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Extractor Plugin Does Not Support XPath Functions

Related to Copied

Geneos Copied

Using the Extractor plugin in Geneos and attempting to use XPath functions.

Problem Copied

When using the Extractor plugin in Geneos, XPath functions such as concat() are not supported inside or elements. If you attempt to use expressions like:

concat([8]/text(), 'test')

the Extractor will not return the expected combined value. To build unique row names, use multiple elements inside instead of XPath functions.

Possible cause(s) Copied

• Root Cause 1: The Extractor plugin does not support XPath functions such as concat().
• Root Cause 2: Mismatch between <columns> definitions and <cells> extraction causing column misalignment.
• Root Cause 3: The <name> or <value> section contains a single XPath expression expecting function evaluation.

Possible solution(s) Copied

• Solution Root Cause 1: Replace XPath function usage with multiple <xpath> elements inside <name>.

  Sample:

  <row>
      <xpath>data/array</xpath>
      <name>
          <xpath>
              <xpath>[8]/text()</xpath>
          </xpath>
          <xpath>
              <xpath>[1]/text()</xpath>
          </xpath>
      </name>
  </row>
  

  The Extractor concatenates these string values in order, effectively mimicking concat().

• Solution Root Cause 2: Ensure each <xpath> element returns a simple string value (e.g., text()), not a function call.

• Solution Root Cause 3: Ensure thethe number of <column> elements matches the number of <cell> values.

• The schema XPath (e.g., schema/object/colName) matches the structure of the sampler XML.

Related article(s) Copied

• https://docs.itrsgroup.com/docs/geneos/current/collection/extractor/index.html#xpath-method