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Groovy中XML响应节点数据的映射

groovy

Peter Cook · 技术社区 · 8 年前

我试图在映射中存储XML响应节点值,但这确实很复杂。以下是XML:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<SearchRS>
    <SearchStatus>SUCCESS</SearchStatus>
    <Itinerary>
        <Name>Joe</Name>
        <Ticket>111.11</Ticket>
        <Taxes>1.11</Taxes>
    </Itinerary>
    <Itinerary>
        <Name>Bob</Name>
        <Ticket>222.22</Ticket>
        <Taxes>2.22</Taxes>
    </Itinerary>
    <Itinerary>
        <Name>Joe</Name>
        <Ticket>333.33</Ticket>
        <Taxes>3.33</Taxes>
        </Itinerary>
    <Itinerary>
    <Itinerary>
        <Name>Bob</Name>
        <Ticket>444.44</Ticket>
        <Taxes>4.44</Taxes>
    </Itinerary>
        <Name>Joe</Name>
        <Ticket>0.0</Ticket>
        <Taxes>0.0</Taxes>
    </Itinerary>
</SearchRS>

我需要计算每个名字的平均门票+税款。

注:0.0的任何值都应从平均值中排除。

我想创建一个包含以下内容的地图:

[ name : average of ticket+taxes value]

我试过了,这会找到每个的最小值,博士。日程表保存XML响应。

  def minByName = doc.Itinerary
            .inject([:].withDefault { [] }) { map, it ->
       map[it.Name.text()] << it
       map
  }
  .collectEntries { profile, nodes ->
       [profile, nodes.min { it.Ticket.text() as Double }]
  }

  def nameList = []
    minByName.each { profile, minimum ->
        Map nameMap = [:]
        nameMap.name = profile
        nameMap.ticket = minimum.Ticket.toString()
        nameMap.taxes = minimum?.Taxes
        nameList << nameMap
  }
 log.info("Cheapest ticket and tax per name: " + nameList)

这将导致每个名称都有一组数据:

[[name:Joe, ticket:111.11, taxes:1.11], [name:Bob, etc...]]

我希望地图中的值不是最小值,而是平均值,例如,Joe的所有门票+税款。

如下所示:

[[name:Joe, averageCost:224.44], [name:Bob, averageCost...]]

111.11+1.11=112.22,333.33+3.33=336.66。112.22+336.66=448.88。448.88/2=224.44

我真的被困在这一点上了,非常感谢您的帮助!

2 回复 | 直到 8 年前

Rao CrashOverload 8 年前

看看这是否是你想要的(在线评论中解释):

//pass xmlString to below
def xml = new XmlSlurper().parseText(xmlString)
def map = [:]
//Find unique names, then  respective Iteneraries, then collect ticket & taxes, convert to Double, eliminate 0 values, sum and average, put into map
xml.'**'.findAll {it.name() == 'Name'}.unique().each { name -> 
   map[name] = xml.'**'.findAll {it.name() == 'Itinerary' && name == it.Name.text() }.collect { Double.parseDouble(it.Ticket.text()) + Double.parseDouble(it.Taxes.text())}.findAll {it}.with { sum() / size() }
}
println map

请找到快捷键 demo

编辑: 回应OP的评论。

改变 sum() 到 sum().round(2)

Bhanuchander Udhayakumar 8 年前

如果我理解正确,

def root = new XmlSlurper().parse(new File ('/tmp/stack.xml'))

List <String> names = root.'**'.findAll{ it.name() == "Name"}.collect{it}

List <Map> totalresult = []

names.unique().each{name ->

    Map result = [:]

    result["name"] = name

    List<Float> tickets = root.'**'.findAll{ it.Name == name && it.Ticket.toFloat() > 0.0}.collect { it.Ticket.toFloat() + it.Taxes.toFloat() }

    result ["total"] = tickets.sum()

    result ["occurances"]= tickets.size()

    result ["avgCosts"] = result.total/result.occurances

    totalresult.add(result)

}

println totalresult

更新1:根据要求更正代码。