Examples with MetadataProvider io.trino.spi.connector.MetadataProvider used on opensource projects

Example 1 with MetadataProvider

use of io.trino.spi.connector.MetadataProvider in project trino by trinodb.

the class ViewReaderUtil method coralTableRedirectionResolver.

private static CoralTableRedirectionResolver coralTableRedirectionResolver(ConnectorSession session, BiFunction<ConnectorSession, SchemaTableName, Optional<CatalogSchemaTableName>> tableRedirectionResolver, MetadataProvider metadataProvider) {
    return schemaTableName -> tableRedirectionResolver.apply(session, schemaTableName).map(target -> {
        ConnectorTableSchema tableSchema = metadataProvider.getRelationMetadata(session, target).orElseThrow(() -> new TableNotFoundException(target.getSchemaTableName(), format("%s is redirected to %s, but that relation cannot be found", schemaTableName, target)));
        List<Column> columns = tableSchema.getColumns().stream().filter(columnSchema -> !columnSchema.isHidden()).map(columnSchema -> new Column(columnSchema.getName(), toHiveType(columnSchema.getType()), Optional.empty())).collect(toImmutableList());
        Table table = Table.builder().setDatabaseName(schemaTableName.getSchemaName()).setTableName(schemaTableName.getTableName()).setTableType(EXTERNAL_TABLE.name()).setDataColumns(columns).withStorage(storage -> storage.setStorageFormat(fromHiveStorageFormat(TEXTFILE))).setOwner(Optional.empty()).build();
        return toMetastoreApiTable(table);
    });
}