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A module that is everything required to understands Druid Segments
/*
* 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 org.apache.druid.segment.loading;
import org.apache.druid.guice.annotations.ExtensionPoint;
import org.apache.druid.timeline.DataSegment;
import java.util.Map;
/**
* DataSegmentMover knows how to move the segment location from one to another.
* Since any implementation of DataSegmentMover is initialized when an ingestion job starts
* if a deep storage extension is loaded even when that deep storage is actually not used,
* implementations should avoid initializing the deep storage client immediately
* but defer it until the deep storage client is actually used.
*/
@ExtensionPoint
public interface DataSegmentMover
{
DataSegment move(DataSegment segment, Map targetLoadSpec) throws SegmentLoadingException;
}