Package codec.x509.extensions

Source Code of codec.x509.extensions.QCStatementExtension

/* ========================================================================
*
*  This file is part of CODEC, which is a Java package for encoding
*  and decoding ASN.1 data structures.
*
*  Author: Fraunhofer Institute for Computer Graphics Research IGD
*          Department A8: Security Technology
*          Fraunhoferstr. 5, 64283 Darmstadt, Germany
*
*  Rights: Copyright (c) 2004 by Fraunhofer-Gesellschaft
*          zur Foerderung der angewandten Forschung e.V.
*          Hansastr. 27c, 80686 Munich, Germany.
*
* ------------------------------------------------------------------------
*
*  The software package is free software; you can redistribute it and/or
*  modify it under the terms of the GNU Lesser General Public License as
*  published by the Free Software Foundation; either version 2.1 of the
*  License, or (at your option) any later version.
*
*  This library 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
*  Lesser General Public License for more details.
*
*  You should have received a copy of the GNU Lesser General Public
*  License along with this software package; if not, write to the Free
*  Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
*  MA 02110-1301, USA or obtain a copy of the license at
*  http://www.fsf.org/licensing/licenses/lgpl.txt.
*
* ------------------------------------------------------------------------
*
*  The CODEC library can solely be used and distributed according to
*  the terms and conditions of the GNU Lesser General Public License .
*
*  The CODEC library has not been tested for the use or application
*  for a determined purpose. It is a developing version that can
*  possibly contain errors. Therefore, Fraunhofer-Gesellschaft zur
*  Foerderung der angewandten Forschung e.V. does not warrant that the
*  operation of the CODEC library will be uninterrupted or error-free.
*  Neither does Fraunhofer-Gesellschaft zur Foerderung der angewandten
*  Forschung e.V. warrant that the CODEC library will operate and
*  interact in an uninterrupted or error-free way together with the
*  computer program libraries of third parties which the CODEC library
*  accesses and which are distributed together with the CODEC library.
*
*  Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
*  does not warrant that the operation of the third parties's computer
*  program libraries themselves which the CODEC library accesses will
*  be uninterrupted or error-free.
*
*  Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
*  shall not be liable for any errors or direct, indirect, special,
*  incidental or consequential damages, including lost profits resulting
*  from the combination of the CODEC library with software of any user
*  or of any third party or resulting from the implementation of the
*  CODEC library in any products, systems or services of any user or
*  of any third party.
*
*  Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
*  does not provide any warranty nor any liability that utilization of
*  the CODEC library will not interfere with third party intellectual
*  property rights or with any other protected third party rights or will
*  cause damage to third parties. Fraunhofer Gesellschaft zur Foerderung
*  der angewandten Forschung e.V. is currently not aware of any such
*  rights.
*
*  The CODEC library is supplied without any accompanying services.
*
* ========================================================================
*/
package codec.x509.extensions;

import java.security.cert.CertificateEncodingException;

import codec.asn1.ASN1Exception;
import codec.asn1.ASN1ObjectIdentifier;
import codec.asn1.ASN1SequenceOf;
import codec.x509.X509Extension;

/**
* QCStatements ::= SEQUENCE OF QCStatement
*
* @author cval
*/

public class QCStatementExtension extends X509Extension {
    public static final String EXTENSION_OID = "1.3.6.1.5.5.7.1.3";

    private ASN1SequenceOf value_;

    /**
     * Constructor
     */
    public QCStatementExtension() throws ASN1Exception,
      CertificateEncodingException {
  value_ = new ASN1SequenceOf(QCStatement.class);

  setOID(new ASN1ObjectIdentifier(EXTENSION_OID));
  setCritical(false);
  setValue(value_);
    }

    /*
     * The semantic of this method is to add the given statement to the sequence
     * of existing statements. Please verify that this is what is intended.
     * --volker roth
     */
    public void addValue(QCStatement qcs) throws CertificateEncodingException {
  value_.add(qcs);

  /*
   * This is _very_ inefficient. Every time an object is added, the whole
   * sequence gets encoded again. Additionally, there is the exception
   * declaration to deal with.
   *
   * The big question is, whether other classes retrieve the value before
   * this instance gets encoded. If not, then the line below could
   * probabaly be removed, and the encode method given below could be
   * inserted. This at least defers encoding to the moment when it is
   * actually required.
   *
   * --volker roth
   */
  setValue(value_);
    }

    /*
     * This example method would defer encoding of the QCStatements to the time
     * when extensions are encoded.
     */
    // public void encode(Encoder enc) throws ASN1Exception, IOException
    // {
    // setValue(value_);
    // super.encode(enc);
    // }
}
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