我有以下代码:
def generateStoriesnew(outputPath: String, groupedRDD:RDD[(String,Iterable[String])], isInChurnMode: Boolean, isInChurnPeriod: Boolean) {
val windowedRDD = groupedRDD.map(SOME CODE)
var windowedRDD2 = windowedRDD.filter(r => r != null).map(a=>a.churnPeriod(isInChurnPeriod,isInChurnMode))
val prettyStringRDD = windowedRDD2.map(r => {
r.toString
})
prettyStringRDD.saveAsTextFile(outputPath)
}
以下是ChurnPriod函数的代码:
def churnPeriod( churnPeriod:Boolean, churnMode: Boolean): Unit = {
if (churnMode && rootEventType.equalsIgnoreCase("c")){
var churnCustStory: CustStoryN = null
var nonChurnCustStory: CustStoryN = null
var churnPeriodEventStory: mutable.MutableList[StoryEventN] = null
var NonChurnEventstory: mutable.MutableList[StoryEventN] = null
churnPeriodEventStory = new mutable.MutableList[StoryEventN]
NonChurnEventstory = new mutable.MutableList[StoryEventN]
var lastEventChurnPeriod = true
var currentEventStory = eventStory
var max = currentEventStory.length
println(max);
if (currentEventStory.size > 0) {
for (i <- 0 until currentEventStory.length) {
var currentEvent = currentEventStory(i)
if (currentEvent.timeSenseRootEvent < 90) {
churnPeriodEventStory.+=(currentEvent)
//lastEventChurnPeriod = true
}
else {
NonChurnEventstory.+=(currentEvent)
lastEventChurnPeriod = false
}
}
}
if (churnPeriod)
eventStory = churnPeriodEventStory
else
eventStory=null
} }
但是churn period函数不会更改作为custstory类成员的eventstory。我在这里错过了什么?
class CustStoryN (val custId:String,
var rootEventType:String,
var rootEventTime:Long,
var eventStory:mutable.MutableList[StoryEventN])
我的假设是: 1.map不是我所拥有的函数的正确转换 2.churnPeriod函数永远不会被调用 3.我不能改变作为特定故事类成员的eventstory 有谁知道如何解决这个问题?
答案 0 :(得分:0)
通过调试确定这将是微不足道的。只需放几个断点,就可以看到程序是否在函数内部停止,以及发生了什么转换。
我的猜测是问题是这一行:if (currentEventStory.size > 0)
,因此,从0开始的列表永远保持为0。另一个选择是churnPeriod
永远不会成立,因此,您计算了很多但从未分配给eventStory
变量。
您的代码确实需要很好的清理; - )