Backup senica-RVO2 on 16.10.2025

RVO2/flow_22_01_25/helper/DataToTbHandler.js

@@ -0,0 +1,133 @@
+class DataToTbHandler {
+
+  constructor(index) {
+    this.index = index;
+
+    // time, after new value for the given key will be resend to tb (e.g. {status: "OK"})
+    this.timeToHoldTbValue = 30*60; //30 minutes
+
+    this.previousValues = {};
+    this.debug = false;
+    this.messageCounter = 0;
+
+    this.sender = "";
+  }
+
+  dump() {
+    console.log("----------------------------");
+    console.log("previousValues", this.previousValues);
+    console.log("----------------------------");
+  }
+
+  setSender(sender) {
+    this.sender = sender;
+  }
+
+  isEmptyObject(obj) {
+    for (var name in obj) {
+      return false;
+    }
+    return true;
+  }
+
+  sendToTb(dataToTb, instance) {
+
+    let keys = Object.keys(dataToTb);
+
+    if(keys.length == 0)
+    {
+      if(this.debug) console.log("sendToTb received empty object", dataToTb);
+      return;
+    }
+
+    let tbname = keys[0];
+    let ts;
+
+    let arrayOfValues = dataToTb[tbname];
+    let arrayOfValuesToSend = [];
+
+    for(let i = 0; i < arrayOfValues.length; i++)
+    {
+      ts = arrayOfValues[i].ts;
+      let values = this.prepareValuesForTb(tbname, ts, arrayOfValues[i].values);
+
+      if(!this.isEmptyObject(values)) 
+      {
+        arrayOfValuesToSend.push({ts: ts, values: values});
+      }
+    }
+
+    if(arrayOfValuesToSend.length == 0)
+    {
+      //if(this.debug) console.log("data not sent - empty array");
+      return;
+    }
+
+    this.messageCounter++;
+
+    let dataToTbModified = {
+        [tbname]: arrayOfValuesToSend
+    }
+
+    //console.log(this.sender + " DATA SEND TO TB ", tbname, this.messageCounter, new Date(ts), dataToTbModified[tbname][0].values, this.instance);
+    //if(this.debug) console.log(this.sender + " DATA SEND TO TB ", this.index, tbname, arrayOfValuesToSend);
+    instance.send(this.index, dataToTbModified);
+  }
+
+  getDiffTimestamp(key) {
+    //TODO set different value for given key!!!
+    //if(key == "status") this.timeToHoldTbValue = 2*60*60;//2h
+    return this.timeToHoldTbValue * 1000;
+  }
+
+  prepareValuesForTb(tbname, timestamp, values) {
+
+    let keys = Object.keys(values);
+    if(!this.previousValues.hasOwnProperty(tbname))
+    {
+      this.previousValues[tbname] = {};
+    }
+
+    //if(this.debug) console.log("prepareValuesForTb", tbname, timestamp, values);
+
+    for(let i = 0; i < keys.length; i++)
+    {
+      let key = keys[i];
+      let value = values[key];
+
+      if(!this.previousValues[tbname].hasOwnProperty(key)) 
+      {
+        this.previousValues[tbname][key] = {ts: timestamp, value: value};
+        continue;
+      }
+
+      if(this.previousValues[tbname][key].value === value)
+      {
+        let diff = timestamp - this.previousValues[tbname][key].ts;
+
+        let timestampDiffToRemoveKey = this.getDiffTimestamp(key);
+        if(diff > timestampDiffToRemoveKey)
+        {
+          this.previousValues[tbname][key].ts = Date.now();
+          //if(this.debug) console.log(this.sender + ": update ts for key", key, "diff is", diff, "messageCounter", this.messageCounter);
+
+        }
+        else
+        {
+          delete values[key];
+          //if(this.debug) console.log(this.sender + ": delete key", key, "diff is", diff, "messageCounter", this.messageCounter, timestampDiffToRemoveKey);
+        }
+      }
+      else
+      {
+        this.previousValues[tbname][key].value = value;
+        this.previousValues[tbname][key].ts = timestamp;
+      }
+
+    }
+
+    return values;
+  }
+}
+
+module.exports =  DataToTbHandler;