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{ ***************************************************************************
Copyright (c) 2016-2021 Kike Pérez
Unit : Quick.Core.Extensions.HealthChecks.Redis
Description : Core Extensions Entity Health Checks
Author : Kike Pérez
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;
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;
{ TRedisHealthCheckOptions }
constructor TRedisHealthCheckOptions.Create;
begin
inherited;
fReadTimeout := 3000;
fConnectionTimeout := 2000;
end;
end.