/usr/include/tango/classattribute.h is in libtango7-dev 7.2.6+dfsg-4build2.
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//
// file : ClassAttribute.h
//
// description : Include file for the Tango attribute.
// Three classes are declared in this file :
//
// AttrProperty : A helper class. This class stored a couple
// property name, property value as strings
// ClassAttribute : A class for each attribute with all
// its properties defined at the class
// level. The properties are still stored
// as string
// MultiClassAttribute : A class to manage all the class
// level definition of attributes.
// There is one instance of this class
// for each tango device pattern
//
// project : TANGO
//
// author(s) : E.Taurel
//
// Copyright (C) : 2004,2005,2006,2007,2008,2009,2010,2011
// European Synchrotron Radiation Facility
// BP 220, Grenoble 38043
// FRANCE
//
// This file is part of Tango.
//
// Tango is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Tango 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Tango. If not, see <http://www.gnu.org/licenses/>.
//
// $Revision: 15556 $
//
// $Log$
// Revision 3.9 2010/09/09 13:44:46 taurel
// - Add year 2010 in Copyright notice
//
// Revision 3.8 2010/08/25 11:41:27 taurel
// - Fix some bugs preventing dynamic attributes management (in some cases)
//
// Revision 3.7 2009/01/21 12:49:04 taurel
// - Change CopyRights for 2009
//
// Revision 3.6 2008/10/06 15:00:36 taurel
// - Changed the licensing info from GPL to LGPL
//
// Revision 3.5 2008/10/03 06:51:36 taurel
// - Add some licensing info in each files
//
// Revision 3.4 2005/06/29 08:30:53 taurel
// - Last commit before release 5.2 ?
//
// Revision 3.3 2004/07/07 08:39:57 taurel
//
// - Fisrt commit after merge between Trunk and release 4 branch
// - Add EventData copy ctor, asiignement operator and dtor
// - Add Database and DeviceProxy::get_alias() method
// - Add AttributeProxy ctor from "device_alias/attribute_name"
// - Exception thrown when subscribing two times for exactly yhe same event
//
// Revision 3.2 2003/08/22 12:52:54 taurel
// - For device implementing release 3 of IDL (derivating from device_3impl), change
// the way how attributes are read or written
// - Fix small bug in vector iterator usage in case of "erase()" method called in
// a for loop
//
// Revision 3.1 2003/08/21 07:23:46 taurel
// - End of the implementation of the new way to transfer data for read and
// write attributes (better use of exception)
// - Added Attribute::set_date() and Attribute::set_value_date_quality() methods
// - Added DeviceAttribute ctors from "const char *"
// - Enable writing of spectrum and image attributes
// - Many new DeviceAttribute ctors/inserters to enable easy image and spectrums
// attribute writing
// - Attribute date automatically set in case of attribute quality factor set to INVALID
// - Change in the polling thread discarding element algo. to support case of polling
// several cmd/atts at the same polling period with cmd/attr having a long response time
// - Take cmd/attr execution time into account in the "Data not updated since" polling
// status string
// - Split "str().c_str()" code in two lines of code. It was the reason of some problem
// on Windows device server
// - Add the possibility to set a cmd/attr polling as "externally triggered". Add method
// to send trigger to the polling thread
//
// Revision 3.0.4.1 2003/09/30 11:49:56 taurel
// Add some changes foreseen for release 4.1 and already implemented on
// the trunck into this release 4.0 branch
//
// Revision 3.0 2003/03/25 16:41:48 taurel
// Many changes for Tango release 3.0 including
// - Added full logging features
// - Added asynchronous calls
// - Host name of clients now stored in black-box
// - Three serialization model in DS
// - Fix miscellaneous bugs
// - Ported to gcc 3.2
// - Added ApiUtil::cleanup() and destructor methods
// - Some internal cleanups
// - Change the way how TangoMonitor class is implemented. It's a recursive
// mutex
//
// Revision 2.10 2003/03/11 17:55:47 nleclercq
// Switch from log4cpp to log4tango
//
// Revision 2.9 2003/02/17 14:57:39 taurel
// Added the new Tango logging stuff (Thanks Nicolas from Soleil)
//
// Revision 2.8 2002/12/16 12:06:21 taurel
// No change in code at all but only forgot th emost important line in
// list of updates in the previous release :
// - Change underlying ORB from ORBacus to omniORB
//
// Revision 2.7 2002/12/16 10:15:36 taurel
// - New method get_device_list() in Util class
// - Util::get_class_list takes DServer device into account
// - Util::get_device_by_name() takes DServer device into account
// - Util::get_device_list_by_class() takes DServer device into account
// - New parameter to the attribute::set_value() method to enable CORBA to free
// memory allocated for the attribute
//
// Revision 2.6 2002/10/17 07:43:05 taurel
// Fix bug in history stored by the polling thread :
// - We need one copy of the attribute data to build an history!!! It is true
// also for command which return data created by the DeviceImpl::create_xxx
// methods. Chnage in pollring.cpp/pollring.h/dserverpoll.cpp/pollobj.cpp
// and pollobj.h
//
// Revision 2.5 2002/10/15 11:27:18 taurel
// Fix bugs in device.cpp file :
// - Protect the state and status CORBA attribute with the device monitor
// Add the "TgLibVers" string as a #define in tango_config.h
//
// Revision 2.4 2002/08/12 15:06:53 taurel
// Several big fixes and changes
// - Remove HP-UX specific code
// - Fix bug in polling alogorithm which cause the thread to enter an infinite
// loop (pollthread.cpp)
// - For bug for Win32 device when trying to set attribute config
// (attribute.cpp)
//
// Revision 2.3 2002/07/02 15:22:24 taurel
// Miscellaneous small changes/bug fixes for Tango CPP release 2.1.0
// - classes reference documentation now generated using doxygen instead of doc++
// - A little file added to the library which summarizes version number.
// The RCS/CVS "ident" command will now tells you that release library x.y.z is composed
// by C++ client classes set release a.b and C++ server classes set release c.d
// - Fix incorrect field setting for DevFailed exception re-thrown from a CORBA exception
// - It's now not possible to poll the Init command
// - It's now possible to define a default class doc. per control system
// instance (using property)
// - The test done to check if attribute value has been set before it is
// returned to caller is done only if the attribute quality is set to VALID
// - The JTCInitialize object is now stored in the Util
// - Windows specific : The tango.h file now also include winsock.h
//
// Revision 2.2 2002/04/30 10:50:40 taurel
// Don't check alarm on attribute if attribute quality factor is INVALID
//
// Revision 2.1 2002/04/29 12:24:03 taurel
// Fix bug in attribute::set_value method and on the check against min and max value when writing attributes
//
// Revision 2.0 2002/04/09 14:45:09 taurel
// See Tango WEB pages for list of changes
//
// Revision 1.6 2001/10/08 09:03:11 taurel
// See tango WEB pages for list of changes
//
// Revision 1.5 2001/07/04 12:27:09 taurel
// New methods re_throw_exception(). Read_attributes supports AllAttr mnemonic A new add_attribute()method in DeviceImpl class New way to define attribute properties New pattern to prevent full re-compile For multi-classes DS, it is now possible to use the Util::get_device_by_name() method in device constructor Adding << operator ovebloading Fix devie CORBA ref. number when device constructor sends an excep.
//
// Revision 1.4 2001/05/04 09:28:12 taurel
// Fix bugs in DServer::restart() method and in Util::get_device_by_name() method
//
// Revision 1.3 2001/03/30 08:03:44 taurel
// Fix bugs in attributes. For linux, add signal_handler in its own thread, change the way to kill server. For all system, change DevRestart philosophy.
//
// Revision 1.2 2001/03/09 08:20:14 taurel
// Fix bug in the MultiClassAttribute::init_class_attribute() method. Also remove the DbErr_DeviceNotDefined define.
//
// Revision 1.1.1.1 2001/02/27 08:46:20 taurel
// Imported sources
//
// Revision 1.3 2000/04/13 10:40:40 taurel
// Added attribute support
//
//=============================================================================
#ifndef _CLASS_ATTRIBUTE_H
#define _CLASS_ATTRIBUTE_H
#include <tango.h>
//#include <attrdesc.h>
#include <functional>
namespace Tango
{
//=============================================================================
//
// The AttrProperty class
//
//
// description : This class is used to store a pair of attribute name,
// attribute value. Both name and value are stored as
// string
//
//=============================================================================
class AttrProperty
{
public:
AttrProperty(const char *name,const char *value);
AttrProperty(string &name,string &value);
AttrProperty(const char *name,long value);
AttrProperty(const char *name,string &value);
~AttrProperty() {};
string &get_value() {return attr_value;}
long get_lg_value() {return attr_lg;}
string &get_name() {return attr_name;}
void convert();
#ifndef TANGO_HAS_LOG4TANGO
friend ostream &operator<<(ostream &,const AttrProperty &);
#endif
private:
string attr_name;
string attr_value;
long attr_lg;
};
//=============================================================================
//
// The MultiClassAttribute class
//
//
// description : This class is a holder for all the ClassAttribute
// instance. There is one instance of this class for each
// Tango device pattern implementation. This instance is
// stored in the DeviceClass object of the pattern
//
//=============================================================================
class MultiClassAttribute
{
public:
MultiClassAttribute();
~MultiClassAttribute();
void init_class_attribute(string &class_name,long base = 0);
vector<Tango::Attr *> &get_attr_list() {return attr_list;}
Attr &get_attr(string &attr_name);
void remove_attr(string &,const string &);
protected:
vector<Tango::Attr *> attr_list;
};
//=============================================================================
//
// A binary function object
//
//
// description : This binary function object is used by the find_if
// std C++ find_if algorithm. It checks if the
// ClassAttribute object passed as argument (A1) stored
// all the properties for the atribute name passed as
// second argument (A2).
// This function object is a predicate and therefore
// returns a boolean (R)
//
//=============================================================================
template <class A1, class A2, class R>
struct WantedClassAttr : public binary_function<A1,A2,R>
{
R operator() (A1 att,A2 name_str) const
{
return att->get_name() == name_str;
}
};
} // End of Tango namespace
#endif // _CLASS_ATTRIBUTE_H
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