/*
 * Copyright (C) 2000 - 2024 Silverpeas
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * As a special exception to the terms and conditions of version 3.0 of
 * the GPL, you may redistribute this Program in connection with Free/Libre
 * Open Source Software ("FLOSS") applications as described in Silverpeas's
 * FLOSS exception.  You should have received a copy of the text describing
 * the FLOSS exception, and it is also available here:
 * "https://www.silverpeas.org/legal/floss_exception.html"
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
/*
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 * and open the template in the editor.
 */

package org.silverpeas.core.notification.user.server.xml;

import org.silverpeas.core.notification.user.server.NotificationData;
import org.silverpeas.core.notification.user.server.NotificationServerUtil;
import org.silverpeas.core.notification.user.server.NotificationTag;
import java.io.CharArrayWriter;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

/**
 * @author ehugonnet
 */
class TargetParamContentHandler extends DefaultHandler {

  private final NotificationData data;
  private final ContentHandler parent;
  private final XMLReader parser;
  private final CharArrayWriter buffer = new CharArrayWriter();

  public TargetParamContentHandler(NotificationData data, ContentHandler parent, XMLReader parser) {
    this.data = data;
    this.parent = parent;
    this.parser = parser;
  }

  @Override
  public void characters(char[] ch, int start, int length) throws SAXException {
    buffer.write(ch, start, length);
  }

  @Override
  public void endElement(String uri, String localName, String qName) throws SAXException {
    NotificationTag tag = NotificationTag.valueOf(qName);
    if (tag == NotificationTag.PARAM) {
      data.setTargetParam(NotificationServerUtil.unpackKeyValues(buffer.toString()));
      parser.setContentHandler(parent);
    }
  }
}
