First commit

utils/TimerMgr.js

@@ -0,0 +1,73 @@
+// Logging
+console.loggerName = "org.openhab.js.utils.TimerMgr";
+console.log("Loading utils.TimerMgr");
+
+class TimerMgr {
+
+    #timers = new Object();
+
+    constructor() {
+        console.info('Initialization of TimerMgr helper class');
+    }
+
+    create(id, timeout, func) {
+        console.log("Create timer with id " + id);
+        this.#timers[id] = actions.ScriptExecution.createTimer(id, timeout, func);
+    }
+
+    cancel(identifier) {
+        // Return if no timer with the respactive identifier is available
+        if (!this.#timers.hasOwnProperty(identifier)) {
+            console.log(`No timer with identifier ${identifier} available to cancel`);
+            return false;
+        }
+
+        // Check if timer is active
+        if (!this.#timers[identifier].isActive()) {
+            console.log(`Timer with identifier ${identifier} not running. Cancel anyway`);
+        } else {
+            console.log(`Cancel timer with identifier ${identifier}`);  
+        }
+
+        // Cancel timer
+        this.#timers[identifier].cancel();
+        delete this.#timers[identifier];
+    }
+
+    hasTimer(id) {
+        return this.#timers.hasOwnProperty(id);
+    }
+
+    isActive(identifier) {
+        return this.#timers[identifier].isActive();
+    }
+
+    cancelAll() {
+        // Fetch timers
+        let timers = Object.keys(this.#timers);
+
+        // Return if no timers available
+        if (timers.length == 0) {
+            console.log('No timers available to cancel');
+            return false;
+        }
+        
+        // Cancel all timers
+        for (let timer of timers) {
+           this.cancel(timer);
+        }
+    }
+
+    reschedule(id, timeout) {
+        this.#timers[id].reschedule(timeout);
+    }
+}
+
+function getTimerMgr () {
+    return new TimerMgr();
+}
+
+module.exports = {
+    TimerMgr,
+    getTimerMgr
+};

utils/index.js

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+// Logging
+console.loggerName = "org.openhab.js.utils";
+console.log("Loading utils");
+
+module.exports = {
+    get TimerMgr() { return require('./TimerMgr.js').getTimerMgr; }
+}