Error MessageHandlerManager is null in ScriptConfig!

Module Development
,
1

I have a module with a ProjectListener.
on Project update I send a gateway message handled by a gateway script message handler

@Override
public void projectUpdated(String project) {
	if (enabled && filterProjectUpdated) {
		logger.debug("projectUpdated : {}",project);
		if (passFiterProjectNames(project)){
			notifyGateway(project,"projectUpdated");
		}
	}
}

private void notifyGateway(String project,String cause){
	try {
		synchronized(this) {
			String resultGatewayMessageProjectName;

			if (shutdownPending) {
				return;
			}

			if (projectListenerUseGatewayScriptingProject) {
				resultGatewayMessageProjectName = context.getSystemProperties().getGatewayScriptingProject();
			} else {
				if (gatewayMessageProjectName == null) {
					gatewayMessageProjectName = "";
				}
				resultGatewayMessageProjectName = gatewayMessageProjectName;
			}
			if (gatewayMessageHandler == null) {
				gatewayMessageHandler = "";
			}
			if (gatewayMessageHandler.isEmpty()) {
				logger.warn("notifyGateway() - Gateway Notification Enabled but Gateway Message Handler is not provided !");
			} else if (resultGatewayMessageProjectName.isEmpty()) {
				logger.warn("notifyGateway() - Gateway Notification Enabled but Gateway Project Name is not provided !");
			} else {
				PyDictionary messagePayload = new PyDictionary();
				messagePayload.put(new PyString("project"), project);
				messagePayload.put(new PyString("cause"), cause);
				Properties filterParams = new Properties();
				filterParams.setProperty(MessageDispatchManager.KEY_SCOPE, MessageDispatchManager.SCOPE_GATEWAY_ONLY);
				logger.debug("notifyGateway() - Gateway Notification : projectName={}, gatewayMessageHandler={}, messagePayload={}",
						resultGatewayMessageProjectName, gatewayMessageHandler, messagePayload);
				context.getMessageDispatchManager().dispatch(resultGatewayMessageProjectName, gatewayMessageHandler, messagePayload, filterParams);
			}
		}
	} catch (Exception e) {
		logger.error("notifyGateway() - exception : ", e);
	}
}

when I import a project (containing the script executed by the gateway message handler)
I've sometimes have the following error, and as a side effect it seems that all tags expression with runscript are broken...and I need to restart the gateway

image
image1255×440 31.4 KB

2

You are racing with the Project Script Manager, which also listens for project changes in order to restart script modules. You simply should not be generating this message. A project script can tell when its underlying project starts up by implementing a startup event. That will always fire in a non-racy way.

Some things are not meant to be done by SDK modules.

3

I Believe that the startup script was fired each time some change are saved in scripts.
I want to process only on project import.
Perhaps I could add a delay before sending the gateway message. Not a good way to make some synchonization but a workaround...

4

How are you determining this? Diving into project change diffs?

5

I import a global common project inherited by another one, and according to some settings (features activated or not) I delete unusefull code.py files and run a project rescan.