/**
* Constructor from ASN1Sequence.
*
* <p>The sequence is of type ProcurationSyntax:
*
* <p>
*
* <pre>
* ProcurationSyntax ::= SEQUENCE {
* country [1] EXPLICIT PrintableString(SIZE(2)) OPTIONAL,
* typeOfSubstitution [2] EXPLICIT DirectoryString (SIZE(1..128)) OPTIONAL,
* signingFor [3] EXPLICIT SigningFor
* }
*
* SigningFor ::= CHOICE
* {
* thirdPerson GeneralName,
* certRef IssuerSerial
* }
* </pre>
*
* @param seq The ASN.1 sequence.
*/
private ProcurationSyntax(ASN1Sequence seq) {
if (seq.size() < 1 || seq.size() > 3) {
throw new IllegalArgumentException("Bad sequence size: " + seq.size());
}
Enumeration e = seq.getObjects();
while (e.hasMoreElements()) {
ASN1TaggedObject o = ASN1TaggedObject.getInstance(e.nextElement());
switch (o.getTagNo()) {
case 1:
country = DERPrintableString.getInstance(o, true).getString();
break;
case 2:
typeOfSubstitution = DirectoryString.getInstance(o, true);
break;
case 3:
DEREncodable signingFor = o.getObject();
if (signingFor instanceof ASN1TaggedObject) {
thirdPerson = GeneralName.getInstance(signingFor);
} else {
certRef = IssuerSerial.getInstance(signingFor);
}
break;
default:
throw new IllegalArgumentException("Bad tag number: " + o.getTagNo());
}
}
}
