| /* |
| * 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 Vladimir N. Molotkov, Stepan M. Mishura |
| * @version $Revision$ |
| */ |
| |
| package org.apache.harmony.security.asn1; |
| |
| import java.io.IOException; |
| |
| |
| /** |
| * This class represents ASN.1 Boolean type. |
| * |
| * @see <a href="http://asn1.elibel.tm.fr/en/standards/index.htm">ASN.1</a> |
| */ |
| public final class ASN1Boolean extends ASN1Primitive { |
| |
| /** default implementation */ |
| private static final ASN1Boolean ASN1 = new ASN1Boolean(); |
| |
| /** |
| * Constructs ASN.1 Boolean type |
| * |
| * The constructor is provided for inheritance purposes |
| * when there is a need to create a custom ASN.1 Boolean type. |
| * To get a default implementation it is recommended to use |
| * getInstance() method. |
| */ |
| public ASN1Boolean() { |
| super(TAG_BOOLEAN); |
| } |
| |
| /** |
| * Returns ASN.1 Boolean type default implementation |
| * |
| * The default implementation works with encoding |
| * that is represented as Boolean object. |
| * |
| * @return ASN.1 Boolean type default implementation |
| */ |
| public static ASN1Boolean getInstance() { |
| return ASN1; |
| } |
| |
| public Object decode(BerInputStream in) throws IOException { |
| in.readBoolean(); |
| |
| if (in.isVerify) { |
| return null; |
| } |
| return getDecodedObject(in); |
| } |
| |
| /** |
| * Extracts Boolean object from BER input stream. |
| * |
| * @param in - BER input stream |
| * @return java.lang.Boolean object |
| */ |
| @Override public Object getDecodedObject(BerInputStream in) throws IOException { |
| if (in.buffer[in.contentOffset] == 0) { |
| return Boolean.FALSE; |
| } |
| return Boolean.TRUE; |
| } |
| |
| public void encodeContent(BerOutputStream out) { |
| out.encodeBoolean(); |
| } |
| |
| public void setEncodingContent(BerOutputStream out) { |
| out.length = 1; |
| } |
| } |