asn1taggedobject.java

进行与数字证书相关开发必须的java源码

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   ASN1TaggedObject.java

package jit.asn1;

import java.io.IOException;

// Referenced classes of package jit.asn1:
//            DERObject, DEREncodable, DEROutputStream

public abstract class ASN1TaggedObject extends DERObject
{

    int tagNo;
    boolean empty;
    boolean explicit;
    DEREncodable obj;

    public static ASN1TaggedObject getInstance(ASN1TaggedObject obj, boolean explicit)
    {
        if(explicit)
            return (ASN1TaggedObject)obj.getObject();
        else
            throw new IllegalArgumentException("implicitly tagged tagged object");
    }

    public ASN1TaggedObject(int tagNo, DEREncodable obj)
    {
        empty = false;
        explicit = true;
        this.obj = null;
        explicit = true;
        this.tagNo = tagNo;
        this.obj = obj;
    }

    public ASN1TaggedObject(boolean explicit, int tagNo, DEREncodable obj)
    {
        empty = false;
        this.explicit = true;
        this.obj = null;
        this.explicit = explicit;
        this.tagNo = tagNo;
        this.obj = obj;
    }

    public boolean equals(Object o)
    {
        if(o == null || !(o instanceof ASN1TaggedObject))
            return false;
        ASN1TaggedObject other = (ASN1TaggedObject)o;
        if(tagNo != other.tagNo || empty != other.empty || explicit != other.explicit)
            return false;
        if(obj == null)
        {
            if(other.obj != null)
                return false;
        } else
        if(!obj.equals(other.obj))
            return false;
        return true;
    }

    public int hashCode()
    {
        int code = tagNo;
        if(obj != null)
            code ^= obj.hashCode();
        return code;
    }

    public int getTagNo()
    {
        return tagNo;
    }

    public boolean isExplicit()
    {
        return explicit;
    }

    public boolean isEmpty()
    {
        return empty;
    }

    public DERObject getObject()
    {
        if(obj != null)
            return obj.getDERObject();
        else
            return null;
    }

    abstract void encode(DEROutputStream deroutputstream)
        throws IOException;
}