| /*
|
| * Copyright 1999-2011 Alibaba Group.
|
| *
|
| * Licensed under the Apache License, Version 2.0 (the "License");
|
| * you may not use this file except in compliance with the License.
|
| * You may obtain a copy of the License at
|
| *
|
| * http://www.apache.org/licenses/LICENSE-2.0
|
| *
|
| * Unless required by applicable law or agreed to in writing, software
|
| * distributed under the License is distributed on an "AS IS" BASIS,
|
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| * See the License for the specific language governing permissions and
|
| * limitations under the License.
|
| */
|
| package com.alibaba.dubbo.rpc.filter; |
| |
| import java.lang.reflect.Method; |
| |
| import com.alibaba.dubbo.common.Constants; |
| import com.alibaba.dubbo.common.Extension; |
| import com.alibaba.dubbo.common.utils.PojoUtils; |
| import com.alibaba.dubbo.common.utils.ReflectUtils; |
| import com.alibaba.dubbo.rpc.Filter; |
| import com.alibaba.dubbo.rpc.Invoker; |
| import com.alibaba.dubbo.rpc.RpcException; |
| import com.alibaba.dubbo.rpc.Invocation; |
| import com.alibaba.dubbo.rpc.Result; |
| import com.alibaba.dubbo.rpc.RpcInvocation;
|
| import com.alibaba.dubbo.rpc.RpcResult;
|
| import com.alibaba.dubbo.rpc.service.GenericException;
|
| |
| /** |
| * GenericInvokerFilter. |
| * |
| * @author william.liangf |
| */ |
| @Extension("generic") |
| public class GenericFilter implements Filter { |
| |
| public Result invoke(Invoker<?> invoker, Invocation inv) throws RpcException { |
| if (inv.getMethodName().equals(Constants.$INVOKE) |
| && inv.getArguments() != null |
| && inv.getArguments().length == 3 |
| && ! invoker.getUrl().getParameter(Constants.GENERIC_KEY, false)) {
|
| String name = ((String) inv.getArguments()[0]).trim(); |
| String[] types = (String[]) inv.getArguments()[1]; |
| Object[] args = (Object[]) inv.getArguments()[2]; |
| try { |
| Method method = ReflectUtils.findMethodByMethodSignature(invoker.getInterface(), name, types); |
| 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)); |
| if (result.hasException()) { |
| 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); |
| } |
| } |
| return invoker.invoke(inv); |
| } |
| |
| } |