/* ***************************************************************************
    * Copyright (c) 2008 Brabenetz Harald, Austria.
    *
    * 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 org.settings4j.helper.web;
  
  import javax.servlet.ServletContextEvent;
  import javax.servlet.ServletContextListener;
  
  
  /**
   * {@link javax.servlet.ServletContextListener} to initialize the {@link DefaultPropertiesLoader}.
   * <p>
   * Example Configuration could look like the following:
   * 
   * <pre>
   * web.xml
   * --------------------------------------
   * &lt;context-param&gt;
   *     &lt;param-name&gt;settings4jDefaultProperties&lt;/param-name&gt;
   *     &lt;param-value&gt;
   *         com/myCompany/myApp/log4j.configuration=com/myCompany/myApp/log4j.xml
   *     &lt;/param-value&gt;
   * &lt;/context-param&gt;
   * 
   * &lt;listener&gt;
   *     &lt;display-name&gt;&lt;/display-name&gt;
   *     &lt;listener-class&gt;org.settings4j.helper.web.DefaultPropertiesLoaderListener&lt;/listener-class&gt;
   * &lt;/listener&gt;
   * --------------------------------------
   * </pre>
   * 
   * @author brabenetz
   */
  public class DefaultPropertiesLoaderListener implements ServletContextListener {
  
      /** {@inheritDoc} */
      public void contextInitialized(final ServletContextEvent event) {
          new DefaultPropertiesLoader().initDefaultProperties(event.getServletContext());
      }
  
  
      /** {@inheritDoc} */
      public void contextDestroyed(final ServletContextEvent event) {
          // do nothing
      }
  
  }