databasedescriptor.h

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/*
* Copyright 2016 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/


#pragma once

#include "gwnavruntime/blob/blobfieldarray.h"
#include "gwnavruntime/blob/blobaggregate.h"

namespace Kaim
{

class DatabaseDescriptorBlob
{
    KY_DEFINE_NEW_DELETE_OPERATORS(MemStat_NavData)
    KY_CLASS_WITHOUT_COPY(DatabaseDescriptorBlob)
    KY_ROOT_BLOB_CLASS(NavData, DatabaseDescriptorBlob, 0)

public:
    DatabaseDescriptorBlob() {}
    BlobFieldArray m_fields;
};
inline void SwapEndianness(Endianness::Target e, DatabaseDescriptorBlob& self)
{
    SwapEndianness(e, self.m_fields);
}

class DatabaseDescriptor
{
    KY_DEFINE_NEW_DELETE_OPERATORS(MemStat_NavData)

public:
    DatabaseDescriptor() : m_databaseIndex(0) {}

    KyResult ReadFromAggregate(const BlobAggregate& aggregate)
    {
        BlobAggregate::Collection<DatabaseDescriptorBlob> databaseDescriptor = aggregate.GetCollection<DatabaseDescriptorBlob>();
        if (databaseDescriptor.GetCount() != 1)
            return KY_ERROR; // 1 and only 1 DatabaseDescriptorBlob
        return ReadFromBlob(*databaseDescriptor.GetHandler(0)->Blob());
    }

    void AddMapping(BlobFieldsMapping& mapping)
    {
        mapping.AddUInt32("Database index", m_databaseIndex);
    }

    KyResult ReadFromBlob(const DatabaseDescriptorBlob& blob)
    {
        BlobFieldsMapping mapping;
        AddMapping(mapping);
        return mapping.ReadFromBlobFieldArray(blob.m_fields);
    }

public:
    KyUInt32 m_databaseIndex;
};

class DatabaseDescriptorBlobBuilder : public BaseBlobBuilder<DatabaseDescriptorBlob>
{
public:
    DatabaseDescriptorBlobBuilder(const DatabaseDescriptor* descriptor)
        : m_descriptor(descriptor) {}

private:
    virtual void DoBuild()
    {
        BlobFieldsMapping mapping;
        // AddMapping is not const, because it is used both for read and write.
        // Here we use it to
        DatabaseDescriptor* notConstDescriptor = (DatabaseDescriptor*)m_descriptor;
        notConstDescriptor->AddMapping(mapping);
        BlobFieldArrayBuilder blobFieldArrayBuilder("DatabaseDescriptor", mapping);
        BLOB_BUILD(m_blob->m_fields, blobFieldArrayBuilder);
    }
    const DatabaseDescriptor* m_descriptor;
};

} // namespace Kaim