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vote.go
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vote.go
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package loong
import (
"context"
"fmt"
)
type vote struct {
numberOfInstances int // The number of instances created.
numberOfActiveInstances int // The number of instances currently active.
numberOfCompletedInstances int // The number of instances already completed.
numberOfTerminatedInstances int // The number of instances already terminated.
Evaluator
input Var
}
func newVote(ut []UserTask, eval Evaluator, input Var) *vote {
var (
numberOfActiveInstances int // The number of instances currently active.
numberOfCompletedInstances int // The number of instances already completed.
numberOfTerminatedInstances int // The number of instances already terminated.
)
for _, u := range ut {
if u.Status == STATUS_START {
numberOfActiveInstances++
} else {
switch {
case u.Result > 0:
numberOfCompletedInstances++
case u.Result < 0:
numberOfTerminatedInstances++
default:
panic("未投票")
}
}
}
return &vote{
Evaluator: eval,
numberOfInstances: len(ut),
numberOfActiveInstances: numberOfActiveInstances,
numberOfCompletedInstances: numberOfCompletedInstances,
numberOfTerminatedInstances: numberOfTerminatedInstances,
input: input,
}
}
func (v vote) Test(ctx context.Context, el string) (pass bool, err error) {
if pass, _, err = eval2[bool](ctx, v.Evaluator, el, v.ToEnv()); err == nil { // 无错误
if !pass && v.numberOfActiveInstances == 0 {
panic(fmt.Errorf("投票已经结束,未能达成通过条件 %s", el))
}
}
return
}
func (v vote) Eval(ctx context.Context, el string) (a any, err error) {
if el == "" {
return
}
a, err = v.Evaluator.Eval(ctx, el, v.ToEnv())
return
}
func (v vote) ToEnv() Var {
r := NewVar()
r.
Put("numberOfInstances", v.numberOfInstances).
Put("numberOfActiveInstances", v.numberOfActiveInstances).
Put("numberOfCompletedInstances", v.numberOfCompletedInstances).
Put("numberOfTerminatedInstances", v.numberOfTerminatedInstances)
// 兼容activity
r.
Put("nrOfInstances", v.numberOfInstances).
Put("nrOfActiveInstances", v.numberOfActiveInstances).
Put("nrOfCompletedInstances", v.numberOfCompletedInstances).
Put("nrOfTerminatedInstances", v.numberOfTerminatedInstances)
r.Set("Input", v.input)
return r
}