errors.go raw

   1  /**
   2   * Copyright 2016 IBM Corp.
   3   *
   4   * Licensed under the Apache License, Version 2.0 (the "License");
   5   * you may not use this file except in compliance with the License.
   6   * You may obtain a copy of the License at
   7   *
   8   *    http://www.apache.org/licenses/LICENSE-2.0
   9   *
  10   * Unless required by applicable law or agreed to in writing, software
  11   * distributed under the License is distributed on an "AS IS" BASIS,
  12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13   * See the License for the specific language governing permissions and
  14   * limitations under the License.
  15   */
  16  
  17  package sl
  18  
  19  import "fmt"
  20  
  21  // Error contains detailed information about an API error, which can be useful
  22  // for debugging, or when finer error handling is required than just the mere
  23  // presence or absence of an error.
  24  //
  25  // Error implements the error interface
  26  type Error struct {
  27  	StatusCode int
  28  	Exception  string `json:"code"`
  29  	Message    string `json:"error"`
  30  	Wrapped    error
  31  }
  32  
  33  func (r Error) Error() string {
  34  	if r.Wrapped != nil {
  35  		return r.Wrapped.Error()
  36  	}
  37  
  38  	var msg string
  39  	if r.Exception != "" {
  40  		msg = r.Exception + ": "
  41  	}
  42  	if r.Message != "" {
  43  		msg = msg + r.Message + " "
  44  	}
  45  	if r.StatusCode != 0 {
  46  		msg = fmt.Sprintf("%s(HTTP %d)", msg, r.StatusCode)
  47  	}
  48  	return msg
  49  }
  50