@CliAvailabilityIndicator({DESTROY_DATA_SOURCE})
  public boolean commandAvailable() {
    return isOnlineCommandAvailable();
  }
@throws IllegalStateException if the data source is used by a jdbc-mapping. The exception
        message names the region using this data source
geode-connectors/src/main/java/org/apache/geode/connectors/jdbc/internal/cli/DestroyDataSourceCommand.java