Source code for large_image_source_rasterio.girder_source

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#  Copyright Kitware Inc.
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#  Licensed under the Apache License, Version 2.0 ( the "License" );
#  you may not use this file except in compliance with the License.
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#    http://www.apache.org/licenses/LICENSE-2.0
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import packaging.version  # noqa F401
from girder_large_image.girder_tilesource import GirderTileSource

from . import RasterioFileTileSource




class RasterioGirderTileSource(RasterioFileTileSource, GirderTileSource):
    """
    Provides tile access to Girder items for rasterio layers.
    """

    name = 'rasterio'
    cacheName = 'tilesource'



    @staticmethod
    def getLRUHash(*args, **kwargs):
        projection = kwargs.get('projection', args[1] if len(args) >= 2 else None)
        unitPerPixel = kwargs.get('unitsPerPixel', args[3] if len(args) >= 4 else None)

        return (
            GirderTileSource.getLRUHash(*args, **kwargs) +
            f',{projection},{unitPerPixel}'
        )