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package org.spongycastle.asn1;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Vector;
/**
* @deprecated use BEROctetString
*/
public class BERConstructedOctetString
extends BEROctetString
{
private static final int MAX_LENGTH = 1000;
/**
* convert a vector of octet strings into a single byte string
*/
static private byte[] toBytes(
Vector octs)
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
for (int i = 0; i != octs.size(); i++)
{
try
{
DEROctetString o = (DEROctetString)octs.elementAt(i);
bOut.write(o.getOctets());
}
catch (ClassCastException e)
{
throw new IllegalArgumentException(octs.elementAt(i).getClass().getName() + " found in input should only contain DEROctetString");
}
catch (IOException e)
{
throw new IllegalArgumentException("exception converting octets " + e.toString());
}
}
return bOut.toByteArray();
}
private Vector octs;
/**
* @param string the octets making up the octet string.
*/
public BERConstructedOctetString(
byte[] string)
{
super(string);
}
public BERConstructedOctetString(
Vector octs)
{
super(toBytes(octs));
this.octs = octs;
}
public BERConstructedOctetString(
ASN1Primitive obj)
{
super(toByteArray(obj));
}
private static byte[] toByteArray(ASN1Primitive obj)
{
try
{
return obj.getEncoded();
}
catch (IOException e)
{
throw new IllegalArgumentException("Unable to encode object");
}
}
public BERConstructedOctetString(
ASN1Encodable obj)
{
this(obj.toASN1Primitive());
}
public byte[] getOctets()
{
return string;
}
/**
* return the DER octets that make up this string.
*/
public Enumeration getObjects()
{
if (octs == null)
{
return generateOcts().elements();
}
return octs.elements();
}
private Vector generateOcts()
{
Vector vec = new Vector();
for (int i = 0; i < string.length; i += MAX_LENGTH)
{
int end;
if (i + MAX_LENGTH > string.length)
{
end = string.length;
}
else
{
end = i + MAX_LENGTH;
}
byte[] nStr = new byte[end - i];
System.arraycopy(string, i, nStr, 0, nStr.length);
vec.addElement(new DEROctetString(nStr));
}
return vec;
}
public static BEROctetString fromSequence(ASN1Sequence seq)
{
Vector v = new Vector();
Enumeration e = seq.getObjects();
while (e.hasMoreElements())
{
v.addElement(e.nextElement());
}
return new BERConstructedOctetString(v);
}
}
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