[英]XSL Modify Based on Command Line Param
我有以下XML摘录。 完整的XML是OVF定义。
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.dmtf.org/ovf/envelope/1" xmlns:cim="http://schemas.dmtf.org/wbem/wscim/1/common" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData" xmlns:vmw="http://www.vmware.com/schema/ovf" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" x xml:lang="en-US">
<Item>
<rasd:Caption ovf:msgid="network.eth0.caption"/>
<rasd:Connection>eth0</rasd:Connection>
<rasd:Description ovf:msgid="network.eth0.description"/>
<rasd:ElementName>eth0</rasd:ElementName>
<rasd:InstanceID>13</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
<Item>
<rasd:Caption ovf:msgid="network.eth1.caption"/>
<rasd:Connection>eth1</rasd:Connection>
<rasd:Description ovf:msgid="network.eth1.description"/>
<rasd:ElementName>eth1</rasd:ElementName>
<rasd:InstanceID>14</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
<Item>
<rasd:Caption ovf:msgid="network.eth2.caption"/>
<rasd:Connection>eth2</rasd:Connection>
<rasd:Description ovf:msgid="network.eth2.description"/>
<rasd:ElementName>eth2</rasd:ElementName>
<rasd:InstanceID>15</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
<Item>
<rasd:Caption ovf:msgid="network.eth3.caption"/>
<rasd:Connection>eth3</rasd:Connection>
<rasd:Description ovf:msgid="network.eth3.description"/>
<rasd:ElementName>eth3</rasd:ElementName>
<rasd:InstanceID>16</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
</Envelope>
我正在尝试在<rasd:Connection>eth*</rasd:Connection>
行之前插入<rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
<rasd:Connection>eth*</rasd:Connection>
行,但不是全部<rasd:Connection>eth*</rasd:Connection>
。 到目前为止,我已经获得了以下XSL并可以正常工作,但问题是我必须对要禁用的每个接口进行硬编码。
<xsl:template match="rasd:Connection[text()='eth0']">
<xsl:if test="$disableEths='true'">
<xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
<xsl:copy-of select="."/>
</xsl:if>
</xsl:template>
<xsl:template match="rasd:Connection[text()='eth1']">
<xsl:if test="$disableEths='true'">
<xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
<xsl:copy-of select="."/>
</xsl:if>
</xsl:template>
<xsl:template match="rasd:Connection[text()='eth2']">
<xsl:if test="$disableEths='true'">
<xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
<xsl:copy-of select="."/>
</xsl:if>
</xsl:template>
有没有一种方法可以让用户传入包含要禁用的值的定界列表的参数,如果没有输入任何参数,则不要禁用其中的任何一个? 如果重要,请使用xsltproc作为处理器。
如评论中所建议,用户是否应生成一个XML文件,例如以如下方式命名的DisableItems.xml (顺便说一下,该文件可以使用常规方法从文本分隔文件,.txt,.csv,.tab等生成。语言:C#,Java,Perl,PHP,Python,R,VB ...):
<?xml version="1.0" encoding="UTF-8"?>
<root>
<disableitem>eth1</disableitem>
<disableitem>eth2</disableitem>
<disableitem>eth3</disableitem>
</root>
然后,XSLT可以使用其document()
函数进行相应的搜索。 确保其他xml文件与原始源xml位于同一目录中:
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData">
<xsl:output version="1.0" encoding="UTF-8" indent="yes" />
<xsl:strip-space elements="*"/>
<!-- Identity Transform -->
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="rasd:Connection[text()=document('DisableItems.xml')/root/disableitem]">
<xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
<xsl:copy-of select="."/>
</xsl:template>
</xsl:transform>
输出(注意,在查找xml中未指定的eth0没有false元素)
<?xml version='1.0' encoding='UTF-8'?>
<Envelope xmlns="http://schemas.dmtf.org/ovf/envelope/1" xmlns:cim="http://schemas.dmtf.org/wbem/wscim/1/common" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData" xmlns:vmw="http://www.vmware.com/schema/ovf" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en-US">
<Item>
<rasd:Caption ovf:msgid="network.eth0.caption"/>
<rasd:Connection>eth0</rasd:Connection>
<rasd:Description ovf:msgid="network.eth0.description"/>
<rasd:ElementName>eth0</rasd:ElementName>
<rasd:InstanceID>13</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
<Item>
<rasd:Caption ovf:msgid="network.eth1.caption"/>
<rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
<rasd:Connection>eth1</rasd:Connection>
<rasd:Description ovf:msgid="network.eth1.description"/>
<rasd:ElementName>eth1</rasd:ElementName>
<rasd:InstanceID>14</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
<Item>
<rasd:Caption ovf:msgid="network.eth2.caption"/>
<rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
<rasd:Connection>eth2</rasd:Connection>
<rasd:Description ovf:msgid="network.eth2.description"/>
<rasd:ElementName>eth2</rasd:ElementName>
<rasd:InstanceID>15</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
<Item>
<rasd:Caption ovf:msgid="network.eth3.caption"/>
<rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
<rasd:Connection>eth3</rasd:Connection>
<rasd:Description ovf:msgid="network.eth3.description"/>
<rasd:ElementName>eth3</rasd:ElementName>
<rasd:InstanceID>16</rasd:InstanceID>
<rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
<rasd:ResourceType>10</rasd:ResourceType>
</Item>
</Envelope>
如果使用字符串分隔的值列表以字符串形式传递--stringparam
,则使用xsltproc可以使用EXSLT str:tokenize
函数,如下所示:
<?xml version="1.0" encoding="UTF-8" ?>
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0"
xmlns:str="http://exslt.org/strings"
exclude-result-prefixes="str"
xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData">
<xsl:output indent="yes"/>
<xsl:param name="disableEths" select="'true'"/>
<xsl:param name="con-to-change" select="'eth0,eth1,eth2'"/>
<xsl:template match="@* | node()" name="identity">
<xsl:copy>
<xsl:apply-templates select="@* | node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="rasd:Connection">
<xsl:choose>
<xsl:when test=". = str:tokenize($con-to-change, ',') and $disableEths='true'">
<rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
<xsl:copy-of select="."/>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="identity"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
当然,希望直接在匹配模式中使用参数,但是在XSLT 1.0中不允许在匹配模式中使用变量或参数引用,我认为xsltproc允许,但是在具有match="rasd:Connection[. = str:tokenize($con-to-change, ',')]"
的测试中match="rasd:Connection[. = str:tokenize($con-to-change, ',')]"
我收到一些有关未定义变量的错误消息,因此上述建议将检查移入模板。
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