58 lines
1.7 KiB
Java
58 lines
1.7 KiB
Java
/*
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* Copyright (C) 2018 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.copybara.jcommander;
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import com.beust.jcommander.IStringConverter;
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import com.beust.jcommander.ParameterException;
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import com.google.common.primitives.Ints;
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import java.time.Duration;
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/**
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* Converts strings like 10s/10m/10h to a Duration
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*/
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public class DurationConverter implements IStringConverter<Duration> {
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@Override
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public Duration convert(String value) {
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if (value.length() < 2) {
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return durationException(value);
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}
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Integer num = Ints.tryParse(value.substring(0, value.length() - 1));
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if (num == null || num < 0) {
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return durationException(value);
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}
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char unit = value.charAt(value.length() - 1);
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switch (unit) {
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case 's':
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return Duration.ofSeconds(num);
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case 'm':
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return Duration.ofMinutes(num);
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case 'h':
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return Duration.ofHours(num);
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case 'd':
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return Duration.ofDays(num);
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default:
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return durationException(value);
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}
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}
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private Duration durationException(String value) {
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throw new ParameterException(String.format(
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"Invalid value for duration '%s', valid value examples: 10s, 10m, 10h or 10d", value));
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}
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}
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