/**
* 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.
*/
<@pp.dropOutputFile />
<#list dateIntervalFunc.dates as datetype>
<#list dateIntervalFunc.intervals as intervaltype>
<#if datetype == "Date" || datetype == "TimeStamp">
<@pp.changeOutputFile name="/org/apache/drill/exec/expr/fn/impl/${datetype}${intervaltype}Functions.java" />
<#include "/@includes/license.ftl" />
package org.apache.drill.exec.expr.fn.impl;
import io.netty.buffer.ByteBuf;
import org.apache.drill.exec.expr.DrillSimpleFunc;
import org.apache.drill.exec.expr.annotations.FunctionTemplate;
import org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling;
import org.apache.drill.exec.expr.annotations.Output;
import org.apache.drill.exec.expr.annotations.Param;
import org.apache.drill.exec.expr.annotations.Workspace;
import org.apache.drill.exec.expr.holders.*;
import org.apache.drill.exec.record.RecordBatch;
import org.joda.time.MutableDateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.DateMidnight;
import org.apache.drill.exec.expr.fn.impl.DateUtility;
/*
* This class is generated using freemarker and the ${.template_name} template.
*/
public class ${datetype}${intervaltype}Functions {
<#macro dateIntervalArithmeticBlock left right temp op output intervaltype datetype>
<#-- Throw exception if we are adding integer to a TIMESTAMP -->
<#if (datetype == "TimeStamp") && (intervaltype == "Int" || intervaltype == "BigInt")>
if (1 == 1) {
/* Since this will be included in the run time generated code, there might be other logic that follows this
* if the exception is raised without a condition, we will hit compilation issues while compiling run time code
* with the error: unreachable code.
*/
throw new UnsupportedOperationException("Cannot add integer to TIMESTAMP, cast it to specific interval");
}
<#else>
${temp}.setMillis(${left}.value);
<#if intervaltype == "Interval">
${temp}.addMonths(${right}.months <#if op == '-'> * -1 </#if>);
${temp}.addDays(${right}.days <#if op == '-'> * -1 </#if>);
${temp}.add(${right}.milliseconds <#if op == '-'> * -1 </#if>);
<#elseif intervaltype == "IntervalYear">
${temp}.addMonths(${right}.value <#if op == '-'> * -1 </#if>);
<#elseif intervaltype == "IntervalDay">
${temp}.addDays(${right}.days <#if op == '-'> * -1 </#if>);
${temp}.add(${right}.milliseconds <#if op == '-'> * -1 </#if>);
<#elseif intervaltype == "Int" || intervaltype == "BigInt">
${temp}.addDays((int) ${right}.value <#if op == '-'> * -1 </#if>);
</#if>
${output}.value = ${temp}.getMillis();
</#if>
</#macro>
@SuppressWarnings("unused")
@FunctionTemplate(names = {"date_add", "add"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls=NullHandling.NULL_IF_NULL)
public static class ${datetype}${intervaltype}AddFunction implements DrillSimpleFunc {
@Param ${datetype}Holder left;
@Param ${intervaltype}Holder right;
@Workspace org.joda.time.MutableDateTime temp;
<#if datetype == "Date" && (intervaltype.startsWith("Interval"))>
@Output TimeStampHolder out;
<#else>
@Output ${datetype}Holder out;
</#if>
public void setup() {
temp = new org.joda.time.MutableDateTime(org.joda.time.DateTimeZone.UTC);
}
public void eval() {
<@dateIntervalArithmeticBlock left="left" right="right" temp = "temp" op = "+" output="out" intervaltype=intervaltype datetype = datetype/>
}
}
<#-- Below function is the same as above except the arguments are in reverse order. We use macros to avoid having the logic in multiple places -->
@SuppressWarnings("unused")
@FunctionTemplate(names = {"date_add", "add"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls=NullHandling.NULL_IF_NULL)
public static class ${intervaltype}${datetype}AddFunction implements DrillSimpleFunc {
@Param ${intervaltype}Holder right;
@Param ${datetype}Holder left;
@Workspace org.joda.time.MutableDateTime temp;
<#if datetype == "Date" && (intervaltype.startsWith("Interval"))>
@Output TimeStampHolder out;
<#else>
@Output ${datetype}Holder out;
</#if>
public void setup() {
temp = new org.joda.time.MutableDateTime(org.joda.time.DateTimeZone.UTC);
}
public void eval() {
<@dateIntervalArithmeticBlock left="left" right="right" temp = "temp" op = "+" output="out" intervaltype=intervaltype datetype = datetype/>
}
}
@SuppressWarnings("unused")
@FunctionTemplate(names = {"date_sub", "subtract", "date_diff"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls=NullHandling.NULL_IF_NULL)
public static class ${datetype}${intervaltype}SubtractFunction implements DrillSimpleFunc {
@Param ${datetype}Holder left;
@Param ${intervaltype}Holder right;
@Workspace org.joda.time.MutableDateTime temp;
@Output ${datetype}Holder out;
public void setup() {
temp = new org.joda.time.MutableDateTime(org.joda.time.DateTimeZone.UTC);
}
public void eval() {
<@dateIntervalArithmeticBlock left="left" right="right" temp = "temp" op = "-" output="out" intervaltype=intervaltype datetype = datetype/>
}
}
}
<#elseif datetype == "Time">
<@pp.changeOutputFile name="/org/apache/drill/exec/expr/fn/impl/${datetype}${intervaltype}Functions.java" />
<#include "/@includes/license.ftl" />
package org.apache.drill.exec.expr.fn.impl;
import io.netty.buffer.ByteBuf;
import org.apache.drill.exec.expr.DrillSimpleFunc;
import org.apache.drill.exec.expr.annotations.FunctionTemplate;
import org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling;
import org.apache.drill.exec.expr.annotations.Output;
import org.apache.drill.exec.expr.annotations.Param;
import org.apache.drill.exec.expr.annotations.Workspace;
import org.apache.drill.exec.expr.holders.*;
import org.apache.drill.exec.record.RecordBatch;
import org.joda.time.MutableDateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.DateMidnight;
import org.apache.drill.exec.expr.fn.impl.DateUtility;
/*
* This class is generated using freemarker and the ${.template_name} template.
*/
public class ${datetype}${intervaltype}Functions {
<#macro timeIntervalArithmeticBlock left right temp op output intervaltype>
<#if intervaltype == "Int" || intervaltype == "BigInt">
if (1 == 1) {
throw new UnsupportedOperationException("Cannot add integer to TIME, cast it to specific interval");
}
<#elseif intervaltype == "IntervalYear">
// Needn't add anything to time from interval year data type. Output is same as input
${output} = ${left}.value;
<#else>
${output} = ${left}.value ${op} ${right}.milliseconds;
// Wrap around 24 hour clock if we exceeded it while adding the time component
${output} = ${output} % org.apache.drill.exec.expr.fn.impl.DateUtility.daysToStandardMillis;
</#if>
</#macro>
@SuppressWarnings("unused")
@FunctionTemplate(names = {"date_add", "add"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls=NullHandling.NULL_IF_NULL)
public static class ${datetype}${intervaltype}AddFunction implements DrillSimpleFunc {
@Param ${datetype}Holder left;
@Param ${intervaltype}Holder right;
@Output ${datetype}Holder out;
public void setup() {
}
public void eval() {
<@timeIntervalArithmeticBlock left="left" right="right" temp = "temp" op = "+" output="out.value" intervaltype=intervaltype />
}
}
@SuppressWarnings("unused")
@FunctionTemplate(names = {"date_add", "add"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls=NullHandling.NULL_IF_NULL)
public static class ${intervaltype}${datetype}AddFunction implements DrillSimpleFunc {
@Param ${intervaltype}Holder right;
@Param ${datetype}Holder left;
@Output ${datetype}Holder out;
public void setup() {
}
public void eval() {
<@timeIntervalArithmeticBlock left="left" right="right" temp = "temp" op = "+" output="out.value" intervaltype=intervaltype />
}
}
@SuppressWarnings("unused")
@FunctionTemplate(names = {"date_sub", "subtract", "date_diff"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls=NullHandling.NULL_IF_NULL)
public static class ${datetype}${intervaltype}SubtractFunction implements DrillSimpleFunc {
@Param ${datetype}Holder left;
@Param ${intervaltype}Holder right;
@Output ${datetype}Holder out;
public void setup() {
}
public void eval() {
<@timeIntervalArithmeticBlock left="left" right="right" temp = "temp" op = "-" output="out.value" intervaltype=intervaltype />
}
}
}
</#if>
</#list>
</#list>