Source code: openfuture/editxml/servlet/DomainFromFileProviderServlet.java

   package openfuture.editxml.servlet;
   /*
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2 of the License, or (at your option) any later version.<p>
    *
    * This library 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
   * Lesser General Public License for more details.<p>
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA<br>
   * http://www.gnu.org/copyleft/lesser.html
   */
  
  import java.io.BufferedReader;
  import java.io.FileNotFoundException;
  import java.io.FileReader;
  import java.io.IOException;
  import java.util.LinkedList;
  import java.util.LinkedList;
  import java.util.StringTokenizer;
  import javax.servlet.ServletConfig;
  import javax.servlet.ServletException;
  import openfuture.editxml.model.JspConstants;
  import openfuture.editxml.model.XmlDomain;
  import openfuture.util.servlet.HttpActionServlet;
  
  // Configuration Management Information: 
  // -------------------------------------
  // $Id: DomainFromFileProviderServlet.java,v 1.1.1.1 2001/07/08 18:29:31 wreissen Exp $
  //
  // Version History:
  // ----------------
  // $Log: DomainFromFileProviderServlet.java,v $
  // Revision 1.1.1.1  2001/07/08 18:29:31  wreissen
  // initial version registered ad SourceForge
  //
  // Revision 1.1  2001/05/09 20:07:27  wreissen
  // initial version.
  //
  //
  // ***********************************************************************************
  /**
   * This servlet initializes the list of XML domains from an initialization
   * file. The file is set as init parameter.<p>
   *
   *
   * Created: Tue Apr 10 18:46:52 2001
   *
   * @author <a href="mailto:wolfgang@openfuture.de">Wolfgang Reissenberger</a>
   * @version $Revision: 1.1.1.1 $
   */
  
  public class DomainFromFileProviderServlet extends HttpActionServlet
      implements JspConstants {
      
  
      /**
       * Initializes the servlet. The following initialization
       * parameters are recognized:
       * <ul>
       *   <li> <strong>initfile</strong>: File holding the XML domains
       *        as a semicolon separated list: &lt;name&gt;; &lt;DTD URL&gt;;
       *        &lt;editor URL&gt;; &lt;upload directory&gt;;
       *        &lt;file name filter&gt;; 
       *        &lt;URL prefix of the XML files&gt;.<br>
       *        [<em>Default: xmldomains.txt</em>]
       * </ul><p>
       * 
       * The following context parameters are set:
       * <ul>
       *   <li> <strong>openfuture.editxml.domains</strong>: a
       *        {@link java.util.LinkedList list} of 
       *        {@link openfuture.editxml.model.XmlDomain XmlDomain}.
       * </ul>
       *
       * @param config a <code>ServletConfig</code> value
       * @exception ServletException if an error occurs
       */
      public void init (ServletConfig config) throws ServletException  {
  
    super.init(config);
  
    // initialize the locales
    String value = getInitParameter("initfile");
    if (value == null) value = "xmldomains.txt";
  
    // open the file
  
    try {
        BufferedReader in = new BufferedReader(new FileReader(value));
  
        String line;
        int nr = 0;
  
       LinkedList domains = new LinkedList();
 
       while((line = in.readLine()) != null) {
     nr++;
     StringTokenizer st = new StringTokenizer(line.trim(), ";");
 
     if (st.countTokens() == 7) {
         String name = st.nextToken().trim();
         String dtd = st.nextToken().trim();
         String editor = st.nextToken().trim();
         String directory = st.nextToken().trim();
         String filter = st.nextToken().trim();
         String urlprefix = st.nextToken().trim();
         String xmlPathList = st.nextToken().trim();      
 
         // separate the namespace        
         LinkedList xmlPath = new LinkedList();
         StringTokenizer nst = new StringTokenizer(xmlPathList,
                     ",");
 
         while (nst.hasMoreElements()) {
       String path = ((String) nst.nextElement()).trim();
       xmlPath.add(path);
       log("XML domain: adding path " + path);
         }
 
         domains.add(new XmlDomain(name, dtd, editor, directory,
                 filter, urlprefix, xmlPath));
 
         log("new XML domain: " + name);
     } else {
         log("WRONG number of tokens. " + st.countTokens() +
       " instead of expected 7: " + line);
     }
       }
       getServletContext().setAttribute(XML_DOMAINS, domains);
 
       log("XML domains initialized successfully.");
   } catch (FileNotFoundException e) {
       log (e.getMessage());
       log("XML domains initialization FAILED!");
   } catch (IOException e) {
       log (e.getMessage());
       log("XML domains initialization FAILED!");
   }
     }
     
 } // DomainFromFileProviderServlet