Metacat

/**

 *  '$RCSfile$'

 *    Purpose: a class to handle document info request xml strings

 *  Copyright: 2000 Regents of the University of California and the

 *             National Center for Ecological Analysis and Synthesis

 *    Authors: Chad Berkley

 *

 *   '$Author: leinfelder $'

 *     '$Date: 2008-10-13 10:40:21 -0700 (Mon, 13 Oct 2008) $'

 * '$Revision: 4448 $'

 *

 * This program 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 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

package edu.ucsb.nceas.metacat;

import java.sql.*;

import java.util.Stack;

import java.util.Vector;

import java.util.Enumeration;

import java.util.EmptyStackException;

import java.util.Hashtable;

import org.xml.sax.Attributes;

import org.xml.sax.SAXException;

import org.xml.sax.SAXParseException;

import org.xml.sax.ext.DeclHandler;

import org.xml.sax.ext.LexicalHandler;

import org.xml.sax.helpers.DefaultHandler;

/** 

 * A Class implementing callback bethods for the SAX parser to

 * call when processing the XML messages from the replication handler

 */

public class DocInfoHandler extends DefaultHandler 

{

  private Hashtable docinfo = new Hashtable();

  private String currentTag = null;

  private Vector accessControlList = new Vector();

  public DocInfoHandler()

  {

  }

  /**

   *  capture the name of the tag.

   */

  public void startElement(String uri, String localName, String qName, 

                           Attributes attributes) throws SAXException

  {

    currentTag = localName;

  }

  public void endElement (String uri, String localName, String qName)

	throws SAXException

  {

	  if (localName.equals("access")) {

		  //harvest the latest values from the Map

		  String docid = (String) docinfo.get("docid");

		  String principal = (String) docinfo.get("principal");

          String permission = (String) docinfo.get("permission");

          String permType = (String) docinfo.get("permType");

          String permOrder = (String) docinfo.get("permOrder");

          AccessControlForSingleFile acfsf = null;

		try {

			acfsf = new AccessControlForSingleFile(docid, principal, permission, permType, permOrder);

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}	

		accessControlList.add(acfsf);

	  }

	  //save the list when we are done

	  if (localName.equals("accessControl")) {

		  docinfo.put("accessControl", accessControlList);

	  }

  }

  /**

   * put the content and the name of the tag into the hashtable.  the name of

   * the tag is the key.

   */

  public void characters(char[] ch, int start, int length) throws SAXException

  {

    docinfo.put(currentTag, new String(ch, start, length));

  }

  public Hashtable getDocInfo()

  {

    return docinfo;

  }

}