gf/g/net/ghttp/ghttp_server_service_object.go

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// Copyright 2018 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://gitee.com/johng/gf.
// 服务注册.
package ghttp
import (
"errors"
"gitee.com/johng/gf/g/os/glog"
"strings"
"reflect"
"fmt"
"gitee.com/johng/gf/g/util/gstr"
"gitee.com/johng/gf/g/os/gfile"
)
// 绑定对象到URI请求处理中会自动识别方法名称并附加到对应的URI地址后面
// 第三个参数methods用以指定需要注册的方法支持多个方法名称多个方法以英文“,”号分隔,区分大小写
func (s *Server)BindObject(pattern string, obj interface{}, methods...string) error {
methodMap := (map[string]bool)(nil)
if len(methods) > 0 {
methodMap = make(map[string]bool)
for _, v := range strings.Split(methods[0], ",") {
methodMap[strings.TrimSpace(v)] = true
}
}
m := make(handlerMap)
v := reflect.ValueOf(obj)
t := v.Type()
sname := t.Elem().Name()
finit := (func(*Request))(nil)
fshut := (func(*Request))(nil)
if v.MethodByName("Init").IsValid() {
finit = v.MethodByName("Init").Interface().(func(*Request))
}
if v.MethodByName("Shut").IsValid() {
fshut = v.MethodByName("Shut").Interface().(func(*Request))
}
pkgPath := t.Elem().PkgPath()
pkgName := gfile.Basename(pkgPath)
for i := 0; i < v.NumMethod(); i++ {
mname := t.Method(i).Name
if methodMap != nil && !methodMap[mname] {
continue
}
if mname == "Init" || mname == "Shut" {
continue
}
faddr, ok := v.Method(i).Interface().(func(*Request))
if !ok {
if methodMap != nil {
s := fmt.Sprintf(`invalid medthod definition "%s", while "func(*Request))" is required`, v.Method(i).Type().String())
glog.Error(s)
return errors.New(s)
}
continue
}
objName := gstr.Replace(t.String(), fmt.Sprintf(`%s.`, pkgName), "")
if objName[0] == '*' {
objName = fmt.Sprintf(`(%s)`, objName)
}
key := s.mergeBuildInNameToPattern(pattern, sname, mname, true)
m[key] = &handlerItem {
name : fmt.Sprintf(`%s.%s.%s`, pkgPath, objName, mname),
rtype : gROUTE_REGISTER_OBJECT,
ctype : nil,
fname : "",
faddr : faddr,
finit : finit,
fshut : fshut,
}
// 如果方法中带有Index方法那么额外自动增加一个路由规则匹配主URI
if strings.EqualFold(mname, "Index") {
p := key
if strings.EqualFold(p[len(p) - 6:], "/index") {
p = p[0 : len(p) - 6]
if len(p) == 0 {
p = "/"
}
}
m[p] = &handlerItem {
name : fmt.Sprintf(`%s.%s.%s`, pkgPath, objName, mname),
rtype : gROUTE_REGISTER_OBJECT,
ctype : nil,
fname : "",
faddr : faddr,
finit : finit,
fshut : fshut,
}
}
}
return s.bindHandlerByMap(m)
}
// 绑定对象到URI请求处理中会自动识别方法名称并附加到对应的URI地址后面
// 第三个参数methods支持多个方法注册多个方法以英文“,”号分隔,区分大小写
func (s *Server)BindObjectMethod(pattern string, obj interface{}, method string) error {
m := make(handlerMap)
v := reflect.ValueOf(obj)
t := v.Type()
sname := t.Elem().Name()
mname := strings.TrimSpace(method)
fval := v.MethodByName(mname)
if !fval.IsValid() {
return errors.New("invalid method name:" + mname)
}
faddr, ok := fval.Interface().(func(*Request))
if !ok {
s := fmt.Sprintf(`invalid medthod definition "%s", while "func(*Request)" is required`, fval.Type().String())
glog.Error(s)
return errors.New(s)
}
finit := (func(*Request))(nil)
fshut := (func(*Request))(nil)
if v.MethodByName("Init").IsValid() {
finit = v.MethodByName("Init").Interface().(func(*Request))
}
if v.MethodByName("Shut").IsValid() {
fshut = v.MethodByName("Shut").Interface().(func(*Request))
}
pkgPath := t.Elem().PkgPath()
pkgName := gfile.Basename(pkgPath)
objName := gstr.Replace(t.String(), fmt.Sprintf(`%s.`, pkgName), "")
if objName[0] == '*' {
objName = fmt.Sprintf(`(%s)`, objName)
}
key := s.mergeBuildInNameToPattern(pattern, sname, mname, false)
m[key] = &handlerItem{
name : fmt.Sprintf(`%s.%s.%s`, pkgPath, objName, mname),
rtype : gROUTE_REGISTER_OBJECT,
ctype : nil,
fname : "",
faddr : faddr,
finit : finit,
fshut : fshut,
}
return s.bindHandlerByMap(m)
}
// 绑定对象到URI请求处理中会自动识别方法名称并附加到对应的URI地址后面
// 需要注意对象方法的定义必须按照ghttp.HandlerFunc来定义
func (s *Server)BindObjectRest(pattern string, obj interface{}) error {
m := make(handlerMap)
v := reflect.ValueOf(obj)
t := v.Type()
finit := (func(*Request))(nil)
fshut := (func(*Request))(nil)
if v.MethodByName("Init").IsValid() {
finit = v.MethodByName("Init").Interface().(func(*Request))
}
if v.MethodByName("Shut").IsValid() {
fshut = v.MethodByName("Shut").Interface().(func(*Request))
}
pkgPath := t.Elem().PkgPath()
for i := 0; i < v.NumMethod(); i++ {
mname := t.Method(i).Name
method := strings.ToUpper(mname)
if _, ok := s.methodsMap[method]; !ok {
continue
}
faddr, ok := v.Method(i).Interface().(func(*Request))
if !ok {
s := fmt.Sprintf(`invalid medthod definition "%s", while "func()" is required`, v.Method(i).Type().String())
glog.Error(s)
return errors.New(s)
}
pkgName := gfile.Basename(pkgPath)
objName := gstr.Replace(t.String(), fmt.Sprintf(`%s.`, pkgName), "")
if objName[0] == '*' {
objName = fmt.Sprintf(`(%s)`, objName)
}
key := mname + ":" + pattern
m[key] = &handlerItem {
name : fmt.Sprintf(`%s.%s.%s`, pkgPath, objName, mname),
rtype : gROUTE_REGISTER_OBJECT,
ctype : nil,
fname : "",
faddr : faddr,
finit : finit,
fshut : fshut,
}
}
return s.bindHandlerByMap(m)
}