Can Dict key be an integer?

[apella12]

Background : I'm probably over my head with my limited skills, but as a proof of concept I have been looking at using Zwave-js-ui as a third-party connection to OpenHAB (Home Automation) as an alternative ZWave provider using an MQTT broker. OpenHAB uses jinjava to "unwrap" the MQTT messages from Zwave-js-ui. Most work fine, but one type uses the zwave hexadecimal converted to an integer as a filter and springs an error. It must work in Home Assistant, but that is a javascript application.

Details:

1. Message: {"value_template":"{{ {22: \"Window/door is open\",23: \"Window/door is closed\",5632: \"Window/door is open in regular position\",5633: \"Window/door is open in tilt position\"}[value_json.value] | default(value_json.value) }}","icon":"mdi:alarm-light","state_topic":"zwave/nodeID_10/113/0/Access_Control/Door_state","json_attributes_topic":"zwave/nodeID_10/113/0/Access_Control/Door_state","device":{"identifiers":["zwavejs2mqtt_0xe2bd1ff1_node10"],"manufacturer":"Zooz","model":"Tilt Shock XS Sensor (ZSE43)","name":"nodeID_10","sw_version":"1.20.1"},"name":"nodeID_10_notification_access_control_door_state","unique_id":"zwavejs2mqtt_0xe2bd1ff1_10-113-0-Access_Control-Door_state"}
2. Error: Executing the JINJA-transformation failed: An error occurred while transformation. InterpretException: Error resolving expression [{22: "Window/door is open",23: "Window/door is closed",5632: "Window/door is open in regular position",5633: "Window/door is open in tilt position"}[value_json.value] | default(value_json.value)]: TemplateStateException: Dict key must be a string or identifier, was: 22
3. Section of OpenHAB code that calls jinjava:

   /**
     * Transforms the input <code>value</code> by Jinja template.
     *
     * @param template Jinja template
     * @param value String may contain JSON
     * @throws TransformationException
     */
    @Override
    public @Nullable String transform(String template, String value) throws TransformationException {
        String transformationResult;
        Map<String, @Nullable Object> bindings = new HashMap<>();

        logger.debug("about to transform '{}' by the function '{}'", value, template);

        bindings.put("value", value);

        try {
            JsonNode tree = new ObjectMapper().readTree(value);
            bindings.put("value_json", toObject(tree));
        } catch (IOException e) {
            // ok, then value_json is null...
        }

        try {
            transformationResult = jinjava.render(template, bindings);
        } catch (FatalTemplateErrorsException e) {
            throw new TransformationException("An error occurred while transformation. " + e.getMessage(), e);
        }

        logger.debug("transformation resulted in '{}'", transformationResult);

        return transformationResult;
    }

4. I did capture value, tree and bindings during the transformation.
   value: {"time":1688240438204,"value":22,"nodeName":"","nodeLocation":""}
   tree: '{"time":1688240438204,"value":22,"nodeName":"","nodeLocation":""}
   bindings: {value_json={nodeName=, time=1688240438204, value=22, nodeLocation=}, value={"time":1688240438204,"value":22,"nodeName":"","nodeLocation":""}}

So the question as above; Can an integer be allowed as a key or identifier?

[cookie-starts-with-c]

something like this #934 ?

[apella12]

@asutalo - That does look like a fix. Thanks for pointing it out. I'll keep an eye on it.