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 package org.apache.harmony.security.x509; 19 20 import java.io.IOException; 21 22 /** 23 * This class implements the values of Subject Alternative Name 24 * (OID is 2.5.29.17) and Issuer Alternative Name extensions 25 * (OID is 2.5.29.18).<br> 26 * For more information about these extensions see RFC 3280 27 * at http://www.ietf.org/rfc/rfc3280.txt 28 */ 29 public final class AlternativeName extends ExtensionValue { 30 31 // constants indicating which alternative name is presented 32 // by this object 33 public static final boolean ISSUER = false; 34 public static final boolean SUBJECT = true; 35 36 /** indicating which alternative name is presented by this object */ 37 private boolean which; 38 /** the alternative names */ 39 private GeneralNames alternativeNames; 40 41 /** 42 * Creates the extension object on the base of its encoded form. 43 * @param which specifies which alternative names are given 44 * (Subject's or Issuer's) 45 */ 46 public AlternativeName(boolean which, byte[] encoding) throws IOException { 47 super(encoding); 48 this.which = which; 49 this.alternativeNames = (GeneralNames) GeneralNames.ASN1.decode(encoding); 50 } 51 52 /** 53 * Returns ASN.1 encoded form of this X.509 AlternativeName value. 54 */ 55 @Override public byte[] getEncoded() { 56 if (encoding == null) { 57 encoding = GeneralNames.ASN1.encode(alternativeNames); 58 } 59 return encoding; 60 } 61 62 @Override public void dumpValue(StringBuilder sb, String prefix) { 63 sb.append(prefix).append((which) ? "Subject" : "Issuer").append(" Alternative Names [\n"); 64 alternativeNames.dumpValue(sb, prefix + " "); 65 sb.append(prefix).append("]\n"); 66 } 67 } 68
