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65 lines
1.3 KiB
65 lines
1.3 KiB
package main
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var _noneTemplate = `
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// NAME {{or .Comment "get data from cache if miss will call source method, then add to cache."}}
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func (d *Dao) NAME(c context.Context) (res VALUE, err error) {
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addCache := true
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res, err = CACHEFUNC(c)
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if err != nil {
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addCache = false
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err = nil
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}
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{{if .EnableNullCache}}
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defer func() {
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{{if .SimpleValue}} if res == {{.NullCache}} { {{else}} if {{.CheckNullCode}} { {{end}}
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res = {{.ZeroValue}}
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}
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}()
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{{end}}
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{{if .GoValue}}
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if len(res) != 0 {
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{{else}}
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if res != {{.ZeroValue}} {
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{{end}}
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cache.MetricHits.Inc("bts:NAME")
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return
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}
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{{if .EnableSingleFlight}}
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var rr interface{}
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sf := d.cacheSFNAME()
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rr, err, _ = cacheSingleFlights[SFNUM].Do(sf, func() (r interface{}, e error) {
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cache.MetricMisses.Inc("bts:NAME")
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r, e = RAWFUNC(c)
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return
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})
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res = rr.(VALUE)
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{{else}}
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cache.MetricMisses.Inc("bts:NAME")
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res, err = RAWFUNC(c)
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{{end}}
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if err != nil {
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return
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}
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var miss = res
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{{if .EnableNullCache}}
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{{if .GoValue}}
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if len(miss) == 0 {
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{{else}}
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if miss == {{.ZeroValue}} {
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{{end}}
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miss = {{.NullCache}}
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}
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{{end}}
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if !addCache {
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return
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}
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{{if .Sync}}
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ADDCACHEFUNC(c, miss)
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{{else}}
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d.cache.Do(c, func(c context.Context) {
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ADDCACHEFUNC(c, miss)
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})
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{{end}}
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return
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}
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`
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