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A script JsonEmport example

  • Here's a simple script to add a particular event detector to all data points identified by either a static or a query watchlist:

    var xidPrefix = "ED_15m_status_"; //Used to see if a point already has the detector
    var watchListXid = "WL_5275e48f-5819-4971-8462-0d1ed8ea8264"; //Identify the points to add to
    var dataPoints = JSON.parse(JsonEmport.getConfiguration("dataPoints")).dataPoints;
    var watchLists = JSON.parse(JsonEmport.getConfiguration("watchLists")).watchLists;
    function findByXid(list, xid) {
        for( var k = 0; k < list.length; k+=1 )
            if( list[k].xid === xid )
                return list[k];
        return undefined;
    var wl = findByXid(watchLists, watchListXid);
    if(typeof wl === 'undefined')
        throw "Couldn't find watchlist with XID " + watchListXid + " to add detectors to";
    var importPoints = [];
    function addDetectorToDataPoint(dp) {
        for( var l = 0; l < dp.eventDetectors.length; l+=1 ) {
            if(dp.eventDetectors[l].xid.startsWith(xidPrefix)) //Don't add it twice
        var ed = { //Gotten by configuring one and exporting it
                   "state": (dp.textRenderer.type === "BINARY" 
                          && dp.textRenderer.oneLabel === "Device Ok")
        //Note that compatibility is not being checked, but it should just fail
        // the individual points during the import if isn't a binary point.
    if(wl.type === 'static') {
        //Okay, just look over an XID list
        for(var j = 0; j < wl.dataPoints.length; j+=1) {
            var dp = findByXid(dataPoints, wl.dataPoints[j]);
    } else if(wl.type === 'query') {
        //Okay, use the query to get the data points from the DataPointQuery
        var addToPoints = DataPointQuery.query(wl.query);
        for(var j = 0; j < addToPoints.length; j+=1) {
            var dp = findByXid(dataPoints, addToPoints[j].getXid());
    //Mango 3.5 will allow us to
    //JsonEmport.setImportDuringValidation( true );

    In Mango 3.5 there will be a way to tell the JsonEmport utility to run even during validation, but for now this script would have to actually run to perform the import.

    Edit: I said there would be a way to import during validation, and there is! The commented line about setImportDuringValidation can be uncommented to make the importer work even during script validation.

    8/23/19 edit: I believe the name field an no longer be blank, as in the original posting.