/**
 * Redistribution and use of this software and associated documentation ("Software"), with or
 * without modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and notices. Redistributions
 * must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided with
 * the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote products derived from this Software
 * without prior written permission of Intalio, Inc. For written permission, please contact
 * info@exolab.org.
 *
 * 4. Products derived from this Software may not be called "Exolab" nor may "Exolab" appear in
 * their names without prior written permission of Intalio, Inc. Exolab is a registered trademark of
 * Intalio, Inc.
 *
 * 5. Due credit should be given to the Exolab Project (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED 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 INTALIO, INC. OR ITS
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
 *
 * $Id$
 */


package org.exolab.castor.dsml.mozilla;


import java.util.Enumeration;
import netscape.ldap.LDAPConnection;
import netscape.ldap.LDAPEntry;
import netscape.ldap.LDAPException;
import netscape.ldap.LDAPModification;
import netscape.ldap.LDAPModificationSet;
import netscape.ldap.LDAPAttribute;
import netscape.ldap.LDAPAttributeSet;
import org.exolab.castor.dsml.Consumer;
import org.exolab.castor.dsml.ImportEventListener;
import org.exolab.castor.dsml.Importer;
import org.exolab.castor.dsml.ImportDescriptor;
import org.exolab.castor.dsml.ImportExportException;


/**
 *
 *
 * @author <a href="mailto:arkin@intalio.com">Assaf Arkin</a>
 * @version $Revision$ $Date: 2004-12-13 14:00:30 -0700 (Mon, 13 Dec 2004) $
 */
public class MozillaImporter extends Importer {


  private LDAPConnection _conn;


  public MozillaImporter(LDAPConnection conn) {
    _conn = conn;
  }


  protected Consumer createConsumer() {
    return new MozillaConsumer();
  }


  public void importEntry(LDAPEntry entry, int policy) throws LDAPException {
    LDAPEntry existing;
    LDAPModificationSet modifs;
    LDAPAttributeSet attrSet;
    LDAPAttribute attr;
    int i;
    Enumeration enumeration;

    if (entry.getAttributeSet() == null || entry.getAttributeSet().size() == 0) {

      if ((policy & ImportDescriptor.Policy.DELETE_EMPTY) != 0) {
        try {
          _conn.read(entry.getDN());
          _conn.delete(entry.getDN());
          notify(entry.getDN(), ImportEventListener.DELETED);
        } catch (LDAPException except) {
          // Object does not exist, was not removed, ignore.
          // Anything else, we must complain.
          if (except.getLDAPResultCode() != LDAPException.NO_SUCH_OBJECT)
            throw except;
          notify(entry.getDN(), ImportEventListener.IGNORED);
        }
      } else {
        notify(entry.getDN(), ImportEventListener.IGNORED);
      }

    } else {

      try {
        existing = _conn.read(entry.getDN());

        modifs = new LDAPModificationSet();
        attrSet = entry.getAttributeSet();
        for (i = 0; i < attrSet.size(); ++i) {
          attr = attrSet.elementAt(i);
          if (existing.getAttributeSet().getAttribute(attr.getName()) != null) {
            if ((policy & ImportDescriptor.Policy.NEW_ATTRIBUTE_ONLY) == 0) {
              if (attr.size() > 0) {
                modifs.add(LDAPModification.REPLACE, attr);
              } else {
                modifs.add(LDAPModification.DELETE, attr);
              }
            }
          } else {
            if ((policy & ImportDescriptor.Policy.UPDATE_ONLY) == 0) {
              if (attr.size() > 0) {
                modifs.add(LDAPModification.ADD, attr);
              }
            }
          }
        }
        if ((policy & ImportDescriptor.Policy.REPLACE_ATTRIBUTE) != 0) {
          enumeration = existing.getAttributeSet().getAttributes();
          while (enumeration.hasMoreElements()) {
            attr = (LDAPAttribute) enumeration.nextElement();
            if (entry.getAttribute(attr.getName()) == null) {
              modifs.add(LDAPModification.DELETE, attr);
            }
          }
        }
        if (modifs.size() > 0) {
          _conn.modify(entry.getDN(), modifs);
          notify(entry.getDN(), ImportEventListener.REFRESHED);
        } else {
          notify(entry.getDN(), ImportEventListener.IGNORED);
        }
      } catch (LDAPException except) {
        // Object does not exist, we create a new one.
        // Anything else, we must complain.
        if (except.getLDAPResultCode() != LDAPException.NO_SUCH_OBJECT)
          throw except;
        if ((policy & ImportDescriptor.Policy.REFRESH_ONLY) == 0) {
          _conn.add(entry);
          notify(entry.getDN(), ImportEventListener.CREATED);
        } else {
          notify(entry.getDN(), ImportEventListener.IGNORED);
        }
      }
    }
  }


  public void importEntries(Enumeration entries) throws ImportExportException {
    LDAPEntry entry;

    if (getImportDescriptor() == null)
      setImportDescriptor(new ImportDescriptor());
    try {
      while (entries.hasMoreElements()) {
        entry = (LDAPEntry) entries.nextElement();
        importEntry(entry, getImportDescriptor().getPolicy(entry.getDN()));
      }
    } catch (LDAPException except) {
      throw new ImportExportException(except);
    }
  }


}
