How to use

restrictTo

method

in

org.janusgraph.diskstorage.configuration.Configuration

  @Override
  public Configuration restrictTo(String... umbrellaElements) {
    return new MergedConfiguration(first.restrictTo(umbrellaElements), second.restrictTo(umbrellaElements));
  }
}

  @Override
  public Configuration restrictTo(String... umbrellaElements) {
    return config.restrictTo(concat(umbrellaElements));
  }
};

private static Map<String, IndexProvider> getIndexes(Configuration config) {
  ImmutableMap.Builder<String, IndexProvider> builder = ImmutableMap.builder();
  for (String index : config.getContainedNamespaces(INDEX_NS)) {
    Preconditions.checkArgument(StringUtils.isNotBlank(index), "Invalid index name [%s]", index);
    log.info("Configuring index [{}]", index);
    IndexProvider provider = getImplementationClass(config.restrictTo(index), config.get(INDEX_BACKEND,index),
        StandardIndexProvider.getAllProviderClasses());
    Preconditions.checkNotNull(provider);
    builder.put(index, provider);
  }
  return builder.build();
}

public KCVSLogManager getKCVSLogManager(String logName) {
  Preconditions.checkArgument(configuration.restrictTo(logName).get(LOG_BACKEND).equalsIgnoreCase(LOG_BACKEND.getDefaultValue()));
  return (KCVSLogManager)getLogManager(logName);
}

private static LogManager getLogManager(Configuration config, String logName, KeyColumnValueStoreManager sm) {
  Configuration logConfig = config.restrictTo(logName);
  String backend = logConfig.get(LOG_BACKEND);
  if (backend.equalsIgnoreCase(LOG_BACKEND.getDefaultValue())) {
    return new KCVSLogManager(sm,logConfig);
  } else {
    Preconditions.checkArgument(config!=null);
    LogManager lm = getImplementationClass(logConfig,logConfig.get(LOG_BACKEND),REGISTERED_LOG_MANAGERS);
    Preconditions.checkNotNull(lm);
    return lm;
  }
}