ArchiveMD5.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/UnrealString.h"
#include "CoreMinimal.h"
#include "HAL/Platform.h"
#include "Misc/AssertionMacros.h"
#include "Misc/SecureHash.h"
#include "Serialization/Archive.h"
#include "UObject/NameTypes.h"
 
class FArchiveMD5 : public FArchive
{
public:
    inline FArchiveMD5()
    {
        SetIsLoading(false);
        SetIsSaving(true);
        SetIsPersistent(false);
    }
 
    CORE_API virtual FString GetArchiveName() const;
 
    void Serialize(void* Data, int64 Num) override
    {
        MD5.Update((uint8*)Data, Num);
    }
 
    using FArchive::operator<<;
 
    virtual FArchive& operator<<(class FName& Value) override
    {
        FString NameAsString = Value.ToString();
        *this << NameAsString;
        return *this;
    }
 
    virtual FArchive& operator<<(class UObject*& Value) override
    {
        check(0);
        return *this;
    }
 
    virtual void Reset() override
    {
        FArchive::Reset();
        MD5 = FMD5();
    }
 
    void GetHash(FMD5Hash& Hash)
    {
        Hash.Set(MD5);
    }
 
    FGuid GetGuidFromHash()
    {
        FMD5Hash MD5Hash;
        GetHash(MD5Hash);
        return MD5HashToGuid(MD5Hash);
    }
 
protected:
    FMD5 MD5;
};