/*
 *   Copyright 2013 Brian Rosenberger (Brutex Network)
 *
 *   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.brutex.xservices.util.cache;

import java.io.File;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.concurrent.ExecutorService;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import net.brutex.xservices.types.scm.ObjectFactory;
import org.apache.log4j.Logger;

/**
 * @author Brian Rosenberger, bru(at)brutex.de
 *
 */


public class CacheServlet extends HttpServlet
{
  private final Logger logger = Logger.getLogger(CacheServlet.class);
  List<File> configfiles = new ArrayList();
  int cacheinterval;
  private final ObjectFactory FACTORY = new ObjectFactory();

  public void init()
    throws ServletException
  {
    super.init();
    ExecutorService executor = (ExecutorService)getServletContext()
      .getAttribute("CACHE_EXECUTOR");

    Enumeration attributes = getServletContext()
      .getInitParameterNames();
    while (attributes.hasMoreElements()) {
      String name = (String)attributes.nextElement();
      if (name.startsWith("cvs-config-")) {
        String configfile = getServletContext()
          .getInitParameter(name);
        this.logger.info("CVS configuration file: " + configfile);
        this.configfiles.add(new File(configfile));
      }
    }
    this.cacheinterval = 15;
    try {
      this.cacheinterval = Integer.parseInt(getServletContext()
        .getInitParameter("cvs-cache-interval"));
    } catch (NumberFormatException e) {
      this.logger.debug("Could not read parameter 'cvs-cache-interval' from web.xml. Using default value '" + this.cacheinterval + "' minutes");
    }
    this.logger.info("CacheServlet set to " + this.cacheinterval + " minutes interval.");
  }
}