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113 lines
3.1 KiB
113 lines
3.1 KiB
// Copyright (c) Shenyang Leading Edge Intelligent Technology Co., Ltd. All rights reserved.
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package container
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import (
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"errors"
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"fmt"
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)
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// 服务组件信息
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// @Implement LAPP_LF_MOM_BACKEND/container/ComponentInformation
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type ServiceInformation struct {
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// @Inherit LAPP_LF_MOM_BACKEND/container/ElementInformation
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ElementInformation
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// 方法信息映射: map[方法名]方法信息
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methodMapping map[string]*ServiceMethodInformation
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}
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// 创建服务组件信息
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// 参数
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// 1.工厂方法
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// 返回值:
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// 1.服务组件信息
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// 2.错误
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func NewServiceInformation(factory interface{}) *ServiceInformation {
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valueOfFactory, interfaceType := parseFactory(factory)
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return &ServiceInformation{ElementInformation{valueOfFactory, interfaceType}, make(map[string]*ServiceMethodInformation, 10)}
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}
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// @Reference LAPP_LF_MOM_BACKEND/container/ComponentInformation.BuildHandler
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// @Override LAPP_LF_MOM_BACKEND/container/ElementInformation.BuildHandler
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func (info *ServiceInformation) BuildHandler(sessionContext *SessionContext) (ComponentHandler, error) {
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if sessionContext == nil {
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return nil, errors.New(fmt.Sprintf("会话上下文不能为空!"))
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}
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instance, err := info.factory.Create(sessionContext)
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if err != nil {
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return nil, err
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}
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methodHandlers := make(map[string]*ServiceMethodHandler, len(info.methodMapping))
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for methodName, methodInformation := range info.methodMapping {
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methodHandler, err := methodInformation.BuildHandler(sessionContext, instance)
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if err != nil {
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return nil, err
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}
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methodHandlers[methodName] = methodHandler
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}
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serviceHandler, err := NewServiceHandler(instance, methodHandlers)
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if err != nil {
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return nil, err
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}
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return serviceHandler, nil
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}
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// 注册服务方法
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// 参数
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// 1.方法
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// 返回值:
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// 1.注册的服务方法信息
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// 2.错误
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// 异常
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// 1.方法名不能为空
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// 2.方法已经注册
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// 3.找不到方法
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// 4.方法类型不能为空
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// 5.返回值数量错误
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// 6.最后一个返回值类型错误
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func (info *ServiceInformation) RegisterMethod(methodName string) *ServiceMethodInformation {
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if methodName == "" {
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panic(fmt.Sprintf("方法名不能为空!"))
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}
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if _, ok := info.methodMapping[methodName]; ok {
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panic(fmt.Sprintf("方法%s已经注册!", methodName))
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}
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method, ok := info.interfaceType.MethodByName(methodName)
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if !ok {
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panic(fmt.Sprintf("找不到方法%s!", methodName))
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}
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methodInformation := NewServiceMethodInformation(&method)
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info.methodMapping[methodName] = methodInformation
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return methodInformation
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}
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// 获取指定名称的服务方法信息
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// 参数:
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// 1.方法名
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// 返回值:
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// 1.方法信息
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func (info *ServiceInformation) Method(methodName string) *ServiceMethodInformation {
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method, ok := info.methodMapping[methodName]
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if ok {
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return method
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}
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return nil
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}
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// 获取注册的服务方法信息列表
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// 返回值:
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// 1.服务方法信息列表
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func (info *ServiceInformation) Methods() []*ServiceMethodInformation {
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methods := make([]*ServiceMethodInformation, len(info.methodMapping))
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index := 0
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for _, method := range info.methodMapping {
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methods[index] = method
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index++
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}
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return methods
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}
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