net.gbmb.collector.FlowFilter.java Source code

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Here is the source code for net.gbmb.collector.FlowFilter.java

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/*
 * Copyright 2014 Guillaume Bailleul
 *
 * 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 net.gbmb.collector;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebFilter(urlPatterns = { "/*" })
public class FlowFilter implements HandlerInterceptor {

    private static final Logger LOGGER = LoggerFactory.getLogger(FlowFilter.class);

    private boolean acceptRequest = true;

    public boolean isAcceptRequest() {
        return acceptRequest;
    }

    public void setAcceptRequest(boolean acceptRequest) {
        this.acceptRequest = acceptRequest;
    }

    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
            Object o) throws Exception {
        LOGGER.debug(" IN FILTER {} / {}", httpServletRequest.getMethod(), httpServletRequest.getRequestURI());
        if (acceptRequest) {
            return true;
        } else {
            // else return http status gone
            httpServletResponse.setStatus(HttpStatus.GONE.value());
            return false;
        }
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o,
            ModelAndView modelAndView) throws Exception {
        LOGGER.debug("OUT FILTER {} / {} >> {}", httpServletRequest.getMethod(), httpServletRequest.getRequestURI(),
                httpServletResponse.getStatus());
    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
            Object o, Exception e) throws Exception {
        // do nothing
    }

}