io.druid.indexing.common.actions.SegmentInsertAction Maven / Gradle / Ivy
/*
* 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.indexing.common.actions;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.type.TypeReference;
import com.google.common.collect.ImmutableSet;
import io.druid.indexing.common.task.Task;
import io.druid.timeline.DataSegment;
import java.io.IOException;
import java.util.Set;
/**
* Insert segments into metadata storage. The segment versions must all be less than or equal to a lock held by
* your task for the segment intervals.
*
* Word of warning: Very large "segments" sets can cause oversized audit log entries, which is bad because it means
* that the task cannot actually complete. Callers should avoid this by avoiding inserting too many segments in the
* same action.
*/
public class SegmentInsertAction implements TaskAction>
{
private final Set segments;
@JsonCreator
public SegmentInsertAction(
@JsonProperty("segments") Set segments
)
{
this.segments = ImmutableSet.copyOf(segments);
}
@JsonProperty
public Set getSegments()
{
return segments;
}
@Override
public TypeReference> getReturnTypeReference()
{
return new TypeReference>()
{
};
}
/**
* Behaves similarly to
* {@link io.druid.indexing.overlord.IndexerMetadataStorageCoordinator#announceHistoricalSegments},
* with startMetadata and endMetadata both null.
*/
@Override
public Set perform(Task task, TaskActionToolbox toolbox) throws IOException
{
return new SegmentTransactionalInsertAction(segments, null, null).perform(task, toolbox).getSegments();
}
@Override
public boolean isAudited()
{
return true;
}
@Override
public String toString()
{
return "SegmentInsertAction{" +
"segments=" + segments +
'}';
}
}