Package com.alibaba.dubbo.rpc

Examples of com.alibaba.dubbo.rpc.Result

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    }

    @Override
    protected Result doInvoke(Invocation invocation) throws Throwable {
        try {
            Result result = invoker.invoke(invocation);
            Throwable e = result.getException();
            if (e != null) {
                String name = e.getClass().getName();
                if (name.startsWith(HESSIAN_EXCEPTION_PREFIX)) {
                    RpcException re = new RpcException("Failed to invoke remote service: " + getInterface() + ", method: "
                            + invocation.getMethodName() + ", cause: " + e.getMessage(), e);
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        this.reconnect = invoker.getUrl().getParameter(Constants.RECONNECT_KEY, true);
    }

    @Override
    protected Result doInvoke(Invocation invocation) throws RpcException {
        Result result = null;
        try {
            result = invoker.invoke(invocation);
           
            // 对Rmi的Connection问题进行重试
            Throwable e = result.getException();
            if (e != null && isConnectFailure(e) && reconnect) {
                invoker = rmiProxyFactory.getInvoker(registry.lookup(invoker.getUrl().getPath()), invoker.getInterface(), invoker.getUrl());
                result = invoker.invoke(invocation);
            }
        } catch (RpcException e) {
            throw setRpcExceptionCode(e.getCause(), e);
        } catch (Throwable e) {
            throw setRpcExceptionCode(e, new RpcException(e.getMessage(), e));
        }

        Throwable e = result.getException();
        if (e != null && e instanceof RemoteException) {
            throw setRpcExceptionCode(e, new RpcException("Failed to invoke remote service: " + getInterface() + ", method: "
                    + invocation.getMethodName() + ", url: " + invoker.getUrl() + ", cause: " + e.getMessage(), e));
        }
        return result;
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                                    .append(" and your message type is ")
                                    .append(args[i].getClass()).toString());
                        }
                    }
                }
                Result result = invoker.invoke(new RpcInvocation(method, args, inv.getAttachments()));
                if (result.hasException()
                        && ! (result.getException() instanceof GenericException)) {
                    return new RpcResult(new GenericException(result.getException()));
                }
                if (ProtocolUtils.isJavaGenericSerialization(generic)) {
                    try {
                        UnsafeByteArrayOutputStream os = new UnsafeByteArrayOutputStream(512);
                        ExtensionLoader.getExtensionLoader(Serialization.class)
                            .getExtension(Constants.GENERIC_SERIALIZATION_JAVA).serialize(null, os).writeObject(result.getValue());
                        return new RpcResult(os.toByteArray());
                    } catch (IOException e) {
                        throw new RpcException("Serialize result failed.", e);
                    }
                } else {
                    return new RpcResult(PojoUtils.generalize(result.getValue()));
                }
            } catch (NoSuchMethodException e) {
                throw new RpcException(e.getMessage(), e);
            } catch (ClassNotFoundException e) {
                throw new RpcException(e.getMessage(), e);
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            Object[] args = PojoUtils.generalize(arguments);
           
            invocation2.setMethodName(Constants.$INVOKE);
            invocation2.setParameterTypes(GENERIC_PARAMETER_TYPES);
            invocation2.setArguments(new Object[] {methodName, types, args});
            Result result = invoker.invoke(invocation2);
           
            if (! result.hasException()) {
                Object value = result.getValue();
                try {
                    Method method = invoker.getInterface().getMethod(methodName, parameterTypes);
                    return new RpcResult(PojoUtils.realize(value, method.getReturnType(), method.getGenericReturnType()));
                } catch (NoSuchMethodException e) {
                    throw new RpcException(e.getMessage(), e);
                }
            } else if (result.getException() instanceof GenericException) {
                GenericException exception = (GenericException) result.getException();
                try {
                    String className = exception.getExceptionClass();
                    Class<?> clazz = ReflectUtils.forName(className);
                    Throwable targetException = null;
                    Throwable lastException = null;
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        this.logger = logger;
    }
   
    public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
        try {
            Result result = invoker.invoke(invocation);
            if (result.hasException() && GenericService.class != invoker.getInterface()) {
                try {
                    Throwable exception = result.getException();
                    // 如果是checked异常，直接抛出
                    if (! (exception instanceof RuntimeException)) {
                        return result;
                    }
                    // 在方法签名上有声明，直接抛出
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                Class<?>[] params = method.getParameterTypes();
                if (args == null) {
                    args = new Object[params.length];
                }
                args = PojoUtils.realize(args, params, method.getGenericParameterTypes());
                Result result = invoker.invoke(new RpcInvocation(method, args, inv.getAttachments()));
                if (result.hasException()
                        && ! (result.getException() instanceof GenericException)) {
                    return new RpcResult(new GenericException(result.getException()));
                }
                return new RpcResult(PojoUtils.generalize(result.getResult()));
            } catch (NoSuchMethodException e) {
                throw new RpcException(e.getMessage(), e);
            } catch (ClassNotFoundException e) {
                throw new RpcException(e.getMessage(), e);
            }
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            Object[] args = PojoUtils.generalize(arguments);
           
            invocation2.setMethodName(Constants.$INVOKE);
            invocation2.setParameterTypes(GENERIC_PARAMETER_TYPES);
            invocation2.setArguments(new Object[] {methodName, types, args});
            Result result = invoker.invoke(invocation2);
           
            if (! result.hasException()) {
                Object value = result.getResult();
                try {
                    Method method = invoker.getInterface().getMethod(methodName, parameterTypes);
                    return new RpcResult(PojoUtils.realize(value, method.getReturnType(), method.getGenericReturnType()));
                } catch (NoSuchMethodException e) {
                    throw new RpcException(e.getMessage(), e);
                }
            } else if (result.getException() instanceof GenericException) {
                GenericException exception = (GenericException) result.getException();
                try {
                    String className = exception.getExceptionClass();
                    Class<?> clazz = ReflectUtils.forName(className);
                    Throwable targetException = null;
                    Throwable lastException = null;
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                Class<?>[] params = method.getParameterTypes();
                if (args == null) {
                    args = new Object[params.length];
                }
                args = PojoUtils.realize(args, params);
                Result result = invoker.invoke(new RpcInvocation(method, args, inv.getAttachments()));
                if (result.hasException()
                        && ! (result.getException() instanceof GenericException)) {
                    return new RpcResult(new GenericException(result.getException()));
                }
                return new RpcResult(PojoUtils.generalize(result.getResult()));
            } catch (NoSuchMethodException e) {
                throw new RpcException(e.getMessage(), e);
            } catch (ClassNotFoundException e) {
                throw new RpcException(e.getMessage(), e);
            }
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            Object[] args = PojoUtils.generalize(arguments);
           
            invocation2.setMethodName(Constants.$INVOKE);
            invocation2.setParameterTypes(GENERIC_PARAMETER_TYPES);
            invocation2.setArguments(new Object[] {methodName, types, args});
            Result result = invoker.invoke(invocation2);
           
            if (! result.hasException()) {
                Object value = result.getResult();
                try {
                    return new RpcResult(PojoUtils.realize(value, invoker.getInterface().getMethod(methodName, parameterTypes).getReturnType()));
                } catch (NoSuchMethodException e) {
                    throw new RpcException(e.getMessage(), e);
                }
            } else if (result.getException() instanceof GenericException) {
                GenericException exception = (GenericException) result.getException();
                try {
                    String className = exception.getExceptionClass();
                    Class<?> clazz = ReflectUtils.forName(className);
                    Throwable targetException = null;
                    Throwable lastException = null;
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        for (int i = 0; i < len; i++) {
            Invoker<T> invoker = select(loadbalance, invocation, invokers, invoked);
            invoked.add(invoker);
            RpcContext.getContext().setInvokers((List)invoked);
            try {
                Result result = invoker.invoke(invocation);
                if (le != null && logger.isWarnEnabled()) {
                    logger.warn("Although retry the method " + invocation.getMethodName()
                            + " in the service " + getInterface().getName()
                            + " was successful by the provider " + invoker.getUrl().getAddress()
                            + ", but there have been failed providers " + providers
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Related Classes of com.alibaba.dubbo.rpc.Result

  • com.alibaba.dubbo.cache.filter.CacheFilter
  • com.alibaba.dubbo.monitor.support.MonitorFilter
  • com.alibaba.dubbo.rpc.cluster.support.BroadcastClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.FailbackClusterInvokerTest
  • com.alibaba.dubbo.rpc.cluster.support.FailfastClusterInvokerTest
  • com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvokerTest
  • com.alibaba.dubbo.rpc.cluster.support.FailSafeClusterInvokerTest
  • com.alibaba.dubbo.rpc.cluster.support.ForkingClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.ForkingClusterInvokerTest
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