github.com/ystia/yorc/v4@v4.3.0/storage/utils/utils.go (about)

     1  // Copyright 2019 Bull S.A.S. Atos Technologies - Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois, France.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package utils
    16  
    17  import "github.com/pkg/errors"
    18  
    19  // CheckKeyAndValue returns an error if k == "" or if v == nil
    20  func CheckKeyAndValue(k string, v interface{}) error {
    21  	if err := CheckKey(k); err != nil {
    22  		return err
    23  	}
    24  	return CheckVal(v)
    25  }
    26  
    27  // CheckKey returns an error if k == ""
    28  func CheckKey(k string) error {
    29  	if k == "" {
    30  		return errors.New("The passed key is an empty string, which is invalid")
    31  	}
    32  	return nil
    33  }
    34  
    35  // CheckVal returns an error if v == nil
    36  func CheckVal(v interface{}) error {
    37  	if v == nil {
    38  		return errors.New("The passed value is nil, which is not allowed")
    39  	}
    40  	return nil
    41  }