storj.io/minio@v0.0.0-20230509071714-0cbc90f649b1/pkg/event/targetid.go (about)

     1  /*
     2   * MinIO Cloud Storage, (C) 2018 MinIO, Inc.
     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 event
    18  
    19  import (
    20  	"encoding/json"
    21  	"fmt"
    22  	"strings"
    23  )
    24  
    25  // TargetID - holds identification and name strings of notification target.
    26  type TargetID struct {
    27  	ID   string
    28  	Name string
    29  }
    30  
    31  // String - returns string representation.
    32  func (tid TargetID) String() string {
    33  	return tid.ID + ":" + tid.Name
    34  }
    35  
    36  // ToARN - converts to ARN.
    37  func (tid TargetID) ToARN(region string) ARN {
    38  	return ARN{TargetID: tid, region: region}
    39  }
    40  
    41  // MarshalJSON - encodes to JSON data.
    42  func (tid TargetID) MarshalJSON() ([]byte, error) {
    43  	return json.Marshal(tid.String())
    44  }
    45  
    46  // UnmarshalJSON - decodes JSON data.
    47  func (tid *TargetID) UnmarshalJSON(data []byte) error {
    48  	var s string
    49  	if err := json.Unmarshal(data, &s); err != nil {
    50  		return err
    51  	}
    52  
    53  	targetID, err := parseTargetID(s)
    54  	if err != nil {
    55  		return err
    56  	}
    57  
    58  	*tid = *targetID
    59  	return nil
    60  }
    61  
    62  // parseTargetID - parses string to TargetID.
    63  func parseTargetID(s string) (*TargetID, error) {
    64  	tokens := strings.Split(s, ":")
    65  	if len(tokens) != 2 {
    66  		return nil, fmt.Errorf("invalid TargetID format '%v'", s)
    67  	}
    68  
    69  	return &TargetID{
    70  		ID:   tokens[0],
    71  		Name: tokens[1],
    72  	}, nil
    73  }