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XSuperObject.pas
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(*
* XSuperObject - Simple JSON Framework
*
* The MIT License (MIT)
* Copyright (c) 2015 Onur YILDIZ
*
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify,
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall
* be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
* THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*)
unit XSuperObject;
interface
{$I XSuperObject.inc}
uses
Classes,
Variants,
SysUtils,
Character,
XSuperJSON,
RTTI,
TypInfo,
Generics.Collections
{$IFDEF SP_DATASET}
,DB
{$ENDIF}
{$IFDEF SP_STREAM}
,IdGlobal
,IdCoderMIME
{$ENDIF}
;
{$IFDEF XE2UP}
const CharIndex = Low(String);
{$ELSE}
const CharIndex = 1;
{$ENDIF}
type
SOException = class(Exception) end;
SOInvalidDate = class(SOException) end;
ESerializeError = class(Exception) end;
ISuperObject = interface;
ISuperArray = interface;
ICast = Interface;
IMember = ICast;
TSuperObject = class;
TSuperArray = class;
TMemberStatus = (jUnAssigned, jNull, jAssigned);
TJSONType = (jtObject, jtArray);
Alias = class(TCustomAttribute)
private
FName: String;
public
constructor Create(const AName: String);
property Name: String read FName write FName;
end;
TRevalOption = (roNone, roEmptyArrayToNull);
REVAL = class(TCustomAttribute)
private
FOption: TRevalOption;
FEqual: Variant;
FValue: Variant;
public
constructor Create(EQVal: String; NewVal: String); overload;
constructor Create(EQVal: Integer; NewVal: Integer); overload;
constructor Create(EQVal: Boolean; NewVal: Boolean); overload;
constructor Create(EQVal: Double; NewVal: Double); overload;
constructor Create(EQVal: String); overload;
constructor Create(EQVal: Integer); overload;
constructor Create(EQVal: Double); overload;
constructor Create(EQVal: Boolean); overload;
constructor Create(Option: TRevalOption); overload;
function CheckEQ(Val: TValue): Boolean;
property Equal: Variant read FEqual;
property Value: Variant read FValue;
property Option: TRevalOption read FOption;
end;
DISABLE = class(TCustomAttribute)
end;
DISABLEREAD = class(TCustomAttribute)
end;
DISABLEWRITE = class(TCustomAttribute)
end;
IBase = interface
['{872FA14E-9276-4F86-A8D8-832CF39DACE6}']
function AsObject: ISuperObject;
function AsArray: ISuperArray;
end;
TBase = class(TInterfacedObject, IBase)
function AsObject: ISuperObject; virtual;
function AsArray: ISuperArray; virtual;
end;
IBaseJSON<T, Typ> = interface(IBase)
['{EBD49266-BEF2-4B79-9BAF-329F725E0568}']
function GetBoolean(V: Typ): Boolean;
function GetInteger(V: Typ): Int64;
function GetString(V: Typ): String;
procedure SetBoolean(V: Typ; const Value: Boolean);
procedure SetInteger(V: Typ; const Value: Int64);
procedure SetString(V: Typ; const Value: String);
function GetObject(V: Typ): ISuperObject;
procedure SetObject(V: Typ; const Value: ISuperObject);
function GetArray(V: Typ): ISuperArray;
procedure SetArray(V: Typ; const Value: ISuperArray);
function GetDouble(V: Typ): Double;
procedure SetDouble(V: Typ; const Value: Double);
function GetVariant(V: Typ): Variant;
procedure SetVariant(V: Typ; const Value: Variant);
function GetDateTime(V: Typ): TDateTime;
procedure SetDateTime(V: Typ; const Value: TDateTime);
function GetDate(V: Typ): TDate;
procedure SetDate(V: Typ; const Value: TDate);
function GetTime(V: Typ): TTime;
procedure SetTime(V: Typ; const Value: TTime);
function GetSelf: T;
function GetAncestor(V: Typ): IJSONAncestor;
function GetNull(V: Typ): TMemberStatus;
procedure SetNull(V: Typ; const Value: TMemberStatus);
function GetDataType: TDataType;
property Null[V: Typ]: TMemberStatus read GetNull write SetNull;
property S[V: Typ]: String read GetString write SetString;
property I[V: Typ]: Int64 read GetInteger write SetInteger;
property B[V: Typ]: Boolean read GetBoolean write SetBoolean;
property F[V: Typ]: Double read GetDouble write SetDouble;
property O[V: Typ]: ISuperObject read GetObject write SetObject;
property A[V: Typ]: ISuperArray read GetArray write SetArray;
property V[V: Typ]: Variant read GetVariant write SetVariant;
property D[V: Typ]: TDateTime read GetDateTime write SetDateTime;
property Date[V: Typ]: TDate read GetDate write SetDate;
property Time[V: Typ]: TTime read GetTime write SetTime;
property Ancestor[V: Typ]: IJSONAncestor read GetAncestor;
function Contains(Key: Typ): Boolean;
function GetType(Key: Typ): TVarType;
procedure Sort(Comparison: TJSONComparison<IMember>);
procedure SaveTo(Stream: TStream; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload;
procedure SaveTo(AFile: String; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload;
function AsJSON(const Ident: Boolean = False; const UniversalTime: Boolean = False): String;
property Self: T read GetSelf;
property DataType: TDataType read GetDataType;
end;
TJSONValueHelper = class helper for TJSONAncestor
public
function ValueEx<T>: Variant;
end;
TCondCallBack<T> = reference to function(Arg: T): Boolean;
TBaseJSON<T, Typ> = class(TBase, IBaseJSON<T, Typ>)
protected
FJSONObj: T;
FCasted: IJSONAncestor;
FInterface: IInterface;
FCheckDate: Boolean;
function ContainsEx(Key: Typ; out Value: IJSONAncestor): Boolean;
function DefaultValueClass<TT: Class>(const Value): TT;
procedure Member<MT: Class; TValue>(const Name: Typ; const Value: TValue); overload;
function Member(const Name: Typ): Boolean; overload;
function GetValue<C: Class>(const Name: Typ): C;
function GetSelf: T;
function GetData(Key: Typ): IJSONAncestor;
function GetVariant(V: Typ): Variant;
procedure SetVariant(V: Typ; const Value: Variant);
function GetDataType: TDataType;
protected
function GetObject(V: Typ): ISuperObject; virtual;
function GetArray(V: Typ): ISuperArray; virtual;
function GetBoolean(V: Typ): Boolean; virtual;
function GetInteger(V: Typ): Int64; virtual;
function GetString(V: Typ): String; virtual;
function GetDouble(V: Typ): Double; virtual;
function GetAncestor(V: Typ): IJSONAncestor; inline;
function GetNull(V: Typ): TMemberStatus; virtual;
function GetDateTime(V: Typ): TDateTime; virtual;
function GetDate(V: Typ): TDate; virtual;
function GetTime(V: Typ): TTime; virtual;
procedure SetDate(V: Typ; const Value: TDate); virtual;
procedure SetTime(V: Typ; const Value: TTime); virtual;
procedure SetDateTime(V: Typ; const Value: TDateTime); virtual;
procedure SetObject(V: Typ; const Value: ISuperObject); virtual;
procedure SetArray(V: Typ; const Value: ISuperArray); virtual;
procedure SetBoolean(V: Typ; const Value: Boolean); virtual;
procedure SetInteger(V: Typ; const Value: Int64); virtual;
procedure SetString(V: Typ; const Value: String); virtual;
procedure SetDouble(V: Typ; const Value: Double); virtual;
procedure SetNull(V: Typ; const Value: TMemberStatus); virtual;
public
constructor Create(JSON: String = '{}'; const CheckDate: Boolean = True); overload;
constructor Create(JSON: T; const CheckDate: Boolean = True); overload;
constructor CreateCasted(Value: IJSONAncestor; const CheckDate: Boolean = True);
constructor CreateWithEscape(JSON: String = '{}'; const CheckDate: Boolean = True; DummyPar : integer = 0);
destructor Destroy; override;
property Null[V: Typ]: TMemberStatus read GetNull write SetNull;
property S[V: Typ]: String read GetString write SetString;
property I[V: Typ]: Int64 read GetInteger write SetInteger;
property B[V: Typ]: Boolean read GetBoolean write SetBoolean;
property F[V: Typ]: Double read GetDouble write SetDouble;
property O[V: Typ]: ISuperObject read GetObject write SetObject;
property A[V: Typ]: ISuperArray read GetArray write SetArray;
property V[V: Typ]: Variant read GetVariant write SetVariant;
property D[V: Typ]: TDateTime read GetDateTime write SetDateTime;
property Date[V: Typ]: TDate read GetDate write SetDate;
property Time[V: Typ]: TTime read GetTime write SetTime;
property Ancestor[V: Typ]: IJSONAncestor read GetAncestor;
function Contains(Key: Typ): Boolean;
function GetType(Key: Typ): TVarType;
procedure Sort(Comparison: TJSONComparison<IMember>); virtual; abstract;
procedure SaveTo(Stream: TStream; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload; virtual; abstract;
procedure SaveTo(AFile: String; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload; virtual; abstract;
function AsJSON(const Ident: Boolean = False; const UniversalTime: Boolean = False): String; inline;
property Self: T read GetSelf;
property DataType: TDataType read GetDataType;
end;
ICast = interface
['{0F5387AB-C1C9-4229-921D-226960332271}']
function GetArray: ISuperArray;
function GetBoolean: Boolean;
function GetDataType: TDataType;
function GetFloat: Double;
function GetInteger: Int64;
function GetObject: ISuperObject;
function GetString: String;
function GetName: String;
function GetVariant: Variant;
function GetDate: TDate;
function GetDateTime: TDateTime;
function GetTime: TTime;
procedure SetDate(const Value: TDate);
procedure SetDateTime(const Value: TDateTime);
procedure SetTime(const Value: TTime);
procedure SetBoolean(const Value: Boolean);
procedure SetFloat(const Value: Double);
procedure SetInteger(const Value: Int64);
procedure SetString(const Value: String);
procedure SetVariant(const Value: Variant);
property AsObject: ISuperObject read GetObject;
property AsArray: ISuperArray read GetArray;
property AsString: String read GetString write SetString;
property AsInteger: Int64 read GetInteger write SetInteger;
property AsFloat: Double read GetFloat write SetFloat;
property AsBoolean: Boolean read GetBoolean write SetBoolean;
property AsVariant: Variant read GetVariant write SetVariant;
property AsDateTime: TDateTime read GetDateTime write SetDateTime;
property AsDate: TDate read GetDate write SetDate;
property AsTime: TTime read GetTime write SetTime;
property DataType: TDataType read GetDataType;
property Name: String read GetName;
function ToString(const Ident: Boolean = False; const UniversalTime: Boolean = False): String;
end;
TCast = class(TInterfacedObject, ICast)
private
FJSON: IJSONAncestor;
FName: String;
function GetArray: ISuperArray;
function GetBoolean: Boolean;
function GetDataType: TDataType;
function GetFloat: Double;
function GetInteger: Int64;
function GetObject: ISuperObject;
function GetString: String;
procedure SetBoolean(const Value: Boolean);
procedure SetFloat(const Value: Double);
procedure SetInteger(const Value: Int64);
procedure SetString(const Value: String);
function GetName: String;
function GetVariant: Variant;
procedure SetVariant(const Value: Variant);
function GetDate: TDate;
function GetDateTime: TDateTime;
function GetTime: TTime;
procedure SetDate(const Value: TDate);
procedure SetDateTime(const Value: TDateTime);
procedure SetTime(const Value: TTime);
public
constructor Create(Base: IJSONAncestor); overload;
constructor Create(Base: IJSONPair); overload;
class function CreateFrom<T>(Base: T): ICast;
destructor Destroy; override;
property AsObject: ISuperObject read GetObject;
property AsArray: ISuperArray read GetArray;
property AsString: String read GetString write SetString;
property AsInteger: Int64 read GetInteger write SetInteger;
property AsFloat: Double read GetFloat write SetFloat;
property AsBoolean: Boolean read GetBoolean write SetBoolean;
property AsVariant: Variant read GetVariant write SetVariant;
property AsDateTime: TDateTime read GetDateTime write SetDateTime;
property AsDate: TDate read GetDate write SetDate;
property AsTime: TTime read GetTime write SetTime;
property DataType: TDataType read GetDataType;
property Name: String read GetName;
function ToString(const Ident: Boolean = False; const UniversalTime: Boolean = False): String; reintroduce;
end;
ISuperExpression = interface(ICast)
['{58366F15-0D83-4BC5-85D5-238E78E73247}']
end;
TSuperExpression = class(TCast, ISuperExpression)
private
FInterpreter: TJSONInterpreter;
public
constructor Create(Base: IJSONAncestor; const Expr: String; const BlockException: Boolean = False);
destructor Destroy; override;
end;
TSuperEnumerator<T> = record
Index : Integer;
List : TJSONEnumerator<T>;
function MoveNext : Boolean;
function GetCurrent : ICast;
property Current : ICast read GetCurrent;
end;
ISuperObject = interface(IBaseJSON<IJSONObject, String>)
['{B7E271F3-205B-4172-8532-BE03F2A6EDE7}']
procedure First;
procedure Next;
function GetEoF: Boolean;
function GetCount: Integer;
function GetCurrentKey: String;
function GetCurrentValue: IJSONAncestor;
function GetOffset: Integer;
function GetExpr(const Code: String): ISuperExpression;
function GetRaw(V: String): String;
procedure SetRaw(V: String; Value: String);
procedure Add(const Key: String; const Data: IJSONAncestor);
procedure SetData(V: String; Data: Variant); overload;
procedure SetData(V: String; Data: Variant; AFormatSettings: TFormatSettings); overload;
procedure Remove(Key: String);
function Check(const Expr: String): Boolean;
property Expression[const Code: String]: ISuperExpression read GetExpr; default;
property Count: Integer read GetCount;
property EoF: Boolean read GetEoF;
property CurrentKey: String read GetCurrentKey;
property CurrentValue: IJSONAncestor read GetCurrentValue;
property Offset: Integer read GetOffset;
function Clone: ISuperObject;
function GetEnumerator: TSuperEnumerator<IJSONPair>;
function T: TSuperObject;
function Where(const Cond: TCondCallBack<IMember>): ISuperObject;
function Delete(const Cond: TCondCallBack<IMember>): ISuperObject;
function Cast: ICast;
property Raw[V: String]: String read GetRaw write SetRaw;
end;
TSuperObject = class(TBaseJSON<IJSONObject, String>, ISuperObject)
private
FOffset: Integer;
function GetEoF: Boolean;
function GetCount: Integer;
function GetCurrentKey: String;
function GetCurrentValue: IJSONAncestor;
function GetOffset: Integer;
function GetExpr(const Code: String): ISuperExpression;
function GetRaw(V: String): String;
procedure SetRaw(V: String; Value: String);
protected
function GetString(V: String): String; override;
procedure SetNull(V: String; const Value: TMemberStatus); override;
public
procedure First;
procedure Next;
procedure Add(const Key: String; const Data: IJSONAncestor);
procedure SetData(V: String; Data: Variant); overload; inline;
procedure SetData(V: String; Data: Variant; AFormatSettings: TFormatSettings); overload;
class function ParseStream(Stream: TStream; CheckDate: Boolean = True): TSuperObject;
class function ParseFile(FileName: String; CheckDate: Boolean = True): TSuperObject;
procedure SaveTo(Stream: TStream; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload; override;
procedure SaveTo(AFile: String; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload; override;
procedure Remove(Key: String);
function Check(const Expr: String): Boolean;
property Expression[const Code: String]: ISuperExpression read GetExpr; default;
property Count: Integer read GetCount;
property Offset: Integer read GetOffset;
property EoF: Boolean read GetEoF;
property CurrentKey: String read GetCurrentKey;
property CurrentValue: IJSONAncestor read GetCurrentValue;
function GetEnumerator: TSuperEnumerator<IJSONPair>;
function AsType<T>: T;
function T: TSuperObject; inline;
function Clone: ISuperObject;
function AsObject: ISuperObject; override;
function AsArray: ISuperArray; override;
procedure Sort(Comparison: TJSONComparison<IMember>); override;
function Where(const Cond: TCondCallBack<IMember>): ISuperObject;
function Delete(const Cond: TCondCallBack<IMember>): ISuperObject;
function Cast: ICast;
end;
ISuperArray = interface(IBaseJSON<IJSONArray, Integer>)
['{41A2D578-CFAB-4924-8F15-0D0227F35412}']
function GetLength: Integer;
property Length: Integer read GetLength;
procedure Add(Value: IJSONAncestor); overload;
procedure Add(Value: ISuperArray); overload;
procedure Add(Value: ISuperObject); overload;
procedure Add(Value: Variant; DateFormat: TFormatSettings); overload;
procedure Add(Value: Variant); overload;
procedure Delete(Index: Integer); overload;
procedure Clear;
function Clone: ISuperArray;
function GetEnumerator: TSuperEnumerator<IJSONAncestor>;
function T: TSuperArray;
function Where(const Cond: TCondCallBack<IMember>): ISuperArray;
function Delete(const Cond: TCondCallBack<IMember>): ISuperArray; overload;
end;
TSuperArray = class(TBaseJSON<IJSONArray, Integer>, ISuperArray)
private
function GetLength: Integer;
protected
procedure SetNull(V: Integer; const aValue: TMemberStatus); override;
public
procedure Add(Value: IJSONAncestor); overload;
procedure Add(Value: ISuperObject); overload;
procedure Add(Value: ISuperArray); overload;
procedure Add(Value: Variant; DateFormat: TFormatSettings); overload;
procedure Add(Value: Variant); overload;
procedure Delete(Index: Integer); overload;
function Delete(const Cond: TCondCallBack<IMember>): ISuperArray; overload;
procedure Clear;
property Length: Integer read GetLength;
function GetEnumerator: TSuperEnumerator<IJSONAncestor>;
procedure SaveTo(Stream: TStream; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload; override;
procedure SaveTo(AFile: String; const Ident: Boolean = false; const UniversalTime : Boolean = false); overload; override;
procedure Sort(Comparison: TJSONComparison<IMember>); override;
function Clone: ISuperArray;
function AsArray: ISuperArray; override;
function AsObject: ISuperObject; override;
function Where(const Cond: TCondCallBack<IMember>): ISuperArray;
function T: TSuperArray; inline;
function AsType<T>: T;
end;
TSuperProperty = class(TRttiProperty)
public
ArrayRawData: Pointer;
end;
TSuperField = class(TRttiField)
public
ArrayRawData: Pointer;
end;
TSuperDynArr = class(TRttiDynamicArrayType)
public
ArrayRawData: Pointer;
end;
TSuperArr = class(TRttiArrayType)
public
ArrayRawData: Pointer;
end;
TGenericsType = (gtNil, gtList, gtObjectList);
TGenericsInfo = class
private
FContext: TRttiContext;
FType: TRttiType;
FAddMethod: TRttiMethod;
FCountProperty: TRttiProperty;
FGetItemMethod: TRttiIndexedProperty;
public
IsGeneric: Boolean;
Typ: TRttiType;
CreateArgs: TArray<TValue>;
procedure AddVal(Instance: TObject; Val: TValue);
function Count(Instance: TObject): Integer;
function Item(Instance: TObject; const Index: Integer): TObject;
constructor Create(GenericClass: TClass; const AIsGeneric: Boolean; AType: TRttiType);
destructor Destroy; override;
end;
TAttributeClass = class of TCustomAttribute;
TPropertyGetterType = (pgtField, pgtMethod);
TSerializeParse = class
private
class var FGenericsCache: TObjectDictionary<TClass, TGenericsInfo>;
class function GetAttribute(AttributeType: TAttributeClass; Attributes: TArray<TCustomAttribute>): TCustomAttribute;
class procedure GetAliasName(const Attributes: TArray<TCustomAttribute>; var Result: String);
class function GetREVAL(const Attributues: TArray<TCustomAttribute>): REVAL;
class function IsDisabled(const Attributes: TArray<TCustomAttribute>): Boolean; inline;
class function IsDisabledRead(const Attributes: TArray<TCustomAttribute>): Boolean; inline;
class function IsDisabledWrite(const Attributes: TArray<TCustomAttribute>): Boolean; inline;
class function PropGetterType(Prop: TRttiProperty): TPropertyGetterType;
public
class constructor Create;
class destructor Destroy;
class function IsGenerics(Cls: TRttiType): Boolean; overload;
class function IsGenerics(Cls: TClass): Boolean; overload;
class function IsCollection(Cls: TRttiType): Boolean; overload;
class function IsCollection(Cls: TClass): Boolean; overload; inline;
class function GetGenericType(Cls: TClass): TGenericsType;
class function GetGenericsCreateArgs(Cls: TRttiType): TArray<TValue>;
// ** Read
{$IFDEF SP_STREAM}
class procedure ReadStream(AStream: TStream; IResult: IJSONAncestor);
{$ENDIF}
class procedure ReadGeneric(AObject: TObject; IResult: ISuperArray);
class procedure ReadCollection(ACollection: TCollection; IResult: ISuperArray);
class procedure ReadObject(AObject: TObject; IResult: ISuperObject);
class procedure ReadRecord(Info: PTypeInfo; ARecord: Pointer; IResult: ISuperObject);
class function ReadRecordEx<T>(Rec: T): ISuperObject;
class procedure ReadMembers(Data: Pointer; aType: TRttiType; IJsonData: ISuperObject);
class procedure ReadMember<T, Typ>(Member: Typ; RType: PTypeInfo; MemberValue: TValue; IJsonData: IBaseJSON<T, Typ>);
class procedure ReadSet(Val: TValue; IJsonData: ISuperArray);
class procedure ReadVariantOfArray(Val: Variant; IJsonData: ISuperArray);
class procedure ReadTValueOfArray(Val: TValue; IJsonData: ISuperArray);
class procedure ReadVariantOfObject(Val: Variant; const Name: String; IJsonData: ISuperObject);
// ** Write
{$IFDEF SP_STREAM}
class procedure WriteStream(AStream: TStream; IData: IJSONAncestor);
{$ENDIF}
class procedure WriteGeneric(AObject: TObject; IData: ISuperArray);
class procedure WriteCollection(ACollection: TCollection; IData: ISuperArray);
class procedure WriteObject(AObject: TObject; IData: ISuperObject);
class procedure WriteRecord(Info: PTypeInfo; ARecord: Pointer; IData: ISuperObject);
class procedure WriteRecordEx<T>(Rec: T; IData: ISuperObject);
class procedure WriteMembers(Data: Pointer; aType: TRttiType; IJsonData: ISuperObject);
class procedure WriteMember<T, Typ>(Data: Pointer; Member: Typ; RType: PTypeInfo; MemberValue: TRttiObject; IJsonData: IBaseJSON<T, Typ>);
class procedure WriteSet(Data: Pointer; Member: TRttiObject; IJSONData: ISuperArray);
class procedure SetValue<Typ>(var Data: Pointer; Member: TRttiObject; MIdx: Typ; Val: TValue);
class function GetValue<Typ>(Data: Pointer; Member: TRttiObject; MIdx: Typ): TValue;
class function GetMemberTypeInfo(Member: TRttiObject; const GetArray: Boolean = true): PTypeInfo; inline;
class function GetMemberType(Member: TRttiObject; const GetArray: Boolean = true): TRttiType; //inline;
class function GetArrayRawData(Member: TRttiObject): Pointer;
class procedure SetArrayRawData(Member: TRttiObject; RawData: Pointer);
class procedure ClearArrayRawData(Member: TRttiObject);
class function ObjectConstructorParamCount(Instance: TClass): Integer;
class function ObjectConstructor(Instance: TClass): TObject;
class function CheckObject<Typ>(Data: Pointer; Member: TRttiObject; MIdx: Typ; var Obj: TObject): Boolean;
class property GenericsCache: TObjectDictionary<TClass, TGenericsInfo> read FGenericsCache;
end;
TMemberVisibilities = set of TMemberVisibility;
TSerializeParseOptions = class
private
class var FVisibilities: TMemberVisibilities;
public
class constructor Create;
class property Visibilities: TMemberVisibilities read FVisibilities write FVisibilities;
end;
TSuperObjectHelper = class helper for TObject
public
function AsJSON(const Ident: Boolean = False; const UniversalTime: Boolean = False): String;
function AsJSONObject: ISuperObject;
procedure AssignFromJSON(const JSON: String); overload;
procedure AssignFromJSON(JSON: ISuperObject); overload;
constructor FromJSON(const JSON: String); overload;
constructor FromJSON(JSON: ISuperObject); overload;
constructor FromJSON(const JSON: String; CreateArgs: Array of TValue; const ConstructMethod: String = 'Create'); overload;
constructor FromJSON(const JSON: ISuperObject; CreateArgs: Array of TValue; const ConstructMethod: String = 'Create'); overload;
end;
TBaseSuperRecord<T> = class
public
class function AsJSON(Rec: T): String;
class function AsJSONObject(Rec: T): ISuperObject;
class function FromJSON(JSON: String): T; overload;
class function FromJSON(JSON: ISuperObject): T; overload;
end;
TSuperRecord<T: Record> = class(TBaseSuperRecord<T>);
TJSON = class
public
class function Parse<T>(const Value: String): T; overload;
class function Parse<T>(JSON: ISuperObject): T; overload;
class function Parse<T>(JSON: ISuperArray): T; overload;
class function SuperObject<T>(Value: T): ISuperObject; overload;
{$IFDEF SP_DATASET}
class function SuperObject(Value: TDataSet): ISuperObject; overload;
class function Stringify(Value: TDataSet): String; overload;
{$ENDIF}
class function SuperObject(Value: TValue): ISuperObject; overload;
class function Stringify<T>(Value: T; Indent: Boolean = False; UniversalTime: Boolean = True): String; overload;
class function Stringify(Value: TValue; Indent: Boolean = False; UniversalTime: Boolean = True): String; overload;
end;
function SO(JSON: String = '{}'): ISuperObject; overload;
function SO(const Args: array of const): ISuperObject; overload;
function SA(JSON: String = '[]'): ISuperArray; overload;
function SA(const Args: array of const): ISuperArray; overload;
implementation
var GenericsUnit : String;
function SO(JSON: String): ISuperObject;
begin
if JSON = '' then JSON := '{}';
Result := TSuperObject.Create(JSON);
end;
function SO(const Args: array of const): ISuperObject;
var
I: Integer;
Members: ISuperArray;
begin
Result := TSuperObject.Create;
Members := SA(Args);
if Odd(Members.Length) then
Assert(False);
for I := 0 to (Members.Length div 2) - 1 do
Result.Add(Members.S[I*2], Members.Ancestor[(I*2)+1]);
end;
function SA(JSON: String): ISuperArray;
begin
Result := TSuperArray.Create(JSON);
end;
function SA(const Args: array of const): ISuperArray;
var
I: Integer;
SArray: ISuperArray;
SObject: ISuperObject;
begin
Result := TSuperArray.Create;
for I := 0 to High(Args) do
case PVarRec(@Args[I]).VType of
vtInteger : Result.Add(TJSONInteger.Create(PVarRec(@Args[I]).VInteger));
vtInt64 : Result.Add(TJSONInteger.Create(PVarRec(@Args[I]).VInt64^));
vtBoolean : Result.Add(TJSONBoolean.Create(PVarRec(@Args[I]).VBoolean));
{$IFNDEF NEXTGEN}
vtChar : Result.Add(TJSONString.Create(PVarRec(@Args[I]).VWideChar));
vtString : Result.Add(TJSONString.Create(String(PVarRec(@Args[I]).VString^)));
vtPChar : Result.Add(TJSONString.Create(Char(PVarRec(@Args[I]).VPChar^)));
vtAnsiString: Result.Add(TJSONString.Create(String(PVarRec(@Args[I]).VAnsiString)));
{$ENDIF}
vtWideChar: Result.Add(TJSONString.Create(PVarRec(@Args[I]).VWideChar));
vtExtended: Result.Add(TJSONFloat.Create(PVarRec(@Args[I]).VExtended^));
vtCurrency: Result.Add(TJSONFloat.Create(PVarRec(@Args[I]).VCurrency^));
vtWideString: Result.Add(TJSONString.Create(PWideChar(PVarRec(@Args[I]).VWideString)));
vtUnicodeString: Result.Add(TJSONString.Create(String(PVarRec(@Args[I]).VUnicodeString)));
vtInterface:
if PVarRec(@Args[I]).VInterface = nil then
Result.Add(TJSONNull.Create(False))
else if IInterface(PVarRec(@Args[I]).VInterface).QueryInterface(ISuperObject, SObject) = 0 then
Result.Add(SObject)
else if IInterface(PVarRec(@Args[I]).VInterface).QueryInterface(ISuperArray, SArray) = 0 then
Result.Add(SArray)
else
Assert(False);
vtPointer :
if PVarRec(@Args[I]).VPointer = nil then
Result.Add(TJSONNull.Create(False))
else
Result.Add(TJSONInteger.Create(NativeInt(PVarRec(@Args[I]).VPointer)));
vtVariant:
Result.Add(PVarRec(@Args[I]).VVariant^);
vtObject:
if PVarRec(@Args[I]).VPointer = nil then
Result.Add(TJSONNull.Create(False))
else
Result.Add(TJSONInteger.Create(NativeInt(PVarRec(@Args[I]).VPointer)));
vtClass:
if PVarRec(@Args[I]).VPointer = nil then
Result.Add(TJSONNull.Create(False))
else
Result.Add(TJSONInteger.Create(NativeInt(PVarRec(@Args[I]).VPointer)));
else
Assert(false);
end;
end;
{ TSuperObject }
constructor TBaseJSON<T, Typ>.Create(JSON: String; const CheckDate: Boolean);
type PInterface = ^IInterface;
var
JVal: IJSONAncestor;
PIntf: PInterface;
begin
FCheckDate := CheckDate;
if (Self.InheritsFrom(TSuperArray)) and (Trim(JSON) = '{}') then JSON := '[]';
JVal := TJSONObject.ParseJSONValue(JSON, FCheckDate);
if JVal.QueryInterface(GetTypeData(TypeInfo(T)).Guid, FJSONObj) = S_OK then
FInterface := TValue.From<T>(FJSONObj).AsInterface
else
FCasted := JVal
end;
function TBaseJSON<T, Typ>.GetValue<C>(const Name: Typ): C;
begin
if Self.InheritsFrom(TSuperObject) then
with TJSONObject(FInterface).Get(PString(@Name)^) do
if JsonValue is TJSONNull then
Result := Nil
else
Result := JSonValue as C
else
if Self.InheritsFrom(TSuperArray) then
Result := TJSONArray(FInterface).Get(PInteger(@Name)^) as C
else
Result := Nil;
end;
function TBaseJSON<T, Typ>.GetVariant(V: Typ): Variant;
begin
case GetType(V) of
varString: Result := S[V];
varInt64: Result := I[V];
varDouble: Result := F[V];
varBoolean: Result := B[V];
varDate: Result := D[V];
else
Result := Variants.Null;
end;
end;
function TBaseJSON<T, Typ>.Member(const Name: Typ): Boolean;
begin
if Self.InheritsFrom(TSuperObject) then
Result := Assigned(TJSONObject(FInterface).Get(PString(@Name)^))
else
Result := Assigned(TJSONArray(FInterface).Get(PInteger(@Name)^))
end;
procedure TBaseJSON<T, Typ>.Member<MT, TValue>(const Name: Typ; const Value: TValue);
var
Pair: IJSONPair;
begin
if Self.InheritsFrom(TSuperObject) then
begin
Pair := TJSONObject(FInterface).Get(PString(@Name)^);
if not Assigned(Pair) then
begin
TJSONObject(FInterface).AddPair(PString(@Name)^, DefaultValueClass<MT>(Value) as TJSONAncestor );
Exit;
end;
if Assigned(Pair.JsonValue) then
Pair.JsonValue := Nil;
Pair.JsonValue := DefaultValueClass<MT>(Value) as TJSONAncestor;
end
else
begin
if TJSONArray(FInterface).Count - 1 < PInteger(@Name)^ then
while TJSONArray(FInterface).Count - 1 < PInteger(@Name)^ do
TJSONArray(FInterface).Add(DefaultValueClass<MT>(Value) as TJSONAncestor)
else
TJSONArray(FInterface).Index[PInteger(@Name)^] := DefaultValueClass<MT>(Value) as TJSONAncestor
end;
end;
function TBaseJSON<T, Typ>.AsJSON(const Ident, UniversalTime: Boolean): String;
var
SBuild: TJSONWriter;
begin
try
SBuild := TJSONWriter.Create(Ident, UniversalTime);
if Assigned(FCasted) then
FCasted.AsJSONString(SBuild)
else
TJSONAncestor(FInterface).AsJSONString(SBuild);
Result := SBuild.ToString;
finally
SBuild.Free;
end;
end;
function TBaseJSON<T, Typ>.Contains(Key: Typ): Boolean;
begin
Result := GetData(Key) <> Nil;
end;
function TBaseJSON<T, Typ>.ContainsEx(Key: Typ; out Value: IJSONAncestor): Boolean;
begin
Value := GetData(Key);
Result := Value <> Nil;
end;
constructor TBaseJSON<T, Typ>.Create(JSON: T; const CheckDate: Boolean = True);
begin
FJSONObj := JSON;
FCasted := nil;
FCheckDate := CheckDate;
FInterface := TValue.From<T>(JSON).AsInterface;
end;
constructor TBaseJSON<T, Typ>.CreateCasted(Value: IJSONAncestor; const CheckDate: Boolean);
begin
// FJSONObj := Nil;
FInterface := Nil;
FCasted := Value;
FCheckDate := CheckDate;
end;
constructor TBaseJSON<T, Typ>.CreateWithEscape(JSON: String = '{}'; const CheckDate: Boolean = True; DummyPar : integer = 0);
begin
// DummyPar is needed only to suppress a Compiler Warning:
// ... CreateWithEscape' with identical parameters will be inaccessible from C++
Create(LimitedStrToUTF16(JSON), CheckDate);
end;
function TBaseJSON<T, Typ>.DefaultValueClass<TT>(const Value): TT;
var
r: TRttiContext;
ty: TRttiType;
begin
if TJSONString.InheritsFrom(TT) then
Result := TJSONString.Create(String(Value)) as TT
else if TJSONInteger.InheritsFrom(TT) then
Result := TJSONInteger.Create(Int64(Value)) as TT
else if TJSONFloat.InheritsFrom(TT) then
Result := TJSONFloat.Create(Double(Value)) as TT
else if TJSONBoolean.InheritsFrom(TT) then
Result := TJSONBoolean.Create(Boolean(Value)) as TT
else if TJSONNull.InheritsFrom(TT) then
Result := TJSONNull.Create(Boolean(Value)) as TT
else if TJSONDateTime.InheritsFrom(TT) then
Result := TJSONDateTime.Create(TDateTime(Value)) as TT
else if TJSONDate.InheritsFrom(TT) then
Result := TJSONDate.Create(TDate(Value)) as TT
else if TJSONTime.InheritsFrom(TT) then
Result := TJSONTime.Create(TTime(Value)) as TT
else if TJSONRaw.InheritsFrom(TT) then
Result := TJSONRaw.Create(String(Value)) as TT
else if TJSONArray.InheritsFrom(TT) then
begin
if Pointer(Value) <> Nil then
Exit(TJSONArray(ISuperArray(Value)) as TT);
Result := TJSONArray.Create as TT;
end
else if TJSONObject.InheritsFrom(TT) then
begin
if Pointer(Value) <> Nil then
Exit(TJSONObject(ISuperObject(Value)) as TT);
Result := TJSONObject.Create as TT;
end
else
begin
r := TRttiContext.Create;
ty := r.GetType(TClass(TT));
if ty = nil then
exit(Nil);
try
Result := TT(ty.GetMethod('Create').Invoke(ty.AsInstance.MetaclassType, []).AsObject);
except
if Assigned(ty) then
ty.Free;
raise;
end;
r.Free;
end;
end;
destructor TBaseJSON<T, Typ>.Destroy;
begin
inherited;
end;
function TBaseJSON<T, Typ>.GetBoolean(V: Typ): Boolean;
begin
Result := False;
if Member(V) then
Result := GetValue<TJSONAncestor>(V).ValueEx<Boolean>;
end;
function TBaseJSON<T, Typ>.GetData(Key: Typ): IJSONAncestor;
var
P: IJsonPair;
begin
if Self.InheritsFrom(TSuperObject) then
begin
P := TJSONObject(FInterface).Get(PString(@Key)^);
if Assigned(P) then
Result := P.JsonValue
else
Result := Nil
end
else
if Self.InheritsFrom(TSuperArray) then
Result := TJSONArray(FInterface).Get(PInteger(@Key)^);
end;
function TBaseJSON<T, Typ>.GetDataType: TDataType;
var
Cast: ICast;
begin
if TValue.From<T>(FJSONObj).AsInterface <> nil then
Cast := TCast.CreateFrom<T>(FJSONObj)
else
if Assigned(FCasted) then
Cast := TCast.Create(FCasted)
else
Exit(dtNil);
Result := Cast.DataType
end;
function TBaseJSON<T, Typ>.GetDate(V: Typ): TDate;
begin
Result := 0;
if Member(V) then
Result := GetValue<TJSONDate>(V).Value;
end;
function TBaseJSON<T, Typ>.GetDateTime(V: Typ): TDateTime;
begin
Result := 0;
if Member(V) then
Result := GetValue<TJSONDateTime>(V).Value;
end;
function TBaseJSON<T, Typ>.GetDouble(V: Typ): Double;
begin
Result := 0;
if Member(V) then
if GetType(V) = varInt64 then
Result := GetValue<TJSONInteger>(V).ValueEx<Int64>
else
Result := GetValue<TJSONFloat>(V).ValueEx<Double>;
end;
function TBaseJSON<T, Typ>.GetInteger(V: Typ): Int64;
begin
Result := 0;
if Member(V) then
Result := GetValue<TJSONInteger>(V).ValueEx<Int64>;
end;
function TBaseJSON<T, Typ>.GetNull(V: Typ): TMemberStatus;
var
Val: IJSONAncestor;
begin
if ContainsEx(V, Val) then begin
if Val is TJSONNull then
Result := jNull
else
Result := jAssigned
end else
Result := jUnAssigned;
end;
function TBaseJSON<T, Typ>.GetArray(V: Typ): ISuperArray;
var
J: IJSONArray;
begin
Result := Nil;
if not Member(V) then
Member<TJSONArray, Pointer>(V, nil);
J := GetValue<TJSONArray>(V);
Result := TSuperArray.Create(J);