Rework Error interface

Package Errors:
- add function to check & cast error interface into golib Error interface
- update CodeError type to simplify management & error creation
- add function to simplify call of Error function from a generic error interface
- remove some useless function from Error interface

All Other Packages:
- apply change of package Errors into all other packages

httpserver/config.go

@@ -253,7 +253,7 @@ func (c *Config) CheckTLS() (libtls.TLSConfig, liberr.Error) {
 	if ssl, err := c.GetTLS(); err != nil {
 		return nil, err
 	} else if ssl == nil || ssl.LenCertificatePair() < 1 {
-		return nil, ErrorServerValidate.ErrorParent(fmt.Errorf("not certificates defined"))
+		return nil, ErrorServerValidate.Error(fmt.Errorf("not certificates defined"))
 	} else {
 		return ssl, nil
 	}
@@ -342,12 +342,12 @@ func (c *Config) Validate() liberr.Error {
 
 	if er := libval.New().Struct(c); er != nil {
 		if e, ok := er.(*libval.InvalidValidationError); ok {
-			err.AddParent(e)
+			err.Add(e)
 		}
 
 		for _, e := range er.(libval.ValidationErrors) {
 			//nolint goerr113
-			err.AddParent(fmt.Errorf("config field '%s' is not validated by constraint '%s'", e.Namespace(), e.ActualTag()))
+			err.Add(fmt.Errorf("config field '%s' is not validated by constraint '%s'", e.Namespace(), e.ActualTag()))
 		}
 	}
 
@@ -400,7 +400,7 @@ func (o *srv) SetConfig(cfg Config, defLog liblog.FuncLog) error {
 	if o.HandlerHas(cfg.HandlerKey) {
 		o.HandlerStoreFct(cfg.HandlerKey)
 	} else {
-		return ErrorServerValidate.ErrorParent(fmt.Errorf("handler is missing or not existing"))
+		return ErrorServerValidate.Error(fmt.Errorf("handler is missing or not existing"))
 	}
 
 	o.c.Store(cfgName, cfg.Name)

httpserver/pool/config.go

@@ -67,7 +67,7 @@ func (p Config) Pool(ctx libctx.FuncContext, hdl srvtps.FuncHandler, defLog libl
 
 	p.Walk(func(cfg libhtp.Config) bool {
 		if err := r.StoreNew(cfg, defLog); err != nil {
-			e.AddParent(err)
+			e.Add(err)
 		}
 		return true
 	})
@@ -98,7 +98,7 @@ func (p Config) Validate() liberr.Error {
 		var err liberr.Error
 
 		if err = cfg.Validate(); err != nil {
-			e.AddParentError(err)
+			e.Add(err)
 		}
 
 		return true

httpserver/pool/model.go

@@ -127,7 +127,7 @@ func (o *pool) Monitor(vrs libver.Version) ([]montps.Monitor, liberr.Error) {
 
 	o.Walk(func(bindAddress string, srv libhtp.Server) bool {
 		if p, e := srv.Monitor(vrs); e != nil {
-			err.AddParent(e)
+			err.Add(e)
 		} else {
 			res = append(res, p)
 		}

httpserver/pool/server.go

@@ -37,7 +37,7 @@ func (o *pool) Start(ctx context.Context) error {
 
 	o.Walk(func(bindAddress string, srv libhtp.Server) bool {
 		if e := srv.Start(ctx); e != nil {
-			err.AddParent(e)
+			err.Add(e)
 		} else {
 			o.Store(srv)
 		}
@@ -57,7 +57,7 @@ func (o *pool) Stop(ctx context.Context) error {
 
 	o.Walk(func(bindAddress string, srv libhtp.Server) bool {
 		if e := srv.Stop(ctx); e != nil {
-			err.AddParent(e)
+			err.Add(e)
 		} else {
 			o.Store(srv)
 		}
@@ -77,7 +77,7 @@ func (o *pool) Restart(ctx context.Context) error {
 
 	o.Walk(func(bindAddress string, srv libhtp.Server) bool {
 		if e := srv.Restart(ctx); e != nil {
-			err.AddParent(e)
+			err.Add(e)
 		} else {
 			o.Store(srv)
 		}

httpserver/run.go

@@ -158,7 +158,7 @@ func (o *srv) runFuncStart(ctx context.Context) (err error) {
 			ent.Log()
 			return err
 		} else if ser = o.getServer(); ser == nil {
-			err = ErrorServerStart.ErrorParent(fmt.Errorf("cannot create new server, cannot retrieve server"))
+			err = ErrorServerStart.Error(fmt.Errorf("cannot create new server, cannot retrieve server"))
 			ent := o.logger().Entry(loglvl.ErrorLevel, "starting http server")
 			ent.ErrorAdd(true, err)
 			ent.Log()
@@ -208,7 +208,7 @@ func (o *srv) runFuncStop(ctx context.Context) (err error) {
 	}()
 
 	if ser = o.getServer(); ser == nil {
-		err = ErrorServerStart.ErrorParent(fmt.Errorf("cannot retrieve server"))
+		err = ErrorServerStart.Error(fmt.Errorf("cannot retrieve server"))
 		ent := o.logger().Entry(loglvl.ErrorLevel, "starting http server")
 		ent.ErrorAdd(true, err)
 		ent.Log()

httpserver/server.go

@@ -82,7 +82,7 @@ func (o *srv) setServer(ctx context.Context) error {
 	)
 
 	if o.IsTLS() && ssl == nil {
-		err := ErrorServerValidate.ErrorParent(fmt.Errorf("TLS Config is not well defined"))
+		err := ErrorServerValidate.Error(fmt.Errorf("TLS Config is not well defined"))
 		ent := o.logger().Entry(loglvl.ErrorLevel, "starting http server")
 		ent.ErrorAdd(true, err)
 		ent.Log()

httpserver/serverOpt.go

@@ -103,7 +103,7 @@ func (o *optServer) initServer(s *http.Server) liberr.Error {
 	}
 
 	if e := http2.ConfigureServer(s, s2); e != nil {
-		return ErrorHTTP2Configure.ErrorParent(e)
+		return ErrorHTTP2Configure.Error(e)
 	}
 
 	return nil