dernumericstring.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:   DERNumericString.java

package jit.asn1;

import java.io.IOException;

// Referenced classes of package jit.asn1:
//            DERObject, ASN1OctetString, ASN1TaggedObject, DERString, 
//            DEROutputStream

public class DERNumericString extends DERObject
    implements DERString
{

    String string;

    public static DERNumericString getInstance(Object obj)
    {
        if(obj == null || (obj instanceof DERNumericString))
            return (DERNumericString)obj;
        if(obj instanceof ASN1OctetString)
            return new DERNumericString(((ASN1OctetString)obj).getOctets());
        if(obj instanceof ASN1TaggedObject)
            return getInstance(((ASN1TaggedObject)obj).getObject());
        else
            throw new IllegalArgumentException("illegal object in getInstance: ".concat(String.valueOf(String.valueOf(obj.getClass().getName()))));
    }

    public static DERNumericString getInstance(ASN1TaggedObject obj, boolean explicit)
    {
        return getInstance(obj.getObject());
    }

    public DERNumericString(byte string[])
    {
        char cs[] = new char[string.length];
        for(int i = 0; i != cs.length; i++)
            cs[i] = (char)(string[i] & 0xff);

        this.string = new String(cs);
    }

    public DERNumericString(String string)
    {
        this.string = string;
    }

    public String getString()
    {
        return string;
    }

    public byte[] getOctets()
    {
        char cs[] = string.toCharArray();
        byte bs[] = new byte[cs.length];
        for(int i = 0; i != cs.length; i++)
            bs[i] = (byte)cs[i];

        return bs;
    }

    void encode(DEROutputStream out)
        throws IOException
    {
        out.writeEncoded(18, getOctets());
    }

    public int hashCode()
    {
        return getString().hashCode();
    }

    public boolean equals(Object o)
    {
        if(!(o instanceof DERNumericString))
        {
            return false;
        } else
        {
            DERNumericString s = (DERNumericString)o;
            return getString().equals(s.getString());
        }
    }
}