github.com/minio/minio@v0.0.0-20240328213742-3f72439b8a27/internal/event/targetid.go (about)

     1  // Copyright (c) 2015-2021 MinIO, Inc.
     2  //
     3  // This file is part of MinIO Object Storage stack
     4  //
     5  // This program is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Affero General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // This program is distributed in the hope that it will be useful
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU Affero General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Affero General Public License
    16  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package event
    19  
    20  import (
    21  	"encoding/json"
    22  	"fmt"
    23  	"strings"
    24  )
    25  
    26  // TargetID - holds identification and name strings of notification target.
    27  type TargetID struct {
    28  	ID   string
    29  	Name string
    30  }
    31  
    32  // String - returns string representation.
    33  func (tid TargetID) String() string {
    34  	return tid.ID + ":" + tid.Name
    35  }
    36  
    37  // ToARN - converts to ARN.
    38  func (tid TargetID) ToARN(region string) ARN {
    39  	return ARN{TargetID: tid, region: region}
    40  }
    41  
    42  // MarshalJSON - encodes to JSON data.
    43  func (tid TargetID) MarshalJSON() ([]byte, error) {
    44  	return json.Marshal(tid.String())
    45  }
    46  
    47  // UnmarshalJSON - decodes JSON data.
    48  func (tid *TargetID) UnmarshalJSON(data []byte) error {
    49  	var s string
    50  	if err := json.Unmarshal(data, &s); err != nil {
    51  		return err
    52  	}
    53  
    54  	targetID, err := parseTargetID(s)
    55  	if err != nil {
    56  		return err
    57  	}
    58  
    59  	*tid = *targetID
    60  	return nil
    61  }
    62  
    63  // parseTargetID - parses string to TargetID.
    64  func parseTargetID(s string) (*TargetID, error) {
    65  	tokens := strings.Split(s, ":")
    66  	if len(tokens) != 2 {
    67  		return nil, fmt.Errorf("invalid TargetID format '%v'", s)
    68  	}
    69  
    70  	return &TargetID{
    71  		ID:   tokens[0],
    72  		Name: tokens[1],
    73  	}, nil
    74  }