derboolean.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   DERBoolean.java

package org.bouncycastle.asn1;

import java.io.IOException;

// Referenced classes of package org.bouncycastle.asn1:
//			ASN1Object, ASN1OctetString, ASN1TaggedObject, DEROutputStream, 
//			DERObject

public class DERBoolean extends ASN1Object
{

	byte value;
	public static final DERBoolean FALSE = new DERBoolean(false);
	public static final DERBoolean TRUE = new DERBoolean(true);

	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());
		else
			throw new IllegalArgumentException((new StringBuilder()).append("illegal object in getInstance: ").append(obj.getClass().getName()).toString());
	}

	public static DERBoolean getInstance(boolean value)
	{
		return value ? TRUE : FALSE;
	}

	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 = ((byte)(value ? -1 : 0));
	}

	public boolean isTrue()
	{
		return value != 0;
	}

	void encode(DEROutputStream out)
		throws IOException
	{
		byte bytes[] = new byte[1];
		bytes[0] = value;
		out.writeEncoded(1, bytes);
	}

	protected boolean asn1Equals(DERObject o)
	{
		if (o == null || !(o instanceof DERBoolean))
			return false;
		else
			return value == ((DERBoolean)o).value;
	}

	public int hashCode()
	{
		return value;
	}

	public String toString()
	{
		return value == 0 ? "FALSE" : "TRUE";
	}

}