ResourceResolver.h

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//    Copyright 2004, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API 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.
//
//    H3D API 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 H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//

#ifndef __RESOURCERESOLVER_H__
#define __RESOURCERESOLVER_H__

#include "H3DApi.h"
#include <string>
using namespace std;
#include "URNResolver.h"
#include "AutoPtrVector.h"


namespace H3D {

  class H3DAPI_API ResourceResolver {
  public:

    virtual ~ResourceResolver() {}

    virtual string resolveURLAsTmpFile( const string &url ) = 0;

    static void setURNResolver( URNResolver *resolver ) {
      urn_resolver.reset( resolver );
    } 

    static URNResolver* getURNResolver() {
      return urn_resolver.get();
    } 

    static void addResolver( ResourceResolver *resolver ) {
      resolvers.push_back( resolver );
    }

    static void setBaseURL( const string &base ) {
      baseURL = base;
    }

    static const string & getBaseURL() {
      return baseURL;
    }

    static string resolveURLAsFile( const string &urn );

  protected:
    static auto_ptr< URNResolver > urn_resolver;
    static AutoPtrVector< ResourceResolver > resolvers;
    static string baseURL;
  };
}

#endif

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