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application.go
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application.go
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package app
import (
"github.com/hidevopsio/hiboot/pkg/utils/io"
"github.com/hidevopsio/hiboot/pkg/utils/cmap"
"github.com/hidevopsio/hiboot/pkg/utils/reflector"
"reflect"
"github.com/hidevopsio/hiboot/pkg/inject"
"github.com/hidevopsio/hiboot/pkg/system"
"errors"
"github.com/hidevopsio/hiboot/pkg/factory/autoconfigure"
"github.com/hidevopsio/hiboot/pkg/factory/instance"
"github.com/hidevopsio/hiboot/pkg/log"
"github.com/kataras/iris/context"
)
type Application interface {
Init(args ...interface{}) error
Run()
RegisterController(controller interface{}) error
Use(handlers ...context.Handler)
}
type Configuration interface {}
type PreConfiguration interface {}
type PostConfiguration interface {}
type BaseApplication struct {
WorkDir string
configurations cmap.ConcurrentMap
instances cmap.ConcurrentMap
potatoes cmap.ConcurrentMap
configurableFactory *autoconfigure.ConfigurableFactory
systemConfig *system.Configuration
postProcessor postProcessor
}
var (
preConfigContainer cmap.ConcurrentMap
configContainer cmap.ConcurrentMap
postConfigContainer cmap.ConcurrentMap
instanceContainer cmap.ConcurrentMap
InvalidObjectTypeError = errors.New("[app] invalid object type")
ConfigurationNameIsTakenError = errors.New("[app] configuration name is already taken")
ComponentNameIsTakenError = errors.New("[app] component name is already taken")
)
func init() {
preConfigContainer = cmap.New()
configContainer = cmap.New()
postConfigContainer = cmap.New()
instanceContainer = cmap.New()
}
func parseInstance(eliminator string, params ...interface{}) (name string, inst interface{}) {
if len(params) == 2 && reflect.TypeOf(params[0]).Kind() == reflect.String {
name = params[0].(string)
inst = params[1]
} else {
name = reflector.ParseObjectName(params[0], eliminator)
inst = params[0]
}
return
}
func validateObjectType(inst interface{}) error {
val := reflect.ValueOf(inst)
//log.Println(val.Kind())
//log.Println(reflect.Indirect(val).Kind())
if val.Kind() == reflect.Ptr && reflect.Indirect(val).Kind() == reflect.Struct {
return nil
}
return InvalidObjectTypeError
}
// AutoConfiguration
func AutoConfiguration(params ...interface{}) (err error) {
if len(params) == 0 || params[0] == nil {
err = InvalidObjectTypeError
log.Error(err)
return
}
name, inst := parseInstance("Configuration", params...)
if name == "" || name == "configuration" {
name = reflector.ParseObjectPkgName(params[0])
}
ifcField := reflector.GetEmbeddedInterfaceField(inst)
var c cmap.ConcurrentMap
if ifcField.Anonymous {
switch ifcField.Name {
case "Configuration":
c = configContainer
case "PreConfiguration":
c = preConfigContainer
case "PostConfiguration":
c = postConfigContainer
default:
err = InvalidObjectTypeError
return
}
} else {
err = InvalidObjectTypeError
log.Error(err)
return
}
if _, ok := c.Get(name); ok {
err = ConfigurationNameIsTakenError
log.Error(err)
return
}
err = validateObjectType(inst)
if err == nil {
c.Set(name, inst)
} else {
log.Error(err)
}
return err
}
// Component
func Component(params ...interface{}) error {
if len(params) == 0 || params[0] == nil {
return InvalidObjectTypeError
}
var name string
var inst interface{}
if len(params) == 2 && reflect.TypeOf(params[0]).Kind() == reflect.String {
name = params[0].(string)
inst = params[1]
} else {
inst = params[0]
ifcField := reflector.GetEmbeddedInterfaceField(inst)
if ifcField.Anonymous {
name = ifcField.Name
}
}
if _, ok := instanceContainer.Get(name); ok {
return ComponentNameIsTakenError
}
err := validateObjectType(inst)
if err == nil {
instanceContainer.Set(name, inst)
}
return err
}
// BeforeInitialization ?
func (a *BaseApplication) Init(args ...interface{}) error {
a.WorkDir = io.GetWorkDir()
a.configurations = cmap.New()
a.instances = instanceContainer
instanceFactory := new(instance.InstanceFactory)
instanceFactory.Initialize(a.instances)
a.instances.Set("instanceFactory", instanceFactory)
configurableFactory := new(autoconfigure.ConfigurableFactory)
configurableFactory.InstanceFactory = instanceFactory
a.instances.Set("configurableFactory", configurableFactory)
inject.SetInstance(a.instances)
configurableFactory.Initialize(a.configurations)
a.systemConfig = new(system.Configuration)
configurableFactory.BuildSystemConfig(a.systemConfig)
a.configurableFactory = configurableFactory
return nil
}
// Config returns application config
func (a *BaseApplication) SystemConfig() *system.Configuration {
return a.systemConfig
}
func (a *BaseApplication) BuildConfigurations() {
a.configurableFactory.Build(preConfigContainer, configContainer, postConfigContainer)
}
func (a *BaseApplication) ConfigurableFactory() *autoconfigure.ConfigurableFactory {
return a.configurableFactory
}
func (a *BaseApplication) BeforeInitialization() {
// pass user's instances
a.postProcessor.BeforeInitialization(a.configurableFactory)
}
func (a *BaseApplication) AfterInitialization(configs ...cmap.ConcurrentMap) {
// pass user's instances
a.postProcessor.AfterInitialization(a.configurableFactory)
}
func (a *BaseApplication) RegisterController(controller interface{}) error {
return nil
}
func (a *BaseApplication) Use(handlers ...context.Handler) {
}