Hi,
I'm writing you to start the process to graduate the gt-transform module to
supported status.
For those that don't know, the gt-transform module provides a way to create
wrappers around SimpleFeatureSource/SimpleFeatureStore that do alter the
attributes exposed via:
* attribute selection
* attribute renaming
* creation of new attributes as expressions of other attributes
All of the above is achieved by associating the new set of attributes each
with a OGC Expression, like in the test cases, see the three methods
setting up some transformations:
https://github.com/geotools/geotools/blob/master/modules/unsupported/transform/src/test/java/org/geotools/data/transform/AbstractTransformTest.java
The module takes care of all needed filter and name transformations, and if
the transformations are invertible (that is, pretty much just attribute
rename at the moment) then it also preserves the writability of the
original SimpleFeatureStore.
The test coverage is good (69%), IP wise there are no issues, wrote all the
code myself (though I guess I need to add a review.txt in there, right?),
there are no bug reports in jira.
There are no docs, but I plan to add a page of docs turning the unit tests
into examples along with the pull request that will graduate the module.
Ah, the final location is a bit of a mystery... this thing is not a plugin
in the strict sense, there is no factory and no store, you are supposed to
call TransformFactory.transform(source, targetName,
listOfAttributeDefinitions)
in order to get the transformed source/store.
As such is more similar to a ReprojectingFeatureCollection than a stand
alone data store... so... where should it go? Library?
However, setting up a factory and store is not un-thinkable, but it would
be a bit odd to have a store whose one of the source params is another
store...
Any feedback?
Cheers
Andrea
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