Open ktk opened 1 year ago
I understand this as follows: carml requires different rml:logicalSource
definitions, depending on if either a stream source or a files source should be used.
For stream sources:
rml:logicalSource [
rml:source [
a carml:Stream;
carml:streamName "";
...
];
...
];
For file sources:
rml:logicalSource [
rml:source [
carml:url "eCH0071.xml";
...
];
...
];
Using output carml
in xrm version 1.2.0 generates the "stream sources" definition.
The new requirement is now, that both variations can be generated from xrm. Is that correct @ktk ?
Correct interpretation.
It would be nice as people can use XRM and create carml output without having to interact with streams that way. For those that do not necessarily use a barnard59 pipeline, that's probably a nice thing to have.
Ran into this again btw. I think for pure carml-cli mode, this feature would be useful. So either have an anonymous (empty) stream or a filename with carml:url
There is a new cli tool for carml available: https://github.com/carml/carml-jar
I could get it to work with XRM
carml
output but I had to figure out how to do it properly. With the current configuration I can only get it to work with piping the file as a stream and I have to do the XRM source like this:source ""
. This generates:I can then run:
cat input/eCH0071.xml| java -jar bin/carml-jar-1.0.0-SNAPSHOT-0.4.4.jar map -m src-gen/mapping.carml.ttl
However, I cannot run it directly from a file, I always have to pipe it. So I checked out the carml docs and it says the name can be left out or empty, so that seems to be correct.
So I checked out the ontology and I found stream:url, so I changed the generated output to this (manually):
And then I can run it directly from file:
java -jar bin/carml-jar-1.0.0-SNAPSHOT-0.4.4.jar map -m src-gen -rsl input -of ttl -P
This probably would work in XRM via
rml
output but I use the XML Namespace extension so I have to stick with carml-syntax.Not sure how to handle that properly in XRM though, would be nice if both options could be generated.