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hook.go
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executable file
·84 lines (64 loc) · 1.6 KB
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package action
import (
"context"
"net/http"
)
type HookReq struct {
Node *Node
Method string
ctx context.Context
hooks []*Hook
nextIdx int
isInTransaction bool
handler finishHandler
}
func (r *HookReq) IsPost() bool {
return r.Method == http.MethodPost
}
func (r *HookReq) IsPut() bool {
return r.Method == http.MethodPut
}
func (r *HookReq) IsDelete() bool {
return r.Method == http.MethodDelete
}
func (r *HookReq) Next() error {
for {
var h *Hook
for r.nextIdx+1 < len(r.hooks) && h == nil {
r.nextIdx++
_h := r.hooks[r.nextIdx]
if r.isInTransaction {
if _h.HandlerInTransaction == nil {
continue
}
h = _h
} else {
if _h.Handler == nil {
continue
}
h = _h
}
}
if h != nil {
if r.nextIdx < len(r.hooks) {
if r.isInTransaction {
return h.HandlerInTransaction(r.ctx, r)
}
return h.Handler(r.ctx, r)
}
}
return r.handler(r.ctx, r.Node, r.Method)
}
}
type Hook struct {
For []string
// 事务外 ， 可执行参数校验，io等耗时操作
Handler func(ctx context.Context, req *HookReq) error
// 事务内，尽量少执行耗时操作 (无论request配置中是否开启事务， 都会先执行handler 然后 在范围内执行HandlerInTransaction)
HandlerInTransaction func(ctx context.Context, req *HookReq) error
}
type finishHandler func(ctx context.Context, n *Node, method string) error
func getHooksByAccessName(hooksMap map[string][]*Hook, accessName string) []*Hook {
hooks := append(hooksMap["*"], hooksMap[accessName]...)
return hooks
}