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Envelope
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Envelope
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package flowbot.envelope
import com.typesafe.config.Config
import org.apache.log4j.Logger
import scala.collection.JavaConversions._
abstract class Envelope() {
private var _attributes: collection.mutable.Map[String, String] = scala.collection.mutable.Map.empty
val logger = Logger.getLogger(getClass.getName)
logger.debug("New Instance of Envelope")
def setAttributes(attributes: collection.mutable.Map[String, String]): Unit = {
logger.debug("setAttributes")
_attributes = attributes
}
def setAttribute(name: String, value: String): Unit = {
logger.debug("addAttribute")
logger.debug("name=" + name + " value=" + value)
//this.setAttributes(_attributes += (name -> value))
_attributes += (name -> value)
}
def getAttributes(): collection.mutable.Map[String, String] = {
logger.debug("getAttributes:" + _attributes)
_attributes
}
def getAttribute(name: String): String = {
logger.debug("getAttribute")
logger.debug("name=" + name)
this._attributes.getOrElse(name, "not found: " + name)
}
def removeAttribute(name: String): Unit = {
logger.debug("removeAttribute")
logger.debug("name=" + name)
this._attributes.remove(name)
}
def hasAttribute(name: String): Boolean = {
logger.debug("hasAttribute" + " name=" + name)
this._attributes.contains(name)
}
def hasAttributeLike(name: String): Boolean = {
logger.debug("hasAttributeLike" + " name=" + name)
var found = false
this._attributes.foreach(e => if (e._1.contains(name)) { found = true })
found
}
def hasAttributeEndingWith(name: String): Boolean = {
logger.debug("hasAttributeEndingWith" + " name=" + name)
var found = false
this._attributes.foreach(e => if (e._1.endsWith(name)) { found = true })
found
}
def setAttributesFromConfig(conf: Config, confStep: String): Unit = {
logger.debug("setAttributesFromConfig")
var attributes: collection.mutable.Map[String, String] = scala.collection.mutable.Map.empty
conf.getObject(confStep).foreach({
case (k, v) =>
this.setAttribute(k, v.unwrapped().toString)
this.setAttribute(confStep + "." + k, v.unwrapped().toString)
logger.debug("loading attribute key=" + k + " value=" + v.unwrapped().toString)
})
}
def mergeAttributes(attributes: collection.mutable.Map[String, String]): Unit = {
logger.info("Running mergeAttributes")
this.getAttributes ++= attributes.map {
case (k, v) => k -> {
this.getAttributes().getOrElse(k, v)
}
}
}
def cloneAttributes(valueToClone: String, newValue: String): Unit = {
logger.info("Running clone attributes")
this.getAttributes ++= this.getAttributes.map{ case (k,v) => k.replace(valueToClone + ".", newValue + "." ) -> {this.getAttributes.getOrElse(k, v)} }
}
def mergeAttributesWithFilter(attributes: collection.mutable.Map[String, String], filter: String): Unit = {
logger.info("Running mergeAttributesWithFilter")
this.getAttributes ++= attributes.filter(key => key._1.startsWith(filter))
}
def getAttributesWithFilter(filter: String): collection.mutable.Map[String, String] = {
logger.info("Running mergeAttributesWithFilter")
this._attributes.filter(key => key._1.contains(filter))
}
def getSteps(filter: String): collection.mutable.Map[String, String] = {
logger.info("Running getSteps")
this._attributes.filter(key => key._1.startsWith(filter)).map(e => (e._1.substring(0, e._1.lastIndexOf(".")), e._2))
}
//use this method if you have default value for the attribute
def getOrDefault[T](name: String, defaultValue: T): String = {
logger.debug("getAttribute")
logger.debug("name=" + name)
this._attributes.getOrElse(name, defaultValue.toString())
}
override def toString: String = {
//f low.uuid, flow.envelope.uuid, flow.name, flow.ts_flow_start, flow.ts_flow_end, key, value
this._attributes.map(e => "%s,%s,%s,%s,%s,%s,%s" format (this.getAttribute("flow.uuid"), this.getAttribute("flow.envelope.uuid"), this.getAttribute("flow.name"), this.getAttribute("flow.ts_flow_start"), this.getAttribute("flow.ts_flow_end"), e._1, e._2)).mkString("", "\n", "\n")
}
def checkQuality(step: String): Unit = {
logger.info("checkQuality")
val stepName = this.getAttribute(step + ".name")
// determine if this step is associated with a policy
if (this.hasAttribute(step + ".policy")) {
logger.info("policy found for step: " + step + ".policy")
val policyName = this.getAttribute(step + ".policy")
logger.info("policy name is: " + policyName)
val qualityPolicyName = policyName + ".quality"
val controlAction = this.getAttribute(policyName + ".control.failureAction")
val maxSumVariance: Double = this.getAttribute(qualityPolicyName + ".maxSumVariance").toDouble
val maxTotalCountVariance: Double = this.getAttribute(qualityPolicyName + ".maxTotalCountVariance").toDouble
val maxNullCountVariance: Double = this.getAttribute(qualityPolicyName + ".maxNullCountVariance").toDouble
val maxEmptyCountVariance: Double = this.getAttribute(qualityPolicyName + ".maxEmptyCountVariance").toDouble
val maxUniqueValuesCountVariance: Double = this.getAttribute(qualityPolicyName + ".maxUniqueValuesCountVariance").toDouble
val minSumVariance: Double = this.getAttribute(qualityPolicyName + ".minSumVariance").toDouble
val minTotalCountVariance: Double = this.getAttribute(qualityPolicyName + ".minTotalCountVariance").toDouble
val minNullCountVariance: Double = this.getAttribute(qualityPolicyName + ".minNullCountVariance").toDouble
val minEmptyCountVariance: Double = this.getAttribute(qualityPolicyName + ".minEmptyCountVariance").toDouble
val minUniqueValuesCountVariance: Double = this.getAttribute(qualityPolicyName + ".minUniqueValuesCountVariance").toDouble
this._attributes.filter(item => item._1.contains(stepName) && !item._1.contains("Importstatus") && !item._1.contains("dataType") && !item._1.contains("lastrun.metadata")).map(e => {
// determine if a metadata entry exists for this data item.
if (this.hasAttribute("lastrun.metadata." + e._1) && this.hasAttribute(e._1)) {
logger.info("lastrun metadata found: " + "lastrun.metadata." + e._1)
val previousValue: Double = this.getAttribute("lastrun.metadata." + e._1).toDouble
val currentValue = this.getAttribute(e._1).toDouble
var variance = ((currentValue - previousValue) / currentValue) * 100
if (variance.isNaN || variance.isInfinity) { variance = 0 }
// total unique values dq check
if (e._1.contains("-uniqueValues")) {
logger.info("checking unique values")
if (variance < minUniqueValuesCountVariance || variance > maxUniqueValuesCountVariance) {
if (controlAction.equals("logAndContinue")) {
this.setAttribute("alert." + qualityPolicyName + ".uniqueValuesCountVariance.failure", e._1 + " variance expected to be between " + minUniqueValuesCountVariance + " and " + maxUniqueValuesCountVariance + " but was " + variance)
} else {
throw new Exception("alert." + qualityPolicyName + ".uniqueValuesCountVariance.failure:" + e._1 + " variance expected to be between " + minUniqueValuesCountVariance + " and " + maxUniqueValuesCountVariance + " but was " + variance)
}
} else {
this.setAttribute(e._1 + ".uniqueValuesVariance.pass", variance.toString)
}
}
// total count dq check
if (e._1.contains("-nulls")) {
logger.info("checking nulls")
if (variance > maxNullCountVariance || variance < minNullCountVariance) {
if (controlAction.equals("logAndContinue")) {
this.setAttribute("alert." + qualityPolicyName + ".nullCountVariance.failure", e._1 + " variance expected to be between " + minNullCountVariance + " and " + maxNullCountVariance + " but was " + variance)
} else {
throw new Exception("alert." + qualityPolicyName + ".nullValuesCountVariance.failure:" + e._1 + " variance expected to be between " + minNullCountVariance + " and " + maxNullCountVariance + " but was " + variance)
}
} else {
this.setAttribute(e._1 + ".nullCountVariance.pass", variance.toString)
}
}
// total empties dq check
if (e._1.contains("-empties")) {
logger.info("checking empties")
if (variance > maxEmptyCountVariance || variance < minEmptyCountVariance) {
if (controlAction.equals("logAndContinue")) {
this.setAttribute("alert." + qualityPolicyName + ".emptyCountVariance.failure", e._1 + " variance expected to be between " + minEmptyCountVariance + " and " + maxEmptyCountVariance + " but was " + variance)
} else {
throw new Exception("alert." + qualityPolicyName + ".emptyCountVariance.failure:" + e._1 + " variance expected to be between " + minEmptyCountVariance + " and " + maxEmptyCountVariance + " but was " + variance)
}
} else {
this.setAttribute(e._1 + ".emptyCountVariance.pass", variance.toString)
}
}
// total count dq check
if (e._1.contains("-totalCount")) {
logger.info("checking total counts")
if (variance > maxTotalCountVariance || variance < minTotalCountVariance) {
if (controlAction.equals("logAndContinue")) {
this.setAttribute("alert." + qualityPolicyName + ".totalCountVariance.failure", e._1 + " variance expected to be between " + minTotalCountVariance + " and " + maxTotalCountVariance + " but was " + variance)
} else {
throw new Exception("alert." + qualityPolicyName + ".totalCountVariance.failure:" + e._1 + " variance expected to be between " + minTotalCountVariance + " and " + maxTotalCountVariance + " but was " + variance)
}
} else {
this.setAttribute(e._1 + ".totalCountVariance.pass", variance.toString)
}
}
// total sum dq check
if (e._1.contains("-sum")) {
logger.info("checking sums")
if (variance > maxSumVariance || variance < minSumVariance) {
if (controlAction.equals("logAndContinue")) {
this.setAttribute("alert." + qualityPolicyName + ".sumVariance.failure", e._1 + " variance expected to be between " + minSumVariance + " and " + maxSumVariance + " but was " + variance)
} else {
throw new Exception("alert." + qualityPolicyName + ".sumVariance.failure:" + e._1 + " variance expected to be between " + minSumVariance + " and " + maxSumVariance + " but was " + variance)
}
} else {
this.setAttribute(e._1 + ".sumVariance.pass", variance.toString())
}
}
} else {
logger.info("lastrun metadata not found, skipping DQ checks for: " + "lastrun.metadata." + e._1)
}
})
}
}
}