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Sourcecode: libgnucrypto-java version File versions  Download package

DERT61String.java

/*
 * Copyright (c) 2000 The Legion Of The Bouncy Castle
 * (http://www.bouncycastle.org)
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 * 
 */

package org.bouncycastle.asn1;

import java.io.*;

/**
 * DER T61String (also the teletex string)
 */
00034 public class DERT61String
    extends DERObject
    implements DERString
{
    String  string;

    /**
     * return a T61 string from the passed in object.
     *
     * @exception IllegalArgumentException if the object cannot be converted.
     */
00045     public static DERT61String getInstance(
        Object  obj)
    {
        if (obj == null || obj instanceof DERT61String)
        {
            return (DERT61String)obj;
        }

        if (obj instanceof ASN1OctetString)
        {
            return new DERT61String(((ASN1OctetString)obj).getOctets());
        }

        if (obj instanceof ASN1TaggedObject)
        {
            return getInstance(((ASN1TaggedObject)obj).getObject());
        }

        throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
    }

    /**
     * return an T61 String 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.
     */
00075     public static DERT61String getInstance(
        ASN1TaggedObject obj,
        boolean          explicit)
    {
        return getInstance(obj.getObject());
    }

    /**
     * basic constructor - with bytes.
     */
00085     public DERT61String(
        byte[]   string)
    {
        this.string = new String(string);
    }

    /**
     * basic constructor - with string.
     */
00094     public DERT61String(
        String   string)
    {
        this.string = string;
    }

    public String getString()
    {
        return string;
    }

    void encode(
        DEROutputStream  out)
        throws IOException
    {
        out.writeEncoded(T61_STRING, string.getBytes());
    }

    public boolean equals(
        Object  o)
    {
        if ((o == null) || !(o instanceof DERT61String))
        {
            return false;
        }

        return this.getString().equals(((DERT61String)o).getString());
    }
}

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