/*
 * Copyright (c) 2002-2012 Alibaba Group Holding Limited.
 * All rights reserved.
 *
 * 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.citrus.service.requestcontext.parser;

import javax.servlet.http.HttpServletRequest;

/**
 * 用来拦截和修改用户提交的数据。
 *
 * @author Michael Zhou
 */
public interface ParameterParserFilter {
    /**
     * 是否需要过滤，如果返回否，则对于该请求的所有参数均不执行该过滤器。
     * <p>
     * 有些filter可以根据URL来确定是否要过滤参数。
     * </p>
     */
    boolean isFiltering(HttpServletRequest request);
}