惰性解析大型XML中的元素
我们正在处理这些文件。简而言之,它们是XML,包含大量数据,可能超过15GB 为了有效地处理这些文件,我们选择了库 让我给你举个例子:惰性解析大型XML中的元素,xml,scala,xml-parsing,scales-xml,Xml,Scala,Xml Parsing,Scales Xml,我们正在处理这些文件。简而言之,它们是XML,包含大量数据,可能超过15GB 为了有效地处理这些文件,我们选择了库 让我给你举个例子: <?xml version="1.0" encoding="UTF-8"?> <Otds UpdateMode="Merge" xmlns="http://otds-group.org/otds" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Version="1.9.1" xsi:
<?xml version="1.0" encoding="UTF-8"?>
<Otds UpdateMode="Merge"
xmlns="http://otds-group.org/otds"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
Version="1.9.1" xsi:schemaLocation="http://otds-group.org/otds ../xsd/otds.xsd">
<Brands>
...
</Brands>
<Accommodations>
<Accommodation Key="A">
...
<SellingAccom>
...
<PriceItems Key="1">...</PriceItems>
...
</SellingAccom>
...
</Accommodation>
... <!-- A lot of <Accomodation> tags -->
<Accommodation Key="Z">
...
</Accommodation>
<PriceItems Key="Global1"></PriceItems> <!-- Collect all of these -->
<PriceItems Key="Global2"></PriceItems>
</Accommodations>
</Otds>
...
...
...
...
...
...
...
...
我们遇到了这个问题。XML包含大量沉重的
标记。我们将提取所有
,它们是
标记的直接子项
我创建了真正的简化文件:
<?xml version="1.0" encoding="UTF-8"?>
<Otds UpdateMode="Merge"
xmlns="http://otds-group.org/otds"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
Version="1.9.1" xsi:schemaLocation="http://otds-group.org/otds ../xsd/otds.xsd">
<Brands>
<Brand>EBIWA</Brand>
</Brands>
<Accommodations>
<Accommodation Key="ATH432">
<SellingAccom>
<PriceItems Key="1"></PriceItems>
</SellingAccom>
</Accommodation>
<Accommodation Key="ATH433">
<SellingAccom>
<PriceItems Key="2"></PriceItems>
</SellingAccom>
</Accommodation>
<PriceItems Key="Global"></PriceItems>
</Accommodations>
</Otds>
艾比瓦
我目前的做法是:
val ns = Namespace("http://otds-group.org/otds")
val Otds = ns("Otds")
val Accommodations = ns("Accommodations")
val PriceItems = ns("PriceItems")
val Accommodation = ns("Accommodation")
val priceItemsPath = List(Otds, Accommodations, PriceItems)
val xml = pullXml(inputstream, optimisationStrategy = QNameElemTreeOptimisation)
val itr = iterate(priceItemsPath, xml)
for {
priceItems <- itr
} yield {
val parsedJson = parseXml(priceItems)
val result = parsedJson.children.head.extract[PriceItems]
result
}
val ns=命名空间(“http://otds-group.org/otds")
val Otds=ns(“Otds”)
val住宿=ns(“住宿”)
val PriceItems=ns(“PriceItems”)
val住宿=ns(“住宿”)
val priceItemsPath=列表(OTD、住宿、PriceItems)
val xml=pullXml(inputstream,OptimizationStrategy=QNameElemTreeOptimization)
val itr=iterate(priceItemsPath,xml)
为了{
priceItems我们在当前实施中未找到解决方案,因此我们已自行准备更改。在空闲时间,我们将创建PR或fork.PR。我们在当前实施中未找到解决方案,因此我们已自行准备更改。在空闲时间,我们将创建PR或fork.PR