/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF licenses this file to You 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.rpc.RpcResult; | |
import com.alibaba.dubbo.validation.Validation; | |
import com.alibaba.dubbo.validation.Validator; | |
/** | |
* ValidationFilter | |
*/ | |
@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; | |
} | |
@Override | |
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) { | |
return new RpcResult(t); | |
} | |
} | |
return invoker.invoke(invocation); | |
} | |
} |