| /** |
| * 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 org.apache.kerby.asn1.type; |
| |
| import org.apache.kerby.asn1.Tag; |
| import org.apache.kerby.asn1.UniversalTag; |
| |
| /** |
| * ASN1 complex type of multiple ASN1 objects. |
| */ |
| public class Asn1Collection extends Asn1Constructed { |
| |
| public Asn1Collection(UniversalTag universalTag) { |
| super(new Tag(universalTag)); |
| } |
| |
| public static boolean isCollection(Tag tag) { |
| return isCollection(tag.universalTag()); |
| } |
| |
| public static boolean isCollection(int tag) { |
| return isCollection(new Tag(tag)); |
| } |
| |
| public static boolean isCollection(UniversalTag universalTag) { |
| switch (universalTag) { |
| case SEQUENCE: |
| case SEQUENCE_OF: |
| case SET: |
| case SET_OF: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| public static Asn1Collection createCollection(Tag tag) { |
| if (!isCollection(tag)) { |
| throw new IllegalArgumentException("Not collection type, tag: " + tag); |
| } |
| return createCollection(tag.universalTag()); |
| } |
| |
| public static Asn1Collection createCollection(UniversalTag universalTag) { |
| if (!isCollection(universalTag)) { |
| throw new IllegalArgumentException("Not collection type, tag: " + universalTag); |
| } |
| |
| switch (universalTag) { |
| case SEQUENCE: |
| return new Asn1Sequence(); |
| case SEQUENCE_OF: |
| return new Asn1Sequence(); |
| case SET: |
| return new Asn1Set(); |
| case SET_OF: |
| return new Asn1Set(); |
| default: |
| throw new IllegalArgumentException("Unexpected tag " + universalTag.getValue()); |
| } |
| } |
| } |