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package com.lowagie.bc.asn1;
import java.io.IOException;
/**
* DER T61String (also the teletex string)
*/
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.
*/
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.
*/
public static DERT61String getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(obj.getObject());
}
/**
* basic constructor - with bytes.
*/
public DERT61String(
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);
}
/**
* basic constructor - with string.
*/
public DERT61String(
String string)
{
this.string = string;
}
public String getString()
{
return string;
}
void encode(
DEROutputStream out)
throws IOException
{
out.writeEncoded(T61_STRING, this.getOctets());
}
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;
}
public boolean equals(
Object o)
{
if ((o == null) || !(o instanceof DERT61String))
{
return false;
}
return this.getString().equals(((DERT61String)o).getString());
}
}
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