org.apache.druid.indexing.overlord.SegmentCreateRequest Maven / Gradle / Ivy
/*
* 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.indexing.overlord;
import org.apache.druid.timeline.partition.PartialShardSpec;
/**
* Contains information used by {@link IndexerMetadataStorageCoordinator} for
* creating a new segment.
*
* The {@code sequenceName} and {@code previousSegmentId} fields are meant to
* make it easy for two independent ingestion tasks to produce the same series
* of segments.
*/
public class SegmentCreateRequest
{
// DO NOT IMPLEMENT equals or hashCode for this class as each request must be
// treated as unique even if it is for the same parameters
private final String version;
private final String sequenceName;
private final String previousSegmentId;
private final PartialShardSpec partialShardSpec;
private final String upgradedFromSegmentId;
private final String taskAllocatorId;
public SegmentCreateRequest(
String sequenceName,
String previousSegmentId,
String version,
PartialShardSpec partialShardSpec,
String upgradedFromSegmentId,
String taskAllocatorId
)
{
this.sequenceName = sequenceName;
this.previousSegmentId = previousSegmentId == null ? "" : previousSegmentId;
this.version = version;
this.partialShardSpec = partialShardSpec;
this.upgradedFromSegmentId = upgradedFromSegmentId;
this.taskAllocatorId = taskAllocatorId;
}
public String getSequenceName()
{
return sequenceName;
}
/**
* Non-null previous segment id. This can be used for persisting to the
* pending segments table in the metadata store.
*/
public String getPreviousSegmentId()
{
return previousSegmentId;
}
public String getVersion()
{
return version;
}
public PartialShardSpec getPartialShardSpec()
{
return partialShardSpec;
}
public String getUpgradedFromSegmentId()
{
return upgradedFromSegmentId;
}
public String getTaskAllocatorId()
{
return taskAllocatorId;
}
}