| /* |
| * 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 /> |
| <#assign className="GTimestampDiff"/> |
| |
| <@pp.changeOutputFile name="/org/apache/drill/exec/expr/fn/impl/${className}.java"/> |
| |
| <#include "/@includes/license.ftl"/> |
| |
| package org.apache.drill.exec.expr.fn.impl; |
| |
| 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.Workspace; |
| import org.apache.drill.exec.expr.annotations.Param; |
| import org.apache.drill.exec.expr.holders.*; |
| import org.apache.drill.exec.record.RecordBatch; |
| |
| /* |
| * This class is generated using freemarker and the ${.template_name} template. |
| */ |
| |
| public class ${className} { |
| |
| <#list dateIntervalFunc.timestampDiffUnits as unit> |
| |
| <#list dateIntervalFunc.dates as fromUnit> |
| <#list dateIntervalFunc.dates as toUnit> |
| |
| @FunctionTemplate(name = "timestampdiff${unit}", |
| scope = FunctionTemplate.FunctionScope.SIMPLE, |
| nulls = FunctionTemplate.NullHandling.NULL_IF_NULL) |
| public static class TimestampDiff${unit}${fromUnit}To${toUnit} implements DrillSimpleFunc { |
| |
| @Param ${fromUnit}Holder left; |
| @Param ${toUnit}Holder right; |
| @Output BigIntHolder out; |
| |
| public void setup() { |
| } |
| |
| public void eval() { |
| <#if unit == "Nanosecond"> |
| out.value = (right.value - left.value) * 1_000_000; |
| <#elseif unit == "Microsecond"> |
| out.value = (right.value - left.value) * 1_000; |
| <#elseif unit == "Millisecond"> |
| out.value = right.value - left.value; |
| <#elseif unit == "Second"> |
| out.value = (right.value - left.value) / org.apache.drill.exec.vector.DateUtilities.secondsToMillis; |
| <#elseif unit == "Minute"> |
| out.value = (right.value - left.value) / org.apache.drill.exec.vector.DateUtilities.minutesToMillis; |
| <#elseif unit == "Hour"> |
| out.value = (right.value - left.value) / org.apache.drill.exec.vector.DateUtilities.hoursToMillis; |
| <#elseif unit == "Day"> |
| out.value = (right.value - left.value) / org.apache.drill.exec.vector.DateUtilities.daysToStandardMillis; |
| <#elseif unit == "Week"> |
| out.value = (right.value - left.value) / 604800000; // 7 * 24 * 60 * 60 * 1000 |
| <#elseif unit == "Month" || unit == "Quarter" || unit == "Year"> |
| |
| java.time.LocalDateTime from = java.time.Instant.ofEpochMilli(left.value).atZone(java.time.ZoneOffset.UTC).toLocalDateTime(); |
| java.time.LocalDateTime to = java.time.Instant.ofEpochMilli(right.value).atZone(java.time.ZoneOffset.UTC).toLocalDateTime(); |
| |
| int months = (int) from.until(to, java.time.temporal.ChronoUnit.MONTHS); |
| |
| <#if unit == "Month"> |
| out.value = months; |
| <#elseif unit == "Quarter"> |
| // Quarter has 3 month |
| out.value = months / 3; |
| <#elseif unit == "Year"> |
| out.value = months / org.apache.drill.exec.vector.DateUtilities.yearsToMonths; |
| </#if> |
| </#if> |
| } |
| } |
| </#list> |
| </#list> |
| |
| </#list> |
| } |