package org.apache.commons.ssl.asn1;
import java.io.IOException;
import java.util.Enumeration;
/**
* BER TaggedObject - in ASN.1 nottation this is any object proceeded by
* a [n] where n is some number - these are assume to follow the construction
* rules (as with sequences).
*/
public class BERTaggedObject
extends DERTaggedObject {
/**
* @param tagNo the tag number for this object.
* @param obj the tagged object.
*/
public BERTaggedObject(
int tagNo,
DEREncodable obj) {
super(tagNo, obj);
}
/**
* @param explicit true if an explicitly tagged object.
* @param tagNo the tag number for this object.
* @param obj the tagged object.
*/
public BERTaggedObject(
boolean explicit,
int tagNo,
DEREncodable obj) {
super(explicit, tagNo, obj);
}
/**
* create an implicitly tagged object that contains a zero
* length sequence.
*/
public BERTaggedObject(
int tagNo) {
super(false, tagNo, new BERSequence());
}
void encode(
DEROutputStream out)
throws IOException {
if (out instanceof ASN1OutputStream || out instanceof BEROutputStream) {
out.write(CONSTRUCTED | TAGGED | tagNo);
out.write(0x80);
if (!empty) {
if (!explicit) {
if (obj instanceof ASN1OctetString) {
Enumeration e;
if (obj instanceof BERConstructedOctetString) {
e = ((BERConstructedOctetString) obj).getObjects();
} else {
ASN1OctetString octs = (ASN1OctetString) obj;
BERConstructedOctetString berO = new BERConstructedOctetString(octs.getOctets());
e = berO.getObjects();
}
while (e.hasMoreElements()) {
out.writeObject(e.nextElement());
}
} else if (obj instanceof ASN1Sequence) {
Enumeration e = ((ASN1Sequence) obj).getObjects();
while (e.hasMoreElements()) {
out.writeObject(e.nextElement());
}
} else if (obj instanceof ASN1Set) {
Enumeration e = ((ASN1Set) obj).getObjects();
while (e.hasMoreElements()) {
out.writeObject(e.nextElement());
}
} else {
throw new RuntimeException("not implemented: " + obj.getClass().getName());
}
} else {
out.writeObject(obj);
}
}
out.write(0x00);
out.write(0x00);
} else {
super.encode(out);
}
}
}