@Override
  public String toString() {
    return "FlinkUnifiedCatalog{"
        + "name='"
        + getName()
        + '\''
        + ", defaultDatabase='"
        + getDefaultDatabase()
        + '\''
        + ", amsUri='"
        + amsUri
        + '\''
        + ", amoroCatalogName='"
        + amoroCatalogName
        + '\''
        + ", availableCatalogs size="
        + availableCatalogs.size()
        + "}";
  }
Get the original flink catalog for the given table, if the flink catalog is not exists in the
cache, would create a new original flink catalog for this table format.

@param amoroTable amoroTable
@return original Flink catalog
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/catalog/FlinkUnifiedCatalog.java