delphiredisclient开源GIT

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delphiredisclient - Redis client for Delphi

Delphi Redis Client版本2(此分支)与Delphi 10.1 Berlin兼容,更好。警告!如果您使用较旧的Delphi版本,则必须使用适用于Delphi 10 Seattle,XE8,XE7,XE6和XE5的Delphi Redis Client版本1(也适用于旧版本)。

Delphi REDIS客户端从第一个版本(或左右)开始在移动设备上运行,自从Delphi 10.2东京它也在Linux上工作(测试Ubuntu 16.x LTS)。

Delphi Redis Client能够发送所有Redis命令并使用内部解析器读取响应。此外,许多流行的命令具有专门的专用方法,这简化了利用率。

这是用于连接,发送命令和管理Redis服务器的Redis客户端界面。许多方法都是1-1映射到具有相同名称的Redis命令(例如,SET是Redis SET命令的映射)。计划实现某种集成设计模式的高级方法(例如,推送JSONObject,弹出流等)。

https://github.com/danieleteti/delphiredisclient 

IRedisClient = interface
    [‘{566C20FF-7D9F-4DAC-9B0E-A8AA7D29B0B4}‘]
    function &SET(const AKey, AValue: string): boolean; overload;
    function &SET(const AKey, AValue: TBytes): boolean; overload;
    function &SET(const AKey: string; AValue: TBytes): boolean; overload;
    function &SET(const AKey: string; AValue: TBytes; ASecsExpire: UInt64): boolean; overload;
    function &SET(const AKey: string; AValue: string; ASecsExpire: UInt64): boolean; overload;
    function SETNX(const AKey, AValue: string): boolean; overload;
    function SETNX(const AKey, AValue: TBytes): boolean; overload;
    function GET(const AKey: string; out AValue: string): boolean; overload;
    function GET(const AKey: TBytes; out AValue: TBytes): boolean; overload;
    function GET(const AKey: string; out AValue: TBytes): boolean; overload;
    function DEL(const AKeys: array of string): Integer;
    function TTL(const AKey: string): Integer;
    function EXISTS(const AKey: string): boolean;
    function MSET(const AKeysValues: array of string): boolean;
    function KEYS(const AKeyPattern: string): TArray<string>;
    function INCR(const AKey: string): NativeInt;
    function DECR(const AKey: string): NativeInt;
    function EXPIRE(const AKey: string; AExpireInSecond: UInt32): boolean;

    // strings functions
    function APPEND(const AKey, AValue: TBytes): UInt64; overload;
    function APPEND(const AKey, AValue: string): UInt64; overload;
    function STRLEN(const AKey: string): UInt64;
    function GETRANGE(const AKey: string; const AStart, AEnd: NativeInt): string;
    function SETRANGE(const AKey: string; const AOffset: NativeInt; const AValue: string)
      : NativeInt;

    // hash
    function HSET(const AKey, aField: string; AValue: string): Integer; overload;
    procedure HMSET(const AKey: string; aFields: TArray<string>; AValues: TArray<string>);
    function HMGET(const AKey: string; aFields: TArray<string>): TArray<string>;
    function HSET(const AKey, aField: string; AValue: TBytes): Integer; overload;
    function HGET(const AKey, aField: string; out AValue: TBytes): boolean; overload;
    function HGET(const AKey, aField: string; out AValue: string): boolean; overload;
    function HDEL(const AKey: string; aFields: TArray<string>): Integer;

    // lists
    function RPUSH(const AListKey: string; AValues: array of string): Integer;
    function RPUSHX(const AListKey: string; AValues: array of string): Integer;
    function RPOP(const AListKey: string; var Value: string): boolean;
    function LPUSH(const AListKey: string; AValues: array of string): Integer;
    function LPUSHX(const AListKey: string; AValues: array of string): Integer;
    function LPOP(const AListKey: string; out Value: string): boolean;
    function LLEN(const AListKey: string): Integer;
    procedure LTRIM(const AListKey: string; const AIndexStart, AIndexStop: Integer);
    function LRANGE(const AListKey: string; IndexStart, IndexStop: Integer)
      : TArray<string>;
    function RPOPLPUSH(const ARightListKey, ALeftListKey: string;
      var APoppedAndPushedElement: string): boolean; overload;
    function BRPOPLPUSH(const ARightListKey, ALeftListKey: string;
      var APoppedAndPushedElement: string; ATimeout: Int32): boolean; overload;
    function BLPOP(const AKeys: array of string; const ATimeout: Int32;
      out Value: TArray<string>): boolean;
    function BRPOP(const AKeys: array of string; const ATimeout: Int32;
      out Value: TArray<string>): boolean;
    function LREM(const AListKey: string; const ACount: Integer;
      const AValue: string): Integer;

    // sets
    function SADD(const AKey, AValue: TBytes): Integer; overload;
    function SADD(const AKey, AValue: string): Integer; overload;
    function SREM(const AKey, AValue: TBytes): Integer; overload;
    function SREM(const AKey, AValue: string): Integer; overload;
    function SMEMBERS(const AKey: string): TArray<string>;
    function SCARD(const AKey: string): Integer;

    // ordered sets
    function ZADD(const AKey: string; const AScore: Int64; const AMember: string): Integer;
    function ZREM(const AKey: string; const AMember: string): Integer;
    function ZCARD(const AKey: string): Integer;
    function ZCOUNT(const AKey: string; const AMin, AMax: Int64): Integer;
    function ZRANK(const AKey: string; const AMember: string; out ARank: Int64): boolean;
    function ZRANGE(const AKey: string; const AStart, AStop: Int64): TArray<string>;
    function ZRANGEWithScore(const AKey: string; const AStart, AStop: Int64): TArray<string>;
    function ZINCRBY(const AKey: string; const AIncrement: Int64; const AMember: string): string;

    // lua scripts
    function EVAL(const AScript: string; AKeys: array of string; AValues: array of string): Integer;

    // system
    procedure FLUSHDB;
    procedure SELECT(const ADBIndex: Integer);
    procedure AUTH(const aPassword: string);

    // raw execute
    function ExecuteAndGetArray(const RedisCommand: IRedisCommand)
      : TArray<string>;
    function ExecuteWithIntegerResult(const RedisCommand: string)
      : TArray<string>; overload;
    function ExecuteWithIntegerResult(const RedisCommand: IRedisCommand)
      : Int64; overload;
    function ExecuteWithStringResult(const RedisCommand: IRedisCommand): string;
    
    // pubsub
    procedure SUBSCRIBE(const AChannels: array of string;
      ACallback: TProc<string, string>;
      ATimeoutCallback: TRedisTimeoutCallback = nil);
    function PUBLISH(const AChannel: string; AMessage: string): Integer;
    
    // transactions
    function MULTI(ARedisTansactionProc: TRedisTransactionProc): TArray<string>; overload;
    procedure MULTI; overload;
    function EXEC: TArray<string>;
    procedure WATCH(const AKeys: array of string);

    procedure DISCARD;
    // non sys
    function Tokenize(const ARedisCommand: string): TArray<string>;
    procedure Disconnect;
    function InTransaction: boolean;
    // client
    procedure ClientSetName(const ClientName: string);
    procedure SetCommandTimeout(const Timeout: Int32);
    function Clone: IRedisClient;
  end;

Delphi Redis Client is not tied to a specific TCP/IP library. Currently it uses INDY but you can implement the IRedisNetLibAdapter and wrap whatever library you like.

  IRedisNetLibAdapter = interface
    [‘{2DB21166-2E68-4DC4-9870-5DCCAAE877A3}‘]
    procedure Connect(const HostName: string; const Port: Word);
    procedure Send(const Value: string);
    procedure Write(const Bytes: TBytes);
    procedure WriteCrLf(const Bytes: TBytes);
    procedure SendCmd(const Values: IRedisCommand);
    function Receive(const Timeout: Int32): string;
    function ReceiveBytes(const ACount: Int64; const Timeout: Int32): System.TArray<System.Byte>;
    procedure Disconnect;
    function LastReadWasTimedOut: boolean;
  end;

This is a simple demo showing the utilization pattern (using the builtin INDY library support).

program CmdsSample1;

{$APPTYPE CONSOLE}

{$R *.res}


uses
  System.SysUtils,
  Redis.Commons, // Interfaces and types
  Redis.Client, // The client itself
  Redis.NetLib.INDY, // The tcp library used
  Redis.Values; // nullable types for redis commands

var
  lRedis: IRedisClient;
  lValue: TRedisString;

begin
  try
    lRedis := TRedisClient.Create;
    lRedis.Connect;
    lRedis.&SET(‘firstname‘, ‘Daniele‘);
    lValue := lRedis.GET(‘firstname‘);
    if not lValue.IsNull then
      WriteLn(‘KEY FOUND! key "firstname" => ‘, lValue.Value);
    WriteLn(‘DEL firstname‘);
    lRedis.DEL([‘firstname‘]); // remove the key
    lValue := lRedis.GET(‘firstname‘);
    if lValue.IsNull then
      WriteLn(‘Key "firstname" doesn‘‘t exist (it‘‘s correct!)‘)
    else
      WriteLn(lValue.Value); // never printed

  except
    on E: Exception do
      WriteLn(E.ClassName, ‘: ‘, E.Message);
  end;
  readln; //just to keep the command prompt open

end.

 

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