+/*******************************************************************************
+################################################################################
+# Copyright (c) [2020-2022] [HCL Technologies Ltd.] #
+# #
+# Licensed under the Apache License, Version 2.0 (the "License"); #
+# you may not use this file except in compliance with the License. #
+# You may obtain a copy of the License at #
+# #
+# http://www.apache.org/licenses/LICENSE-2.0 #
+# #
+# Unless required by applicable law or agreed to in writing, software #
+# distributed under the License is distributed on an "AS IS" BASIS, #
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
+# See the License for the specific language governing permissions and #
+# limitations under the License. #
+################################################################################
+*******************************************************************************/
+
+#include <iostream>
+#include "Subject.hpp"
+#include "GlobalDefs.hpp"
+
+/* Constructor*/
+Subject::Subject() {
+ mMessage=NULL;
+}
+
+/* Default destructor*/
+Subject::~Subject() {
+
+}
+
+/**********************************************************************
+ Description : Register an Observer
+ Params[In] : Observer
+ Return : void
+**********************************************************************/
+void Subject::registerObserver(Observer *observer)
+{
+ mObserversList.push_back(observer);
+}
+
+/**********************************************************************
+ Description : Unregister an Observer
+ Params[In] : Observer
+ Return : void
+**********************************************************************/
+void Subject::unregisterObserver(Observer *observer)
+{
+ mObserversList.remove(observer);
+}
+
+/**********************************************************************
+ Description : Notify all observers on new message
+ Params[In] : void
+ Return : void
+**********************************************************************/
+void Subject::notifyObservers()
+{
+ std::list<Observer *>::iterator iterator = mObserversList.begin();
+ while (iterator != mObserversList.end())
+ {
+ (*iterator)->update(mMessage);
+ iterator++;
+ }
+}
+
+/**********************************************************************
+ Description : Accept a message
+ Params[In] : Message
+ Return : void
+**********************************************************************/
+void Subject::createMessage(char* message )
+{
+ mMessage = message;
+ notifyObservers();
+}
+
+
+/**********************************************************************
+ End of file
+**********************************************************************/