/**
* Decodes the provided ASN.1 element as a status request message.
*
* @param messageID The message ID to use for this message.
* @param element The ASN.1 element containing the StatusRequest sequence.
* @return The status request message decoded from the ASN.1 element.
* @throws SLAMDException If the provided ASN.1 element cannot be decoded as a status request
* message.
*/
public static StatusRequestMessage decodeStatusRequest(int messageID, ASN1Element element)
throws SLAMDException {
ASN1Sequence requestSequence = null;
try {
requestSequence = element.decodeAsSequence();
} catch (ASN1Exception ae) {
throw new SLAMDException(
"Could not decode the provided ASN.1 element " + "as a sequence", ae);
}
ASN1Element[] elements = requestSequence.getElements();
if (elements.length == 0) {
return new StatusRequestMessage(messageID);
} else if (elements.length != 1) {
throw new SLAMDException("A status request may have at most one element");
}
String jobID = null;
try {
jobID = elements[0].decodeAsOctetString().getStringValue();
} catch (ASN1Exception ae) {
throw new SLAMDException("Could not decode the first element as an " + "octet string", ae);
}
return new StatusRequestMessage(messageID, jobID);
}
/**
* Decodes the provided ASN.1 element as a stop client response message.
*
* @param messageID The message ID to use for this message.
* @param element The ASN.1 element containing the StopClientResponse sequence.
* @return The stop client response message decoded from the ASN.1 element.
* @throws SLAMDException If the provided ASN.1 element cannot be decoded as a stop client
* response message.
*/
public static StopClientResponseMessage decodeStopClientResponse(
int messageID, ASN1Element element) throws SLAMDException {
ASN1Sequence responseSequence = null;
try {
responseSequence = element.decodeAsSequence();
} catch (ASN1Exception ae) {
throw new SLAMDException("Could not decode ASN.1 element as a sequence", ae);
}
ASN1Element[] elements = responseSequence.getElements();
if (elements.length != 2) {
throw new SLAMDException("A stop client response message must have " + "two elements");
}
int responseCode = 0;
try {
responseCode = elements[0].decodeAsInteger().getIntValue();
} catch (ASN1Exception ae) {
throw new SLAMDException("Could not decode the first element as an " + "integer", ae);
}
String responseMessage = null;
try {
responseMessage = elements[1].decodeAsOctetString().getStringValue();
} catch (ASN1Exception ae) {
throw new SLAMDException("Could not decode the second element as an " + "octet string", ae);
}
return new StopClientResponseMessage(messageID, responseCode, responseMessage);
}
/**
* Encodes this message into an ASN.1 element. A status request message has the following syntax:
* <br>
* <br>
* <CODE>StatusRequest ::= [APPLICATION 8] SEQUENCE {</CODE> <CODE>
* jobID OCTET STRING OPTIONAL }</CODE> <br>
*
* @return An ASN.1 encoded representation of this message.
*/
@Override()
public ASN1Element encode() {
ASN1Integer messageIDElement = new ASN1Integer(messageID);
ASN1Sequence statusRequestSequence = new ASN1Sequence(ASN1_TYPE_STATUS_REQUEST);
if (!((jobID == null) || (jobID.length() == 0))) {
statusRequestSequence.addElement(new ASN1OctetString(jobID));
}
ASN1Element[] messageElements = new ASN1Element[] {messageIDElement, statusRequestSequence};
return new ASN1Sequence(messageElements);
}