graph.h

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/*
# Copyright (c) <2009> <Sebastien Heymann>
#
# 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.
*/

#ifndef _GRAPH_H
#define _GRAPH_H

#include <set>
#include <vector>
#include <map>
#include <iostream>
#include "typedefs.h"
#include "exceptions.h"
#include "nodeiter.h"
#include "edgeiter.h"

namespace libgexf {

class NodeIter;
class EdgeIter;

class Graph {
public:
    Graph();

    Graph(const Graph& orig);
    
    virtual ~Graph();

    void addNode(const libgexf::t_id id);

    void addEdge(const libgexf::t_id id, const libgexf::t_id source_id, const libgexf::t_id target_id, const float weight=1.0, const libgexf::t_edge_type type=EDGE_UNDEF);

    void removeNode(const libgexf::t_id id);

    void removeEdge(const libgexf::t_id source_id, const libgexf::t_id target_id);


    bool containsNode(const libgexf::t_id id) const;

    bool containsEdge(const libgexf::t_id source_id, const libgexf::t_id target_id) const;

    t_id getEdge(const libgexf::t_id source_id, const libgexf::t_id target_id) const;


    libgexf::NodeIter* getNodes() const;

    libgexf::EdgeIter* getEdges() const;

    std::vector<libgexf::t_id> getNeighbors(const libgexf::t_id node_id) const;


    unsigned int getNodeCount() const;

    unsigned int getEdgeCount() const;

    unsigned int getDegree(const libgexf::t_id node_id) const;


    void clearEdges(const libgexf::t_id node_id);

    void clear();

    void clearEdges();


    void readLock() throw(libgexf::ReadLockException);

    void readUnlock();

    void writeLock() throw(libgexf::WriteLockException);

    void writeUnlock();

    bool isReadLock();

    bool isWriteLock();

    bool isUnlock();
protected:
    std::set<t_id> _nodes; 
    std::map<t_id,std::map<t_id,t_id> > _edges; 
    std::map<t_id,std::set<t_id> > _reverse_edges; 
    std::set<t_id> _bloom_edges; 
    std::map<t_id,std::map<t_edge_property,t_edge_value> > _edges_properties; 
    unsigned short int _rlock_count; 
    char _lock_flag;

    friend std::ostream& operator<<(std::ostream& os, const Graph& o);
    friend class NodeIter;
    friend class EdgeIter;
private:
    //Graph& operator=(const Graph& orig);
};

} /* namespace libgexf */

#endif  /* _GRAPH_H */