org.bouncycastle.asn1.BERSequenceGenerator Maven / Gradle / Ivy
package org.bouncycastle.asn1;
import java.io.IOException;
import java.io.OutputStream;
/**
* A stream generator for DER SEQUENCEs
*/
public class BERSequenceGenerator
extends BERGenerator
{
/**
* Use the passed in stream as the target for the generator, writing out the header tag
* for a constructed SEQUENCE.
*
* @param out target stream
* @throws IOException if the target stream cannot be written to.
*/
public BERSequenceGenerator(
OutputStream out)
throws IOException
{
super(out);
writeBERHeader(BERTags.CONSTRUCTED | BERTags.SEQUENCE);
}
/**
* Use the passed in stream as the target for the generator, writing out the header tag
* for a tagged constructed SEQUENCE (possibly implicit).
*
* @param out target stream
* @param tagNo the tag number to introduce
* @param isExplicit true if this is an explicitly tagged object, false otherwise.
* @throws IOException if the target stream cannot be written to.
*/
public BERSequenceGenerator(
OutputStream out,
int tagNo,
boolean isExplicit)
throws IOException
{
super(out, tagNo, isExplicit);
writeBERHeader(BERTags.CONSTRUCTED | BERTags.SEQUENCE);
}
/**
* Add an object to the SEQUENCE being generated.
*
* @param object an ASN.1 encodable object to add.
* @throws IOException if the target stream cannot be written to or the object cannot be encoded.
*/
public void addObject(
ASN1Encodable object)
throws IOException
{
object.toASN1Primitive().encodeTo(_out);
}
/**
* Close of the generator, writing out the BER end tag.
*
* @throws IOException if the target stream cannot be written.
*/
public void close()
throws IOException
{
writeBEREnd();
}
}