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// $Header: /bes/bes/BossCvs/Calibration/xmlBase/xmlBase/docMan/DocMan.h,v 1.1.1.1 2005/10/17 06:10:27 maqm Exp $
#ifndef xmlBase_DocMan_h
#define xmlBase_DocMan_h

#include <string>
#include <vector>
#include "xmlBase/XmlParser.h"

typedef XERCES_CPP_NAMESPACE_QUALIFIER DOMElement DomElement;

namespace xmlBase {

  class DocClient;


  class DocMan {
  public: 
    static DocMan* getPointer(); 


    virtual bool parse(const std::string& filename, 
                       const std::string& docType=std::string(""));

    virtual bool regClient(const std::string& eltName, DocClient* client);

  protected:
    DocMan();
    virtual ~DocMan();

    bool regMeFirst(DocClient* client);

    class ClientList {
    public:
      ClientList(const std::string& eltName) : m_eltName(eltName) {}

      ~ClientList();

      bool add(DocClient* client, bool front=false);

      bool remove(DocClient* client);

      const std::string& getName() {return m_eltName;}

      void invoke(DomElement* elt);
    private:
      std::string m_eltName;
      std::vector<DocClient*> m_clients;
      typedef std::vector<DocClient*>::const_iterator ClientsIt;
    };       // end nested class ClientList

    ClientList* findList(const std::string& eltName);
  private:
    static DocMan* m_self;
    std::vector<ClientList*> m_lists;
    typedef std::vector<ClientList*>::const_iterator ListsIt;
    XmlParser* m_parser;
    DocClient* m_meFirst;
  };    //end DocMan class
}
#endif

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