/* * Copyright 1999-2012 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.validation.filter; import com.alibaba.dubbo.common.Constants; import com.alibaba.dubbo.common.extension.Activate; import com.alibaba.dubbo.common.utils.ConfigUtils; import com.alibaba.dubbo.rpc.Filter; import com.alibaba.dubbo.rpc.Invocation; import com.alibaba.dubbo.rpc.Invoker; import com.alibaba.dubbo.rpc.Result; import com.alibaba.dubbo.rpc.RpcException; import com.alibaba.dubbo.validation.Validation; import com.alibaba.dubbo.validation.Validator; /** * ValidationFilter * * @author william.liangf */ @Activate(group = { Constants.CONSUMER, Constants.PROVIDER }, value = Constants.VALIDATION_KEY, order = 10000) public class ValidationFilter implements Filter { private Validation validation; public void setValidation(Validation validation) { this.validation = validation; } public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException { if (validation != null && ! invocation.getMethodName().startsWith("$") && ConfigUtils.isNotEmpty(invoker.getUrl().getMethodParameter(invocation.getMethodName(), Constants.VALIDATION_KEY))) { try { Validator validator = validation.getValidator(invoker.getUrl()); if (validator != null) { validator.validate(invocation.getMethodName(), invocation.getParameterTypes(), invocation.getArguments()); } } catch (RpcException e) { throw e; } catch (Throwable t) { throw new RpcException(t.getMessage(), t); } } return invoker.invoke(invocation); } }