146 lines
3.3 KiB
Go
146 lines
3.3 KiB
Go
package system
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import (
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"fmt"
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"kumoly.io/kumoly/app/util"
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)
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type BaseService struct{}
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func (srv BaseService) GetName() string { return "base" }
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func (srv BaseService) GetDependencies() []string { return []string{""} }
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func (srv BaseService) IsService() bool { return false }
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func (srv BaseService) Init() error { return nil }
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func (srv BaseService) Load() error { return nil }
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func (srv BaseService) Main() error { return nil }
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func (srv BaseService) Del() {}
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func (srv BaseService) Health() error { return nil }
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type EasyBaseService struct {
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Name string
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Dependencies []string
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IsServ bool
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}
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func (srv EasyBaseService) GetName() string { return srv.Name }
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func (srv EasyBaseService) GetDependencies() []string { return srv.Dependencies }
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func (srv EasyBaseService) IsService() bool { return srv.IsServ }
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func (srv EasyBaseService) Init() error { return nil }
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func (srv EasyBaseService) Load() error { return nil }
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func (srv EasyBaseService) Main() error { return nil }
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func (srv EasyBaseService) Del() {}
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func (srv EasyBaseService) Health() error { return nil }
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type Inject struct {
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Name string
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Dependencies []string
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IsServ bool
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InitFunc func() error
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LoadFunc func() error
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MainFunc func() error
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DelFunc func()
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HealthFunc func() error
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}
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func (srv Inject) GetName() string { return srv.Name }
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func (srv Inject) GetDependencies() []string { return srv.Dependencies }
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func (srv Inject) IsService() bool { return srv.IsServ }
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func (srv Inject) Init() error {
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if srv.InitFunc == nil {
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return nil
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}
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return srv.InitFunc()
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}
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func (srv Inject) Load() error {
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if srv.LoadFunc == nil {
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return nil
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}
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return srv.LoadFunc()
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}
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func (srv Inject) Main() error {
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if srv.MainFunc == nil {
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return nil
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}
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return srv.MainFunc()
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}
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func (srv Inject) Del() {
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if srv.HealthFunc == nil {
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return
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}
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srv.DelFunc()
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}
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func (srv Inject) Health() error {
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if srv.HealthFunc == nil {
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return nil
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}
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return srv.HealthFunc()
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}
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func removeNode(s []*node, i int) []*node {
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s[i] = s[len(s)-1]
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return s[:len(s)-1]
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}
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func removeEdge(s []string, i int) []string {
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s[i] = s[len(s)-1]
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return s[:len(s)-1]
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}
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type node struct {
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srv *Service
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name string
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edge []string
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}
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func topo(nodes []*node) []*node {
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// check
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names := map[string]bool{}
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for _, v := range nodes {
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names[v.name] = true
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}
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for _, n := range nodes {
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for _, e := range n.edge {
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if !names[e] {
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err := fmt.Errorf("dependency not found: %v", e)
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l.Error().Err(err).Msg("")
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panic(err)
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}
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}
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}
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// start
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ret := []*node{}
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for i := 0; i <= len(nodes); i++ {
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if len(nodes) == 0 {
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break
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}
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if i == len(nodes) {
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i = 0
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}
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if nodes[i].edge == nil || len(nodes[i].edge) == 0 {
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n := nodes[i].name
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ret = append(ret, nodes[i])
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nodes = removeNode(nodes, i)
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for j := 0; j < len(nodes); j++ {
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for k := 0; k < len(nodes[j].edge); k++ {
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if nodes[j].edge[k] == n {
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nodes[j].edge = removeEdge(nodes[j].edge, k)
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}
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}
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}
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i--
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}
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}
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return ret
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}
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// Inject a system.Inject and uses caller as name
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func (sys *System) Inject(i *Inject) {
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if i.Name == "" {
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i.Name = util.Caller(2)
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}
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sys.Append(i)
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}
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