/**
 * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
 * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
 * joint initiative of the Federal Chancellery Austria and Graz University of
 * Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */
package at.knowcenter.wag.egov.egiz.sig.sigid;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * @author wprinz
 * 
 */
public class HotfixIdFormatter implements IdFormatter
{
  /**
   * The SIG_ID prefix.
   */
  public static final String SIG_ID_PREFIX = "etsi-bka-1.0"; //$NON-NLS-1$

  /**
   * The log.
   */
  private static Log log = LogFactory.getLog(HotfixIdFormatter.class);

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.sigid.IdFormatter#formatIds(java.lang.String[])
   */
  public String formatIds(String[] ids, String algorithmParams)
  {
    // ids algorithm:
    String join = ""; //$NON-NLS-1$
    String base = null;
    for (int arr_idx = 0; arr_idx < ids.length; arr_idx++)
    {
      String id = ids[arr_idx];
      if (log.isDebugEnabled())
      {
        log.debug("Set BKU id:" + id); //$NON-NLS-1$
      }
      int id_idx = id.lastIndexOf("-"); //$NON-NLS-1$
      if (arr_idx == 0)
      {
        base = id.substring(0, id_idx);
      }
      String cur_id = id.substring(id_idx + 1);
      join += "-" + cur_id; //$NON-NLS-1$
    }

    String idstr = base + "@" + join.substring(1); //$NON-NLS-1$
    String final_ids = SIG_ID_PREFIX + "@" + idstr;

    return final_ids;
  }
}