private synchronized <T extends SchemaSourceRepresentation> void removeSource(
final PotentialSchemaSource<?> source, final SchemaSourceRegistration<?> reg) {
final Multimap<Class<? extends SchemaSourceRepresentation>, AbstractSchemaSourceRegistration<?>>
m = sources.get(source.getSourceIdentifier());
if (m != null) {
m.remove(source.getRepresentation(), reg);
for (SchemaListenerRegistration l : listeners) {
l.getInstance().schemaSourceUnregistered(source);
}
if (m.isEmpty()) {
sources.remove(source.getSourceIdentifier());
}
}
}
private synchronized <T extends SchemaSourceRepresentation> void addSource(
final PotentialSchemaSource<T> source, final AbstractSchemaSourceRegistration<T> reg) {
ListMultimap<Class<? extends SchemaSourceRepresentation>, AbstractSchemaSourceRegistration<?>>
m = sources.get(source.getSourceIdentifier());
if (m == null) {
m = ArrayListMultimap.create();
sources.put(source.getSourceIdentifier(), m);
}
m.put(source.getRepresentation(), reg);
final Collection<PotentialSchemaSource<?>> reps =
Collections.<PotentialSchemaSource<?>>singleton(source);
for (SchemaListenerRegistration l : listeners) {
l.getInstance().schemaSourceRegistered(reps);
}
}
@Override
public <T extends SchemaSourceRepresentation> SchemaSourceRegistration<T> registerSchemaSource(
final SchemaSourceProvider<? super T> provider, final PotentialSchemaSource<T> source) {
final PotentialSchemaSource<T> src = source.cachedReference();
final AbstractSchemaSourceRegistration<T> ret =
new AbstractSchemaSourceRegistration<T>(provider, src) {
@Override
protected void removeRegistration() {
removeSource(src, this);
}
};
addSource(src, ret);
return ret;
}