DERBoolean.java
资源名称:security.rar [点击查看]
上传用户:lior1029
上传日期:2013-05-07
资源大小:209k
文件大小:2k
源码类别:
CA认证
开发平台:
Java
- package org.bouncycastle.asn1;
- import java.io.*;
- public class DERBoolean
- extends DERObject
- {
- byte value;
- public static final DERBoolean FALSE = new DERBoolean(false);
- public static final DERBoolean TRUE = new DERBoolean(true);
- /**
- * return a boolean from the passed in object.
- *
- * @exception IllegalArgumentException if the object cannot be converted.
- */
- public static DERBoolean getInstance(
- Object obj)
- {
- if (obj == null || obj instanceof DERBoolean)
- {
- return (DERBoolean)obj;
- }
- if (obj instanceof ASN1OctetString)
- {
- return new DERBoolean(((ASN1OctetString)obj).getOctets());
- }
- if (obj instanceof ASN1TaggedObject)
- {
- return getInstance(((ASN1TaggedObject)obj).getObject());
- }
- throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
- }
- /**
- * return a DERBoolean from the passed in boolean.
- */
- public static DERBoolean getInstance(
- boolean value)
- {
- return (value ? TRUE : FALSE);
- }
- /**
- * return a Boolean from a tagged object.
- *
- * @param obj the tagged object holding the object we want
- * @param explicit true if the object is meant to be explicitly
- * tagged false otherwise.
- * @exception IllegalArgumentException if the tagged object cannot
- * be converted.
- */
- public static DERBoolean getInstance(
- ASN1TaggedObject obj,
- boolean explicit)
- {
- return getInstance(obj.getObject());
- }
- public DERBoolean(
- byte[] value)
- {
- this.value = value[0];
- }
- public DERBoolean(
- boolean value)
- {
- this.value = (value) ? (byte)0xff : (byte)0;
- }
- public boolean isTrue()
- {
- return (value != 0);
- }
- void encode(
- DEROutputStream out)
- throws IOException
- {
- byte[] bytes = new byte[1];
- bytes[0] = value;
- out.writeEncoded(BOOLEAN, bytes);
- }
- public boolean equals(
- Object o)
- {
- if ((o == null) || !(o instanceof DERBoolean))
- {
- return false;
- }
- return (value == ((DERBoolean)o).value);
- }
- }