/*
* 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.
*/
/*
* Imported by CG 20090321 based on Apache Harmony ("enhanced") revision 490473.
*/
package org.apache.harmony.security.x509;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.apache.harmony.security.asn1.ASN1SequenceOf;
import org.apache.harmony.security.asn1.ASN1Type;
import org.apache.harmony.security.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 class InfoAccessSyntax extends ExtensionValue {
private final List accessDescriptions;
public InfoAccessSyntax(List accessDescriptions) throws IOException {
this(accessDescriptions, null);
}
private InfoAccessSyntax(List accessDescriptions, byte[] encoding)
throws IOException {
if (accessDescriptions == null || accessDescriptions.isEmpty()) {
// "AccessDescriptions list is null or empty"
throw new IOException("AccessDescriptions list is null or empty");
}
this.accessDescriptions = accessDescriptions;
this.encoding = encoding;
}
public List getAccessDescriptions() {
return new ArrayList(accessDescriptions);
}
/**
* Returns ASN.1 encoded form of this X.509 InfoAccessSyntax.
* @return a byte array containing ASN.1 encoded form.
*/
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));
}
public String toString() {
StringBuffer res = new StringBuffer();
res.append("\n---- InfoAccessSyntax:"); //$NON-NLS-1$
if (accessDescriptions != null) {
for (Iterator it = accessDescriptions.iterator(); it.hasNext();) {
res.append('\n');
res.append(it.next());
}
}
res.append("\n---- InfoAccessSyntax END\n"); //$NON-NLS-1$
return res.toString();
}
/**
* Places the string representation of extension value
* into the StringBuffer object.
*/
public void dumpValue(StringBuffer buffer, String prefix) {
buffer.append(prefix).append("AccessDescriptions:\n"); //$NON-NLS-1$
if (accessDescriptions == null || accessDescriptions.isEmpty()) {
buffer.append("NULL\n"); //$NON-NLS-1$
} else {
Iterator itr = accessDescriptions.iterator();
while (itr.hasNext()) {
buffer.append(itr.next().toString());
}
}
}
/**
* ASN.1 DER X.509 AuthorityInfoAccessSyntax and SubjectInfoAccessSyntax
* encoder/decoder class.
*/
public static final ASN1Type ASN1 = new ASN1SequenceOf(AccessDescription.ASN1) {
public Object getDecodedObject(BerInputStream in) throws IOException {
return new InfoAccessSyntax((List)in.content, in.getEncoded());
}
public Collection getValues(Object object) {
InfoAccessSyntax aias = (InfoAccessSyntax) object;
return aias.accessDescriptions;
}
};
}