content: /*
   * 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.utils;
  
  import org.joda.time.DateTime;
  import org.joda.time.format.DateTimeFormat;
  
  /** DateTimeUtils. */
  public class DateTimeUtils {
  
    public static DateTime parseTimestampWithUTCTimeZone(String str) {
      if (str.indexOf('.') == -1) {
        return DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss").withZoneUTC().parseDateTime(str);
      } else {
        return DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss.SSS").withZoneUTC().parseDateTime(str);
      }
    }
  
    public static DateTime parseTimestampWithTimeZone(String str) {
      // for example, accept "1990-10-20 13:24:01+0730"
      return DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ssZ").parseDateTime(str);
    }
  
    public static DateTime parseTimestampWithoutTimeZone(String str) {
      return DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss").parseDateTime(str);
    }
  
    public static DateTime parseDate(String str) {
      return DateTimeFormat.forPattern("yyyy-MM-dd").withZoneUTC().parseDateTime(str);
    }
  
    public static DateTime parseTime(String str) {
      // DateTimeFormat does not parse "08:10:10" for pattern "HH:mm:ss.SSS". In this case, '.' must
      // appear.
      if (str.indexOf('.') == -1) {
        return DateTimeFormat.forPattern("HH:mm:ss").withZoneUTC().parseDateTime(str);
      } else {
        return DateTimeFormat.forPattern("HH:mm:ss.SSS").withZoneUTC().parseDateTime(str);
      }
    }
  }
  