[英]XSLT 3.0 Combine nodes into single parent node
我有一個示例 XML,我需要將其轉換為組合具有相同 Archived_Employee_ID 的節點。 我創建的 XSLT 已經可以工作,但我正在尋找一個更干凈的解決方案,該解決方案使用 XSLT3.0 具有高性能,因為我預計會有巨大的數據負載。
XSLT 我正在使用:
<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:wd="ur">
<xsl:output omit-xml-declaration="yes"/>
<xsl:mode on-no-match="shallow-copy"/>
<xsl:template match="wd:Report_Data">
<wd:Report_Data>
<xsl:for-each-group select="wd:Report_Entry" group-by="wd:Archived_Employee_ID">
<wd:Report_entry>
<wd:Archived_Employee_ID>
<xsl:value-of select="wd:Archived_Employee_ID"/>
</wd:Archived_Employee_ID>
<xsl:call-template name="Fix"/>
</wd:Report_entry>
</xsl:for-each-group>
</wd:Report_Data>
</xsl:template>
<xsl:template name="Fix">
<wd:AE_group>
<xsl:variable name="AE">
<xsl:value-of select="distinct-values(current-group()/wd:Archived_Expectation)"
separator="§"/>
</xsl:variable>
<xsl:for-each select="tokenize($AE, '§')">
<wd:Archived_Expectation>
<xsl:value-of select="."/>
</wd:Archived_Expectation>
</xsl:for-each>
</wd:AE_group>
<wd:AE_Category_Group>
<xsl:variable name="Category">
<xsl:value-of select="(current-group()/wd:Archived_Expectation_Category)"
separator="§"/>
</xsl:variable>
<xsl:for-each select="tokenize($Category, '§')">
<wd:Archived_Expectation_Category>>
<xsl:value-of select="."/>
</wd:Archived_Expectation_Category>>
</xsl:for-each>
</wd:AE_Category_Group>
</xsl:template>
</xsl:stylesheet>
這是樣品 XML:
<?xml version='1.0' encoding='UTF-8'?>
<wd:Report_Data xmlns:wd="ur">
<wd:Report_Entry>
<wd:Archived_Employee_ID>XYZ</wd:Archived_Employee_ID>
<wd:Archived_Expectation>Increase complaint statistics.</wd:Archived_Expectation>
<wd:Archived_Expectation_Category>Roles, Responsibilities &
Competencies</wd:Archived_Expectation_Category>
</wd:Report_Entry>
<wd:Report_Entry>
<wd:Archived_Employee_ID>XYZ</wd:Archived_Employee_ID>
<wd:Archived_Expectation>Verantwortungsbereich</wd:Archived_Expectation>
<wd:Archived_Expectation_Category> Competencies</wd:Archived_Expectation_Category>
</wd:Report_Entry>
<wd:Report_Entry>
<wd:Archived_Employee_ID>123</wd:Archived_Employee_ID>
<wd:Archived_Expectation>Verantwortungsbereich: 5%</wd:Archived_Expectation>
<wd:Archived_Expectation_Category> Role</wd:Archived_Expectation_Category>
</wd:Report_Entry>
</wd:Report_Data>
預期 Output:
<wd:Report_Data xmlns:wd="ur">
<wd:Report_entry>
<wd:Archived_Employee_ID>XYZ</wd:Archived_Employee_ID>
<wd:AE_group>
<wd:Archived_Expectation>Increase complaint statistics.</wd:Archived_Expectation>
<wd:Archived_Expectation>Verantwortungsbereich</wd:Archived_Expectation>
</wd:AE_group>
<wd:AE_Category_Group><wd:Archived_Expectation_Category>Roles, Responsibilities &
Competencies</wd:Archived_Expectation_Category>
<wd:Archived_Expectation_Category>
Competencies</wd:Archived_Expectation_Category></wd:AE_Category_Group>
</wd:Report_entry>
<wd:Report_entry>
<wd:Archived_Employee_ID>123</wd:Archived_Employee_ID>
<wd:AE_group>
<wd:Archived_Expectation>Verantwortungsbereich: 5%</wd:Archived_Expectation>
</wd:AE_group>
<wd:AE_Category_Group><wd:Archived_Expectation_Category>
Role</wd:Archived_Expectation_Category> </wd:AE_Category_Group>
</wd:Report_entry>
</wd:Report_Data>
由於您有效地在<xsl:template name="Fix">
中進行分組,我不明白您為什么不使用for-each-group
<xsl:template name="Fix">
<wd:AE_group>
<xsl:for-each-group select="current-group()/wd:Archived_Expectation" group-by=".">
<xsl:copy-of select="." />
</xsl:for-each-group>
</wd:AE_group>
<wd:AE_Category_Group>
<xsl:for-each-group select="current-group()/wd:Archived_Expectation_Category" group-by=".">
<xsl:copy-of select="." />
</xsl:for-each-group>
</wd:AE_Category_Group>
</xsl:template>
如果您願意(我不會),您也可以遍歷distinct-values()
) :
<xsl:for-each select="distinct-values(current-group()/wd:Archived_Expectation)">
<wd:Archived_Expectation>
<xsl:copy-of select="." />
</wd:Archived_Expectation>
</xsl:for-each>
沒有多少你可以干凈純粹的 stream 在這里,因為你想使用for-each-group group-by
和group-by
表達式選擇一個子元素(這不是“靜止的”)所以唯一的方法是使用copy-of()
在分組人口中
<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xpath-default-namespace="ur" xmlns:wd="ur">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:mode on-no-match="shallow-copy" streamable="yes"/>
<xsl:template match="Report_Data">
<xsl:copy>
<xsl:for-each-group select="Report_Entry!copy-of()" group-by="Archived_Employee_ID">
<xsl:copy>
<xsl:copy-of select="Archived_Employee_ID"/>
<wd:AE_group>
<xsl:for-each-group select="current-group()/Archived_Expectation" group-by=".">
<xsl:copy-of select="." />
</xsl:for-each-group>
</wd:AE_group>
<wd:AE_Category_Group>
<xsl:for-each-group select="current-group()/Archived_Expectation_Category" group-by=".">
<xsl:copy-of select="." />
</xsl:for-each-group>
</wd:AE_Category_Group>
</xsl:copy>
</xsl:for-each-group>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
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