Windows Pathing Issues in the Workflow-Standalone Example

[haydar-metin]

The server can not open the example1.wf file in the Workflow-Standalone Example on Windows:

Log:

// yarn start:exampleServer
...
15:41:15 error -  [WorkflowGLSPServer] Could not process action: 'requestModel
15:41:15 error -  [WorkflowGLSPServer] Error: Could not load model from file: /C:/Users/.../glsp-client/examples/workflow-standalone/app/example1.wf

It works again after removing the / in the examplePath used in https://github.com/eclipse-glsp/glsp-client/blob/master/examples/workflow-standalone/src/app.ts#L37 by hardcoding the URI in https://github.com/eclipse-glsp/glsp-client/blob/master/examples/workflow-standalone/src/app.ts#L49:

container = createContainer({ clientId, diagramType, glspClientProvider: async () => glspClient, sourceUri: 'C:/Users/.../glsp-client/examples/workflow-standalone/app/example1.wf' });

OS: Windows 10
Node: 16.19.1

[planger]

Thanks for reporting this issue! It would also be interesting to know, if this only happens with the node-based server or also with the Java-based server.

[tortmayr]

Tested this, and the issue only appears with the node implementation. In the Java variant we convert the received url into a new File object. This seems to take care of proper path conversion (i.e. removal of leading slashes under Windows).
For the node-serer we don't have the same functionality. We use the fileUrlToPath` utility function, but that does not consider leading slashes. So we have to handle them manually.