115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
package modules
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import (
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"context"
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"fmt"
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"go_dreamfactory/comm"
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"reflect"
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"strings"
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"unicode"
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"unicode/utf8"
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"go_dreamfactory/lego/base"
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"go_dreamfactory/lego/core"
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"go_dreamfactory/lego/core/cbase"
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)
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/*
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模块网关组件的基类实现 模块接收用户的消息请求都需要通过装备继承此组件的api组件来实现
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*/
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var typeOfContext = reflect.TypeOf((*context.Context)(nil)).Elem()
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var typeOfSession = reflect.TypeOf((*comm.IUserSession)(nil)).Elem()
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var typeOfError = reflect.TypeOf((*error)(nil)).Elem()
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/*
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模块 网关组件 接收处理用户传递消息
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*/
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type MComp_GateComp struct {
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cbase.ModuleCompBase
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service base.IRPCXService //rpc服务对象
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module core.IModule //当前业务模块
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comp core.IModuleComp //网关组件自己
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}
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//组件初始化接口
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func (this *MComp_GateComp) Init(service core.IService, module core.IModule, comp core.IModuleComp, options core.IModuleOptions) (err error) {
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this.ModuleCompBase.Init(service, module, comp, options)
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this.service = service.(base.IRPCXService)
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this.module = module
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this.comp = comp
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return
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}
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//组件启动接口，启动时将自己接收用户消息的处理函数注册到services/comp_gateroute.go 对象中
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func (this *MComp_GateComp) Start() (err error) {
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if err = this.ModuleCompBase.Start(); err != nil {
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return
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}
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var comp core.IServiceComp
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//注册远程路由
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if comp, err = this.service.GetComp(comm.SC_ServiceGateRouteComp); err != nil {
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return
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}
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this.suitableMethods(comp.(comm.ISC_GateRouteComp), reflect.TypeOf(this.comp))
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return
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}
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//反射注册相关接口道services/comp_gateroute.go 对象中
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func (this *MComp_GateComp) suitableMethods(scomp comm.ISC_GateRouteComp, typ reflect.Type) {
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for m := 0; m < typ.NumMethod(); m++ {
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method := typ.Method(m)
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mtype := method.Type
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mname := method.Name
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// Method must be exported.
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if method.PkgPath != "" {
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continue
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}
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// Method needs four ins: receiver, context.Context, *args, *reply.
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if mtype.NumIn() != 4 {
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continue
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}
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// First arg must be context.Context
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ctxType := mtype.In(1)
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if !ctxType.Implements(typeOfContext) {
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continue
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}
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// Second arg need not be a pointer.
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argType := mtype.In(2)
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if !argType.Implements(typeOfSession) {
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continue
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}
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// Third arg must be a pointer.
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replyType := mtype.In(3)
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if replyType.Kind() != reflect.Ptr {
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continue
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}
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// Reply type must be exported.
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if !this.isExportedOrBuiltinType(replyType) {
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continue
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}
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// Method needs one out.
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if mtype.NumOut() != 1 {
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continue
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}
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// The return type of the method must be error.
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if returnType := mtype.Out(0); returnType != typeOfError {
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continue
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}
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scomp.RegisterRoute(fmt.Sprintf("%s.%s", this.module.GetType(), strings.ToLower(mname)), reflect.ValueOf(this.comp), replyType, method)
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}
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}
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func (this *MComp_GateComp) isExportedOrBuiltinType(t reflect.Type) bool {
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for t.Kind() == reflect.Ptr {
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t = t.Elem()
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}
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return this.isExported(t.Name()) || t.PkgPath() == ""
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}
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func (this *MComp_GateComp) isExported(name string) bool {
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rune, _ := utf8.DecodeRuneInString(name)
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return unicode.IsUpper(rune)
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}
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