1# Licensed to the Apache Software Foundation (ASF) under one
2# or more contributor license agreements.  See the NOTICE file
3# distributed with this work for additional information
4# regarding copyright ownership.  The ASF licenses this file
5# to you under the Apache License, Version 2.0 (the
6# "License"); you may not use this file except in compliance
7# with the License.  You may obtain a copy of the License at
8#
9#   http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing,
12# software distributed under the License is distributed on an
13# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14# KIND, either express or implied.  See the License for the
15# specific language governing permissions and limitations
16# under the License.
17
18module Arrow
19  class TimestampArray
20    def get_value(i)
21      cast_to_time(get_raw_value(i))
22    end
23
24    def unit
25      @unit ||= value_data_type.unit
26    end
27
28    private
29    def cast_to_time(raw_value)
30      case unit
31      when TimeUnit::SECOND
32        ::Time.at(raw_value)
33      when TimeUnit::MILLI
34        ::Time.at(*raw_value.divmod(1_000))
35      when TimeUnit::MICRO
36        ::Time.at(*raw_value.divmod(1_000_000))
37      else
38        ::Time.at(raw_value / 1_000_000_000.0)
39      end
40    end
41  end
42end
43