[CAMEL-16865] Xtokenize does not track a level up again once it detects a non matching namespace

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.11.1
• Fix Version/s: 3.7.6, 3.11.2, 3.12.0
• Component/s: camel-core
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Ruben Gerits
• Created: 16/Aug/21 06:55
• Updated: 16/Aug/21 09:08
• Resolved: 16/Aug/21 09:08

Description

When trying to find all items of a specific namespace within a parent tag it will stop detecting the children once it comes across a parent tag that does not have any child elements within this namespace. 

It seems that the code to go up a level again is only triggered once a matching child element has been found. If no elements are found this logic is not triggered, even though the xml tag ends at that level.

For example having XML:

<?xml version='1.0' encoding='UTF-8'?>
<greatgrandparent xmlns='urn:g' xmlns:c='urn:c' xmlns:x='urn:x'>
    <grandparent>
        <x:uncle>bob</x:uncle>
        <x:aunt>emma</x:aunt>
    </grandparent>
    <grandparent>
        <c:parent some_attr='1'>
            <c:child some_attr='a' anotherAttr='a'></c:child>
            <c:child some_attr='b' anotherAttr='b' />
        </c:parent>
        <c:parent some_attr='2'>
            <c:child some_attr='c' anotherAttr='c'></c:child>
            <c:child some_attr='d' anotherAttr='d' />
        </c:parent>
    </grandparent>
    <grandparent>
        <x:uncle>ben</x:uncle>
        <x:aunt>jenna</x:aunt>
        <c:parent some_attr='3'>
            <c:child some_attr='e' anotherAttr='e'></c:child>
            <c:child some_attr='f' anotherAttr='f' />
        </c:parent>
    </grandparent>
</greatgrandparent>
 

And we run the xtokenize expression as following (within test class XMLTokenExpressionIteratorTest):

nsmap.put("X", "urn:x");
invokeAndVerify("//G:grandparent/X:*",
        'i', new ByteArrayInputStream(TEST_BODY_MIXED_CHILDREN), RESULTS_AUNT_AND_UNCLE);

As a result we now get:

<x:uncle xmlns=\"urn:g\" xmlns:x=\"urn:x\" xmlns:c=\"urn:c\">bob</x:uncle>
<x:aunt xmlns=\"urn:g\" xmlns:x=\"urn:x\" xmlns:c=\"urn:c\">emma</x:aunt>

This means it stops processing at the moment it got to the grandparent tag that only has <c:child> elements.

The expected result would be:

<x:uncle xmlns=\"urn:g\" xmlns:x=\"urn:x\" xmlns:c=\"urn:c\">bob</x:uncle>
<x:aunt xmlns=\"urn:g\" xmlns:x=\"urn:x\" xmlns:c=\"urn:c\">emma</x:aunt>
<x:uncle xmlns=\"urn:g\" xmlns:x=\"urn:x\" xmlns:c=\"urn:c\">ben</x:uncle>
<x:aunt xmlns=\"urn:g\" xmlns:x=\"urn:x\" xmlns:c=\"urn:c\">jenna</x:aunt>

Issue Links

• links to: GitHub Pull Request #5955