/*
 * Copyright 2011, Oliver Tappe <zooey@hirschkaefer.de>
 * Distributed under the terms of the MIT License.
 */
#ifndef _PACKAGE__PRIVATE__CHECKSUM_ACCESSORS_H_
#define _PACKAGE__PRIVATE__CHECKSUM_ACCESSORS_H_


#include <Entry.h>
#include <String.h>


namespace BPackageKit {

namespace BPrivate {


class ChecksumAccessor {
public:
        virtual                                         ~ChecksumAccessor();

        virtual status_t                        GetChecksum(BString& checksum) const = 0;
};


class ChecksumFileChecksumAccessor : public ChecksumAccessor {
public:
                                                                ChecksumFileChecksumAccessor(
                                                                        const BEntry& checksumFileEntry);

        virtual status_t                        GetChecksum(BString& checksum) const;

private:
                        BEntry                          fChecksumFileEntry;
};


class GeneralFileChecksumAccessor : public ChecksumAccessor {
public:
                                                                GeneralFileChecksumAccessor(
                                                                        const BEntry& fileEntry,
                                                                        bool skipMissingFile = false);

        virtual status_t                        GetChecksum(BString& checksum) const;

private:
                        BEntry                          fFileEntry;
                        bool                            fSkipMissingFile;
};


class StringChecksumAccessor : public ChecksumAccessor {
public:
                                                                StringChecksumAccessor(const BString& checksum);

        virtual status_t                        GetChecksum(BString& _checksum) const;

private:
                        BString                         fChecksum;
};


}       // namespace BPrivate

}       // namespace BPackageKit


#endif // _PACKAGE__PRIVATE__CHECKSUM_ACCESSORS_H_