Re: [xsl] Replacing the element's attribute in sequential order

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

varun bhatnagar varun292006@xxxxxxxxx wrote:
> Hi,
>
> I have few xml files (depends on user how much he/she wants to pass). I
> have to take those files and merge them, so I have created a loop and in
> that I am passing these files one by one. For this I have written few
> rules to merge. But there is this <Procedure> tag where I am stuck. To
> merge this I need to parse each Procedure and have to modify its
> attributes (attrProc and attrLevel). I have to replace the attrProc
> attribute with a sequential value and for me this will set a unique
> "Level" for each Procedure tag and later I will process them based on
> their level.
>
>
> _File1.xml_
>
> *<?xml version="1.0" encoding="UTF-8"?>*
> *<InfoTag>*
> *<Procedure attrProc="TestProcA" attrLevel="1">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> **
> * <Procedure attrProc="TestProcB" attrLevel="2">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> *</InfoTag>*
>
>
> _File2.xml_
> _
> _
> *<?xml version="1.0" encoding="UTF-8"?>*
> *<InfoTag>*
> *<Procedure attrProc="TestProcC" attrLevel="3">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> **
> * <Procedure attrProc="TestProcD" attrLevel="4">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> *</InfoTag>*
>
>
> I am trying to fetch an output file which looks like this:
>
> _Output.xml_
>
> *<InfoTag>*
> *<Procedure attrProc="1" attrLevel="### NOT UNIQUE ###">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> * <Procedure attrProc="2" attrLevel="### NOT UNIQUE ###">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> *<Procedure attrProc="3" attrLevel="### NOT UNIQUE ###">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure>*
> * <Procedure attrProc="4" attrLevel="### NOT UNIQUE ###">*
> *      <downTime>*
> *        <acceptableDownTime>*
> *          <all/>*
> *        </acceptableDownTime>*
> *        <downTimePeriod time="600000000"/>*
> *      </downTime>*
> *    </Procedure> *
> *</InfoTag>*
>
>
> I am thinking of looping it and will count the occurrences of it and
> then I am thinking to replace the value. But I am not able to do that.
> Can anyone tell me how to achieve this. How can I loop every Procedure
> tag and and append the attrProc attribute value in a sequential order?

How do you load the files?

I would simply use Saxon 9 and collection, as in

<xsl:template match="/" name="main">
  <InfoTag>
    <xsl:apply-templates select="collection('.?select=*.xml')//Procedure"/>
  </InfoTag>
</xsl:template>

<xsl:template match="Procedure">
  <Procedure attrProc="{position()}" attrLevel="### NOT UNIQUE ###">
    <xsl:apply-templates/>
  </Procedure>
</xsl:template>

maybe with an additional <xsl:sort select="@attrLevel"/> on the 
apply-templates of the collection, depending on which ordering you need. 
If the name of the files are known then you can of course also do

<xsl:template match="/" name="main">
  <InfoTag>
    <xsl:apply-templates select="for $file in (doc('file1.xml'), 
doc('file2.xml')) return $file//Procedure"/>
  </InfoTag>
</xsl:template>

<xsl:template match="Procedure">
  <Procedure attrProc="{position()}" attrLevel="### NOT UNIQUE ###">
    <xsl:apply-templates/>
  </Procedure>
</xsl:template>