| /* |
| * 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.beam.sdk.extensions.sql.zetasql; |
| |
| import java.util.TimeZone; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.linq4j.function.Strict; |
| import org.joda.time.DateTime; |
| import org.joda.time.DateTimeZone; |
| |
| /** TimestampFunctions. */ |
| public class TimestampFunctions { |
| public static DateTime timestamp(String timestampStr) { |
| return timestamp(timestampStr, "UTC"); |
| } |
| |
| @Strict |
| public static DateTime timestamp(String timestampStr, String timezone) { |
| return DateTimeUtils.findDateTimePattern(timestampStr) |
| .withZone(DateTimeZone.forTimeZone(TimeZone.getTimeZone(timezone))) |
| .parseDateTime(timestampStr); |
| } |
| |
| @Strict |
| public static DateTime timestamp(Integer numOfDays) { |
| return timestamp(numOfDays, "UTC"); |
| } |
| |
| @Strict |
| public static DateTime timestamp(Integer numOfDays, String timezone) { |
| return new DateTime((long) numOfDays * DateTimeUtils.MILLIS_PER_DAY, DateTimeZone.UTC) |
| .withZoneRetainFields(DateTimeZone.forTimeZone(TimeZone.getTimeZone(timezone))); |
| } |
| } |