提问人：Prashant Tripathi 提问时间：11/8/2023 最后编辑：Siebe JongebloedPrashant Tripathi 更新时间：11/14/2023 访问量：86
根据某些条件在父元素下移动元素
Moving an element under a parent element based upon some conditions
问：
我是 XSLT 的新手，因此需要有关此问题的一些帮助
如何在XSLT中应用条件，以便
当 CDSwaps 和 CMBX 同时存在时，复制 CDSwaps 下的 CMBX 元素并删除 CMBX
如果原始输入 xml 中没有 CDSwaps，只需将 CMBX 和 CMBX 分别重命名为 CDSwaps 和 CDS
我有以下输入XML
案例 1
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SubmitImportJobRequest xmlns="/cp/bdtbeans">
<User>abc</User>
<Client>qwe</Client>
<Password>00000</Password>
<JobName>CMBX_TEST</JobName>
<UserAssets Owner="abc" EffectiveStartDate="2023-04-03">
<CDSwaps>
<CDS ID="28881002_8" IDType="LOCALID" Name="Buy Protection on Apple Inc" BARRAID="28881002_8" StartDate="2023-12-22" ExpirationDate="2028-12-22" ContractSize="1" AccrualBasis="ACT/360" PriceCurrency="USD" UnderlierID="US037833EJ59" UnderlierIDType="ISIN" DealSpread="100"/>
</CDSwaps>
<CMBXs>
<CMBX ID="32083535_8" IDType="LOCALID" Name="Sell Protection on CMBX.NA.AAA Indices Series 15 V1" BARRAID="32083535_8" ContractSize="1" RecoveryRate="40" PriceCurrency="USD" StartDate="2022-12-20" ExpirationDate="2028-03-09" UnderlierID="137BENAO4" UnderlierIDType="MIP" DealSpread="50"/>
</CMBXs>
</UserAssets>
</SubmitImportJobRequest>
</s:Body>
</s:Envelope>
所需输出
<Logical>
<UserInstruments Effective_Start_Date="2023-04-03" Owner="paqa">
<CDSwaps xmlns="/cp/bdtbeans">
<CDS AccrualBasis="ACT/360" Priority="BARRA" BARRAID="28881002_8" ContractSize="1" CouponFrequency="3M" DealSpread="100" ExpirationDate="2028-12-22" ID="28881002_8" IDType="LOCALID" Name="Buy Protection on Apple Inc" PriceCurrency="USD" RecoveryRate="4.0E1" StartDate="2023-12-22" Und_ID="US037833EJ59" Und_IDType="ISIN"/>
<CDS Priority="BARRA" BARRAID="32083535_8" ContractSize="1" DealSpread="50" ExpirationDate="2028-03-09" ID="32083535_8" IDType="LOCALID" IsCMBX="true" Name="Sell Protection on CMBX.NA.AAA Indices Series 15 V1" PriceCurrency="USD" RecoveryRate="40" StartDate="2022-12-20" Und_ID="137BENAO4" Und_IDType="MIP"/>
</CDSwaps>
</UserInstruments>
</Logical>
案例 2
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SubmitImportJobRequest xmlns="/cp/bdtbeans">
<User>abc</User>
<Client>qwe</Client>
<Password>00000</Password>
<JobName>CMBX_TEST</JobName>
<UserAssets Owner="abc" EffectiveStartDate="2023-04-03">
<CMBXs>
<CMBX ID="32083535_8" IDType="LOCALID" Name="Sell Protection on CMBX.NA.AAA Indices Series 15 V1" BARRAID="32083535_8" ContractSize="1" RecoveryRate="40" PriceCurrency="USD" StartDate="2022-12-20" ExpirationDate="2028-03-09" UnderlierID="137BENAO4" UnderlierIDType="MIP" DealSpread="50"/>
</CMBXs>
</UserAssets>
</SubmitImportJobRequest>
</s:Body>
</s:Envelope>
所需输出
<Logical>
<UserInstruments Effective_Start_Date="2023-04-03" Owner="paqa">
<CDSwaps xmlns="/cp/bdtbeans">
<CDS Priority="BARRA" BARRAID="32083535_8" ContractSize="1" DealSpread="50" ExpirationDate="2028-03-09" ID="32083535_8" IDType="LOCALID" IsCMBX="true" Name="Sell Protection on CMBX.NA.AAA Indices Series 15 V1" PriceCurrency="USD" RecoveryRate="40" StartDate="2022-12-20" Und_ID="137BENAO4" Und_IDType="MIP"/>
</CDSwaps>
</UserInstruments>
</Logical>
用于此转换的 XSLT
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:bdt="/cp/bdtbeans">
<xsl:template match="node() | @*" >
<xsl:copy>
<xsl:apply-templates select="node() | @*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="bdt:CDSwaps">
<xsl:copy>
<xsl:apply-templates select="node() | @*" />
<xsl:apply-templates select="//bdt:CMBX"/>
</xsl:copy>
</xsl:template>
<xsl:template match="bdt:CMBXs"/>
<xsl:template match="bdt:CMBX">
<xsl:element name="CDS">
<xsl:apply-templates select="node() | @*"/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>
如何在XSLT中应用条件，以便仅当输入XML中存在CDSwaps和CMBX标记时才发生所有这些复制和重命名CMBX元素的语句？
答：
0赞
Siebe Jongebloed
11/14/2023
#1
试试这个：
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:bdt="/cp/bdtbeans">
<xsl:strip-space elements="*"/>
<xsl:output indent="yes"/>
<!-- The default copy template -->
<xsl:template match="node() | @*" >
<xsl:copy>
<xsl:apply-templates select="node() | @*"/>
</xsl:copy>
</xsl:template>
<!-- The root template that will apply to the bdt:UserAssets element-->
<xsl:template match="/">
<xsl:apply-templates select=".//bdt:UserAssets"/>
</xsl:template>
<xsl:template match="bdt:UserAssets">
<xsl:element name="Logical">
<xsl:element name="UserInstruments">
<xsl:apply-templates select="@*" />
<!-- Test if one of bdt:CDSwaps/bdt:CDS|bdt:CMBXs/bdt:CMBX is present and if so create CDSwaps-element and apply to those-->
<xsl:if test="bdt:CDSwaps/bdt:CDS|bdt:CMBXs/bdt:CMBX">
<xsl:element name="CDSwaps" namespace="/cp/bdtbeans">
<xsl:apply-templates select="bdt:CDSwaps/bdt:CDS|bdt:CMBXs/bdt:CMBX"/>
</xsl:element>
</xsl:if>
</xsl:element>
</xsl:element>
</xsl:template>
<!-- Match on bdt:CDSwaps/bdt:CDS|bdt:CMBXs/bdt:CMBX and make element CDS-->
<xsl:template match="bdt:CMBX|bdt:CDS">
<xsl:element name="CDS" namespace="/cp/bdtbeans">
<xsl:apply-templates select="node() | @*"/>
</xsl:element>
</xsl:template>
<xsl:template match="@EffectiveStartDate">
<xsl:attribute name="Effective_Start_Date"><xsl:value-of select="."/></xsl:attribute>
</xsl:template>
<xsl:template match="@Owner">
<xsl:attribute name="Owner">paqa</xsl:attribute>
</xsl:template>
</xsl:stylesheet>
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