pers.adar.lzy.filter.AccessLogFilter.java Source code

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Here is the source code for pers.adar.lzy.filter.AccessLogFilter.java

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/**
 * Copyright (c) 2015, adar.w (adar.w@outlook.com) 
 * 
 * http://www.adar-w.me
 * 
 * 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 pers.adar.lzy.filter;

import java.io.IOException;
import java.net.URLDecoder;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;

import pers.adar.lzy.common.Constants;
import pers.adar.lzy.entity.bo.User;
import pers.adar.lzy.log.Logger;

/**
 * 
 */
public class AccessLogFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    @Override
    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;

        logAccessAPI(request);

        chain.doFilter(request, response);
    }

    /*
     * ?
     */
    private void logAccessAPI(HttpServletRequest request) {
        try {
            User user = (User) request.getSession().getAttribute(Constants.SESSION_USER);
            String userId = user != null ? user.getId() : "NOT_LOGIN";
            String remoteAddr = request.getRemoteAddr();
            String method = request.getMethod();
            String requestURI = request.getRequestURI();
            String userAgent = StringUtils.defaultString(request.getHeader("User-Agent"));

            String queryString = request.getQueryString();
            if (queryString != null) {
                queryString = URLDecoder.decode(request.getQueryString(), Constants.CHARSET);
            }
            requestURI = requestURI
                    + (StringUtils.isNotEmpty(queryString) ? ("?" + queryString) : StringUtils.EMPTY);

            Logger.getRestAccessLogger().info(
                    String.format("[%s] [%s] [%s] %s [%s]", userId, remoteAddr, method, requestURI, userAgent));
        } catch (Exception e) {
            Logger.getRestAccessLogger().warn("AccessAPI logger error: " + e.getMessage(), e);
        }
    }
}