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 java.util.Date; 26 import org.apache.harmony.security.asn1.ASN1Sequence; 27 import org.apache.harmony.security.asn1.ASN1Type; 28 import org.apache.harmony.security.asn1.BerInputStream; 29 30 /** 31 * The class encapsulates the ASN.1 DER encoding/decoding work 32 * with Validity structure which is the part of X.509 certificate 33 * (as specified in RFC 3280 - 34 * Internet X.509 Public Key Infrastructure. 35 * Certificate and Certificate Revocation List (CRL) Profile. 36 * http://www.ietf.org/rfc/rfc3280.txt): 37 * 38 * <pre> 39 * Validity ::= SEQUENCE { 40 * notBefore Time, 41 * notAfter Time 42 * } 43 * </pre> 44 */ 45 public final class Validity { 46 /** the value of notBefore field of the structure */ 47 private final Date notBefore; 48 /** the value of notAfter field of the structure */ 49 private final Date notAfter; 50 /** the ASN.1 encoded form of Validity */ 51 private byte[] encoding; 52 53 public Validity(Date notBefore, Date notAfter) { 54 this.notBefore = notBefore; 55 this.notAfter = notAfter; 56 } 57 58 /** 59 * Returns the value of notBefore field of the structure. 60 */ 61 public Date getNotBefore() { 62 return notBefore; 63 } 64 65 /** 66 * Returns the value of notAfter field of the structure. 67 */ 68 public Date getNotAfter() { 69 return notAfter; 70 } 71 72 /** 73 * Returns ASN.1 encoded form of this X.509 Validity value. 74 */ 75 public byte[] getEncoded() { 76 if (encoding == null) { 77 encoding = ASN1.encode(this); 78 } 79 return encoding; 80 } 81 82 /** 83 * ASN.1 DER X.509 Validity encoder/decoder class. 84 */ 85 public static final ASN1Sequence ASN1 86 = new ASN1Sequence(new ASN1Type[] {Time.ASN1, Time.ASN1 }) { 87 88 @Override protected Object getDecodedObject(BerInputStream in) { 89 Object[] values = (Object[]) in.content; 90 return new Validity((Date) values[0], (Date) values[1]); 91 } 92 93 @Override protected void getValues(Object object, Object[] values) { 94 Validity validity = (Validity) object; 95 values[0] = validity.notBefore; 96 values[1] = validity.notAfter; 97 } 98 }; 99 } 100