/QuickLib

Delphi/Firemonkey (Windows,Linux,OSX/IOS/Android) and freepascal (Windows/Linux) library for Quick development and crossplatform support

Primary LanguagePascalApache License 2.0Apache-2.0

QuickLib

Small delphi/Firemonkey(Windows, Linux, Android, OSX & IOS) and fpc(Windows & Linux) library containing interesting and quick to implement functions, created to simplify application development and crossplatform support and improve productivity.

Areas of functionality:

  • Mapping: Map fields from a class to other class, copy objects, etc..
  • Config: Thread your config as an object and load/save from/to file (Json/Yaml) or Windows Registry.
  • Serialization: Serialize objects to/from json/Yaml.
  • Scheduling: Schedule tasks launching as independent threads with retry policies.
  • Threading: Simplify run and control of multithread background tasks, Thread-safe Lists, queues, etc
  • Data: Flexible data interchange and storage, allowing several input-output types.
  • Cloud: Simplify cloud Azure/Amazon file management, send emails and more.
  • Querying: Indexed Lists, Searchable Lists and Linq query system for generic lists and arrays.
  • Benchmark: Time elapsed control and benchmark functions.
  • Filesystem: Process and Services control, file modify monitors and helpers, etc...
  • FailControl: Fail and Retry policies.

Main units description:

  • Quick.Commons: Functions frequently needed in the day to day of a developer.
  • Quick.AppService: Allow a console app to run as console mode or service mode with same code simplifying debug tasks.
  • Quick.Azure/Amazon: Simplifies blob iteraction with Azure and Amazon Cloud Storage.
  • Quick.Network: CIDR and IP Range functions.
  • Quick.Chrono: Chronometer and Benchmark a piece of code is simple.
  • Quick.Console: Write log messages to console with colors and more...
  • Quick.Log: Log to disk or memory with verbose levels and daily or max space rotation.
  • Quick.Config: Load/Save a config as Json or Yaml file or Windows Registry keys and manage it as an object.
  • Quick.FileMonitor: Monitorizes a file for changes and throws events.
  • Quick.JsonUtils: Utils for working with json objects.
  • Quick.SMTP: Send email with two code lines.
  • Quick.Threads: Thread safe classes, scheduling and backgrounds tasks with retry policies.
  • Quick.Process: Manages windows processes.
  • Quick.Services: Manages windows services.
  • Quick.Format: String format.
  • Quick.RTTI.Utils: Simplifies working with RTTI.
  • Quick.JsonSerializer: Serializes an object from/to json text. You can define if public or published will be processed (only Delphi, fpc rtti only supports published properties)
  • Quick.AutoMapper: Map fields from one class to another class. Allows custom mappings to match different fields and custom mapping procedure to cast/convert fields manually.
  • Quick.JsonRecord: Used as a DTO class, with json serialize and mapping functions included.
  • Quick.Lists: Improved lists with indexing or search features.
  • Quick.Value FlexValue stores any data type and allow pass to other class with integrated operators and autofrees.
  • Quick.Arrays: Improved arrays.
  • Quick.YAML: Yaml object structure.
  • Quick.YAML.Serializer: Serialize/Deserialize object from/to Yaml.
  • Quick.Expression: Evaluate object properties using expressions.
  • Quick.Linq: Makes Linq queries to any TObjectList, TList, TArray and TXArray, performing Select by complex Where like SQL syntax, update and order over your list.

Updates:

  • NEW: Now included on RAD Studio GetIt package manager.
  • NEW: Background & Scheduled task with retry policies
  • NEW: RunTask, FaultControl
  • NEW: Linq over generic lists and arrays.
  • NEW: QuickConfig YAML provider.
  • NEW: YAML Object and Serializer
  • NEW: AutoMapper customapping path namespaces style.
  • NEW: FlexArray, FlexPair & FlexPairArray.
  • NEW: AutoMapper mapping procedures (see documentation below)
  • NEW: JsonSerializer improved
  • NEW: TXArray: array like TList
  • NEW: Delphi Linux compatibility
  • NEW: QuickConfigJson reload if config file changed
  • NEW: First version with OSX/IOS partial support
  • NEW: Delphinus-Support

Installation:

  • From package managers:
  1. Search "QuickLib" on Delphinus or GetIt package managers and click Install
  • From Github:
  1. Clone Github repository or download zip file and extract it.
  2. Add QuickLib folder to your path libraries on Delphi IDE.

Documentation:

Quick.AppService: Allow a console app to run as console mode or service mode with same code simplifying debug tasks.

if not AppService.IsRunningAsService then
begin
    ...your code running as console
end
else
begin
    AppService.ServiceName := 'MyService';
    AppService.DisplayName := 'MyServicesvc';
    //you can pass an anonymous method to events
    AppService.OnStart := procedure
                          begin
                            ...your start code
	                      end;
    AppService.OnExecute := YourExecuteFunction;
    AppService.OnStop := YourStopFunction;
    AppService.CheckParams;
end;

Quick.Azure/Amazon: Simplifies blob iteraction with Azure and Amazon Cloud Storage.

//connect to a Azure blobstorage
QuickAzure := TQuickAzure.Create(AzureAccountName,AzureAccountKey);

//download a blob file to a stream
done := QuickAzure.GetBlob('MyContainer','MyFile.jpg',ResponseInfo,MyStream);
    
//check if exists a folder
found := ExistFolder('MyContainer','/Public/Documents/Personal');
    
//list blobs starting with a pattern (recursively or not)
for azBlob in ListBlobs('MyContainer','/Public/Documents',Recursive,ResponseInfo) do
begin
    if azBlob.Size > 1000 then Showmessage(azBlob.Name);
end;

Quick.Network: CIDR and IP Range functions.

//convert ip string to integer
IPv4ToInt('192.168.1.10');

//get first and last ip of a subnet scope
GetIpRange('192.168.100.0','255.255.255.0',LowIp,HighIP);

Quick.Commons: Functions frequently needed in the everyday of a developer.

//coverts UTC time TDateTime to Local date time
UTCToLocalTime(MyUTCTime);
    
//generate a 10 char length random password with alfanumeric and signs.
RandomPassword(10,[pfIncludeNumbers,pfIncludeSigns]);

//Capitalize every word of a phrase
CapitalizeAll('the grey fox'); //returns "The Grey Fox"

//Simple TCounter and TTimeCounter for loops
counter := TCounter;
counter.Init(200);
timecounter : TTimeCounter;
timecounter.Init(10000);
while true do
begin
    Inc(n);
    {your procedural process here}
    //every 200 steps writes to console
    if counter.Check then writeln(Format('Processed %d entries',[n]));
    //every 10 seconds writes to console
    if timecounter.Check then writeln('Im working...'); 
end;

Quick.Chrono: Chronometer and Benchmark a piece of code is simple.

//get elapsed time execution of a code part
Chrono := TChronometer.Create(False);
Chrono.Start;
...code you need benchmark
Chrono.Stop;

//shows elapsed time in LongTime format (2 hour(s) and 10 minute(s))
Showmessage(Chrono.TimeElapsed(True));

//shows elapsed time in ShortTime format (02:10:00)
Showmessage(Chrono.TimeElapsed(False));
//get benchmak info of a process
Chrono := TChronoBenchMark.Create;
Chrono.TotalProcess := 100000;
for i := 1 to 10000 do
begin
    {your process here}
    Chrono.CurrentProcess := i;
    //shows estimated time your process will take in x hour(s), x minute(s) x second(s) format
    writeln(Chrono.EstimatedTime(True));
    //shows speed: num items per second processed of your process
    writeln(Format('Items processed %d/sec',[Chrono.Speed]));
end;
writeln(Chrono.ElapsedTime(False)); //shows total time elapsed in 00:00:00 format

Quick.Console: Write log messages to console with colors and more...

//define which level of output needed
Console.Verbose := LOG_DEBUG;

//writes line to console in red color
cout('Error x',etError); 

//writes formatted line in green color
coutFmt('Proccess %s finished',[ProccesName],etSuccess);

//writes integer
cout(12348);

//Connect a QuickLog and write to disk and screen with one line of code (with independent verbose levels)
MyQuickLog := TQuickLog.Create;
MyQuickLog.Verbose := LOG_ALL;
Console.Verbose := LOG_ONLYERRORS;
Console.Log := MyQuickLog;

Quick.Log: Log to disk or memory with verbose levels and daily or max space rotation.

//write a header on start with info as running path, appname, debugmode, user, etc...
Log.ShowHeader := True;

//sets log with rotation at 20MB
Log.SetLog('.\mylog.log',False,20);

//write an error message
Log.Add('Error x',etError);

//write formatted error message
Log.Add('Error is %s',[ErrorStr],etError);

Quick.Config: Load/Save a config as Json or Yaml file or Windows Registry keys. Create a descend class from TAppConfigJson, TAppConfigYaml or TAppConfigRegistry and added published properties will be loaded/saved. Files configs can be reloaded on detect files changes.

//create a class heritage
TMyConfig = class(TAppConfigJson)
private
    fName : string;
    fSurname : string;
    fStatus : Integer;
published
    property Name : string read fName write fName;
    property SurName : string read fSurname write fSurname;
    property Status : Integer read fStatus write fStatus;
end;

//create your config to json file
//Add Quick.Config.Json to your uses
MyConfig := TMyConfig.Create('Config.json');
MyConfig.Provider.CreateIfNotExists := True;
MyConfig.Provider.ReloadIfFileModified := True;
MyConfig.Name := 'John';
MyConfig.Surname := 'Smith';
//load
MyConfig.Load;
//save
MyConfig.Save;
  
//create your config to Windows Registry
//Add Quick.Config.Registry to your uses
MyConfig := TMyConfig.Create;
//Define Registry as HKEY_CURRENT_USER\Software\MyApp
MyConfig.HRoot := HKEY_CURRENT_USER; 
MyConfig.MainKey := 'MyApp';
MyConfig.Name := 'John';
MyConfig.Surname := 'Smith';
//load
MyConfig.Load;
//save
MyConfig.Save;

//Create a custom Config with no default provider
TMyConfig = class(TAppConfig)
...your properties
end;

MyConfig := TMyConfig.Create(TAppConfigJsonProvider.Create('.\config.json');

Quick.FileMonitor: Monitorizes a file for changes and throws events.

FileMonitor.Filename := '.\myfile.txt';
//check file changes every 2 seconds
FileMonitor.Interval := 2000;
//watch for deleted or modified file events
FileMonitor.Notifies := [mnFileModified, mnFileDeleted)];
FileMonitor.OnFileChange := MyFileChangeFunction;
FileMonitor.Enabled := True;

Quick.JsonUtils: Utils for working with json objects.

//When unit declared in uses, a TObject Helper allows all your objects to be loaded or saved to/from json string
MyObject.FromJson := jsonstring;
MyString := MyObject.ToJson;

//You can clone simple objects with clone function
MyObject1.Clone(MyObject2);

Quick.SMTP: Send email with two code lines.

//Send email
SMTP := TSMTP.Create('mail.domain.com',25,False);
SMTP.SendMail('my@email.com','to@email.com','Email subject','My message body');

//You can define more advanced options
SMTP.SenderName := 'John';
SMTP.From := 'my@email.com';
SMTP.Recipient := 'one@email.com,two@email.com';
SMTP.Subject := 'Email subject';
SMTP.AddBodyFromFile := '.\body.html';
SMTP.CC := 'other@email.com';
SMTP.BCC := 'more@email.com';
SMTP.Attachments.Add('.\notes.txt');
SMTP.SendMail;

Quick.Threads: Thread safe classes.

  • TThreadedQueueCS: Version of TThreadedQueue with Critical Section.
  • TThreadObjectList: Thread safe Object List.
  • TThreadedQueueList: Thread safe Queue List. Autogrow and with Critical Section.
  • TAnonymousThread: Creates anonymous thread defining unchained Execute and OnTerminate methods. Use Execute_Sync and OnTerminate_Sync methods if code needs to update UI.
    • Execute: Specify code to execute on start.
    • Execute_Sync: Like Execute but runs code with syncronized thread method (avoids problems if your code updates UI).
    • OnTerminate: Specify code to execute when task finishes.
    • OnTerminate_Sync: Like OnTerminate but runs code with syncronized thread method (avoids problems if your code updates UI).
    • Start: Starts thread execution.
//simple anonymousthread
TAnonymousThread.Execute(
      procedure
      var
        i : Integer;
      begin
        for i := 0 to 10 do cout('Working %d',[i],etTrace);
        cout('executed thread',etSuccess);
      end)
    .OnTerminate(
      procedure
      begin
        cout('terminated thread',etSuccess);
        cout('PRESS <ENTER> TO EXIT',etInfo);
      end)
    .Start;
  • TRunTask: Launch an autofree single task thread with fault & retry control policies. Params can be passed and created into code.
  • Define code to execute:
    • Execute: Specify Task name, parameters to pass to anonymous method(If OwnedParams=true, task will free params on termination task) and method than will be executed.
    • Execute_Sync: Like Execute but runs code with synchronize thread method (avoids problems if your code updates UI).
    • SetParameter: Defines values or objects needed by your task.
  • Define events to control:
    • OnInitialize: Specify code to run before main execute task (this code only runs one time, OnExecute can be retried more than one time)
    • OnRetry: Specify code to run when execution fails and decide if needs to retry or cancel next retries.
    • OnTerminate: Specify code to execute when task finishes.
    • OnTerminate_Sync: Like OnTerminate but runs code with syncronized thread method (avoids problems if your code updates UI).
    • OnException: Specify code to execute when task generates an exception.
  • Define fail/retry policies:
    • RetryForever: If execution fails, code will be retry forever until task executes ok.
    • Retry: If execution fails, code will be retry x times.
    • WaitAndRetry: If execution fails, code will be retry x times, and wait x millisecons before each retry. You can specify number of retries and wait time between retries.
    • Run: Starts task execution.
  TRunTask.Execute(
      procedure(task : ITask)
      var
        stream : TStringStream;
        response : IHttpRequestResponse;
      begin
        stream := TStringStream.Create;
        try
          response := TJsonHttpClient(task['httpclient'].AsObject).Get(task['url']);
          task.Result := response.StatusCode;
          if response.StatusCode <> 200 then raise Exception.Create(response.StatusText);
        finally
          stream.Free;
        end;
      end)
    .SetParameter('httpclient',(TJsonHttpClient.Create),True)
    .SetParameter('url','https://mydomain.com/testfile')
    .WaitAndRetry(5,250,2)
    .OnRetry(
      procedure(task : ITask; aException : Exception; var vStopRetries : Boolean)
      begin
        //if error 404 don't try to retry request
        if task.Result = 404 then vStopRetries := True;
      end)
    .OnException(
      procedure(task : ITask; aException : Exception)
      begin
        coutFmt('Exception downloading (Error: %s / StatusCode: %d)...',[aException.Message,task.Result.AsInteger],etError);
      end)
    .OnTerminated(
      procedure(task : ITask)
      begin
        if task.Done then coutFmt('Download "%s" finished ok',[task['url'].AsString],etSuccess)
          else coutFmt('Download "%s" failed after %d retries',[task['url'].AsString,task.NumRetries],etError);
      end)
    .Run;
  • TBackgroundsTasks: Launch tasks in background allowing number of concurrent workers with fault and retry control policies. Use AddTask_Sync and OnTerminate_Sync methods if code needs to update UI.
  • Add a task to execute:
    • AddTask: Specify Task name, parameters to pass to anonymous method(If OwnedParams=true, task will free params on expiration task) and method than will be executed.
    • AddTask_Sync: Like AddTask but runs code with synchronize thread method (avoids problems if your code updates UI).
    • SetParameter: Defines values or objects needed by your task. Every parameter will be accesible into anomymous methods defines as task[] or task.[index]
  • Define events to control:
    • OnInitialize: Specify code to run before main execute task (this code only runs one time, OnExecute can be retried more than one time)
    • OnRetry: Specify code to run when execution fails and decide if needs to retry or cancel next retries.
    • OnTerminate: Specify code to execute when task finishes.
    • *OnTerminate_Sync: Like OnTerminate but runs code with syncronized thread method (avoids problems if your code updates UI).
    • OnException: Specify code to execute when task generates an exception.
  • Define fail/retry policies:
    • RetryForever: If execution fails, code will be retry forever until task executes ok.
    • Retry: If execution fails, code will be retry x times. Allow define array of milliseconds as wait time.
    • WaitAndRetry: If execution fails, code will be retry x times, and wait x millisecons before each retry. You can specify number of retries and wait time between retries.
  • Begin execution:
    • Start: Starts tasks execution.
    backgroundtasks := TBackgroundTasks.Create(10);
    for i := 1 to 100 do
    begin
      mytask := TMyTask.Create;
      mytask.Id := i;
      mytask.Name := 'Task' + i.ToString;
      backgroundtasks.AddTask([mytask],False,
                              procedure(task : ITask)
                              begin
                                cout('task %d started',[TMyTask(task.Param[0].AsObject).Id],etDebug);
                                TMyTask(task.Param[0].AsObject).DoJob;
                              end
							).WaitAndRetry([250,2000,10000])
                            ).OnException(
                              procedure(task : ITask; aException : Exception)
                              begin
                                cout('task %d failed (%s)',[TMyTask(task.Param[0].AsObject).Id,aException.Message],etError);
                              end
                            ).OnTerminated(
                              procedure(task : ITask)
                              begin
                                cout('task %d finished',[TMyTask(task.Param[0].AsObject).Id],etDebug);
                                TMyTask(task.Param[0].AsObject).Free;
                              end
                            ).Run;
    end;
    backgroundtasks.Start;
  • TScheduledTasks: Alternative to Timer. You can assign tasks with start time, repeat options and expiration date and fail and retry control policies. Use AddTask_Sync, OnTerminate_Sync and OnExpired_Sync if code needs to update UI. You can assign anonymous methods to execute, exception, terminate and expiration events.
  • Add a task to execute:
    • AddTask: Specify Task name, parameters to pass to anonymous method(If OwnedParams=true, task will free params on expiration task) and method than will be executed.
    • AddTask_Sync: Like AddTask but runs code with synchronize thread method (avoids problems if your code updates UI).
    • SetParameter: Defines values or objects needed by your task. Every parameter will be accesible into anomymous methods defines as task[] or task.[index]
  • Define events to control:
    • OnInitialize: Specify code to run before main execute task (this code only runs one time, OnExecute can be retried more than one time)
    • OnRetry: Specify code to run when execution fails and decide if needs to retry or cancel next retries.
    • OnTerminate: Specify code to execute when task finishes.
    • OnTerminate_Sync: Like OnTerminate but runs code with syncronized thread method (avoids problems if your code updates UI).
    • OnExpire: Specify code to execute when task expiration reached or task was cancelled.
    • OnExpire_Sync: Like OnExpire but runs code with synchronized thread method (avoids problems if your code updates UI).
    • OnException: Specify code to execute when task generates an exception.
  • Define when to start task:
    • StartNow: Start task immediately.
    • StartAt: Date and time to start task.
    • StartTodayAt: Start task today at defined time.
    • StartTomorrowAt: Start task tomorrow at defined time.
    • StartOnDayChange: Start task when day changes.
    • StartInMinutes: Start task after x minutes.
    • StartInSeconds: Start task after x seconds.
  • Define if needs to repeat or not (if not defined a previous StartAt, StartOn, etc, task will be executed immediately):
    • RunOnce: Task will be executed one time only.
    • RepeatEvery: Can indicate repeat step over time and expiration date.
    • RepeatEveryDay: Repeat task every day at same hour.
    • RepeatEveryWeek: Repeat task every week at same hour.
  • Define fail/retry policies:
    • RetryForever: If execution fails, code will be retry forever until task executes ok.
    • Retry: If execution fails, code will be retry x times.
    • WaitAndRetry: If execution fails, code will be retry x times, and wait x millisecons before each retry. You can specify number of retries and wait time between retries.
  • Start/Stop scheduler:
    • Start: Starts scheduler.
    • Stop: Stops scheduler.
myjob := TMyJob.Create;
myjob.Name := Format('Run at %s and repeat every 1 second until %s',[DateTimeToStr(ScheduledDate),DateTimeToStr(ExpirationDate)]);
scheduledtasks.AddTask('Task1',[myjob],True,
                            procedure(task : ITask)
                            begin
                              cout('task "%s" started',[TMyTask(task.Param[0]).Name],etDebug);
                              TMyJob(task.Param[0]).DoJob;
                            end
                          ).OnException(
                            procedure(task : ITask; aException : Exception)
                            begin
                              cout('task "%s" failed (%s)',[TMyJob(task.Param[0]).Name,aException.Message],etError);
                            end
                          ).OnTerminated(
                            procedure(task : ITask)
                            begin
                              cout('task "%s" finished',[TMyJob(task.Param[0]).Name],etDebug);
                            end
                          ).OnExpired(
                            procedure(task : ITask)
                            begin
                              cout('task "%s" expired',[TMyJob(task.Param[0]).Name],etWarning);
                            end
                          ).StartAt(ScheduledDate
                          ).RepeatEvery(1,TTimeMeasure.tmSeconds,ExpirationDate);
scheduledtasks.Start;
  • ITask: Interface passed to every task event of TRunTask, TBackgroundTasks and TScheduledTasks.
    • NumWorker: Return number of worker assigned to execute task.
    • Result: Can store any value type (TFlexValue is like variant type)
    • Param[name]: Can store parameters passed to task or created dynamically into every anonymous methods passed to each event.
    • Param[index]: Can store parameters passed to task or created dynamically into every anonymous methods passed to each event.
    • Done: Return true is task is executed without errors.
    • Failed: Return true is task has failed.
    • IdTask: Task id defined.
    • NumRetries: Number of retries done.
    • MaxRetries: Number of maximum retries allowed before mark task as failed.
    • LastException: Return last exception of a failed task.
    • CircuitBreaked: Return true if max retries has been reached or user cancelled into OnRetry event.
    • IsEnabled: Return status of task.

Quick.FaultControl: Manages fail and retry policies, defining max retries, wait time beetween retries and circuit break mecanism.

Quick.Process: Manages windows processes.

//kill explorer process
KillProcess('explorer.exe');
//determine if an application is running
if IsProcessRunning('explorer.exe') then Showmessage('Explorer is running!');
//get username who is running an exe
writeln('Explorer.exe open by: ' + GetProcessUser('explorer.exe');
//gets handle of a window with a 20 seconds timeout
if FindWindowTimeout('MainWindow',20) then writeln('Window detected');

Quick.Services: Manages windows services.

//detect if a service is installed
if not ServiceIsPresent('localhost','MySvc') then raise Exception.Create('Service not installed!');
//Start a service
ServiceStart('localhost','MySvc');
//Uninstall a service
ServiceUninstall('MySvc');

Quick.Format: String format.

//Format bytes to MB, GB, TB...
FormatBytes(50000) //shows 50KB
FormatBytes(90000000) //shows 90MB

Quick.JsonSerializer: Serializes an object from/to json text. You can define if public or published will be processed (only Delphi, fpc rtti only supports published properties)

json := '{"name":"Peter","age":30}';
serializer := TJsonSerializer.Create(TSerializeLevel.slPublishedProperty);
try
   serializer.JsonToObject(user,json);
finally
   serializer.Free;
end;

Quick.AutoMapper: Map fields from one class to another class. Allows custom mappings to match different fields and custom mapping procedure to cast/convert fields manually.

//Map values from User1 to User2
TMapper<TUser2>.Map(User);

//Map custom mappings
AutoMapper := TAutoMapper<TUser,TUser2>.Create;

//option1: you can define auto map different named properties
AutoMapper.CustomMapping.AddMap('Cash','Money');
AutoMapper.CustomMapping.AddMap('Id','IdUser');

//option2: you can decide to modify each property manually or allow to auto someones
AutoMapper.OnDoMapping := procedure(const aSrcObj : TUser; const aTargetName : string; out Value : TFlexValue)
                          begin
                            if aTargetName = 'Money' then Value := aSrcObj.Cash * 2
                              else if aTargetName = 'IdUser' then Value := aSrcObj.Id;
                          end;

//option3: you can modify some properties after automapping done
AutoMapper.OnAfterMapping := procedure(const aSrcObj : TUser; aTgtObj : TUser2)
                             begin
                               aTgtObj.Money := aSrcObj.Cash * 2;
                               aTgtObj.IdUser := aSrcObj.Id;
                             end;

User2 := AutoMapper.Map(User);

Quick.JsonRecord: Used as a DTO class, with json serialize and mapping functions included.

type
   TUser = class(TJsonRecord)
   private
      fName : string;
      fAge : Integer;
   published
      property Name : string read fName write fName;
      property Age : Integer read fAge write fAge;
   end;
var
   user, user2 : TUser;
begin
   user := TUser.Create;
   //show as json string
   Writeln(user.ToJson);
   //mapping to other class
   user.Mapto(User2);
   Writeln(user2.ToJson);
   //load from file
   user.LoadFromFile('.\user.json');
   //save to file
   user2.SaveToFile('.\user2.json');
end;

Quick.Lists: Improved lists with indexing or search features.

  • TIndexedObjectList: Allows fast hashed searches by object properties or fields.
  • TSearchObjectList: Allows iteration search by object properties or fields.
var
   users : TIndexedObjectList<TUser>;
begin
   users := TIndexedObjectList<TUser>.Create(True);
   //create index by property "Name"
   users.Indexes.Add('Name','Name',TClassField.cfProperty);
   //create index by private field "Id"
   users.Indexes.Add('Id','fId',TClassField.cfField);
   //get user by "Name" index
   writeln(users.Get('Name','Peter').SurName);
end;

Quick.Value FlexValue stores any data type and allow pass to other class with integrated operators and autofrees.

var
  value : TFlexValue;
  str : string;
  num : Integer; 
begin
  value := 'hello';
  str := value;
  value := 123;
  num := value;
end;

Quick.Arrays: Improved arrays.

  • TXArray: Array with methods like TList.
var
   users : TXArray<TUser>;
begin
   users.Add(User);
   if users.Count:= TIndexedObjectList<TUser>.Create(True);
   //create index by property "Name"
   users.Indexes.Add('Name','Name',TClassField.cfProperty);
   //create index by private field "Id"
   users.Indexes.Add('Id','fId',TClassField.cfField);
   //get user by "Name" index
   writeln(users.Get('Name','Peter').SurName);
end;
  • TFlexArray: Array with methods like TList than can storage different value types into same array.
var
  flexarray : TFlexArray;
begin
    flexarray.Add(10);
    flexarray.Add('Hello');
    user := TUser.Create;
    try
      user.Name := 'Joe';
      flexarray.Add(user);

      cout('Integer Item = %d',[flexarray[0].AsInteger],etInfo);
      cout('String Item = %s',[flexarray[1].AsString],etInfo);
      cout('Record Item = %s',[TUser(flexarray[2]).Name],etInfo);
    finally
      user.Free;
    end;
end;
  • TFlexPairArray: Array with methods like TList than can store different value types into same array, and search by item name.
var
  flexarray : TFlexPairArray;
begin
    flexarray.Add('onenumber',10);
    flexarray.Add('other','Hello boy!');
    user := TUser.Create;
    try
      user.Name := 'Joe';
      flexarray.Add('myuser',user);

      cout('Integer Item = %d',[flexarray.GetValue('onenumber').AsInteger],etInfo);
      cout('String Item = %s',[flexarray.GetValue('other').AsString],etInfo);
      cout('Record Item = %s',[TUser(flexarray.GetValue('myuser')).Name],etInfo);
    finally
      user.Free;
    end;
end;

Quick.YAML: Yaml object structure.

  • TYamlObject: A Yaml object is and array of YamlValue pairs.
  //create Yaml object from yaml text
  yamlobj.ParseYamlValue(aYaml)
  //add a pair
  yamlobj.AddPair('Name','Mike');
  //display as yaml structure
  Writeln(yamlobj.ToYaml);
  • TYamlArray: Array of objects or scalars.
  yamlarray.AddElement(TYamlPair.Create('Age',30));
  yamlobj.AddPair('myarray',yamlarray);
  • TYamlPair: Name-Value pair. Value can be object, array or scalar.
  n := yamlobj.GetPair('Name').Value as TYamlInteger;

Quick.YAML.Serializer: Serialize/Deserialize object from/to Yaml.

  //Serialize
  text := YamlSerializer.ObjectToYaml(obj);
  //Deserialize
  YamlSerializer.YamlToObject(obj,yamltext);

Quick.Expression: Evaluate object properties using expressions.

  if TExpressionParser.Validate(user,('(Age > 30) AND (Dept.Name = "Financial")') then
  begin
    //do something
  end;

Quick.Linq: Makes Linq queries to any TObjectList, TList, TArray and TXArray, performing Select by complex Where like SQL syntax, update and order over your list.

  • From: Array, XArray or TObjectList to use.
  • Where: Expression to search. You can use a dots to define property path.
  • SelectAll: Returns an array of objects matching where clause
  • SelectTop: Returns top x objects matching where clause.
  • SelectFirst: Returns first object matching where clause.
  • SelectLast: Returns last object matching where clause.
  • OrderBy: Define order of returned list.
  • Update: Update fields of matching where clause.
  • Delete: Delete objectes matching where clause.
  • Count: Return number of elements matching where clause.
  //Select multi conditional
  for user in TLinq<TUser>.From(userslist).Where('(Name = ?) OR (SurName = ?) OR (SurName = ?)',['Peter','Smith','Huan']).Select do
  begin
    //do something
  end;
  
  //Select like and update field
  TLinq<TUser>.From(userlist).Where('SurName Like ?',['%son']).SelectFirst.Name := 'Robert';
  
  //Select top and Order by field
  for user in TLinq<TUser>.From(userlist).Where('Age > ?',[18]).SelectTop(10).OrderBy('Name') do
  begin
    //do something
  end;
  
  //update fields by conditional
  TLinq<TUser>.From(userlist).Where('Name = ?',['Peter']).Update(['Name'],['Joe']);
  
  //count results
  numusers := TLinq<TUser>.From(userlist).Where('(Age > ?) AND (Age < ?)',[30,40]).Count;