Removing an XML element based on the value of other element - xslt

Question

I have to achieve below.
if <m_control>/<initiator_id> is Dummy then the xml element, <note>/<reason> should be removed.Below is the hirarchy of the note element.
<o:m_content/o:application/o:product/o:client_specific_illustration/o:note>
Below is the sample xml:
<?xml version="1.0"?>
<message xmlns="http://www.origoservices.com" xmlns:ns2="http://www.w3.org/2000/09/xmldsig#">
<m_control>
<expected_response_type>synchronous</expected_response_type>
<initiator_id>Dummy</initiator_id>
<user_id>Dummy</user_id>
<responder_id>Responder</responder_id>
</m_control>
<m_content>
<b_control>
<message_version_number>3.7</message_version_number>
<submission_date>2014-04-14</submission_date>
</b_control>
<intermediary type="Test">
<rdr_basis_of_sale>
<advised_category>Independent</advised_category>
</rdr_basis_of_sale>
</intermediary>
<application>
<address id="ADPC2">
<postcode>AB24 3DB</postcode>
</address>
<address id="ADPC1">
<postcode>B14 7JG</postcode>
</address>
<personal_client id="PC1">
<title>Mr</title>
<forenames>Test</forenames>
<surname>FLtwelve</surname>
<sex>Male</sex>
<marital_status>Married</marital_status>
<date_of_birth>1950-10-16</date_of_birth>
<employment_contract>
<occupation code="AAB00021">Actuary</occupation>
<full_time_ind>No</full_time_ind>
</employment_contract>
<smoker_ind>No</smoker_ind>
<residential_status>In Own Home - With Someone Else</residential_status>
<home_address address_id="ADPC1"/>
<enhanced_underwriting>
<medical_conditions/>
</enhanced_underwriting>
<tpsdata>
<postcode xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">test</postcode>
</tpsdata>
</personal_client>
<personal_client id="PC2">
<employment_contract>
<occupation code="WAB02558">Wig Maker</occupation>
<full_time_ind>Yes</full_time_ind>
</employment_contract>
<smoker_ind>Yes</smoker_ind>
<residential_status>In Own Home - Alone</residential_status>
<home_address address_id="ADPC2"/>
<enhanced_underwriting>
<medical_conditions/>
<lifestyle>
<height units="Centimetre">180</height>
<weight units="Kilogram">70</weight>
<waist units="Centimetre">81</waist>
<units_of_alcohol_per_week>1</units_of_alcohol_per_week>
<smoking_details>
<regular_smoker_ind>Yes</regular_smoker_ind>
<current_smoking>
<number_of_cigarettes_per_day>4</number_of_cigarettes_per_day>
<number_of_cigars_per_day>0</number_of_cigars_per_day>
<rolling_tobacco_per_week units="Gram">0</rolling_tobacco_per_week>
<pipe_tobacco_per_week units="Gram">0</pipe_tobacco_per_week>
<start_date>1985-09</start_date>
</current_smoking>
</smoking_details>
</lifestyle>
</enhanced_underwriting>
<tpsdata>
<postcode xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">AB24 3DB</postcode>
</tpsdata>
</personal_client>
<product type="Compulsory Purchase Annuity" product_code="CPA">
<open_market_option_ind>Yes</open_market_option_ind>
<annuity type="Non Protected Rights">
<annuitant sequence_number="1" personal_client_id="PC1"/>
<with_profit_ind>No</with_profit_ind>
<contribution legislation_applicable="Post 1997">
<amount currency="GBP">391586</amount>
<source_details>
<product_type>Occupational Scheme - Defined Contribution</product_type>
<product_provider_name>Other</product_provider_name>
<transfer_ind>No</transfer_ind>
</source_details>
<adviser_charges_applicable>
<adviser_charge_applicable adviser_charge_id="ac1"/>
</adviser_charges_applicable>
</contribution>
<payment_frequency>Annually</payment_frequency>
<payment_timing_code>In Advance</payment_timing_code>
<escalation>
<change_index>Level</change_index>
<lpi_lag_basis>Statutory</lpi_lag_basis>
<proportionate_escalation_ind>No</proportionate_escalation_ind>
</escalation>
<payment_period>
<start_basis>Specified Date</start_basis>
<start_date>2014-04-14</start_date>
</payment_period>
<guaranteed_period>
<years>5</years>
</guaranteed_period>
<commuted_ind>No</commuted_ind>
<with_proportion_ind>No</with_proportion_ind>
<reversionary_annuity type="Spouse" legislation_applicable="Post 1997">
<annuitant personal_client_id="PC2"/>
<number_of_dependants>1</number_of_dependants>
<fraction_of_original_payment>
<numerator>10</numerator>
<denominator>10</denominator>
</fraction_of_original_payment>
<payment_period>
<start_basis>Next Due Date</start_basis>
</payment_period>
<overlap_ind>No</overlap_ind>
<spouse_remarriage_cease_ind>Yes</spouse_remarriage_cease_ind>
</reversionary_annuity>
</annuity>
<adviser_charges>
<adviser_charge id="ac1">
<type>Adviser</type>
<amount currency="GBP">7831.72</amount>
<facilitated_from>Annuity In Payment</facilitated_from>
<facilitated_before_product_investment_ind>Yes</facilitated_before_product_investment_ind>
<payment_frequency>Single</payment_frequency>
<reason>Initial</reason>
</adviser_charge>
</adviser_charges>
<illustration_basis>
<annuity_calculation_required>Payment</annuity_calculation_required>
</illustration_basis>
<client_specific_illustration>
<expiry_date>2014-04-28</expiry_date>
<note>
<reason>reason for failure is specified over here</reason>
</note>
<pension_annuity type="Non Protected Rights">
<total_amount currency="GBP">18539.33</total_amount>
<reversionary_annuity>
<total_amount currency="GBP">18539.33</total_amount>
</reversionary_annuity>
</pension_annuity>
<adviser_charges>
<adviser_charge>
<adviser_charge_requested adviser_charge_id="ac1"/>
<type>Adviser</type>
<amount currency="GBP">7831.72</amount>
<facilitated_from>Annuity In Payment</facilitated_from>
<facilitated_before_product_investment_ind>Yes</facilitated_before_product_investment_ind>
<payment_frequency>Single</payment_frequency>
<reason>Initial</reason>
</adviser_charge>
</adviser_charges>
<tpsdata>
<guaranteed_quote>Yes</guaranteed_quote>
</tpsdata>
</client_specific_illustration>
</product>
<document_out type="Client Specific Illustration">
<print_requirements>
<distribution_method>Web Hosted</distribution_method>
<web_host_format>PDF</web_host_format>
</print_requirements>
</document_out>
</application>
</m_content>
</message>
Below is the xslt that I have tried, but I am not getting the expected output as the note/reason element is not getting removed.
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:o="http://www.origoservices.com" xmlns:dp="http://www.datapower.com/extensions" xmlns:fn="http://www.w3.org/2005/xpath-functions" xmlns:date="http://exslt.org/dates-and-times" version="1.0" extension-element-prefixes="dp" exclude-result-prefixes="fn date">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:output method="xml" indent="yes"/>
<xsl:template match="node()|#*">
<xsl:copy>
<xsl:apply-templates select="node()|#*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="o:m_content/o:application/o:product/o:client_specific_illustration/o:note[../../../../../o:m_control/o:initiator_id='TEX']">
</xsl:template>
</xsl:stylesheet>
Could anyone please let me know, where am I comiting mistake?
Regards.

Answer 1

Just have a variable to store the initiator_id. As below:
<xsl:variable name="test" select="o:message/o:m_control/o:initiator_id"/>
Then, test the note node
<xsl:template match="o:note[parent::o:client_specific_illustration]">
<xsl:choose>
<xsl:when test="$test='Dummy'"></xsl:when>
<xsl:otherwise>
<xsl:copy>
<xsl:apply-templates/>
</xsl:copy>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
The complete stylesheet therefore is:
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:o="http://www.origoservices.com" xmlns:dp="http://www.datapower.com/extensions"
xmlns:fn="http://www.w3.org/2005/xpath-functions" xmlns:date="http://exslt.org/dates-and-times"
version="1.0" extension-element-prefixes="dp" exclude-result-prefixes="fn date">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:output method="xml" indent="yes"/>
<xsl:variable name="test" select="o:message/o:m_control/o:initiator_id"/>
<xsl:template match="node()|#*">
<xsl:copy>
<xsl:apply-templates select="node()|#*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="o:note[parent::o:client_specific_illustration]">
<xsl:choose>
<xsl:when test="$test='Dummy'"></xsl:when>
<xsl:otherwise>
<xsl:copy>
<xsl:apply-templates/>
</xsl:copy>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
as an alternative, you can just use
<xsl:template match="o:m_content[preceding-sibling::o:m_control/o:initiator_id='Dummy']/o:application/o:product/o:client_specific_illustration/o:note"/>