"Create Adapter from the configured EntityIterator '{}' to the " +
"required EntityScoreProvider as needed together with the " +
"configured EntityDataIterable '{}'",
idIterator.getClass(), dataIterable.getClass());
indexer = new IndexerImpl(dataIterable,
new EntityIneratorToScoreProviderAdapter(idIterator),
config.getNormaliser(),destination, processors,
config.getIndexedEntitiesIdsFile(),postProcessors);
} else {
log.error("Invalid Indexing Source configuration: ");
log.error(" - To iterate over the data and lookup scores one need to " +