| /* |
| * 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. |
| */ |
| import org.apache.drill.exec.expr.annotations.Workspace; |
| |
| <@pp.dropOutputFile /> |
| |
| <#list dateIntervalFunc.varCharToDate as convert> |
| |
| <@pp.changeOutputFile name = "/org/apache/drill/exec/expr/fn/impl/G${convert.from}To${convert.to}.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.*; |
| |
| /* |
| * This class is generated using freemarker and the ${.template_name} template. |
| */ |
| <#if convert.to?contains("Nullable")> |
| @FunctionTemplate(name = "convert${convert.from}To${convert.to}", |
| scope = FunctionTemplate.FunctionScope.SIMPLE, |
| nulls = NullHandling.INTERNAL, |
| isInternal = true) |
| <#else> |
| @FunctionTemplate(name = "to_${convert.to?lower_case}", |
| scope = FunctionTemplate.FunctionScope.SIMPLE, |
| nulls = NullHandling.NULL_IF_NULL) |
| </#if> |
| public class G${convert.from}To${convert.to} implements DrillSimpleFunc { |
| |
| @Param ${convert.from}Holder left; |
| @Param VarCharHolder right; |
| @Workspace org.joda.time.format.DateTimeFormatter format; |
| @Output ${convert.to}Holder out; |
| |
| public void setup() { |
| // Get the desired output format |
| byte[] buf = new byte[right.end - right.start]; |
| right.buffer.getBytes(right.start, buf, 0, right.end - right.start); |
| String formatString = new String(buf, java.nio.charset.StandardCharsets.UTF_8); |
| format = org.joda.time.format.DateTimeFormat.forPattern(formatString); |
| } |
| |
| public void eval() { |
| <#if convert.to?contains("Nullable")> |
| if (<#if convert.from == "NullableVarChar">left.isSet == 0 || </#if>left.start == left.end) { |
| out.isSet = 0; |
| return; |
| } |
| out.isSet = 1; |
| |
| </#if> |
| // Get the input |
| byte[] buf1 = new byte[left.end - left.start]; |
| left.buffer.getBytes(left.start, buf1, 0, left.end - left.start); |
| String input = new String(buf1, java.nio.charset.StandardCharsets.UTF_8); |
| |
| <#if convert.to == "Date" || convert.to == "NullableDate"> |
| out.value = (org.joda.time.DateMidnight.parse(input, format).withZoneRetainFields(org.joda.time.DateTimeZone.UTC)).getMillis(); |
| <#elseif convert.to == "TimeStamp" || convert.to == "NullableTimeStamp"> |
| out.value = org.joda.time.DateTime.parse(input, format).withZoneRetainFields(org.joda.time.DateTimeZone.UTC).getMillis(); |
| <#elseif convert.to == "Time" || convert.to == "NullableTime"> |
| out.value = format.parseDateTime(input).withZoneRetainFields(org.joda.time.DateTimeZone.UTC).getMillisOfDay(); |
| </#if> |
| } |
| } |
| </#list> |