/**
 * <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.
 *
 * $Id: Verificator.java,v 1.1 2006/08/25 17:07:21 wprinz Exp $
 */
package at.knowcenter.wag.egov.egiz.framework;

import java.util.List;

import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;


/**
 * Given an Incremental Update Block and the corresponding PDF, a verificator
 * extracts all Signatures of its type and returns them as valitatable
 * SignatureHolders.
 * 
 * @deprecated replaced by the one in framework
 * 
 * @author wprinz
 */
public interface Verificator
{
  /**
   * Parses the given document/Block for signatures of this type.
   * 
   * @param pdf
   *          The whole pdf document. A Verificator must only access the
   *          document up to its given block (block.next_index) and must not
   *          modify any byte in the pdf array.
   * @param block
   *          The incremental update block.
   * @param start_of_whole_block
   *          The start of the incremental update block (the end of the previous
   *          block) - If 0, this is the first block (the original Document).
   * @return Returns the List of SignatureHolder objects found for this block.
   */
  public List parseBlock(final byte[] pdf, final FooterParseResult block,
      int start_of_whole_block) throws PresentableException;

}