Examples with RpcResult com.alibaba.dubbo.rpc.RpcResult used on opensource projects

Example 21 with RpcResult

use of com.alibaba.dubbo.rpc.RpcResult in project dubbo by alibaba.

the class ExceptionFilter method invoke.

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) && (exception instanceof Exception)) {
                    return result;
                }
                // 在方法签名上有声明，直接抛出
                try {
                    Method method = invoker.getInterface().getMethod(invocation.getMethodName(), invocation.getParameterTypes());
                    Class<?>[] exceptionClassses = method.getExceptionTypes();
                    for (Class<?> exceptionClass : exceptionClassses) {
                        if (exception.getClass().equals(exceptionClass)) {
                            return result;
                        }
                    }
                } catch (NoSuchMethodException e) {
                    return result;
                }
                // 未在方法签名上定义的异常，在服务器端打印ERROR日志
                logger.error("Got unchecked and undeclared exception which called by " + RpcContext.getContext().getRemoteHost() + ". service: " + invoker.getInterface().getName() + ", method: " + invocation.getMethodName() + ", exception: " + exception.getClass().getName() + ": " + exception.getMessage(), exception);
                // 异常类和接口类在同一jar包里，直接抛出
                String serviceFile = ReflectUtils.getCodeBase(invoker.getInterface());
                String exceptionFile = ReflectUtils.getCodeBase(exception.getClass());
                if (serviceFile == null || exceptionFile == null || serviceFile.equals(exceptionFile)) {
                    return result;
                }
                // 是JDK自带的异常，直接抛出
                String className = exception.getClass().getName();
                if (className.startsWith("java.") || className.startsWith("javax.")) {
                    return result;
                }
                // 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("Fail to ExceptionFilter when called by " + RpcContext.getContext().getRemoteHost() + ". service: " + invoker.getInterface().getName() + ", method: " + invocation.getMethodName() + ", exception: " + e.getClass().getName() + ": " + e.getMessage(), e);
                return result;
            }
        }
        return result;
    } catch (RuntimeException e) {
        logger.error("Got unchecked and undeclared exception which called by " + RpcContext.getContext().getRemoteHost() + ". service: " + invoker.getInterface().getName() + ", method: " + invocation.getMethodName() + ", exception: " + e.getClass().getName() + ": " + e.getMessage(), e);
        throw e;
    }
}

Example 22 with RpcResult

use of com.alibaba.dubbo.rpc.RpcResult in project dubbo by alibaba.

the class GenericImplFilter method invoke.

public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
    String generic = invoker.getUrl().getParameter(Constants.GENERIC_KEY);
    if (ProtocolUtils.isGeneric(generic) && !Constants.$INVOKE.equals(invocation.getMethodName()) && invocation instanceof RpcInvocation) {
        RpcInvocation invocation2 = (RpcInvocation) invocation;
        String methodName = invocation2.getMethodName();
        Class<?>[] parameterTypes = invocation2.getParameterTypes();
        Object[] arguments = invocation2.getArguments();
        String[] types = new String[parameterTypes.length];
        for (int i = 0; i < parameterTypes.length; i++) {
            types[i] = ReflectUtils.getName(parameterTypes[i]);
        }
        Object[] args;
        if (ProtocolUtils.isBeanGenericSerialization(generic)) {
            args = new Object[arguments.length];
            for (int i = 0; i < arguments.length; i++) {
                args[i] = JavaBeanSerializeUtil.serialize(arguments[i], JavaBeanAccessor.METHOD);
            }
        } else {
            args = PojoUtils.generalize(arguments);
        }
        invocation2.setMethodName(Constants.$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);
                if (ProtocolUtils.isBeanGenericSerialization(generic)) {
                    if (value == null) {
                        return new RpcResult(value);
                    } else if (value instanceof JavaBeanDescriptor) {
                        return new RpcResult(JavaBeanSerializeUtil.deserialize((JavaBeanDescriptor) value));
                    } else {
                        throw new RpcException(new StringBuilder(64).append("The type of result value is ").append(value.getClass().getName()).append(" other than ").append(JavaBeanDescriptor.class.getName()).append(", and the result is ").append(value).toString());
                    }
                } else {
                    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);
            }
        }
        return result;
    }
    if (invocation.getMethodName().equals(Constants.$INVOKE) && invocation.getArguments() != null && invocation.getArguments().length == 3 && ProtocolUtils.isGeneric(generic)) {
        Object[] args = (Object[]) invocation.getArguments()[2];
        if (ProtocolUtils.isJavaGenericSerialization(generic)) {
            for (Object arg : args) {
                if (!(byte[].class == arg.getClass())) {
                    error(byte[].class.getName(), arg.getClass().getName());
                }
            }
        } else if (ProtocolUtils.isBeanGenericSerialization(generic)) {
            for (Object arg : args) {
                if (!(arg instanceof JavaBeanDescriptor)) {
                    error(JavaBeanDescriptor.class.getName(), arg.getClass().getName());
                }
            }
        }
        ((RpcInvocation) invocation).setAttachment(Constants.GENERIC_KEY, invoker.getUrl().getParameter(Constants.GENERIC_KEY));
    }
    return invoker.invoke(invocation);
}

Example 23 with RpcResult

use of com.alibaba.dubbo.rpc.RpcResult in project dubbo by alibaba.

the class CompatibleFilterFilterTest method testInvokerNonJsonPojoSerialization.

@Test
public void testInvokerNonJsonPojoSerialization() {
    invocation = EasyMock.createMock(Invocation.class);
    EasyMock.expect(invocation.getMethodName()).andReturn("echo").anyTimes();
    EasyMock.expect(invocation.getParameterTypes()).andReturn(new Class<?>[] { String.class }).anyTimes();
    EasyMock.expect(invocation.getArguments()).andReturn(new Object[] { "hello" }).anyTimes();
    EasyMock.replay(invocation);
    invoker = EasyMock.createMock(Invoker.class);
    EasyMock.expect(invoker.isAvailable()).andReturn(true).anyTimes();
    EasyMock.expect(invoker.getInterface()).andReturn(DemoService.class).anyTimes();
    RpcResult result = new RpcResult();
    result.setValue("hello");
    EasyMock.expect(invoker.invoke(invocation)).andReturn(result).anyTimes();
    URL url = URL.valueOf("test://test:11/test?group=dubbo&version=1.1");
    EasyMock.expect(invoker.getUrl()).andReturn(url).anyTimes();
    EasyMock.replay(invoker);
    Result filterResult = compatibleFilter.invoke(invoker, invocation);
    assertEquals("hello", filterResult.getValue());
}

Example 24 with RpcResult

use of com.alibaba.dubbo.rpc.RpcResult in project dubbo by alibaba.

the class CompatibleFilterFilterTest method testInvokerNonJsonEnumSerialization.

@Test
public void testInvokerNonJsonEnumSerialization() {
    invocation = EasyMock.createMock(Invocation.class);
    EasyMock.expect(invocation.getMethodName()).andReturn("enumlength").anyTimes();
    EasyMock.expect(invocation.getParameterTypes()).andReturn(new Class<?>[] { Type[].class }).anyTimes();
    EasyMock.expect(invocation.getArguments()).andReturn(new Object[] { "hello" }).anyTimes();
    EasyMock.replay(invocation);
    invoker = EasyMock.createMock(Invoker.class);
    EasyMock.expect(invoker.isAvailable()).andReturn(true).anyTimes();
    EasyMock.expect(invoker.getInterface()).andReturn(DemoService.class).anyTimes();
    RpcResult result = new RpcResult();
    result.setValue("High");
    EasyMock.expect(invoker.invoke(invocation)).andReturn(result).anyTimes();
    URL url = URL.valueOf("test://test:11/test?group=dubbo&version=1.1");
    EasyMock.expect(invoker.getUrl()).andReturn(url).anyTimes();
    EasyMock.replay(invoker);
    Result filterResult = compatibleFilter.invoke(invoker, invocation);
    assertEquals(Type.High, filterResult.getValue());
}

Example 25 with RpcResult

use of com.alibaba.dubbo.rpc.RpcResult in project dubbo by alibaba.

the class CompatibleFilterFilterTest method testInvokerGeneric.

@Test
public void testInvokerGeneric() {
    invocation = EasyMock.createMock(Invocation.class);
    EasyMock.expect(invocation.getMethodName()).andReturn("$enumlength").anyTimes();
    EasyMock.expect(invocation.getParameterTypes()).andReturn(new Class<?>[] { Enum.class }).anyTimes();
    EasyMock.expect(invocation.getArguments()).andReturn(new Object[] { "hello" }).anyTimes();
    EasyMock.replay(invocation);
    invoker = EasyMock.createMock(Invoker.class);
    EasyMock.expect(invoker.isAvailable()).andReturn(true).anyTimes();
    EasyMock.expect(invoker.getInterface()).andReturn(DemoService.class).anyTimes();
    RpcResult result = new RpcResult();
    result.setValue("High");
    EasyMock.expect(invoker.invoke(invocation)).andReturn(result).anyTimes();
    URL url = URL.valueOf("test://test:11/test?group=dubbo&version=1.1");
    EasyMock.expect(invoker.getUrl()).andReturn(url).anyTimes();
    EasyMock.replay(invoker);
    Result filterResult = compatibleFilter.invoke(invoker, invocation);
    assertEquals(filterResult, result);
}