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/****************************************************************************/
/* ORB manager v. 2.0 - CORBA management with DIET forwarders               */
/*                                                                          */
/*  Author(s):                                                              */
/*    - Gaƫl Le Mahec (gael.le.mahec@ens-lyon.fr)                           */
/*                                                                          */
/*  This file is part of DIET .                                             */
/*                                                                          */
/*  Copyright (C) 2000-2003 ENS Lyon, LIFC, INSA, INRIA and SysFera (2000)  */
/*                                                                          */
/*  - Frederic.Desprez@ens-lyon.fr (Project Manager)                        */
/*  - Eddy.Caron@ens-lyon.fr (Technical Manager)                            */
/*  - Tech@sysfera.com (Maintainer and Technical Support)                   */
/*                                                                          */
/*  This software is a computer program whose purpose is to provide an      */
/*  distributed logging services.                                           */
/*                                                                          */
/*                                                                          */
/*  This software is governed by the CeCILL license under French law and    */
/*  abiding by the rules of distribution of free software.  You can  use,   */
/*  modify and/ or redistribute the software under the terms of the CeCILL  */
/*  license as circulated by CEA, CNRS and INRIA at the following URL       */
/*  "http://www.cecill.info".                                               */
/*                                                                          */
/*  As a counterpart to the access to the source code and  rights to copy,  */
/*  modify and redistribute granted by the license, users are provided      */
/*  only with a limited warranty  and the software's author,  the holder    */
/*  of the economic rights,  and the successive licensors  have only        */
/*  limited liability.                                                      */
/*                                                                          */
/*  In this respect, the user's attention is drawn to the risks             */
/*  associated with loading,  using,  modifying and/or developing or        */
/*  reproducing the software by the user in light of its specific status    */
/*  of free software, that may mean  that it is complicated to              */
/*  manipulate, and  that  also therefore means  that it is reserved for    */
/*  developers and experienced professionals having in-depth computer       */
/*  knowledge. Users are therefore encouraged to load and test the          */
/*  software's suitability as regards their requirements in conditions      */
/*  enabling the security of their systems and/or data to be ensured and,   */
/*  more generally, to use and operate it in the same conditions as         */
/*  regards security.                                                       */
/*                                                                          */
/*  The fact that you are presently reading this means that you have had    */
/*  knowledge of the CeCILL license and that you accept its terms.          */
/*                                                                          */
/****************************************************************************/
/* $Id$
 * $Log$
 * Revision 1.4  2011/05/13 08:17:51  bdepardo
 * Update ORB manager with changes made in DIET ORB manager.
 *
 * Revision 1.3  2011/05/13 06:42:44  bdepardo
 * Const methods whenever possible
 *
 * Revision 1.2  2011/04/22 11:44:21  bdepardo
 * Use a signal handler to handle background option.
 * This handler catches SIGINT and SIGTERM.
 *
 * Revision 1.1  2010/12/03 12:40:25  kcoulomb
 * MAJ log to use forwarders
 *
 * Revision 1.2  2010/11/10 04:06:07  bdepardo
 * New compilation organization
 *
 * Revision 1.1  2010/11/10 02:27:43  kcoulomb
 * Update the log to use the forwarder.
 * Programm run without launching forwarders but fails with forwarder.
 *
 * Revision 1.23  2010/07/27 10:24:32  glemahec
 * Improve robustness & general performance
 *
 * Revision 1.22  2010/07/14 23:45:30  bdepardo
 * Header corrections
 *
 * Revision 1.21  2010/07/12 16:11:04  glemahec
 * DIET 2.5 beta 1 - New ORB manager; dietForwarder application
 *
 ****************************************************************************/

#ifndef LOGORBMGR_HH
#define LOGORBMGR_HH

#include <string>
#include <map>
#include <list>

#include <omniORB4/CORBA.h>
#include <sys/types.h>

#include <omnithread.h>

#include "CorbaLogForwarder.hh"


//#define LOGTOOLCTXT "LogTool"
#define LOGCOMPCTXT "LogServiceC" //"LogService component"
#define LOGTOOLCTXT "LogServiceT" //"LogService tool"
#define LOGCOMPCONFCTXT "LogServiceC2" //"LogService component"
#define LOGTOOLMSGCTXT "LogServiceT2" //"LogService tool"
#define LOGFWRDCTXT "LogForwarder"
#define DIETFWRD    "DietForwarder"


class LogORBMgr {
public:
  /* Constructors. */
  LogORBMgr(int argc, char* argv[]);
  LogORBMgr(CORBA::ORB_ptr ORB);
  LogORBMgr(CORBA::ORB_ptr ORB, PortableServer::POA_var POA);
  
  /* Destructor. */
  ~LogORBMgr();

  /* Bind the object using its ctxt/name */
  void bind(const std::string& ctxt, const std::string& name,
            CORBA::Object_ptr object, const bool rebind = false) const;
  /* Bind an object using its IOR. */
  void bind(const std::string& ctxt, const std::string& name,
            const std::string& IOR, const bool rebind = false) const;
  /* Rebind objects. */
  void rebind(const std::string& ctxt, const std::string& name,
              CORBA::Object_ptr object) const;
  void rebind(const std::string& ctxt, const std::string& name,
              const std::string& IOR) const;
  /* Unbind an object. */
  void unbind(const std::string& ctxt, const std::string& name) const;
	
  /* Forwarders binding. */
  void fwdsBind(const std::string& ctxt, const std::string& name,
                const std::string& ior, const std::string& fwName = "") const;
  /* Forwarders unbinding. */
  void fwdsUnbind(const std::string& ctxt, const std::string& name,
                  const std::string& fwName = "") const;
	
  /* Resolve an object using its IOR or ctxt/name. */
  CORBA::Object_ptr resolveObject(const std::string& IOR) const;
  CORBA::Object_ptr resolveObject(const std::string& ctxt, const std::string& name,
				  const std::string& fwdName = "") const;
	
  /* Get the list of the objects id binded in the omniNames server for a given context. */
  std::list<std::string> list(CosNaming::NamingContext_var& ctxt) const;
  std::list<std::string> list(const std::string& ctxtName) const;
  
  template <typename CORBA_object, typename CORBA_ptr>
  CORBA_ptr resolve(const std::string& ctxt, const std::string& name,
		    const std::string& fwdName = "") const {
    return CORBA_object::_duplicate(CORBA_object::_narrow(resolveObject(ctxt, name, fwdName)));
  }
  template <typename CORBA_object, typename CORBA_ptr>
  CORBA_ptr resolve(const std::string& IOR) const {
    return CORBA_object::_duplicate(CORBA_object::_narrow(resolveObject(IOR)));
  }
  
  /* Return the IOR of the passed object. */
  std::string getIOR(CORBA::Object_ptr object) const;
  std::string getIOR(const std::string& ctxt, const std::string& name) const;
  
  /* Activate an object. */
  void activate(PortableServer::ServantBase* object) const;
  /* Deactivate an object. */
  void deactivate(PortableServer::ServantBase* object) const;
  
  /* Wait for the request on activated objects. */
  void wait() const;
  void shutdown(bool waitForCompletion);

  static void init(int argc, char* argv[]);
  
  static LogORBMgr* getMgr();
  
  /* IOR management functions. */
  static void makeIOR(const std::string& strIOR, IOP::IOR& ior);
  static void makeString(const IOP::IOR& ior, std::string& strIOR);
  static std::string getHost(IOP::IOR& ior);
  static std::string getHost(const std::string& strIOR);
  static unsigned int getPort(IOP::IOR& ior);
  static unsigned int getPort(const std::string& strIOR);
  static std::string getTypeID(IOP::IOR& ior);
  static std::string getTypeID(const std::string& strIOR);
  static std::string convertIOR(IOP::IOR& ior, const std::string& host,
				const unsigned int port);
  static std::string convertIOR(const std::string& ior, const std::string& host,
				const unsigned int port);
  
  /* Object cache management functions. */
  void resetCache() const;
  void removeObjectFromCache(const std::string& name) const;
  void removeObjectFromCache(const std::string& ctxt,
			     const std::string& name) const;
  void cleanCache() const;
  static void hexStringToBuffer(const char* ptr, const size_t size,
				cdrMemoryStream& buffer);



private:
  /* The omniORB Object Request Broker for this manager. */
  CORBA::ORB_ptr ORB;
  /* The Portable Object Adaptor. */
  PortableServer::POA_var POA;
  
  /* Is the ORB down? */
  bool down;
  
  /* CORBA initialization. */
  void init(CORBA::ORB_ptr ORB);

  /* Object cache to avoid to contact OmniNames too many times. */
  mutable std::map<std::string, CORBA::Object_ptr> cache;
  /* Cache mutex. */
  mutable omni_mutex cacheMutex;

  /* The manager instance. */
  static LogORBMgr* theMgr;

  static void
  sigIntHandler(int sig);
#ifndef __cygwin__
  static omni_mutex waitLock;
#else
  static sem_t waitLock;
#endif


};


#endif