = System.currentTimeMillis() - start;
                remain = timeout - elapsed;
                if (remain <= 0) {
                    throw new RpcException(RpcException.LIMIT_EXCEEDED_EXCEPTION, "Waiting concurrent invoke timeout in client-side for service:  " + invoker.getInterface().getName() + ", method: " + invocation.getMethodName() + ", elapsed: " + elapsed + ", timeout: " + timeout + ". concurrent invokes: " + rpcStatus.getActive() + ". max concurrent invoke limit: " + max);
                }
            }
        }
    }
    invocation.put(ACTIVELIMIT_FILTER_START_TIME, System.currentTimeMillis());
    return invoker.invoke(invocation);
}

Example 53 with RpcException

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

the class ActiveLimitFilter method onError.

@Override
public void onError(Throwable t, Invoker<?> invoker, Invocation invocation) {
    String methodName = invocation.getMethodName();
    URL url = invoker.getUrl();
    int max = invoker.getUrl().getMethodParameter(methodName, ACTIVES_KEY, 0);
    if (t instanceof RpcException) {
        RpcException rpcException = (RpcException) t;
        if (rpcException.isLimitExceed()) {
            return;
        }
    }
    RpcStatus.endCount(url, methodName, getElapsed(invocation), false);
    notifyFinish(RpcStatus.getStatus(url, methodName), max);
}

Example 54 with RpcException

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

the class ThriftCodecTest method testDecodeExceptionResponse.

@Test
public void testDecodeExceptionResponse() throws Exception {
    int port = NetUtils.getAvailablePort();
    URL url = URL.valueOf(ThriftProtocol.NAME + "://127.0.0.1:" + port + "/" + Demo.class.getName());
    Channel channel = new MockedChannel(url);
    RandomAccessByteArrayOutputStream bos = new RandomAccessByteArrayOutputStream(128);
    Request request = createRequest();
    DefaultFuture future = DefaultFuture.newFuture(channel, request, 10, null);
    TMessage message = new TMessage("echoString", TMessageType.EXCEPTION, ThriftCodec.getSeqId());
    TTransport transport = new TIOStreamTransport(bos);
    TBinaryProtocol protocol = new TBinaryProtocol(transport);
    TApplicationException exception = new TApplicationException();
    int messageLength, headerLength;
    // prepare
    protocol.writeI16(ThriftCodec.MAGIC);
    protocol.writeI32(Integer.MAX_VALUE);
    protocol.writeI16(Short.MAX_VALUE);
    protocol.writeByte(ThriftCodec.VERSION);
    protocol.writeString(Demo.class.getName());
    // path
    protocol.writeString(Demo.class.getName());
    protocol.writeI64(request.getId());
    protocol.getTransport().flush();
    headerLength = bos.size();
    protocol.writeMessageBegin(message);
    exception.write(protocol);
    protocol.writeMessageEnd();
    protocol.getTransport().flush();
    int oldIndex = messageLength = bos.size();
    try {
        bos.setWriteIndex(ThriftCodec.MESSAGE_LENGTH_INDEX);
        protocol.writeI32(messageLength);
        bos.setWriteIndex(ThriftCodec.MESSAGE_HEADER_LENGTH_INDEX);
        protocol.writeI16((short) (0xffff & headerLength));
    } finally {
        bos.setWriteIndex(oldIndex);
    }
    // prepare
    ChannelBuffer bis = ChannelBuffers.wrappedBuffer(encodeFrame(bos.toByteArray()));
    Object obj = codec.decode((Channel) null, bis);
    Assertions.assertNotNull(obj);
    Assertions.assertTrue(obj instanceof Response);
    Response response = (Response) obj;
    Assertions.assertTrue(response.getResult() instanceof AppResponse);
    AppResponse result = (AppResponse) response.getResult();
    Assertions.assertTrue(result.hasException());
    Assertions.assertTrue(result.getException() instanceof RpcException);
}

Example 55 with RpcException

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

the class XmlRpcProtocol method doExport.

@Override
protected <T> Runnable doExport(T impl, Class<T> type, URL url) throws RpcException {
    final URL httpUrl = url.setProtocol("http");
    String addr = httpUrl.getIp() + ":" + httpUrl.getPort();
    ProtocolServer protocolServer = serverMap.get(addr);
    if (protocolServer == null) {
        RemotingServer remotingServer = httpBinder.bind(httpUrl, new InternalHandler(httpUrl.getParameter("cors", false)));
        serverMap.put(addr, new ProxyProtocolServer(remotingServer));
    }
    final String path = httpUrl.getAbsolutePath();
    XmlRpcServletServer xmlRpcServer = new XmlRpcServletServer();
    PropertyHandlerMapping propertyHandlerMapping = new PropertyHandlerMapping();
    try {
        propertyHandlerMapping.setRequestProcessorFactoryFactory(new RequestProcessorFactoryFactory() {

            @Override
            public RequestProcessorFactory getRequestProcessorFactory(Class pClass) throws XmlRpcException {
                return new RequestProcessorFactory() {

                    @Override
                    public Object getRequestProcessor(XmlRpcRequest pRequest) throws XmlRpcException {
                        return impl;
                    }
                };
            }
        });
        propertyHandlerMapping.addHandler(XmlRpcProxyFactoryBean.replace(type.getName()), type);
    } catch (Exception e) {
        throw new RpcException(e);
    }
    xmlRpcServer.setHandlerMapping(propertyHandlerMapping);
    XmlRpcServerConfigImpl xmlRpcServerConfig = (XmlRpcServerConfigImpl) xmlRpcServer.getConfig();
    xmlRpcServerConfig.setEnabledForExceptions(true);
    xmlRpcServerConfig.setContentLengthOptional(false);
    skeletonMap.put(path, xmlRpcServer);
    return new Runnable() {

        @Override
        public void run() {
            skeletonMap.remove(path);
        }
    };
}