/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets 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 io.druid.segment.loading;

import io.druid.guice.annotations.ExtensionPoint;
import io.druid.timeline.DataSegment;

import java.io.File;

/**
 * A DataSegmentPuller is responsible for pulling data for a particular segment into a particular directory
 */
@ExtensionPoint
public interface DataSegmentPuller
{
  /**
   * Pull down segment files for the given DataSegment and put them in the given directory.
   *
   * @param segment The segment to pull down files for
   * @param dir     The directory to store the files in
   *
   * @throws SegmentLoadingException if there are any errors
   */
  void getSegmentFiles(DataSegment segment, File dir) throws SegmentLoadingException;
}
