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 com.aliyun.odps.table.configuration;
  
  import java.io.Serializable;
  
  public class ArrowOptions implements Serializable {
  
      public static final TimestampUnit DEFAULT_TIMESTAMP_UNIT = TimestampUnit.NANO;
      public static final TimestampUnit DEFAULT_DATETIME_UNIT = TimestampUnit.MILLI;
  
      private TimestampUnit timestampUnit;
      private TimestampUnit dateTimeUnit;
      // TODO: arrow extension mode
      // TODO: arrow data version
  
      private ArrowOptions() {
          this.timestampUnit = DEFAULT_TIMESTAMP_UNIT;
          this.dateTimeUnit = DEFAULT_DATETIME_UNIT;
      }
  
      public TimestampUnit getTimestampUnit() {
          return timestampUnit;
      }
  
      public TimestampUnit getDateTimeUnit() {
          return dateTimeUnit;
      }
  
      public static Builder newBuilder() {
          return new Builder();
      }
  
      public static ArrowOptions createDefault() {
          return newBuilder().build();
      }
  
      public static class Builder {
  
          private final ArrowOptions arrowOptions;
  
          public Builder() {
              this.arrowOptions = new ArrowOptions();
          }
  
          public Builder withTimestampUnit(TimestampUnit unit) {
              this.arrowOptions.timestampUnit = unit;
              return this;
          }
  
          public Builder withDatetimeUnit(TimestampUnit unit) {
              this.arrowOptions.dateTimeUnit = unit;
              return this;
          }
  
          public ArrowOptions build() {
              return this.arrowOptions;
          }
      }
  
      public enum TimestampUnit {
          SECOND,
          MILLI,
          MICRO,
          NANO;
  
          @Override
          public String toString() {
              switch (this) {
                  case SECOND:
                      return "second";
                  case MILLI:
                      return "milli";
                  case MICRO:
                      return "micro";
                  case NANO:
                      return "nano";
                  default:
                      throw new IllegalArgumentException("Unexpected time stamp unit");
              }
          }
      }
  }
  