Martin Desruisseaux created SIS-393:
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Summary: Missing META-INF service declarations for authority
factories
Key: SIS-393
URL: https://issues.apache.org/jira/browse/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:
{code:java}
Set<CoordinateOperation> createFromCoordinateReferenceSystemCodes(String
sourceCRS, String targetCRS)
{code}
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:
{code:java}
CoordinateOperationAuthorityFactory factory =
(CoordinateOperationAuthorityFactory) CRS.getAuthorityFactory("EPSG");
{code}
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