}
catch (XMPPException e) {
// If there is an exception caused by the next, complete,
// prev or cancel method, then that error is returned to the
// requester.
XMPPError error = e.getXMPPError();
// If the error type is cancel, then the execution is
// canceled therefore the status must show that, and the
// command be removed from the executing list.
if (XMPPError.Type.CANCEL.equals(error.getType())) {
response.setStatus(Status.canceled);
executingCommands.remove(sessionId);
}
respondError(response, error);
e.printStackTrace();
}
}
else {
LocalCommand command = executingCommands.get(sessionId);
// Check that a command exists for the specified sessionID
// This also handles if the command was removed in the meanwhile
// of getting the key and the value of the map.
if (command == null) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.badSessionid);
return;
}
// Check if the Session data has expired (default is 10 minutes)
long creationStamp = command.getCreationDate();
if (System.currentTimeMillis() - creationStamp > SESSION_TIMEOUT * 1000) {
// Remove the expired session
executingCommands.remove(sessionId);
// Answer a not_allowed error (session-expired)
respondError(response, XMPPError.Condition.not_allowed,
AdHocCommand.SpecificErrorCondition.sessionExpired);
return;
}
/*
* Since the requester could send two requests for the same
* executing command i.e. the same session id, all the execution of
* the action must be synchronized to avoid inconsistencies.
*/
synchronized (command) {
Action action = requestData.getAction();
// If the action is unknown the respond an error
if (action != null && action.equals(Action.unknown)) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.malformedAction);
return;
}
// If the user didn't specify an action or specify the execute
// action then follow the actual default execute action
if (action == null || Action.execute.equals(action)) {
action = command.getExecuteAction();
}
// Check that the specified action was previously
// offered
if (!command.isValidAction(action)) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.badAction);
return;
}
try {
// TODO: Check that all the requierd fields of the form are
// TODO: filled, if not throw an exception. This will simplify the
// TODO: construction of new commands
// Since all errors were passed, the response is now a
// result
response.setType(IQ.Type.RESULT);
// Set the new data to the command.
command.setData(response);
if (Action.next.equals(action)) {
command.incrementStage();
command.next(new Form(requestData.getForm()));
if (command.isLastStage()) {
// If it is the last stage then the command is
// completed
response.setStatus(Status.completed);
}
else {
// Otherwise it is still executing
response.setStatus(Status.executing);
}
}
else if (Action.complete.equals(action)) {
command.incrementStage();
command.complete(new Form(requestData.getForm()));
response.setStatus(Status.completed);
// Remove the completed session
executingCommands.remove(sessionId);
}
else if (Action.prev.equals(action)) {
command.decrementStage();
command.prev();
}
else if (Action.cancel.equals(action)) {
command.cancel();
response.setStatus(Status.canceled);
// Remove the canceled session
executingCommands.remove(sessionId);
}
connection.sendPacket(response);
}
catch (XMPPException e) {
// If there is an exception caused by the next, complete,
// prev or cancel method, then that error is returned to the
// requester.
XMPPError error = e.getXMPPError();
// If the error type is cancel, then the execution is
// canceled therefore the status must show that, and the
// command be removed from the executing list.
if (XMPPError.Type.CANCEL.equals(error.getType())) {
response.setStatus(Status.canceled);
executingCommands.remove(sessionId);
}
respondError(response, error);