net.swas.explorer.servlet.ms.GetAuditLog.java Source code

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Here is the source code for net.swas.explorer.servlet.ms.GetAuditLog.java

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/*
 * This file is part of WebSiren.
 *
 *  WebSiren is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
    
 *  WebSiren is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with WebSiren.  If not, see <http://www.gnu.org/licenses/>.
 */
package net.swas.explorer.servlet.ms;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.Stack;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.swas.explorer.ms.events.AuditLogCache;
import net.swas.explorer.util.FormFieldValidator;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import org.openjena.atlas.json.JsonObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.hp.hpl.jena.sparql.pfunction.library.listIndex;

/**
 * The GetAuditLog is a Servlet implementation class  for processing get audit logs request and sends back
 * the list of audit logs in a cache. 
 */
@WebServlet("/getAuditLog")
public class GetAuditLog extends HttpServlet {

    private final static Logger log = LoggerFactory.getLogger(GetAuditLog.class);
    private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public GetAuditLog() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    @SuppressWarnings("unchecked")
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");
        PrintWriter out = response.getWriter();

        try {

            JSONObject respJson = new JSONObject();

            if (AuditLogCache.isAELInitialized()) {

                if (AuditLogCache.getAEL().size() > 0) {

                    Queue<JSONObject> list = AuditLogCache.getAEL();

                    out.print(list.toString());
                    log.info("GetAudit Already have : " + list.toString());
                    //AuditLogCache.flushAEL();

                } else {

                    respJson.put("status", "1");
                    log.info("Sending Json : " + respJson.toString());
                    out.print(respJson.toString());

                }

            } else {

                respJson.put("status", "1");
                log.info("Sending Json : " + respJson.toString());
                out.print(respJson.toString());
            }

        } finally {
            out.close();
        }

    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // TODO Auto-generated method stub
    }

}