/* * 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. */ /** * @author Alexander Y. Kleymenov * @version $Revision$ */ package org.apache.harmony.security.x509; import java.util.ArrayList; import java.util.Collection; 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 GeneralNames structure which is a part of X.509 certificate * (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): * * *
 *   GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
 * 
* * @see org.apache.harmony.security.x509.NameConstraints * @see org.apache.harmony.security.x509.GeneralSubtree */ public final class GeneralNames { /** the values of GeneralName */ private List generalNames; /** the ASN.1 encoded form of GeneralNames */ private byte[] encoding; public GeneralNames() { generalNames = new ArrayList(); } public GeneralNames(List generalNames) { this.generalNames = generalNames; } private GeneralNames(List generalNames, byte[] encoding) { this.generalNames = generalNames; this.encoding = encoding; } /** * Returns the list of values. */ public List getNames() { if ((generalNames == null) || (generalNames.size() == 0)) { return null; } return new ArrayList(generalNames); } /** * Returns the collection of pairs: (Integer (tag), Object (name value))* */ public Collection> getPairsList() { Collection> result = new ArrayList>(); if (generalNames == null) { return result; } for (GeneralName generalName : generalNames) { /* * If we have an error decoding one of the GeneralNames, we'll just * omit it from the final list. */ final List genNameList; try { genNameList = generalName.getAsList(); } catch (IllegalArgumentException ignored) { continue; } result.add(genNameList); } return result; } public void addName(GeneralName name) { encoding = null; if (generalNames == null) { generalNames = new ArrayList(); } generalNames.add(name); } /** * Returns ASN.1 encoded form of this X.509 GeneralNames value. */ public byte[] getEncoded() { if (encoding == null) { encoding = ASN1.encode(this); } return encoding; } public void dumpValue(StringBuilder sb, String prefix) { if (generalNames == null) { return; } for (GeneralName generalName : generalNames) { sb.append(prefix); sb.append(generalName); sb.append('\n'); } } /** * ASN.1 DER X.509 GeneralNames encoder/decoder class. */ public static final ASN1Type ASN1 = new ASN1SequenceOf(GeneralName.ASN1) { @Override public Object getDecodedObject(BerInputStream in) { return new GeneralNames((List) in.content, in.getEncoded()); } @Override public Collection getValues(Object object) { GeneralNames gns = (GeneralNames) object; return gns.generalNames; } }; }