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RMLio / RML-Processor

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XML iterator seems to ignore tag with "xmlns" #4

Closed alemela closed 8 years ago

alemela commented 8 years ago

For example for: <project xmlns="http://example.org"> the iterator pointing to project leads to nothing.

andimou commented 8 years ago

If the default namespace for XML is overwritten, XPath has no way to refer to it, thus an XPath processor requires to be informed regarding this namespace.

In the case of the RML Processor, you may hard code the prefix default namespace. To be more precise, you may add a custom namespace by updating both of the following two files:

add a custom namespace after line 52 of https://github.com/RMLio/RML-LogicalSourceHandler/blob/master/src/main/java/be/ugent/mmlab/rml/logicalsourcehandler/termmap/concrete/XPathTermMapProcessor.java#L52.

add the same custom namespace and after line 75 of https://github.com/RMLio/RML-Processor/blob/development/src/main/java/be/ugent/mmlab/rml/processor/concrete/XPathProcessor.java#L75