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/* 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 jcifs.spnego.asn1;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Enumeration;
public class DERSequence
extends ASN1Sequence
{
/**
* create an empty sequence
*/
public DERSequence()
{
}
/**
* create a sequence containing one object
*/
public DERSequence(
DEREncodable obj)
{
this.addObject(obj);
}
/**
* create a sequence containing a vector of objects.
*/
public DERSequence(
DEREncodableVector v)
{
for (int i = 0; i != v.size(); i++)
{
this.addObject(v.get(i));
}
}
/*
* A note on the implementation:
*
* As DER requires the constructed, definite-length model to
* be used for structured types, this varies slightly from the
* ASN.1 descriptions given. Rather than just outputing SEQUENCE,
* we also have to specify CONSTRUCTED, and the objects length.
*/
void encode(
DEROutputStream out)
throws IOException
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
Enumeration e = this.getObjects();
while (e.hasMoreElements())
{
Object obj = e.nextElement();
dOut.writeObject(obj);
}
dOut.close();
byte[] bytes = bOut.toByteArray();
out.writeEncoded(SEQUENCE | CONSTRUCTED, bytes);
}
}