XPath selector fails to select messages correctly when the expression evaluates
to 'true'
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Key: AMQ-2179
URL: https://issues.apache.org/activemq/browse/AMQ-2179
Project: ActiveMQ
Issue Type: Bug
Components: Selector
Affects Versions: 5.2.0, 5.1.0, 5.0.0
Environment: Windows XP
Reporter: Giovani Seben
Fix For: 5.3.0
Currently the XalanXPathEvaluator class will return 'true' or 'false' based on
the existence of a node in the XML document that matches the XPath expression.
However, XPath expressions themselves can return values of true or false based
on a comparison criteria.
For example, for an input message:
{code}
<root>
<a key='first' num='1'/>
<b key='second' num='2'>b</b>
</root>
{code}
A consumer using an XPath selector with an expression such as:
{code}
XPATH '/root/b/text()="b"'
{code}
should successfully select and consume the message above.
The evaluator today would attempt to retrieve a XML node with that expression,
but it would fail and return false since the returned value of the expression
is a Boolean.
The XPath Selector should be able to handle Boolean expressions.
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