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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.ASN1Choice;
     26 import org.apache.harmony.security.asn1.ASN1GeneralizedTime;
     27 import org.apache.harmony.security.asn1.ASN1Type;
     28 import org.apache.harmony.security.asn1.ASN1UTCTime;
     29 
     30 /**
     31  * Class represents the work with the following X.509 structure:
     32  * (as specified in RFC 3280 -
     33  *  Internet X.509 Public Key Infrastructure.
     34  *  Certificate and Certificate Revocation List (CRL) Profile.
     35  *  http://www.ietf.org/rfc/rfc3280.txt):
     36  *
     37  * <pre>
     38  * Time ::= CHOICE {
     39  *       utcTime        UTCTime,
     40  *       generalTime    GeneralizedTime
     41  * }
     42  * </pre>
     43  */
     44 public final class Time {
     45     private static final long JAN_01_2050 = 2524608000000L;
     46 
     47     public static final ASN1Choice ASN1 = new ASN1Choice(new ASN1Type[] {
     48             ASN1GeneralizedTime.getInstance(), ASN1UTCTime.getInstance() }) {
     49 
     50         public int getIndex(java.lang.Object object) {
     51             // choose encoding method (see RFC 3280 p. 22)
     52             if (((java.util.Date) object).getTime() < JAN_01_2050) {
     53                 return 1; // it is before 2050, so encode as UTCTime
     54             } else {
     55                 return 0; // it is after 2050, encode as GeneralizedTime
     56             }
     57         }
     58 
     59         public Object getObjectToEncode(Object object) {
     60             return object;
     61         }
     62     };
     63 }
     64 
     65