private void handleAddQuery(ProviderAddQueryRequestMessage message) {
TimelineQuery query = message.getQuery();
// create the provider
TimelineProvider provider = instantiateProvider(query.getQueryClass());
// initialize it
provider.initialize(new ProviderContextImpl(query));
// remember it
providers.put(query.getQueryID(), provider);
}
private void handleRemoveQuery(ProviderRemoveQueryRequestMessage message) {
// remove the provider from the map
TimelineProvider provider = providers.remove(message.getQueryID());
provider.shutdown();
}