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CreateSavepointProcedure.scala
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CreateSavepointProcedure.scala
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/*
* 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.spark.sql.hudi.command.procedures
import org.apache.hudi.common.table.HoodieTableMetaClient
import org.apache.hudi.common.table.timeline.HoodieActiveTimeline
import org.apache.hudi.exception.{HoodieException, HoodieSavepointException}
import org.apache.spark.internal.Logging
import org.apache.spark.sql.Row
import org.apache.spark.sql.types.{DataTypes, Metadata, StructField, StructType}
import java.util.function.Supplier
class CreateSavepointProcedure extends BaseProcedure with ProcedureBuilder with Logging {
private val PARAMETERS = Array[ProcedureParameter](
ProcedureParameter.required(0, "table", DataTypes.StringType, None),
ProcedureParameter.required(1, "commit_time", DataTypes.StringType, None),
ProcedureParameter.optional(2, "user", DataTypes.StringType, ""),
ProcedureParameter.optional(3, "comments", DataTypes.StringType, "")
)
private val OUTPUT_TYPE = new StructType(Array[StructField](
StructField("create_savepoint_result", DataTypes.BooleanType, nullable = true, Metadata.empty))
)
def parameters: Array[ProcedureParameter] = PARAMETERS
def outputType: StructType = OUTPUT_TYPE
override def call(args: ProcedureArgs): Seq[Row] = {
super.checkArgs(PARAMETERS, args)
val tableName = getArgValueOrDefault(args, PARAMETERS(0))
val commitTime = getArgValueOrDefault(args, PARAMETERS(1)).get.asInstanceOf[String]
val user = getArgValueOrDefault(args, PARAMETERS(2)).get.asInstanceOf[String]
val comments = getArgValueOrDefault(args, PARAMETERS(3)).get.asInstanceOf[String]
val basePath: String = getBasePath(tableName)
val metaClient = HoodieTableMetaClient.builder.setConf(jsc.hadoopConfiguration()).setBasePath(basePath).build
val activeTimeline: HoodieActiveTimeline = metaClient.getActiveTimeline
if (!activeTimeline.getCommitsTimeline.filterCompletedInstants.containsInstant(commitTime)) {
throw new HoodieException("Commit " + commitTime + " not found in Commits " + activeTimeline)
}
val client = createHoodieClient(jsc, basePath)
var result = false
try {
client.savepoint(commitTime, user, comments)
logInfo(s"The commit $commitTime has been savepointed.")
result = true
} catch {
case _: HoodieSavepointException =>
logWarning(s"Failed: Could not create savepoint $commitTime.")
} finally {
client.close()
}
Seq(Row(result))
}
override def build: Procedure = new CreateSavepointProcedure()
}
object CreateSavepointProcedure {
val NAME: String = "create_savepoint"
def builder: Supplier[ProcedureBuilder] = new Supplier[ProcedureBuilder] {
override def get(): CreateSavepointProcedure = new CreateSavepointProcedure()
}
}