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From "Martin Desruisseaux (JIRA)" <>
Subject [jira] [Created] (SIS-393) Missing META-INF service declarations for authority factories
Date Wed, 31 Jan 2018 18:06:00 GMT
Martin Desruisseaux created SIS-393:

             Summary: Missing META-INF service declarations for authority factories
                 Key: SIS-393
             Project: Spatial Information Systems
          Issue Type: Task
          Components: Referencing
    Affects Versions: 0.8, 0.7
            Reporter: Martin Desruisseaux
            Assignee: Martin Desruisseaux
             Fix For: 1.0

The {{core/sis-referencing/src/main/resources/META-INF/services/}} directory registers a {{CRSAuthorityFactory}},
but not yet any {{CSAuthorityFactory}}, {{DatumAuthorityFactory}} or {{CoordinateOperationAuthorityFactory}}.
The later in particular would be useful for an easier access to the following method:

Set<CoordinateOperation> createFromCoordinateReferenceSystemCodes(String sourceCRS,
String targetCRS)

This task can be done more cleanly in Java 9 using the new {{ServiceLoader}} capability,
but workaround are possible in Java 8 too. In the meantime, users can get the factory with
following code. This is unsafe, but should work at least with SIS 0.8:

CoordinateOperationAuthorityFactory factory = (CoordinateOperationAuthorityFactory) CRS.getAuthorityFactory("EPSG");

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