| /** |
| * 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.UniversalTag; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * The Asn1 Null type |
| */ |
| public final class Asn1Null extends Asn1Simple<Object> { |
| public static final Asn1Null INSTANCE = new Asn1Null(); |
| private static final byte[] EMPTY_BYTES = new byte[0]; |
| |
| private Asn1Null() { |
| super(UniversalTag.NULL, null); |
| } |
| |
| @Override |
| protected byte[] encodeBody() { |
| return EMPTY_BYTES; |
| } |
| |
| @Override |
| protected int encodingBodyLength() { |
| return 0; |
| } |
| |
| @Override |
| protected void decodeBody(ByteBuffer content) throws IOException { |
| if (content.remaining() != 0) { |
| throw new IOException("Unexpected bytes found for NULL"); |
| } |
| } |
| } |