I3Identifier.h

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//
// Copyright (C) 2006 Institut fuer Telematik, Universitaet Karlsruhe (TH)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//

#ifndef __I3IDENTIFIER_H__
#define __I3IDENTIFIER_H__

#include <omnetpp.h>
#include <OverlayKey.h>

#define DEFAULT_PREFIX_LENGTH   160
#define DEFAULT_KEY_LENGTH      256

class I3Identifier {
public:
    I3Identifier();

    I3Identifier(unsigned char b);

    I3Identifier(int prefixL, int keyL);

    I3Identifier(const I3Identifier& id);

    I3Identifier(std::string s);

    int getKeyLength() const;

    int getPrefixLength() const;

    void clear();

    int compareTo(const I3Identifier&) const;

    bool operator <(const I3Identifier&) const;

    bool operator >(const I3Identifier&) const;

    bool operator ==(const I3Identifier&) const;

    I3Identifier &operator =(const I3Identifier&);

    bool isClear();

    bool isMatch(const I3Identifier& id) const;

    int distanceTo(const I3Identifier& id) const;

    void createFromHash(const std::string &s, const std::string &o = "");

    void createRandomKey();
    void createRandomPrefix();
    void createRandomSuffix();

    int length() const;

    OverlayKey asOverlayKey() const;

    void setName(std::string s);
    std::string getName();

    friend std::ostream& operator<<(std::ostream& os, const I3Identifier& id);

    ~I3Identifier();

protected:
    unsigned char *key;

    unsigned short prefixLength;

    unsigned short keyLength;

    std::string name;

    void initKey(int prefixL, int keyL);
};

#endif