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;
  import java.util.Collection;
  import java.util.List;
  import android.framework.org.apache.harmony.security_custom.asn1.ASN1SequenceOf;
  import android.framework.org.apache.harmony.security_custom.asn1.ASN1Type;
  import android.framework.org.apache.harmony.security_custom.asn1.BerInputStream;
  
  /**
   * The class encapsulates the ASN.1 DER encoding/decoding work
   * with the SubjectInfoAccessSyntax and AuthorityInfoAccessSyntax
   * which are a part of X.509 framework
   * (as specified in RFC 3280 -
   *  Internet X.509 Public Key Infrastructure.
   *  Certificate and Certificate Revocation List (CRL) Profile.
   *  http://www.ietf.org/rfc/rfc3280.txt):
   *
   *  SubjectInfoAccessSyntax  ::=
   *      SEQUENCE SIZE (1..MAX) OF AccessDescriptions
  
   *  AuthorityInfoAccessSyntax  ::=
   *      SEQUENCE SIZE (1..MAX) OF AccessDescriptions
   *
   *  AccessDescription  ::=  SEQUENCE {
   *      accessMethod          OBJECT IDENTIFIER,
   *      accessLocation        GeneralName  }
   *
   */
  public final class InfoAccessSyntax extends ExtensionValue {
      private final List<?> accessDescriptions;
  
      private InfoAccessSyntax(List<?> accessDescriptions, byte[] encoding) throws IOException {
          if (accessDescriptions == null || accessDescriptions.isEmpty()) {
              throw new IOException("AccessDescriptions list is null or empty");
          }
          this.accessDescriptions = accessDescriptions;
          this.encoding = encoding;
      }
  
      /**
       * Returns ASN.1 encoded form of this X.509 InfoAccessSyntax.
       */
      @Override public byte[] getEncoded() {
          if (encoding == null) {
              encoding = ASN1.encode(this);
          }
          return encoding;
      }
  
      public static InfoAccessSyntax decode(byte[] encoding) throws IOException {
          return ((InfoAccessSyntax) ASN1.decode(encoding));
      }
  
      @Override public String toString() {
          StringBuilder res = new StringBuilder();
          res.append("\n---- InfoAccessSyntax:");
          if (accessDescriptions != null) {
              for (Object accessDescription : accessDescriptions) {
                  res.append('\n');
                  res.append(accessDescription);
              }
          }
          res.append("\n---- InfoAccessSyntax END\n");
          return res.toString();
      }
  
      @Override public void dumpValue(StringBuilder sb, String prefix) {
          sb.append(prefix).append("AccessDescriptions:\n");
          if (accessDescriptions == null || accessDescriptions.isEmpty()) {
              sb.append("NULL\n");
          } else {
              for (Object accessDescription : accessDescriptions) {
                  sb.append(accessDescription.toString());
              }
          }
      }
  
  
      /**
       * ASN.1 DER X.509 AuthorityInfoAccessSyntax and SubjectInfoAccessSyntax
       * encoder/decoder class.
       */
      public static final ASN1Type ASN1 = new ASN1SequenceOf(AccessDescription.ASN1) {
          @Override public Object getDecodedObject(BerInputStream in) throws IOException {
              return new InfoAccessSyntax((List<?>) in.content, in.getEncoded());
          }
  
          @Override public Collection getValues(Object object) {
              return ((InfoAccessSyntax) object).accessDescriptions;
          }
      };
  
  }
  