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Add alternative scheduler based on the number of entries

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Shizun Ge 2020-05-25 16:06:56 -05:00 • committed by GitHub
parent 25d4b9fc0c
commit cead85b165
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12 changed files with 423 additions and 119 deletions
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31
model/feed.go
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@ -6,8 +6,11 @@ package model // import "miniflux.app/model"
import (
"fmt"
"math"
"strings"
"time"
"miniflux.app/config"
"miniflux.app/http/client"
)
@ -19,6 +22,7 @@ type Feed struct {
SiteURL string `json:"site_url"`
Title string `json:"title"`
CheckedAt time.Time `json:"checked_at"`
NextCheckAt time.Time `json:"next_check_at"`
EtagHeader string `json:"etag_header"`
LastModifiedHeader string `json:"last_modified_header"`
ParsingErrorMsg string `json:"parsing_error_message"`
@ -37,6 +41,11 @@ type Feed struct {
ReadCount int `json:"-"`
}
const (
// SchedulerEntryCountBased represnets the name of the scheduler based on entry counts.
SchedulerEntryCountBased = "entry_count_based"
)
func (f *Feed) String() string {
return fmt.Sprintf("ID=%d, UserID=%d, FeedURL=%s, SiteURL=%s, Title=%s, Category={%s}",
f.ID,
@ -91,5 +100,27 @@ func (f *Feed) CheckedNow() {
}
}
// ScheduleNextCheck set "next_check_at" of a feed based on the scheduler selected from the configuration.
func (f *Feed) ScheduleNextCheck(weeklyCount int) {
var nextCheckAt time.Time
switch strings.ToLower(config.Opts.PollingScheduler()) {
case SchedulerEntryCountBased:
var intervalMinutes int
if weeklyCount == 0 {
intervalMinutes = config.Opts.SchedulerCountBasedMaxInterval()
} else {
intervalMinutes = int(math.Round(float64(7*24*60) / float64(weeklyCount)))
}
intervalMinutes = int(math.Min(float64(intervalMinutes), float64(config.Opts.SchedulerCountBasedMaxInterval())))
intervalMinutes = int(math.Max(float64(intervalMinutes), float64(config.Opts.SchedulerCountBasedMinInterval())))
nextCheckAt = time.Now().Add(time.Minute * time.Duration(intervalMinutes))
default:
// round robin
// omit the interval because they are same for all feeds.
nextCheckAt = time.Now()
}
f.NextCheckAt = nextCheckAt
}
// Feeds is a list of feed
type Feeds []*Feed