TrackingDatasetProfile.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 gobblin.data.management.retention.profile;

import java.io.IOException;
import java.util.List;
import java.util.Properties;

import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import gobblin.dataset.Dataset;
import gobblin.data.management.retention.dataset.TrackingDataset;
import gobblin.data.management.retention.version.finder.DateTimeDatasetVersionFinder;


/**
 * {@link gobblin.dataset.DatasetsFinder} for tracking datasets.
 *
 * <p>
 *   Tracking datasets are datasets where each data point represents a timestamped action, and the records are
 *   organized in a time aware directory pattern (e.g. one directory per minute / hour / day).
 * </p>
 */
public class TrackingDatasetProfile extends ConfigurableGlobDatasetFinder {

  public TrackingDatasetProfile(FileSystem fs, Properties props) {
    super(fs, props);
  }

  @Override
  public List<String> requiredProperties() {
    List<String> requiredProperties = super.requiredProperties();
    requiredProperties.add(DateTimeDatasetVersionFinder.RETENTION_DATE_TIME_PATTERN_KEY);
    return requiredProperties;
  }

  @Override
  public Dataset datasetAtPath(Path path) throws IOException {
    return new TrackingDataset(this.fs, this.props, path);
  }
}