/*
 * Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
 *
 * Portions of this software were developed by the Unidata Program at the
 * University Corporation for Atmospheric Research.
 *
 * Access and use of this software shall impose the following obligations
 * and understandings on the user. The user is granted the right, without
 * any fee or cost, to use, copy, modify, alter, enhance and distribute
 * this software, and any derivative works thereof, and its supporting
 * documentation for any purpose whatsoever, provided that this entire
 * notice appears in all copies of the software, derivative works and
 * supporting documentation.  Further, UCAR requests that the user credit
 * UCAR/Unidata in any publications that result from the use of this
 * software or in any product that includes this software. The names UCAR
 * and/or Unidata, however, may not be used in any advertising or publicity
 * to endorse or promote any products or commercial entity unless specific
 * written permission is obtained from UCAR/Unidata. The user also
 * understands that UCAR/Unidata is not obligated to provide the user with
 * any support, consulting, training or assistance of any kind with regard
 * to the use, operation and performance of this software nor to provide
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 *
 * THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */
package thredds.server.config;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextListener;

import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.util.Log4jWebConfigurer;
import thredds.servlet.DataRootHandler;
import thredds.servlet.RestrictedAccessConfigListener;
import thredds.servlet.HtmlWriter;
import thredds.servlet.UsageLog;

/**
 * _more_
 *
 * @author edavis
 * @since 4.0
 */
public class TdsConfigContextListener
        implements ServletContextListener
{
  private org.slf4j.Logger logServerStartup =
          org.slf4j.LoggerFactory.getLogger( "serverStartup" );

  public void contextInitialized( ServletContextEvent event )
  {
    System.out.println( "TdsConfigContextListener.contextInitialized(): start." );

    // Get webapp context.
    ServletContext servletContext = event.getServletContext();
    WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext( servletContext );

    // Initialize the TDS context.
    TdsContext tdsContext = (TdsContext) wac.getBean( "tdsContext", TdsContext.class );
    tdsContext.init( servletContext );
    // tdsContext.init() call above initializes tds.log.dir system property
    // which is used in log4j.xml file loaded here.
    Log4jWebConfigurer.initLogging( servletContext );

    logServerStartup.info( "TdsConfigContextListener.contextInitialized() start[2]: " + UsageLog.setupNonRequestContext() );

    // Initialize the DataRootHandler.
    DataRootHandler catHandler = (DataRootHandler) wac.getBean( "tdsDRH", DataRootHandler.class );
    catHandler.registerConfigListener( new RestrictedAccessConfigListener() );
    catHandler.init();
    DataRootHandler.setInstance( catHandler );

    // Initialize the CDM, now that tdsContext is ready
    CdmInit cdmInit = (CdmInit) wac.getBean( "cdmInit", CdmInit.class );
    cdmInit.init(tdsContext);

    // Initialize HtmlWriter
    // LOOK! ToDo This should be removed once the catalog service controllers uses JSP.
    HtmlWriter.init( tdsContext );

    logServerStartup.info( "TdsConfigContextListener.contextInitialized(): done - " + UsageLog.closingMessageNonRequestContext() );

  }

  public void contextDestroyed( ServletContextEvent event )
  {
    logServerStartup.info( "TdsConfigContextListener.contextDestroyed(): start." + UsageLog.setupNonRequestContext() );
    ServletContext servletContext = event.getServletContext();
    WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext( servletContext );
    TdsContext tdsContext = (TdsContext) wac.getBean( "tdsContext", TdsContext.class );
    tdsContext.destroy();

    logServerStartup.info( "TdsConfigContextListener.contextDestroyed(): Done except for shutdownLogging() - " + UsageLog.closingMessageNonRequestContext());
    Log4jWebConfigurer.shutdownLogging( servletContext );
  }
}

@@ -2755,24 +2755,87 @@
 event )%0A  %7B%0A
+    // ToDo Instead of stdout, use servletContext.log( %22...%22).%0A
     System.o

Allow multiple TDS to be run on one Tomcat instance by setting the "log4jExposeWebAppRoot" context parameter to "false" in web.xml. It tells Spring not to expose the webapp root directory as the "webapp.dir" system property. Spring checks if it has been set before and this clashes when running mulitple TDS. [Also, see Esupport ticket #CZR-333353.]