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reference_service.go
49 lines (45 loc) · 1.48 KB
/
reference_service.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package reflectx
import "reflect"
type ReferencedService interface {
Reference() string
}
// GetReference return the reference id of the service.
// If the service implemented the ReferencedService interface,
// it will call the Reference method. If not, it will
// return the struct name as the reference id.
func GetReference(service interface{}) string {
if s, ok := service.(ReferencedService); ok {
return s.Reference()
}
ref := ""
sType := reflect.TypeOf(service)
kind := sType.Kind()
switch kind {
case reflect.Struct:
ref = sType.Name()
case reflect.Ptr:
sName := sType.Elem().Name()
if sName != "" {
ref = sName
} else {
ref = sType.Elem().Field(0).Name
}
}
return ref
}