source: tmcsimulator/trunk/webapps/einotebook/scripts/LoadEvents.js @ 434

/* author: jdalbey    date: 4/10/2019 */



// Parse the entire Incident XML Script file 

// Extract the Incidents and Events and create lists of each

function parseXml(response)

{

    // Create a parser and grab the high level tag we're interested in

    var parser = new DOMParser();

    var xmlDoc = parser.parseFromString(response,"text/xml");

    var eventTags = xmlDoc.getElementsByTagName("SCRIPT_EVENT");

    console.log("parsing incident xml file");

    // Process each SCRIPT_EVENT tag

    for (var i = 0; i < eventTags.length; i++)

    {

        var currEvt = eventTags[i];

        // local variable declarations

        var timeFields; var evtTime; var incidentNum; var incidentTitle; var cadProp; var telProp;

        var proparray = new Array();

        var evalarray = new Array();

        // Process all the children of one event

        for (var child = 1; child < currEvt.childNodes.length; child++)

        {

            // Ignore undefined nodes

            if (currEvt.childNodes[child].localName != undefined)

            {

                var tagName = currEvt.childNodes[child].localName.toUpperCase();

                // Determine the tag type and dispatch it for further processing

                switch(tagName)

                {

                    case "TIME_INDEX": 

                        timeFields = currEvt.childNodes[child].textContent.split(":"); 

                        evtTime = new Time(Number(timeFields[0]), Number(timeFields[1]), Number(timeFields[2]));

                        break;

                    case "INCIDENT":

                        incidentNum = Number(currEvt.childNodes[child].attributes["LogNum"].value);

                        incidentTitle =  currEvt.childNodes[child].textContent;

                        break;

                    case "GENERAL_INFO":  

                        /* This tag identifies a new incident.  As long as it appears before any

                        other tags, we can use it to create a new incident. (The alternative is to

                        have a separate function that parses xml to extract incidents before

                        we load events.)  Creating an event (below) requires that the incident has already

                        been created. */

                        var desc = currEvt.childNodes[child].getElementsByTagName("TEXT")[0].textContent;

                        var theIncident = new Incident(evtTime, incidentNum, incidentTitle, desc);

                        incidents.add(theIncident);

                        // Create an entry showing the Incident start description. Fixes ticket #164

                        var result = new Array();   

                        result.push("Description:");

                        result.push(desc);

                        proparray.push(new Property("Incident Start",result));

                        break;

                    case "CAD_DATA": 

                        var caddata = parseCAD(currEvt.childNodes[child]); 

                        if (caddata.length > 0)

                        {

                            cadProp = new Property("CHP CAD", caddata ); 

                            proparray.push(cadProp);

                        }

                        break;

                    case "TELEPHONE": 

                        telProp = new Evaluation("TELEPHONE CONVERSATION", 

                                 parseTelephone(currEvt.childNodes[child]) );  

                        evalarray.push(telProp);

                        break;

                    case "CHP_RADIO": 

                        var chpradio = parseCHPradio(currEvt.childNodes[child]); 

                        if (chpradio.length > 0)

                        {

                            cadProp = new Property("CHP RADIO", chpradio ); 

                            proparray.push(cadProp);

                        }

                        break;



                    case "TMT_RADIO":  

                    case "MAINTENANCE_RADIO": 

                        var result = new Array();   

                        result.push("Details:");

                        result.push(currEvt.childNodes[child].textContent.trim());

                        var radProp = new Property(tagName, result ); 

                        proparray.push(radProp);

                        break;



                    case "FACILITATOR_EVALUATION": 

                    case "CAD_EVALUATION":

                    case "ATMS_EVALUATION":

                    case "ACTIVITY_LOG_EVALUATION":

                    case "RADIO_EVALUATION":

                        // remove the suffix

                        var evalType = tagName.replace("_EVALUATION","");

                        // Build the evaluation item

                        var evalItem = new Evaluation(evalType, 

                                 parseEvaluation(currEvt.childNodes[child]) );  

                        evalarray.push(evalItem);

                        break;

                        

                    case "CMS_EVALUATION":

                        var cmsEval = new Evaluation("CMS", parseCMSEvaluation(currEvt.childNodes[child]));

                        evalarray.push(cmsEval);

                        break;

                }

            }

        }

        //console.log(evtTime.format(), incidentNum, proparray.length, evalarray.length);

        // Ignore Media Log incident and empty nodes

        if (incidentNum != undefined && incidentNum != 100)

        {

          // Create new event with fields obtained from xml file

          events.add(new Event(evtTime, incidents.get(incidentNum), 

                new Properties(proparray), 

                new Evaluations(evalarray)) );

        }

    }

}



function parseCAD(element)

{

    var result = new Array();

    var details = element.getElementsByTagName("DETAIL");

    if (details.length > 0)

    {

        for (detail in details)

        {

            if (details[detail].textContent != undefined)

            {                

                result.push("Detail:");

                result.push(details[detail].textContent);

            }

        }

    }

    return result;

}

function parseTelephone(element)

{

    var result = new Array();

    for (var child = 1; child < element.childNodes.length; child++)

    {

        if (element.childNodes[child].localName != undefined)

        {

            if (element.childNodes[child].localName == "INSTRUCTOR")

            {

                result.push(element.childNodes[child].attributes["Role"].value);

            }

            else

            {

                result.push(element.childNodes[child].localName);   

            }

            result.push(element.childNodes[child].textContent);

        }

    }

    return result;

}

function parseCHPradio(element)

{

    var result = new Array();

    var dialog = element.getElementsByTagName("LINE");

    if (dialog.length > 0)

    {

        for (line in dialog)

        {

            if (dialog[line].textContent != undefined)

            {                

                result.push(dialog[line].attributes["Role"].value);

                result.push(dialog[line].textContent);

            }

        }

    }

    return result;

}

function parseEvaluation(element)

{

    var result = new Array();

    var details = element.getElementsByTagName("EXPECTED_ACTION");

    if (details.length > 0)

    {

        for (detail in details)

        {

            if (details[detail].textContent != undefined)

            {                

                result.push("Expected Action:");

                result.push(details[detail].textContent.trim());

            }

        }

    }

    return result;

}

function parseCMSEvaluation(element)

{

    var result = new Array();

    var locations = element.getElementsByTagName("LOCATION");

    if (locations.length > 0)

    {

        result.push("Sign Location:");

        result.push(locations[0].textContent);

    }

    var details = element.getElementsByTagName("CMS_LINE");

    if (details.length > 0)

    {

        for (detail in details)

        {

            if (details[detail].textContent != undefined)

            {                

                result.push("Sample Message:");

                result.push(details[detail].textContent.trim());

            }

        }

    }

    return result;

}

// MAIN

//console.log("starting LoadEvents");

try {

    // the script must be located where accessible by the web server

    var scriptFilename = "../dynamicdata/incident_script.xml";

    console.log("Attempting to load ", scriptFilename);

    // Now load the Incident Script and go parse it

    loadJSON(scriptFilename, parseXml)



    } catch(e) {

        console.log("Error attempt to parse incident script "+response)

    }