QuickCore/Quick.Core.Extensions.HealthChecks.Redis.pas at master · exilon/QuickCore · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
{ ***************************************************************************

  Copyright (c) 2016-2026 Kike Perez

  Unit        : Quick.Core.Extensions.HealthChecks.Redis
  Description : Core Extensions Entity Health Checks
  Author      : Kike Perez
  Version     : 1.0
  Created     : 14/02/2021
  Modified    : 21/02/2021

  This file is part of QuickCore: https://github.com/exilon/QuickCore

 ***************************************************************************

  Licensed 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.

 *************************************************************************** }

unit Quick.Core.Extensions.HealthChecks.Redis;

{$i QuickCore.inc}

interface

uses
  System.SysUtils,
  System.TypInfo,
  System.TimeSpan,
  Quick.Commons,
  Quick.Options,
  Quick.Data.Redis,
  Quick.Core.DependencyInjection,
  Quick.Core.Extensions.HealthChecks;

type
  TRedisHealthCheckOptions = class(TOptions)
  private
    fHost : string;
    fPort : Integer;
    fPassword : string;
    fDatabaseNumber : Integer;
    fConnectionTimeout: Integer;
    fReadTimeout: Integer;
  public
    constructor Create; override;
  published
    property Host : string read fHost write fHost;
    property Port : Integer read fPort write fPort;
    property Password : string read fPassword write fPassword;
    property DatabaseNumber : Integer read fDatabaseNumber write fDatabaseNumber;
    property ConnectionTimeout : Integer read fConnectionTimeout write fConnectionTimeout;
    property ReadTimeout : Integer read fReadTimeout write fReadTimeout;
  end;

  TRedisHealthCheck = class(THealthCheck)
  private
    fRedisClient : TRedisClient;
    fRedisOptions : TRedisHealthCheckOptions;
  public
    constructor Create(aRedisOptions : TRedisHealthCheckOptions; aTimeSpan : TTimeSpan);
    destructor Destroy; override;
    function GetCheckKind : string; override;
    function GetTags : string; override;
    procedure Check; override;
  end;

  TRedisHealthChecksExtension = class(THealthChecksExtension)
    class function AddRedisCheck(const aName : string; aRedisOptionsProc : TConfigureOptionsProc<TRedisHealthCheckOptions>; aTimeSpan : TTimeSpan) : THealthChecksService;
  end;

implementation

{ TRedisHealthChecksExtension }

class function TRedisHealthChecksExtension.AddRedisCheck(const aName : string; aRedisOptionsProc : TConfigureOptionsProc<TRedisHealthCheckOptions>; aTimeSpan : TTimeSpan) : THealthChecksService;
var
  check : IHealthCheck;
begin
  if not Assigned(aRedisOptionsProc) then raise Exception.Create('RedisOptions param cannot be nil!');

  var redisOptions := TRedisHealthCheckOptions.Create;
  aRedisOptionsProc(redisOptions);
  check := TRedisHealthCheck.Create(redisOptions,aTimeSpan);
  check.Name := aName;
  Result := HealthChecksService.AddCheck(check);
end;

{ TEntityHealthCheck }

procedure TRedisHealthCheck.Check;
begin
  inherited;
  fRedisClient.Disconnect;
  try
    fRedisClient.Connect;
  finally
    fRedisClient.Disconnect;
  end;
end;

constructor TRedisHealthCheck.Create(aRedisOptions : TRedisHealthCheckOptions; aTimeSpan : TTimeSpan);
begin
  inherited Create(aTimeSpan);
  fName := 'Redis';
  fRedisOptions := aRedisOptions;
  fRedisClient := TRedisClient.Create;
  fRedisClient.Host := aRedisOptions.Host;
  fRedisClient.Port := aRedisOptions.Port;
  fRedisClient.DataBaseNumber := aRedisOptions.DatabaseNumber;
  fRedisClient.Password := aRedisOptions.Password;
  fRedisClient.ConnectionTimeout := aRedisOptions.ConnectionTimeout;
  fRedisClient.ReadTimeout := aRedisOptions.ReadTimeout;
end;

destructor TRedisHealthCheck.Destroy;
begin
  fRedisClient.Free;
  inherited;
end;

function TRedisHealthCheck.GetCheckKind: string;
begin
  Result := 'redis';
end;

function TRedisHealthCheck.GetTags: string;
begin
  Result := Format('{"host":"%s","port":%d,"database":%d}',[fRedisOptions.Host, fRedisOptions.Port, fRedisOptions.DatabaseNumber]);
end;

{ TRedisHealthCheckOptions }

constructor TRedisHealthCheckOptions.Create;
begin
  inherited;
  fReadTimeout := 3000;
  fConnectionTimeout := 2000;
end;

end.