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.kafka.connect.data;
  
  import org.apache.kafka.connect.errors.DataException;
  
  import java.util.Calendar;
  import java.util.TimeZone;
  
  /**
   * <p>
   *     A time representing a specific point in a day, not tied to any specific date. The corresponding Java type is a
   *     {@link java.util.Date} where only hours, minutes, seconds, and milliseconds can be non-zero. This effectively makes it a
   *     point in time during the first day after the Unix epoch. The underlying representation is an integer
   *     representing the number of milliseconds after midnight.
   * </p>
   */
  public class Time {
      public static final String LOGICAL_NAME = "org.apache.kafka.connect.data.Time";
  
      private static final long MILLIS_PER_DAY = 24 * 60 * 60 * 1000;
  
      private static final TimeZone UTC = TimeZone.getTimeZone("UTC");
  
      /**
       * Returns a SchemaBuilder for a Time. By returning a SchemaBuilder you can override additional schema settings such
       * as required/optional, default value, and documentation.
       * @return a SchemaBuilder
       */
      public static SchemaBuilder builder() {
          return SchemaBuilder.int32()
                  .name(LOGICAL_NAME)
                  .version(1);
      }
  
      public static final Schema SCHEMA = builder().schema();
  
      /**
       * Convert a value from its logical format ({@link java.util.Date}) to its encoded format (int).
       * @param value the logical value
       * @return the encoded value
       */
      public static int fromLogical(Schema schema, java.util.Date value) {
          if (!(LOGICAL_NAME.equals(schema.name())))
              throw new DataException("Requested conversion of Time object but the schema does not match.");
          Calendar calendar = Calendar.getInstance(UTC);
          calendar.setTime(value);
          long unixMillis = calendar.getTimeInMillis();
          if (unixMillis < 0 || unixMillis > MILLIS_PER_DAY) {
              throw new DataException("Kafka Connect Time type should not have any date fields set to non-zero values.");
          }
          return (int) unixMillis;
      }
  
      /**
       * Convert a value from its encoded format (int) to its logical format ({@link java.util.Date}).
       * @param value the encoded value
       * @return the logical value
       */
      public static java.util.Date toLogical(Schema schema, int value) {
          if (!(LOGICAL_NAME.equals(schema.name())))
              throw new DataException("Requested conversion of Date object but the schema does not match.");
          if (value  < 0 || value > MILLIS_PER_DAY)
              throw new DataException("Time values must use number of milliseconds greater than 0 and less than 86400000");
          return new java.util.Date(value);
      }
  }
  