69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
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// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package schedule
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import (
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"strings"
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"time"
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"github.com/elastic/beats/heartbeat/scheduler"
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"github.com/elastic/beats/heartbeat/scheduler/schedule/cron"
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)
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type Schedule struct {
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scheduler.Schedule
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}
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type intervalScheduler struct {
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interval time.Duration
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}
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func Parse(in string) (*Schedule, error) {
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every := "@every"
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// add '@every' keyword
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if strings.HasPrefix(in, every) {
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interval := strings.TrimSpace(in[len(every):])
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d, err := time.ParseDuration(interval)
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if err != nil {
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return nil, err
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}
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return &Schedule{intervalScheduler{d}}, nil
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}
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// fallback on cron scheduler parsers
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s, err := cron.Parse(in)
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if err != nil {
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return nil, err
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}
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return &Schedule{s}, nil
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}
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func (s intervalScheduler) Next(t time.Time) time.Time {
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return t.Add(s.interval)
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}
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func (s *Schedule) Unpack(str string) error {
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tmp, err := Parse(str)
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if err == nil {
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*s = *tmp
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}
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return err
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}
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