Name
global.DiscoveryAPDSensor
Description
The abstract sensor for parsing application files
Script
// Discovery
/**
*
* @author Aleck.Lin aleck.lin@service-now.com
*/
var DiscoveryAPDSensor = Class.create();
DiscoveryAPDSensor.prototype = Object.extendsObject(DiscoverySensor, {
process: function(result) {
if (!this.hasValidContent(result)) {
this.setTriggerProbes(false);
return;
}
var processedResult = this.processResult(result);
this.start(processedResult);
},
hasValidContent: function(result) {
// Check for at least result has something...
if (JSUtil.nil(result))
return false;
// IF output exists (which implies unix-based result), but it has no xml header, then no good...
if (JSUtil.notNil(result.output) && result.output.indexOf("<?xml") == -1) {
DiscoveryLogger.warn("Unable to process the APD file content because of bad XML", 'DiscoveryAPDSensor', this.getEccQueueId(), null);
return false;
}
return true;
},
_isFileType: function(type) {
if (this.fileType == type)
return true;
DiscoveryLogger.warn("Incorrect xml file type " + type , 'DiscoveryAPDSensor', this.getEccQueueId(), null);
return false;
},
/*
* turn xml into javascript object
*/
processResult: function(result) {
// If there's no <output> tag, that should mean there's no need to parse.
if (JSUtil.nil(result.output))
return result;
var xh = new XMLHelper();
xh.setTrim(true);
return xh.toObject(XMLUtilJS.unescapeForXMLText(result.output));
},
processCustom: function(dcaGr, versionResult, envResult) {
var script = dcaGr.getValue('script');
if (JSUtil.nil(script))
return;
if (script.indexOf("function") == -1)
return;
try {
var classyScript = eval( '(' + script + ')' ); // get the on classification script into a variable...
classyScript(versionResult, envResult, this.ciData, DiscoveryLogger, this); // execute the script...
} catch (e) {
var errMsg = 'Error in evaluating script for ' + dcaGr.getValue('name') + ': ' + e;
DiscoveryLogger.error(errMsg, 'DiscoveryAPDSensor', this.getEccQueueId(), null);
}
},
processPartOfService: function() {
if (JSUtil.nil(this.cidata.business_service))
return;
var relationship = "Depends on::Used by";
var bsgr = this._findService(this.cidata.business_service);
if (JSUtil.nil(bsgr)) {
bsgr = this._createService(this.cidata.business_service);
var relID = g_disco_functions.createRelationship(bsgr.sys_id, this.applicationGr.sys_id, relationship);
this._logCreationServiceAndRelationship(bsgr, relID, relationship);
return;
}
if (JSUtil.notNil(g_disco_functions.relationshipExists(bsgr.sys_id, this.applicationGr.sys_id, relationship)))
return;
var relID = g_disco_functions.createRelationship(bsgr.sys_id, this.applicationGr.sys_id, relationship);
this._logSerivceAndAppRelationship(bsgr, relID, relationship);
},
processServicesProvided: function() {
var relationship = "Provided by::Provides";
for (var i=0; i<this.cidata.services_provided.length; i++) {
if (JSUtil.nil(this.cidata.services_provided[i]))
continue;
this._processApplicationProcessor(this.cidata.services_provided[i], relationship, "provide");
}
},
processServicesConsumed: function() {
var relationship = "Consumes::Consumed by";
for (var i=0; i<this.cidata.services_consumed.length; i++) {
if (JSUtil.nil(this.cidata.services_consumed[i]))
continue;
this._processApplicationProcessor(this.cidata.services_consumed[i], relationship, "consume");
}
},
_processApplicationProcessor: function(serviceName, relationship, type) {
var relID;
var bsgr = this._findService(serviceName);
if (JSUtil.nil(bsgr)) {
bsgr = this._createService(serviceName);
if (type == "provide")
relID = g_disco_functions.createRelationship(bsgr.sys_id, this.applicationGr.sys_id, relationship);
else
relID = g_disco_functions.createRelationship(this.applicationGr.sys_id, bsgr.sys_id, relationship);
this._logCreationServiceAndRelationship(bsgr, relID, relationship);
return;
}
if (type == "provide")
relgr = g_disco_functions.relationshipExists(bsgr.sys_id, this.applicationGr.sys_id, relationship);
else
relgr = g_disco_functions.relationshipExists(this.applicationGr.sys_id, bsgr.sys_id, relationship);
if (JSUtil.notNil(relgr))
return;
/*
* In the inception of APD, the relationship on the BSM was built backwards, so we need to check to see if there's any sign
* of old pattern of relatinoships. If there was, then we delete it and recreate a new one with the correct directionality.
*
* This following section of code should be removed by the time we stop supporting the Dublin release. In other words, there are no more
* customer on a build before the Dublin release.
*/
/***** Beginning section of code to fix old relationship patern ******/
var old_p_relationship = "Provides::Provided by";
var old_c_relationship = "Consumed by::Consumes";
if (type == "provide")
relgr = g_disco_functions.relationshipExists(this.applicationGr.sys_id, bsgr.sys_id, old_p_relationship);
else
relgr = g_disco_functions.relationshipExists(bsgr.sys_id, this.applicationGr.sys_id, old_c_relationship);
if (JSUtil.notNil(relgr)) {
gs.log("***** Deleteing old relationship... parent:" + relgr.parent.name + " child:" + relgr.child.name + " sysid:" + relgr.sys_id );
relgr.deleteRecord();
}
/***** end section of code to fix old relationship patern ******/
if (type == "provide")
relID = g_disco_functions.createRelationship(bsgr.sys_id, this.applicationGr.sys_id, relationship);
else
relID = g_disco_functions.createRelationship(this.applicationGr.sys_id, bsgr.sys_id, relationship);
this._logSerivceAndAppRelationship(bsgr, relID, relationship);
},
_findService: function(name) {
var gr = new GlideRecord("cmdb_ci_service");
gr.addQuery("name", name);
gr.query();
if (gr.next())
return gr;
return;
},
_createService: function(name) {
var gr = new GlideRecord("cmdb_ci_service");
gr.name = name;
gr.insert();
return gr;
},
_logCreationServiceAndRelationship: function(bsgr, relID, relationship) {
var bsClass = bsgr.sys_class_name;
var appClass = this.applicationGr.sys_class_name;
DiscoveryLogger.info("Created " + this._buildURL(bsgr.name, bsClass, bsgr.sys_id) + " (" + bsClass + ") and its " + this._buildURL("relationship", "cmdb_rel_ci", relID) + " (" + relationship + ") to " + this._buildURL(this.applicationGr.name, appClass, this.applicationGr.sys_id) + " (" + appClass + ")", 'DiscoveryAPDSensor', this.getEccQueueId(), this.systemCI.sys_id);
},
_logSerivceAndAppRelationship: function(bsgr, relID, relationship) {
var bsClass = bsgr.sys_class_name;
var appClass = this.applicationGr.sys_class_name;
DiscoveryLogger.info("Created " + this._buildURL("relationship", "cmdb_rel_ci", relID) + " (" + relationship + ") from " + this._buildURL(bsgr.name, bsClass, bsgr.sys_id) + " (" + bsClass + ") to " + this._buildURL(this.applicationGr.name, appClass, this.applicationGr.sys_id) + " (" + appClass + ")", 'DiscoveryAPDSensor', this.getEccQueueId(), this.systemCI.sys_id);
},
_buildURL: function(display, table, sysID) {
return "[code]<a title='" + display + "' class='linked' href='" + table + ".do?sysparm_query=sys_id=" + sysID + "'>" + display + "</a>[/code]";
},
type: "DiscoveryAPDSensor"
});Sys ID
d0c37348ff701000dada361332f49dde