org.apache.flink.table.planner.codegen.calls.CurrentTimePointCallGen.scala 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
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
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*/
package org.apache.flink.table.planner.codegen.calls
import org.apache.flink.table.planner.codegen.GenerateUtils.generateNonNullField
import org.apache.flink.table.planner.codegen.{CodeGeneratorContext, GeneratedExpression}
import org.apache.flink.table.types.logical.LogicalType
import org.apache.flink.table.types.logical.LogicalTypeRoot.{DATE, TIMESTAMP_WITHOUT_TIME_ZONE,TIMESTAMP_WITH_LOCAL_TIME_ZONE, TIME_WITHOUT_TIME_ZONE}
/**
* Generates function call to determine current time point (as date/time/timestamp) in
* local timezone or not.
*/
class CurrentTimePointCallGen(local: Boolean, isStreaming: Boolean) extends CallGenerator {
override def generate(
ctx: CodeGeneratorContext,
operands: Seq[GeneratedExpression],
returnType: LogicalType): GeneratedExpression = returnType.getTypeRoot match {
// LOCALTIME in Streaming mode
case TIME_WITHOUT_TIME_ZONE if local && isStreaming =>
val time = ctx.addReusableRecordLevelLocalTime()
generateNonNullField(returnType, time)
// LOCALTIME in Batch mode
case TIME_WITHOUT_TIME_ZONE if local && !isStreaming =>
val time = ctx.addReusableQueryLevelLocalTime()
generateNonNullField(returnType, time)
// LOCALTIMESTAMP in Streaming mode
case TIMESTAMP_WITHOUT_TIME_ZONE if local && isStreaming =>
val timestamp = ctx.addReusableRecordLevelLocalDateTime()
generateNonNullField(returnType, timestamp)
// LOCALTIMESTAMP in Batch mode
case TIMESTAMP_WITHOUT_TIME_ZONE if local && !isStreaming =>
val timestamp = ctx.addReusableQueryLevelLocalDateTime()
generateNonNullField(returnType, timestamp)
// CURRENT_DATE in Streaming mode
case DATE if isStreaming =>
val date = ctx.addReusableRecordLevelCurrentDate()
generateNonNullField(returnType, date)
// CURRENT_DATE in Batch mode
case DATE if !isStreaming =>
val date = ctx.addReusableQueryLevelCurrentDate()
generateNonNullField(returnType, date)
// CURRENT_TIME in Streaming mode
case TIME_WITHOUT_TIME_ZONE if isStreaming =>
val time = ctx.addReusableRecordLevelLocalTime()
generateNonNullField(returnType, time)
// CURRENT_TIME in Batch mode
case TIME_WITHOUT_TIME_ZONE if !isStreaming =>
val time = ctx.addReusableQueryLevelLocalTime()
generateNonNullField(returnType, time)
// CURRENT_TIMESTAMP in Streaming mode
case TIMESTAMP_WITH_LOCAL_TIME_ZONE if isStreaming =>
val timestamp = ctx.addReusableRecordLevelCurrentTimestamp()
generateNonNullField(returnType, timestamp)
// CURRENT_TIMESTAMP in Batch mode
case TIMESTAMP_WITH_LOCAL_TIME_ZONE if !isStreaming =>
val timestamp = ctx.addReusableQueryLevelCurrentTimestamp()
generateNonNullField(returnType, timestamp)
}
}