根据大小拆分xml元素

Question

Given the following XML example file:

<root>
<UserList>
    <UserDetails>
        <Info1>
            <Info1_Id>AA</Info1_Id>
        </Info1>
        <Info2>
            <Info2_Id>BB</Info2_Id>
        </Info2>
    </UserDetails>
    <UserAddress>
        <State>Maharastra</State>
        <AddressDetails>
            <City>Mumbai</City>
            <Address>Andheri Kurla Road, Mumbai</Address>
        </AddressDetails>
    </UserAddress>
    <UserAddress>
        <State>Karnataka</State>
        <AddressDetails>
            <City>Bangalore</City>
            <Address>ITPL Bangalore</Address>
        </AddressDetails>
        <AddressDetails>
            <City>Bangalore</City>
            <Address>XYZ Services Ltd in Whitefield Main Road, Bangalore</Address>
        </AddressDetails>
    </UserAddress>
</UserList>

I want to perform an XSL transformation to split and duplicate the element if Address length is more then 30. If address length is more then 30, First element will contain first 30 characters and new(duplicated) element will contain next 30 characters, so on.

Expected output:

<root>
<UserList>
    <UserDetails>
        <Info1>
            <Info1_Id>AA</Info1_Id>
        </Info1>
        <Info2>
            <Info2_Id>BB</Info2_Id>
        </Info2>
    </UserDetails>
    <UserAddress>
        <State>Maharastra</State>
        <AddressDetails>
            <City>Mumbai</City>
            <Address>Andheri Kurla Road, Mumbai</Address>
        </AddressDetails>
    </UserAddress>
    <UserAddress>
        <State>Karnataka</State>
        <AddressDetails>
            <City>Bangalore</City>
            <Address>ITPL Bangalore</Address>
        </AddressDetails>
        <AddressDetails>
            <City>Bangalore</City>
            <Address>XYZ Services Ltd in Whitefield</Address>
        </AddressDetails>
        <AddressDetails>
            <City>Bangalore</City>
            <Address> Main Road, Bangalore</Address>
        </AddressDetails>
    </UserAddress>
</UserList>

How It can be achieved. Thanks in Advance for any help.

Answer 1

This will only handle addresses up to 90 characters. But, you can extend that by adding more if's to the AddressDetails template according to the pattern.

 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
      xmlns:exslt ="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="exslt">
      <xsl:output method="xml" indent="yes"/>


    <xsl:template match="AddressDetails">
      <xsl:copy>
        <xsl:apply-templates select="node() | @*">
          <xsl:with-param name="address" select="substring(Address, 1, 30)"/>
        </xsl:apply-templates>
      </xsl:copy>
      <xsl:if test="string-length(Address) &gt; 30">
        <xsl:copy>
          <xsl:apply-templates select="node() | @*">
            <xsl:with-param name="address" select="substring(Address, 31, 30)"/>
          </xsl:apply-templates>
        </xsl:copy>
      </xsl:if>
      <xsl:if test="string-length(Address) &gt; 60">
        <xsl:copy>
          <xsl:apply-templates select="node() | @*">
            <xsl:with-param name="address" select="substring(Address, 61, 30)"/>
          </xsl:apply-templates>
        </xsl:copy>
      </xsl:if>
      <!-- etc. -->
    </xsl:template>

    <xsl:template match="Address">
      <xsl:param name="address"/>
      <xsl:copy>
        <xsl:apply-templates select="@*"/>
        <xsl:value-of select="$address"/>
      </xsl:copy>
    </xsl:template>

    <xsl:template match="node()|@*">
      <xsl:copy>
        <xsl:apply-templates select="node()|@*"/>
      </xsl:copy>
    </xsl:template>


  </xsl:stylesheet>