add default behavior for state and status

AttributeCombiner.cpp

@@ -1344,6 +1344,7 @@ void AttributeCombiner::add_dynamic_commands()
                 else {
                     if (attName == "States") {
                         READSCALAR<Tango::DevState, Tango::DevState>(attr, item, arl, Tango::UNKNOWN, Tango::DISABLE);
+                        comupteGobalState(attr);
                     } else {
                         READSCALAR<Tango::DevState, Tango::DevState>(attr, item, arl, Tango::UNKNOWN, Tango::UNKNOWN);
                     }
@@ -1720,6 +1721,49 @@ void AttributeCombiner::add_dynamic_commands()
         Tango::DeviceAttribute daWrite(attrToSave->refItem->attName.c_str(),dataForRef);
         self->write_attribute(daWrite);
     }
+    
+    void AttributeCombiner::comupteGobalState(Tango::Attribute &attr){
+        Tango::DevVarStateArray * states = attr.get_state_value();
+        Tango::DevState globalState = (*states)[0];
+        long size = attr.get_data_size();
+        string status = "";
+        for(long i = 0 ; i < size ; i++){
+            
+            status += deviceList[i] + ":" + Tango::DevStateName[(*states)[i]] + "\n";
+            globalState = getWorst(globalState,(*states)[i]);
+        }
+        
+        set_state(globalState);
+        set_status(status);
+    }
+    
+    Tango::DevState AttributeCombiner::getWorst(Tango::DevState &s1, Tango::DevState &s2) {
+        if (s1 == Tango::FAULT || s2 == Tango::FAULT) {
+            return Tango::FAULT;
+        }
+        if (s1 == Tango::UNKNOWN || s2 == Tango::UNKNOWN) {
+            return Tango::UNKNOWN;
+        }
+        if (s1 == Tango::ALARM || s2 == Tango::ALARM) {
+            return Tango::ALARM;
+        }
+        if (s1 == Tango::MOVING || s2 == Tango::MOVING) {
+            return Tango::MOVING;
+        }
+        if (s1 == Tango::STANDBY || s2 == Tango::STANDBY) {
+            return Tango::STANDBY;
+        }
+        if (s1 == Tango::ON && s2 == Tango::ON) {
+            return Tango::ON;
+        }else if (s1 == Tango::OFF && s2 == Tango::OFF) {
+            return Tango::OFF;
+        }else if (s1 == Tango::OPEN && s2 == Tango::OPEN) {
+            return Tango::OPEN;
+        }else if (s1 == Tango::CLOSE && s2 == Tango::CLOSE) {
+            return Tango::CLOSE;
+        }
+        return Tango::ALARM;
+    }
 // //--------------------------------------------------------
 // /**
 //  *	Command saveReference related method

AttributeCombiner.h

@@ -332,6 +332,9 @@ public:
         
         template <typename T>
         void saveAttribute(ATTITEM * attrToSave);
+        void comupteGobalState(Tango::Attribute &attr);
+        Tango::DevState getWorst(Tango::DevState &s1, Tango::DevState &s2);
+    
         
 /*----- PROTECTED REGION END -----*/	//	AttributeCombiner::Additional Method prototypes
 };