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      1 /*
      2  *  Licensed to the Apache Software Foundation (ASF) under one or more
      3  *  contributor license agreements.  See the NOTICE file distributed with
      4  *  this work for additional information regarding copyright ownership.
      5  *  The ASF licenses this file to You under the Apache License, Version 2.0
      6  *  (the "License"); you may not use this file except in compliance with
      7  *  the License.  You may obtain a copy of the License at
      8  *
      9  *     http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  */
     17 
     18 /**
     19 * @author Alexander Y. Kleymenov
     20 * @version $Revision$
     21 */
     22 
     23 package org.apache.harmony.security.x509;
     24 
     25 import org.apache.harmony.security.asn1.ASN1Any;
     26 import org.apache.harmony.security.asn1.ASN1Oid;
     27 import org.apache.harmony.security.asn1.ASN1Sequence;
     28 import org.apache.harmony.security.asn1.ASN1Type;
     29 import org.apache.harmony.security.asn1.BerInputStream;
     30 import org.apache.harmony.security.asn1.ObjectIdentifier;
     31 
     32 /**
     33  * The class encapsulates the ASN.1 DER encoding/decoding work
     34  * with PolicyInformation structure which is a subpart of certificatePolicies
     35  * (as specified in RFC 3280 -
     36  *  Internet X.509 Public Key Infrastructure.
     37  *  Certificate and Certificate Revocation List (CRL) Profile.
     38  *  http://www.ietf.org/rfc/rfc3280.txt):
     39  *
     40  * <pre>
     41  *  PolicyInformation ::= SEQUENCE {
     42  *       policyIdentifier   CertPolicyId,
     43  *       policyQualifiers   SEQUENCE SIZE (1..MAX) OF
     44  *                               PolicyQualifierInfo OPTIONAL
     45  *  }
     46  * </pre>
     47  *
     48  * TODO: This class is not fully implemented, implemented only work
     49  * with OIDs.
     50  */
     51 public final class PolicyInformation {
     52     /** the value of policyIdentifier field of the structure */
     53     private final String policyIdentifier;
     54     /** the ASN.1 encoded form of PolicyInformation */
     55     private byte[] encoding;
     56 
     57     public PolicyInformation(String policyIdentifier) {
     58         this.policyIdentifier = policyIdentifier;
     59     }
     60 
     61     /**
     62      * Returns the value of policyIdentifier field of the structure.
     63      */
     64     public String getPolicyIdentifier() {
     65         return policyIdentifier;
     66     }
     67 
     68     /**
     69      * Returns ASN.1 encoded form of this X.509 PolicyInformation value.
     70      */
     71     public byte[] getEncoded() {
     72         if (encoding == null) {
     73             encoding = ASN1.encode(this);
     74         }
     75         return encoding;
     76     }
     77 
     78     public void dumpValue(StringBuilder sb) {
     79         sb.append("Policy Identifier [").append(policyIdentifier).append(']');
     80     }
     81 
     82     /**
     83      * ASN.1 DER X.509 PolicyInformation encoder/decoder class.
     84      */
     85     public static final ASN1Sequence ASN1 = new ASN1Sequence(
     86             new ASN1Type[] { ASN1Oid.getInstance(), ASN1Any.getInstance() }) {
     87         {
     88             setOptional(1);
     89         }
     90 
     91         @Override protected Object getDecodedObject(BerInputStream in) {
     92             Object[] values = (Object[]) in.content;
     93             return new PolicyInformation(ObjectIdentifier.toString((int[]) values[0]));
     94         }
     95 
     96         @Override protected void getValues(Object object, Object[] values) {
     97             PolicyInformation pi = (PolicyInformation) object;
     98             values[0] = ObjectIdentifier.toIntArray(pi.policyIdentifier);
     99         }
    100     };
    101 }
    102