com.dremio.nessie.iceberg.spark.NessieIcebergSource Maven / Gradle / Ivy

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/*
 * Copyright (C) 2020 Dremio
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.dremio.nessie.iceberg.spark;

import java.util.Map;

import org.apache.hadoop.conf.Configuration;
import org.apache.iceberg.Table;
import org.apache.iceberg.spark.source.IcebergSource;

import com.dremio.nessie.iceberg.NessieCatalog;
import com.dremio.nessie.iceberg.ParsedTableIdentifier;

/**
 * Get a table from an Iceberg Nessie Catalog.
 */
public class NessieIcebergSource extends IcebergSource {

  @Override
  protected Table findTable(Map options, Configuration conf) {
    String path = options.get("path");
    if (path == null) {
      throw new IllegalArgumentException("Cannot open table: path is not set");
    }
    ParsedTableIdentifier identifier = ParsedTableIdentifier.getParsedTableIdentifier(path, options);
    NessieCatalog catalog = new NessieCatalog(conf, identifier.getReference());
    return catalog.loadTable(identifier.getTableIdentifier());
  }

}