Package com.alibaba.dubbo.rpc

Examples of com.alibaba.dubbo.rpc.RpcResult

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        ExchangeClient currentClient = new HeaderExchangeClient(new ChannelWrapper(this.channel));

        try {
            if (getUrl().getMethodParameter(invocation.getMethodName(), Constants.ASYNC_KEY, false)) { // 不可靠异步
                currentClient.send(inv,getUrl().getMethodParameter(invocation.getMethodName(), Constants.SENT_KEY, false));
                return new RpcResult();
            }
            int timeout = getUrl().getMethodParameter(invocation.getMethodName(),
                    Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT);
            if (timeout > 0) {
                return (Result) currentClient.request(inv, timeout).get();
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                    // 是Dubbo本身的异常，直接抛出
                    if (exception instanceof RpcException) {
                        return result;
                    }
                    // 否则，包装成RuntimeException抛给客户端
                    return new RpcResult(new RuntimeException(StringUtils.toString(exception)));
                } catch (Throwable e) {
                    logger.warn(e.getMessage(), e);
                    return result;
                }
            }
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@Activate(group = Constants.PROVIDER, order = -20000)
public class EchoFilter implements Filter {

  public Result invoke(Invoker<?> invoker, Invocation inv) throws RpcException {
    if(inv.getMethodName().equals(Constants.$ECHO) && inv.getArguments() != null && inv.getArguments().length == 1 )
      return new RpcResult(inv.getArguments()[0]);
    return invoker.invoke(inv);
  }
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                            if (invocation.getArguments().length != 1) {
                                throw new IllegalArgumentException("The redis get method arguments mismatch, must only one arguments. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url);
                            }
                            byte[] value = jedisPool.getResource().get(String.valueOf(invocation.getArguments()[0]).getBytes());
                            if (value == null) {
                                return new RpcResult();
                            }
                            ObjectInput oin = getSerialization(url).deserialize(url, new ByteArrayInputStream(value));
                            return new RpcResult(oin.readObject());
                        } else if (set.equals(invocation.getMethodName())) {
                            if (invocation.getArguments().length != 2) {
                                throw new IllegalArgumentException("The redis set method arguments mismatch, must be two arguments. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url);
                            }
                            byte[] key = String.valueOf(invocation.getArguments()[0]).getBytes();
                            ByteArrayOutputStream output = new ByteArrayOutputStream();
                            ObjectOutput value = getSerialization(url).serialize(url, output);
                            value.writeObject(invocation.getArguments()[1]);
                            jedisPool.getResource().set(key, output.toByteArray());
                            if (expiry > 1000) {
                                jedisPool.getResource().expire(key, expiry / 1000);
                            }
                            return new RpcResult();
                        } else if (delete.equals(invocation.getMethodName())) {
                            if (invocation.getArguments().length != 1) {
                                throw new IllegalArgumentException("The redis delete method arguments mismatch, must only one arguments. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url);
                            }
                            jedisPool.getResource().del(String.valueOf(invocation.getArguments()[0]).getBytes());
                            return new RpcResult();
                        } else {
                            throw new UnsupportedOperationException("Unsupported method " + invocation.getMethodName() + " in redis service.");
                        }
                    } catch (Throwable t) {
                        RpcException re = new RpcException("Failed to invoke memecached service method. interface: " + type.getName() + ", method: " + invocation.getMethodName() + ", url: " + url + ", cause: " + t.getMessage(), t);
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                }
                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.getValue()));
            } catch (NoSuchMethodException e) {
                throw new RpcException(e.getMessage(), e);
            } catch (ClassNotFoundException e) {
                throw new RpcException(e.getMessage(), e);
            }
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            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;
                    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");
                            if (! field.isAccessible()) {
                                field.setAccessible(true);
                            }
                            field.set(targetException, exception.getExceptionMessage());
                        } catch (Throwable e) {
                            logger.warn(e.getMessage(), e);
                        }
                        result = new RpcResult(targetException);
                    } else if (lastException != null) {
                        throw lastException;
                    }
                } catch (Throwable e) {
                    throw new RpcException("Can not deserialize exception " + exception.getExceptionClass() + ", message: " + exception.getExceptionMessage(), e);
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            if (cache != null) {
                String key = StringUtils.toArgumentString(invocation.getArguments());
                if (cache != null && key != null) {
                    Object value = cache.get(key);
                    if (value != null) {
                        return new RpcResult(value);
                    }
                    Result result = invoker.invoke(invocation);
                    if (! result.hasException()) {
                        cache.put(key, result.getValue());
                    }
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@Activate(group = Constants.PROVIDER, order = -110000)
public class EchoFilter implements Filter {

  public Result invoke(Invoker<?> invoker, Invocation inv) throws RpcException {
    if(inv.getMethodName().equals(Constants.$ECHO) && inv.getArguments() != null && inv.getArguments().length == 1 )
      return new RpcResult(inv.getArguments()[0]);
    return invoker.invoke(inv);
  }
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                    }
                }
                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_NATIVE_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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            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;
                    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");
                            if (! field.isAccessible()) {
                                field.setAccessible(true);
                            }
                            field.set(targetException, exception.getExceptionMessage());
                        } catch (Throwable e) {
                            logger.warn(e.getMessage(), e);
                        }
                        result = new RpcResult(targetException);
                    } else if (lastException != null) {
                        throw lastException;
                    }
                } catch (Throwable e) {
                    throw new RpcException("Can not deserialize exception " + exception.getExceptionClass() + ", message: " + exception.getExceptionMessage(), e);
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Related Classes of com.alibaba.dubbo.rpc.RpcResult

  • com.alibaba.dubbo.cache.filter.CacheFilter
  • com.alibaba.dubbo.rpc.cluster.support.FailbackClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.FailsafeClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.MergeableClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.MergeableClusterInvokerTest
  • com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker
  • com.alibaba.dubbo.rpc.filter.CompatibleFilter
  • com.alibaba.dubbo.rpc.filter.CompatibleFilterFilterTest
  • com.alibaba.dubbo.rpc.filter.ContextFilterTest
  • com.alibaba.dubbo.rpc.filter.EchoFilter
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