/**
* Extract and return service locator from {@link javax.ws.rs.core.FeatureContext featureContext}.
* The method can be used to inject custom types into a {@link javax.ws.rs.core.Feature}.
*
* <p>Note that features are utilized during initialization phase when not all providers are
* registered yet. It is undefined which injections are already available in this phase.
*
* @param featureContext Feature context.
* @return Service locator.
* @throws java.lang.IllegalArgumentException when {@code writerInterceptorContext} is not a
* default Jersey instance provided by Jersey in {@link
* javax.ws.rs.core.Feature#configure(javax.ws.rs.core.FeatureContext)} method.
*/
public static ServiceLocator getServiceLocator(FeatureContext featureContext) {
if (!(featureContext instanceof ServiceLocatorSupplier)) {
throw new IllegalArgumentException(
LocalizationMessages.ERROR_SERVICE_LOCATOR_PROVIDER_INSTANCE_FEATURE_CONTEXT(
featureContext.getClass().getName()));
}
return ((ServiceLocatorSupplier) featureContext).getServiceLocator();
}
