content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF licenses this file to You under the Apache License, Version 2.0
   *  (the "License"); you may not use this file except in compliance with
   *  the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  package android.framework.org.apache.harmony.security_custom.x509;
  
  import java.io.IOException;
  
  /**
   * This class implements the values of Subject Alternative Name
   * (OID is 2.5.29.17) and Issuer Alternative Name extensions
   * (OID is 2.5.29.18).<br>
   * For more information about these extensions see RFC 3280
   * at http://www.ietf.org/rfc/rfc3280.txt
   */
  public final class AlternativeName extends ExtensionValue {
  
      // constants indicating which alternative name is presented
      // by this object
      public static final boolean ISSUER = false;
      public static final boolean SUBJECT = true;
  
      /** indicating which alternative name is presented by this object */
      private boolean which;
      /** the alternative names */
      private GeneralNames alternativeNames;
  
      /**
       * Creates the extension object on the base of its encoded form.
       * @param which specifies which alternative names are given
       * (Subject's or Issuer's)
       */
      public AlternativeName(boolean which, byte[] encoding) throws IOException {
          super(encoding);
          this.which = which;
          this.alternativeNames = (GeneralNames) GeneralNames.ASN1.decode(encoding);
      }
  
      /**
       * Returns ASN.1 encoded form of this X.509 AlternativeName value.
       */
      @Override public byte[] getEncoded() {
          if (encoding == null) {
              encoding = GeneralNames.ASN1.encode(alternativeNames);
          }
          return encoding;
      }
  
      @Override public void dumpValue(StringBuilder sb, String prefix) {
          sb.append(prefix).append((which) ? "Subject" : "Issuer").append(" Alternative Names [\n");
          alternativeNames.dumpValue(sb, prefix + "  ");
          sb.append(prefix).append("]\n");
      }
  }
  