hunter/hunter.go
2020-04-07 18:55:41 +08:00

83 lines
1.8 KiB
Go

package hunter
import (
pqueue "github.com/474420502/focus/priority_queue"
)
// IGobalBefore 全局任务执行之前
type IGobalBefore interface {
GobalBefore()
}
// IGobalAfter 全局任务执行之后
type IGobalAfter interface {
GobalAfter()
}
// Hunter 任务相关 必须有序
type Hunter struct {
cxt *TaskContext
task ITaskNode
createQueue func() *pqueue.PriorityQueue
}
// NewHunter 默认最大优先
func NewHunter() *Hunter {
return NewPriorityMaxHunter()
}
// NewPriorityHunter 自定义优先处理队列
func NewPriorityHunter(queueCreator func() *pqueue.PriorityQueue) *Hunter {
hunter := &Hunter{}
hunter.createQueue = queueCreator
hunter.task = &BaseTask{}
hunter.task.SetParent(nil)
hunter.task.SetChildren(hunter.createQueue())
hunter.cxt = NewContext()
hunter.cxt.curNode = hunter.task
return hunter
}
// NewPriorityMaxHunter 最大优先
func NewPriorityMaxHunter() *Hunter {
return NewPriorityHunter(CreatePriorityMaxQueue)
}
// NewPriorityMinHunter 最小优先
func NewPriorityMinHunter() *Hunter {
return NewPriorityHunter(CreatePriorityMinQueue)
}
// Execute 执行任务
func (hunter *Hunter) Execute() {
hunter.recursionTasks(hunter.task)
}
func (hunter *Hunter) recursionTasks(itask ITaskNode) {
for children := itask.Children(); children != nil && children.Size() > 0; {
if itask, ok := children.Pop(); ok {
tasknode := itask.(ITaskNode)
tasknode.Task().Execute(hunter.cxt)
hunter.recursionTasks(tasknode)
}
}
}
// Stop 停止任务
func (hunter *Hunter) Stop() {
}
// AddTask 执行任务
func (hunter *Hunter) AddTask(task ITask) {
hunter.cxt.AddTask(task)
}
// Execute 执行
// func (hunter *Hunter) Execute() {
// if itask, ok := hunter.task.Children().Top(); ok {
// task := itask.(ITask)
// }
// }