Examples with GenericException com.alibaba.dubbo.rpc.service.GenericException used on opensource projects

Example 6 with GenericException

use of com.alibaba.dubbo.rpc.service.GenericException in project dubbo by alibaba.

the class ConfigTest method testGenericServiceConfig.

@Test
public void testGenericServiceConfig() throws Exception {
    ServiceConfig<GenericService> service = new ServiceConfig<GenericService>();
    service.setApplication(new ApplicationConfig("test"));
    service.setRegistry(new RegistryConfig("mock://localhost"));
    service.setInterface(DemoService.class.getName());
    service.setGeneric(Constants.GENERIC_SERIALIZATION_BEAN);
    service.setRef(new GenericService() {

        public Object $invoke(String method, String[] parameterTypes, Object[] args) throws GenericException {
            return null;
        }
    });
    try {
        service.export();
        Collection<Registry> collection = MockRegistryFactory.getCachedRegistry();
        MockRegistry registry = (MockRegistry) collection.iterator().next();
        URL url = registry.getRegistered().get(0);
        Assert.assertEquals(Constants.GENERIC_SERIALIZATION_BEAN, url.getParameter(Constants.GENERIC_KEY));
    } finally {
        MockRegistryFactory.cleanCachedRegistry();
        service.unexport();
    }
}

Example 7 with GenericException

use of com.alibaba.dubbo.rpc.service.GenericException 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);
}