light-apiengine-feature/engine/apiengine.go

package engine

import (
	"fmt"
	//"github.com/gin-contrib/sessions"
	//"github.com/gin-contrib/sessions/memstore"
	//"github.com/gin-contrib/sessions/cookie"

	"os"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine-client/client"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine/config"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine/models"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine/env"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine/logs"
	"github.com/gin-contrib/cors"
	"github.com/gin-gonic/gin"
	"github.com/xormplus/xorm"
	"git.qianqiusoft.com/qianqiusoft/light-apiengine/entitys"
	"github.com/gin-contrib/gzip"
)

type ApiEngine struct {
	entitys.ApiEngineInterface
	PlatformOrmEngine   *xorm.Engine
	BusinessOrmEngine 	map[string]*xorm.Engine
	GinEngine   		*gin.Engine
	listen_addr 		string
	AppModuleInitFunc   map[string]entitys.AppModuleInitFunction
}

func (g* ApiEngine)GetBusinessDb(domain string) *xorm.Engine{
	return g.BusinessOrmEngine[domain]
}

func (g* ApiEngine)GetAllBusinessDb() map[string]*xorm.Engine{
	return g.BusinessOrmEngine
}

func Default() *ApiEngine {
	apiengine := NewApiEngine("mysql", config.AppConfig.DataSource, fmt.Sprintf(":%d", config.AppConfig.HttpPort))
	return apiengine
}

func NewApiEngine(driverName, dataSourceName string, addr string) *ApiEngine {
	engine := &ApiEngine{}
	var err error
	engine.AppModuleInitFunc = make(map[string]entitys.AppModuleInitFunction)
	engine.PlatformOrmEngine, err = xorm.NewEngine(driverName, dataSourceName)
	printError(err)

	initOrmEngine(engine.PlatformOrmEngine, driverName)
	initPlatformDbData(engine.PlatformOrmEngine)

	engine.GinEngine = gin.Default()

	engine.GinEngine.Use(gzip.Gzip(gzip.DefaultCompression))

	//启动session
	//store := sessions.NewCookieStore([]byte("secret"))
	//engine.GinEngine.Use(sessions.Sessions("session", store))

	_, err = os.Stat("doc/api.tpl")
	if err == nil {
		fmt.Println("LoadHTMLGlob.")
		engine.GinEngine.LoadHTMLGlob("doc/*")
	}

	//cross domain
	config := cors.DefaultConfig()
	config.AllowAllOrigins = true
	//config.AllowOrigins = []string{"http://localhost:8090"}
	config.AllowCredentials = true
	config.AllowHeaders = []string{"Content-Type,AccessToken,X-CSRF-Token, Authorization, Token"}
	engine.GinEngine.Use(cors.New(config))
	engine.listen_addr = addr

	//设置登陆过滤
	return engine
}

func (g *ApiEngine)AppModuleInit(domain string)  {
	for _,v := range g.AppModuleInitFunc {
		v(domain, g)
	}
}

func (g *ApiEngine)AddAppMoudleInitFunc(module_name string, handler entitys.AppModuleInitFunction){
	g.AppModuleInitFunc[module_name] = handler
}

func (g *ApiEngine)AddBusinessDb(domainid, login_id, domain, datasource string, sync_db bool) bool{
	db := g.BusinessOrmEngine[domain]
	if db == nil {
		db, _ = xorm.NewEngine("mysql", datasource)
	}
	if db != nil {
		g.BusinessOrmEngine[domain] = db
		initOrmEngine(db, "mysql")
		if sync_db {
			g.AppModuleInit(domain)
			initBusinessDbData(domainid, login_id, domain, db, g.PlatformOrmEngine)
			g.PlatformOrmEngine.SQL("update sys_domain set sync_flag=1 where id = ?", domainid).Execute()
		}
		return true
	}
	return false
}

func (g *ApiEngine)LoadBusinessOrm()  {
	var domain []models.SysDomain
	g.PlatformOrmEngine.SQL("select * from sys_domain where del_flag = 0").Find(&domain)
	g.BusinessOrmEngine = make(map[string]*xorm.Engine)
	for _,v := range domain {
		g.AddBusinessDb(v.Id, v.Domain, v.Domain, v.DataSource, (v.SyncFlag == 0))
	}
	//将platformOrm添加到businessOrm中，这样平台账号登录上去也相当于使用相同的数据库配置
	g.BusinessOrmEngine["qianqiusoft.com"] = g.PlatformOrmEngine
}


func (g *ApiEngine) Run() {
	if config.AppConfig.RunMode != "release" {
		engine_path := env.Get("GOPATH", "") + "/src/git.qianqiusoft.com/qianqiusoft/light-apiengine/"
		_,err:=os.Stat(engine_path+"/light-apiengine.xml")
		if err == nil{
			gen_clinet := client.NewEngineClient("light-apiengine", "http://ccbeetech.com:6166")
			gen_clinet.GenerateToPath(engine_path+"/light-apiengine.xml", engine_path)
		}else{
			logs.Error("light-engine.xml文件不存在")
		}
	}
	g.LoadBusinessOrm()
	g.GinEngine.StaticFile("/", "web/index.html")
	g.GinEngine.Static("/static", "web/static")
	g.GinEngine.Run(g.listen_addr)
}