[simspark-cvs] simspark/spark/oxygen/monitorserver custommonitor.cpp,NONE,1.1 custommonitor.h,NONE,1

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Update of /cvsroot/simspark/simspark/spark/oxygen/monitorserver
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14301/monitorserver

Added Files:
	custommonitor.cpp custommonitor.h custommonitor_c.cpp 
	monitorcmdparser.cpp monitorcmdparser.h monitorcmdparser_c.cpp 
	monitoritem.h monitoritem_c.cpp monitorserver.cpp 
	monitorserver.h monitorserver_c.cpp monitorsystem.cpp 
	monitorsystem.h monitorsystem_c.cpp 
Log Message:

--- NEW FILE: monitorcmdparser.h ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorcmdparser.h,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef OXYGEN_MONITORCMDPARSER_H
#define OXYGEN_MONITORCMDPARSER_H

#include <zeitgeist/leaf.h>
#include <oxygen/gamecontrolserver/predicate.h>

namespace oxygen
{

class MonitorCmdParser : public zeitgeist::Leaf
{
public:
    MonitorCmdParser();
    virtual ~MonitorCmdParser();

    /** This function is called from the monitor server implementation
        to parse any command strings received from the monitor client
        process
     */
    virtual void ParseMonitorMessage(const std::string& data) = 0;
};

} // namespace oxygen

DECLARE_ABSTRACTCLASS(MonitorCmdParser);

#endif // OXYGEN_MONITORCMDPARSER_H

--- NEW FILE: monitorsystem.cpp ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorsystem.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "monitorsystem.h"

using namespace oxygen;

MonitorSystem::MonitorSystem() : Node()
{
}

MonitorSystem::~MonitorSystem()
{
}

--- NEW FILE: monitorcmdparser_c.cpp ---
/* -*- mode: c++; c-basic-indent: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorcmdparser_c.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "monitorcmdparser.h"

using namespace oxygen;

void CLASS(MonitorCmdParser)::DefineClass()
{
    DEFINE_BASECLASS(zeitgeist/Leaf);
}

--- NEW FILE: monitorsystem_c.cpp ---
/* -*- mode: c++; c-basic-indent: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorsystem_c.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "monitorsystem.h"

using namespace oxygen;

void CLASS(MonitorSystem)::DefineClass()
{
    DEFINE_BASECLASS(zeitgeist/Leaf);
}

--- NEW FILE: monitorserver_c.cpp ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorserver_c.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "monitorserver.h"

using namespace oxygen;
using namespace std;

FUNCTION(MonitorServer,registerMonitorSystem)
{
    string inMonitorSysName;

    return (
            (in.GetSize() == 1) &&
            (in.GetValue(in.begin(), inMonitorSysName)) &&
            (obj->RegisterMonitorSystem(inMonitorSysName))
            );
}

FUNCTION(MonitorServer,registerMonitorItem)
{
    string inMonitorItemName;

    return (
            (in.GetSize() == 1) &&
            (in.GetValue(in.begin(), inMonitorItemName)) &&
            (obj->RegisterMonitorItem(inMonitorItemName))
            );
}

void CLASS(MonitorServer)::DefineClass()
{
    DEFINE_BASECLASS(zeitgeist/Node);
    DEFINE_FUNCTION(registerMonitorSystem);
    DEFINE_FUNCTION(registerMonitorItem);
}

--- NEW FILE: monitoritem.h ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitoritem.h,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef OXYGEN_MONITORITEM_H
#define OXYGEN_MONITORITEM_H

#include <zeitgeist/leaf.h>
#include <oxygen/gamecontrolserver/predicate.h>

namespace oxygen
{

class MonitorItem : public zeitgeist::Leaf
{
public:
    MonitorItem() : Leaf() {}
    virtual ~MonitorItem() {}

    /** This function is called once for every MonitorSystem each time
     *  a new client connects. It should append predicates to a list
     *  that is sent using the active monitor
     */
    virtual void GetInitialPredicates(PredicateList& pList) = 0;

    /** This function will be called periodically to append predicates
        to a list that is sent using the active monitor
     */
    virtual void GetPredicates(PredicateList& pList) = 0;
};

DECLARE_ABSTRACTCLASS(MonitorItem);

} // namespace oxygen

#endif // OXYGEN_MONITORITEM_H

--- NEW FILE: custommonitor.cpp ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: custommonitor.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "custommonitor.h"

using namespace oxygen;

CustomMonitor::CustomMonitor() : zeitgeist::Leaf()
{
}

CustomMonitor::~CustomMonitor()
{
}

--- NEW FILE: custommonitor_c.cpp ---
/* -*- mode: c++; c-basic-indent: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: custommonitor_c.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "custommonitor.h"

using namespace oxygen;

void CLASS(CustomMonitor)::DefineClass()
{
    DEFINE_BASECLASS(zeitgeist/Leaf);
}

--- NEW FILE: custommonitor.h ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: custommonitor.h,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef OXYGEN_CUSTOMMONITOR_H
#define OXYGEN_CUSTOMMONITOR_H

#include <zeitgeist/leaf.h>
#include <oxygen/gamecontrolserver/predicate.h>

namespace oxygen
{

class CustomMonitor : public zeitgeist::Leaf
{
public:
    CustomMonitor();
    virtual ~CustomMonitor();

    /** This function will be called be called periodically from the
        monitor implementation to do any monitor updates. Custom
        predicates that the Monitor client receives are passed as a
        PredicateList
     */
    virtual void ParseCustomPredicates(const oxygen::PredicateList& pList) = 0;
};

} // namespace oxygen

DECLARE_ABSTRACTCLASS(CustomMonitor);

#endif // OXYGEN_CUSTOMMONITOR_H

--- NEW FILE: monitoritem_c.cpp ---
/* -*- mode: c++; c-basic-indent: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitoritem_c.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "monitoritem.h"

using namespace oxygen;

void CLASS(MonitorItem)::DefineClass()
{
    DEFINE_BASECLASS(zeitgeist/Leaf);
}

--- NEW FILE: monitorserver.h ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorserver.h,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef OXYGEN_MONITORSERVER_H
#define OXYGEN_MONITORSERVER_H

#include <zeitgeist/class.h>
#include <zeitgeist/node.h>
#include "monitorsystem.h"

namespace oxygen
{

class MonitorServer : public zeitgeist::Node
{
public:
    MonitorServer();
    virtual ~MonitorServer();

    // one note about std::string. This class is capable of handling
    // binary data (i.e. not NULL terminated strings). Use the
    // std::string(basic_string(const charT* s, size_type n)
    // constructor to construct a string containing binary data and
    // the const charT* data() member to access binary data.

    /** This function creates an instance of class 'monitorSysName'
     *  and adds it as a child node below this server
     */
    bool RegisterMonitorSystem(const std::string& monitorSysName);

    /** This function creates an instance of class 'monitorItem' and
        adds it as a child node below this server
     */
    bool RegisterMonitorItem(const std::string& monitorItemName);

    /** the following set of functions if called by the SpadesServer */

    /** This function is called once for every monitor. It should
     *  return any header/setup information that is needed.
     */
    std::string GetMonitorHeaderInfo();

    /** This function will be called periodically to get information
     * about the current state of the world. The format is completely
     * determined by what the monitors will expect; no processing is
     * done by the simulation engine
     */
    std::string GetMonitorInfo();

    /** If a monitor sends information to the world model, this
     * function is called to process it.
     */
    void ParseMonitorMessage(const std::string& data);

protected:
    /** returns a shared_ptr to the first registered MonitorSystem */
    boost::shared_ptr<MonitorSystem> GetMonitorSystem();

    /** collects a list of predicates from all registered MonitorItems */
    void CollectItemPredicates(bool initial, PredicateList& pList);

private:
};

DECLARE_CLASS(MonitorServer);

} // namespace oxygen

#endif // OXYGEN_MONITORSERVER_H

--- NEW FILE: monitorsystem.h ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorsystem.h,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef OXYGEN_MONITORSYSTEM_H
#define OXYGEN_MONITORSYSTEM_H

#include <zeitgeist/class.h>
#include <zeitgeist/node.h>
#include <oxygen/gamecontrolserver/predicate.h>

namespace oxygen
{

class MonitorSystem : public zeitgeist::Node
{
public:
    MonitorSystem();

    virtual ~MonitorSystem();

    // one note about std::string. This class is capable of handling
    // binary data (i.e. not NULL terminated strings). Use the
    // std::string(basic_string(const charT* s, size_type n)
    // constructor to construct a string containing binary data and
    // the const charT* data() member to access binary data.

    /** This function is called once for every MonitorSystem each time
     *  a new client connects. It should return any header/setup
     *  information that is needed.
     *  \param items holds a list of additional name value
     *  pairs. These predicates are collected from MonitorItem objects
     *  registered to the MonitorServer. The monitor should transfer
     *  them to the client if possible.
     */
    virtual std::string GetMonitorHeaderInfo(const PredicateList& pList) = 0;

    /** This function will be called periodically to get information
     * about the current state of the world.
     * \param items holds a list of additional name value pairs. These
     * predicates are collected from MonitorItem objects registered to
     * the MonitorServer. The monitor should transfer them to the
     * client if possible.
     */
    virtual std::string GetMonitorInfo(const PredicateList& pList) = 0;

    /** If a monitor sends information to the world model, this
     * function is called to process it.
     */
    virtual void ParseMonitorMessage(const std::string& /* data */) = 0;
};

DECLARE_ABSTRACTCLASS(MonitorSystem);

} // namespace oxygen

#endif // OXYGEN_MONITORSYSTEM_H

--- NEW FILE: monitorcmdparser.cpp ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorcmdparser.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "monitorcmdparser.h"

using namespace oxygen;

MonitorCmdParser::MonitorCmdParser() : zeitgeist::Leaf()
{
}

MonitorCmdParser::~MonitorCmdParser()
{
}

--- NEW FILE: monitorserver.cpp ---
/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*-

   this file is part of rcssserver3D
   Fri May 9 2003
   Copyright (C) 2002,2003 Koblenz University
   Copyright (C) 2003 RoboCup Soccer Server 3D Maintenance Group
   $Id: monitorserver.cpp,v 1.1 2005/12/05 21:16:49 rollmark Exp $

   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; version 2 of the License.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <zeitgeist/logserver/logserver.h>
#include "monitorserver.h"
#include "monitoritem.h"

using namespace oxygen;
using namespace boost;
using namespace std;

MonitorServer::MonitorServer() : Node()
{
}

MonitorServer::~MonitorServer()
{
}

bool
MonitorServer::RegisterMonitorSystem(const std::string& monitorSysName)
{
    // check if a monitor system of the requested type was already created
    shared_ptr<MonitorSystem> monitorSys =
        shared_dynamic_cast<MonitorSystem>(GetChildOfClass(monitorSysName));

    if (monitorSys.get() != 0)
    {
        return true;
    }

    // create the monitor system
    monitorSys = shared_dynamic_cast<MonitorSystem>(GetCore()->New(monitorSysName));

    if (monitorSys.get() == 0)
    {
        GetLog()->Error() << "ERROR: (MonitorServer) Cannot create monitor system '"
                          << monitorSysName << "'" << std::endl;
        return false;
    }

    // link the monitor system in the hierarchy
    monitorSys->SetName(monitorSysName);

    if (! AddChildReference(monitorSys))
        {
            GetLog()->Error() << "ERROR: (MonitorServer) Cannot link the monitor system '"
                              << monitorSysName << "' to the hierarchy\n";
            return false;
        }

    GetLog()->Debug() << "(MonitorServer) Registered monitor system '"
                      << monitorSysName << "'\n";

    return true;
}

bool
MonitorServer::RegisterMonitorItem(const std::string& monitorItemName)
{
    // check if a monitor item of the requested type was already created
    shared_ptr<MonitorItem> monitorItem =
        shared_dynamic_cast<MonitorItem>(GetChildOfClass(monitorItemName));

    if (monitorItem.get() != 0)
    {
        return true;
    }

    // create the monitor item
    monitorItem = shared_dynamic_cast<MonitorItem>(GetCore()->New(monitorItemName));

    if (monitorItem.get() == 0)
    {
        GetLog()->Error() << "ERROR: (MonitorServer) Cannot create monitor item '"
                          << monitorItemName << "'" << std::endl;
        return false;
    }

    // link the monitor item in the hierarchy
    monitorItem->SetName(monitorItemName);

    if (! AddChildReference(monitorItem))
        {
            GetLog()->Error() << "ERROR: (MonitorServer) Cannot link the monitor item '"
                              << monitorItemName << "' to the hierarchy\n";
            return false;
        }

    GetLog()->Debug() << "(MonitorServer) Registered monitor item '"
                      << monitorItemName << "'\n";

    return true;
}

boost::shared_ptr<MonitorSystem> MonitorServer::GetMonitorSystem()
{
    return shared_static_cast<MonitorSystem>
        (
         FindChildSupportingClass<MonitorSystem>()
         );
}

void
MonitorServer::CollectItemPredicates(bool initial, PredicateList& pList)
{
    Leaf::TLeafList itemList;
    ListChildrenSupportingClass<MonitorItem>(itemList);

    for (
        Leaf::TLeafList::const_iterator iter = itemList.begin();
        iter != itemList.end();
        ++iter
        )
    {
        shared_ptr<MonitorItem> item =
            shared_static_cast<MonitorItem>(*iter);

        if (initial)
        {
            item->GetInitialPredicates(pList);
        } else
        {
            item->GetPredicates(pList);
        }
    }
}

string MonitorServer::GetMonitorHeaderInfo()
{
    shared_ptr<MonitorSystem> monitorSystem = GetMonitorSystem();

    if (monitorSystem.get() == 0)
    {
        GetLog()->Warning()
            << "WARNING: (MonitorServer) Monitor System missing.\n";
        return string();
    }

    PredicateList pList;
    CollectItemPredicates(true,pList);
    return monitorSystem->GetMonitorHeaderInfo(pList);
}

string MonitorServer::GetMonitorInfo()
{
    shared_ptr<MonitorSystem> monitorSystem = GetMonitorSystem();

    if (monitorSystem.get() == 0)
        {
            return string();
        }

    PredicateList pList;
    CollectItemPredicates(false,pList);
    return monitorSystem->GetMonitorInfo(pList);
}

void MonitorServer::ParseMonitorMessage(const string& data)
{
    shared_ptr<MonitorSystem> monitorSystem = GetMonitorSystem();

    if (monitorSystem.get() != 0)
        {
            monitorSystem->ParseMonitorMessage(data);
        }
}