c++ and corba communication

Question

vishy_85 0 Newbie Poster

15 Years Ago

hello all ,
i have my idl defined as follows :

#ifndef schedule_Mgmt_idl
#define schedule_Mgmt_idl
 
module schedule_Mgmt
{
   
   //*************************** Structures *******************************
 
   struct planData {
                      string planName;
                      string planDescription;
                      string scriptExec;
                      string startDate;
                      string startTime;
                      string stopDate;
                      string stopTime;
                      string delayInt;
                      boolean repeatDelay;
                      boolean notOnWeekend;
                      boolean validity;
                      string tempTime;
                      string tempDate;    
                   };
 

   typedef sequence <planData> planList;
 
   //****************************** Exceptions *****************************
 
   exception alreadyExists         {string reason;};
   exception unknownErr            {string reason;};
   exception doNotExist            {string reason;};
   exception communicationFailure  {string reason;};
   exception processingFailure     {string reason;};
 
   //****************************** Interfaces *****************************
 
   interface config
   {
 
        planList getPlandata() raises (doNotExist,unknownErr);
 
        boolean createPlan(in planData newPlanData)
                           raises (alreadyExists, unknownErr);
 
        boolean modifyPlan(in string schedPlanName,
                           in planData modifyPlanData)
                           raises (unknownErr);
 
        boolean removePlan(in string schedPlanName)
                           raises (unknownErr);
                  
        boolean activatePlan(in string schedPlanName)
                             raises (unknownErr);
                    
        boolean deactivatePlan(in string schedPlanName)
                               raises (unknownErr);
    };
 
    interface Listener
    {
        void message(in string msg);
    };
 
    interface MessageServer
    {
        void register(in Listener lt);
        void unregister(in string lt);
  
    };
 
};
   
#endif

and my getPlanData.cpp file as follows :

#include <getPlanData.h>
#include <writeLog.h>

schedule_Mgmt::planList getPlanData()
{
  try
  {
     
     LogItf::setProcessName("Schedule_Mgmt");
     schedule_Mgmt::planList singleIMEIarr1;

     // Initialise Session using Session Pool
     Session::initSessionPool("BOSS", "E_SESSION_EIR", 2,  false, true);

     // Acquire session while initializing the Session.
     Session * schedSession1 ;
     schedSession1 = new  Session();

     DbSchedule * objschedule ;
        
     objschedule = new DbSchedule(schedSession1, "Schedule_mgmt");
    
     objschedule->StartTransaction(10);
     
     objschedule->GetTableDescription();
    
 
      struct singleIMEI 
     {
      
         string planName;
         string planDescription;
         string scriptExec;
         string startDate;
         string startTime;
         string stopDate;
         string stopTime;
         string delayInterval;
         bool repeatDelay;
         bool notOnWeekend;
         bool activate;
         string tempTime;
         string tempDate;    
     }  singleIMEIarr[1000];  //VECTOR IMPLEMENTATION PENDING
     
    
      int j = 1;
      objschedule->StartFetch();
      do
      {
          
          for (int i=1; (i <= objschedule->GetMaxColumns()); i++)
          {
               //cout << endl <<"venkat" << endl;
               //cout << objschedule->GetColumnName(i) << " = " << objschedule->GetColumnValue(i) << ", " ;
               
               if (i == 1)
               {
                    singleIMEIarr[j].planName=objschedule->GetColumnValue(i);
               }
               else if (i == 2)
               {    
                    singleIMEIarr[j].planDescription=objschedule->GetColumnValue(i);
               }                   
               else if (i == 3)
               {    
                    singleIMEIarr[j].scriptExec=objschedule->GetColumnValue(i);
               }
               else if (i == 4)
               {    
                    singleIMEIarr[j].startDate=objschedule->GetColumnValue(i);
               }
               else if (i == 5)
               {    
                    singleIMEIarr[j].startTime=objschedule->GetColumnValue(i);
               }
               else if (i == 6)
               {    
                    singleIMEIarr[j].stopDate=objschedule->GetColumnValue(i);
               }
               else if (i == 7)
               {    
                    singleIMEIarr[j].stopTime=objschedule->GetColumnValue(i);
               }
               else if (i == 8)
               {    
                    singleIMEIarr[j].delayInterval=objschedule->GetColumnValue(i);
               }
               else if (i == 9)
               {    
                    bool output_repeat;
                    string repeat_val = objschedule->GetColumnValue(i);
                    if (strcmp (repeat_val.c_str(),"1") == 0)
                    {
                      output_repeat = true;
                    }
                    else
                    {
                      output_repeat = false;
                    }
                    singleIMEIarr[j].repeatDelay= output_repeat;
               }
               else if (i == 10)
               {    
                    bool output_notOnWeekend;
                    string notOnWeekend_val = objschedule->GetColumnValue(i);
                    if (strcmp (notOnWeekend_val.c_str(),"1") == 0)
                    {
                      output_notOnWeekend = true;
                    }
                    else
                    {
                      output_notOnWeekend = false;
                    }
                    singleIMEIarr[j].notOnWeekend= output_notOnWeekend;

               }
               else if (i == 11)
               {
                    bool output_activate;
                    string activate_val = objschedule->GetColumnValue(i);
                    if (strcmp (activate_val.c_str(),"1") == 0)
                    {
                      output_activate = true;
                    }
                    else
                    {
                      output_activate = false;
                    }
                    singleIMEIarr[j].activate= output_activate;

               }

               else if (i == 12)
               {    
                    singleIMEIarr[j].tempTime=objschedule->GetColumnValue(i);
               }
               else if (i == 13)
               {    
                    singleIMEIarr[j].tempDate=objschedule->GetColumnValue(i);
               }     
            }
          cout << singleIMEIarr[j].planName << "," << singleIMEIarr[j].planDescription << "," << singleIMEIarr[j].scriptExec << "," << singleIMEIarr[j].startDate << "," << singleIMEIarr[j].startTime << "," << singleIMEIarr[j].stopDate << "," << singleIMEIarr[j].stopTime << "," << singleIMEIarr[j].delayInterval << "," << singleIMEIarr[j].repeatDelay << "," << singleIMEIarr[j].notOnWeekend << "," << singleIMEIarr[j].activate << "," << singleIMEIarr[j].tempTime << "," << singleIMEIarr[j].tempDate;
          j = j + 1;  
          cout << endl ;
      } while (objschedule->FetchNextTuple() == true) ;
     
 
     cout << "PLANNAME,PLANDESCRIPTION,SCRIPTEXEC,STARTDATE,STARTIME,STOPDATE,STOPTIME,REPEATDELAY,NOTONWEEKEND,ACTIVATE" <<  "\n";
     
     for (int k=1; k <= 5; k++)
     {
         cout << singleIMEIarr[k].planName << "," << singleIMEIarr[k].planDescription << "," << singleIMEIarr[k].scriptExec << "," << singleIMEIarr[k].startDate << "," << singleIMEIarr[k].startTime << "," << singleIMEIarr[k].stopDate << "," << singleIMEIarr[k].stopTime << "," << singleIMEIarr[k].delayInterval << singleIMEIarr[k].repeatDelay << "," << singleIMEIarr[k].notOnWeekend << "," << singleIMEIarr[k].activate << "," << singleIMEIarr[k].tempTime << "," << singleIMEIarr[k].tempDate << "\n";
     }
 
     // delete schedSession1 ;
     
     // Deletes Session using Session Pool
     SessionPool::deletePool();
     
     return singleIMEIarr[1000];
     
     char info[50] = "PLAN DISPLAYED";
     writeLog(NULL,info);
     
  }
  catch(...)
  {
     char error[50] = "PLAN CANNOT BE DISPLAYED";
     writeLog(NULL,error);
     cout<<"Unknown Error";
     throw;
  }       
}

i get the following error :
Error 339: "getPlanData.cpp", line 180 # Return type 'struct singleIMEI' does
not match expected return type 'class planList'
return singleIMEIarr[1000];
^^^^^^^^^^^^^^^^^^^
i need to return the singleIMEIarr with the return type "planList",
i have tried type casting , but nothing seems to work ,
any suggestions would be of great help
thank you

c++

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10 Replies
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Latest Post 15 Years Ago Latest Post by vishy_85

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Ancient Dragon 5,243 Achieved Level 70

15 Years Ago

Your compiler is correct. If you want that function to return something else then change the return type on line 5 of the *.cpp file, and also in the class declaration. Functions can not return arrays like you are trying to do in line 162 of the code you posted.

Other problems:
line 162. that is a return line. The code following it will never get executed.

Ancient Dragon 5,243 Achieved Level 70

15 Years Ago

>>return singleIMEIarr[1000];

That line is illegal.

>>but is there no way of converting (type casting) it to the class type ?
Why didn't you just use schedule_Mgmt::plainData structure instead of creating yet another structure with identical contents (starting on line 29 of *.cpp file)?

Ancient Dragon 5,243 Achieved Level 70

15 Years Ago

Make it a pointer

schedule_Mgmt::plainData* singleIMEIarr = new schedule_Mgmt::plainData[1000];

...
...
return singleIMEIarr;

And don't forget to delete[] that pointer in the receiving function.

Another alternative is to make it a vector passed in by reference so that getPlanData() can populate the vector

void  getPlanData(vector<schedule_Mgmt::planList>& list)
{
     

}

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vishy_85 0 Newbie Poster · Answer 1 · 2009-04-07T18:05:23+00:00

thank you , but is there no way of converting (type casting) it to the class type ?

vishy_85 0 Newbie Poster · Answer 2 · 2009-04-07T18:20:07+00:00

im trying get all the data from oracle database , store it in an array of structures and return the contents of the array.

>>Why didn't you just use schedule_Mgmt::plainData structure instead of creating yet another structure with identical contents (starting on line 29 of *.cpp file)?
i havent tried it , will give it a shot , is there any other workaround for this problem that u can think of ?

vishy_85 0 Newbie Poster · Answer 3 · 2009-04-07T18:48:16+00:00

im using HP-UX .vector implementation isnt possible coz a header file <stdin.h> (or <stdint.h> not sure ) is not available. for some reason hp did not include it. thats y im trying to use array of structures.
>>schedule_Mgmt::planData* singleIMEIarr = new schedule_Mgmt::planData[1000];
it aint working
the function is of planList type (sequence defined in the corba idl)
i need to return the array in "planList" type,

Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster · Answer 4 · 2009-04-07T18:53:52+00:00

Oh I see planList is a typedef. Well then just replace it

planList* singleIMEIarr = new planList[1000];

...
...
return singleIMEIarr;

Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster · Answer 5 · 2009-04-07T18:58:12+00:00

im using HP-UX .vector implementation isnt possible coz a header file <stdin.h> (or <stdint.h> not sure ) is not available.,

vector is not declared in either of those header files. Its in <vector> header file, which will be supplied by every c++ compiler in the world except maybe some embedded compilers. So I think you need to search your compiler's include directory and I'll bet my boots it will contain a header file named vector (and without a .h extension)

#include <vector>
// other c++ code here

vishy_85 0 Newbie Poster · Answer 6 · 2009-04-07T19:37:55+00:00

>>planList* singleIMEIarr = new planList[1000];

thank you . thanks a ton man , that worked :)

vishy_85 0 Newbie Poster · Answer 7 · 2009-04-08T14:45:55+00:00

oops im sorry , i actually made that change in getPlanData.cpp and compiled another .cpp file with the same name in another path.

>>planList* singleIMEIarr = new planList[1000];
it did not work

#include <getPlanData.h>
#include <writeLog.h>

schedule_Mgmt::planList getPlanData()
{
  try
  {
     
     LogItf::setProcessName("Schedule_Mgmt");
     //schedule_Mgmt::planList singleIMEIarr1;

     // Initialise Session using Session Pool
     Session::initSessionPool("BOSS", "E_SESSION_EIR", 2,  false, true);

     // Acquire session while initializing the Session.
     Session * schedSession1 ;
     schedSession1 = new  Session();

     DbSchedule * objschedule ;
        
     objschedule = new DbSchedule(schedSession1, "Schedule_mgmt");
    
     objschedule->StartTransaction(10);
     
     objschedule->GetTableDescription();
    
 
      schedule_Mgmt::planList singleIMEI 
     {
      
         string planName;
         string planDescription;
         string scriptExec;
         string startDate;
         string startTime;
         string stopDate;
         string stopTime;
         string delayInterval;
         bool repeatDelay;
         bool notOnWeekend;
         bool activate;
         string tempTime;
         string tempDate;    
     };
     schedule_Mgmt::planList* singleIMEIarr = new schedule_Mgmt::planList[1000];
  //VECTOR IMPLEMENTATION PENDING
     
    
      int j = 1;
      objschedule->StartFetch();
      do
      {
          
          for (int i=1; (i <= objschedule->GetMaxColumns()); i++)
          {
               //cout << endl <<"venkat" << endl;
               //cout << objschedule->GetColumnName(i) << " = " << objschedule->GetColumnValue(i) << ", " ;
               
               if (i == 1)
               {
                    singleIMEIarr[j].planName=objschedule->GetColumnValue(i);
               }
               else if (i == 2)
               {    
                    singleIMEIarr[j].planDescription=objschedule->GetColumnValue(i);
               }                   
               else if (i == 3)
               {    
                    singleIMEIarr[j].scriptExec=objschedule->GetColumnValue(i);
               }
               else if (i == 4)
               {    
                    singleIMEIarr[j].startDate=objschedule->GetColumnValue(i);
               }
               else if (i == 5)
               {    
                    singleIMEIarr[j].startTime=objschedule->GetColumnValue(i);
               }
               else if (i == 6)
               {    
                    singleIMEIarr[j].stopDate=objschedule->GetColumnValue(i);
               }
               else if (i == 7)
               {    
                    singleIMEIarr[j].stopTime=objschedule->GetColumnValue(i);
               }
               else if (i == 8)
               {    
                    singleIMEIarr[j].delayInterval=objschedule->GetColumnValue(i);
               }
               else if (i == 9)
               {    
                    bool output_repeat;
                    string repeat_val = objschedule->GetColumnValue(i);
                    if (strcmp (repeat_val.c_str(),"1") == 0)
                    {
                      output_repeat = true;
                    }
                    else
                    {
                      output_repeat = false;
                    }
                    singleIMEIarr[j].repeatDelay= output_repeat;
               }
               else if (i == 10)
               {    
                    bool output_notOnWeekend;
                    string notOnWeekend_val = objschedule->GetColumnValue(i);
                    if (strcmp (notOnWeekend_val.c_str(),"1") == 0)
                    {
                      output_notOnWeekend = true;
                    }
                    else
                    {
                      output_notOnWeekend = false;
                    }
                    singleIMEIarr[j].notOnWeekend= output_notOnWeekend;

               }
               else if (i == 11)
               {
                    bool output_activate;
                    string activate_val = objschedule->GetColumnValue(i);
                    if (strcmp (activate_val.c_str(),"1") == 0)
                    {
                      output_activate = true;
                    }
                    else
                    {
                      output_activate = false;
                    }
                    singleIMEIarr[j].activate= output_activate;

               }

               else if (i == 12)
               {    
                    singleIMEIarr[j].tempTime=objschedule->GetColumnValue(i);
               }
               else if (i == 13)
               {    
                    singleIMEIarr[j].tempDate=objschedule->GetColumnValue(i);
               }     
            }
          cout << singleIMEIarr[j].planName << "," << singleIMEIarr[j].planDescription << "," << singleIMEIarr[j].scriptExec << "," << singleIMEIarr[j].startDate << "," << singleIMEIarr[j].startTime << "," << singleIMEIarr[j].stopDate << "," << singleIMEIarr[j].stopTime << "," << singleIMEIarr[j].delayInterval << "," << singleIMEIarr[j].repeatDelay << "," << singleIMEIarr[j].notOnWeekend << "," << singleIMEIarr[j].activate << "," << singleIMEIarr[j].tempTime << "," << singleIMEIarr[j].tempDate;
          j = j + 1;  
          cout << endl ;
      } while (objschedule->FetchNextTuple() == true) ;
     
 
     cout << "PLANNAME,PLANDESCRIPTION,SCRIPTEXEC,STARTDATE,STARTIME,STOPDATE,STOPTIME,REPEATDELAY,NOTONWEEKEND,ACTIVATE" <<  "\n";
     
     for (int k=1; k <= 5; k++)
     {
         cout << singleIMEIarr[k].planName << "," << singleIMEIarr[k].planDescription << "," << singleIMEIarr[k].scriptExec << "," << singleIMEIarr[k].startDate << "," << singleIMEIarr[k].startTime << "," << singleIMEIarr[k].stopDate << "," << singleIMEIarr[k].stopTime << "," << singleIMEIarr[k].delayInterval << singleIMEIarr[k].repeatDelay << "," << singleIMEIarr[k].notOnWeekend << "," << singleIMEIarr[k].activate << "," << singleIMEIarr[k].tempTime << "," << singleIMEIarr[k].tempDate << "\n";
     }
 
     // delete schedSession1 ;
     
     // Deletes Session using Session Pool
     SessionPool::deletePool();
     
     return *singleIMEIarr;
     
     char info[50] = "PLAN DISPLAYED";
     writeLog(NULL,info);
     
  }
  catch(...)
  {
     char error[50] = "PLAN CANNOT BE DISPLAYED";
     writeLog(NULL,error);
     cout<<"Unknown Error";
     throw;
  }       
}

Error 20: "getPlanData.cpp", line 29 # ';' expected before '{'.
{
^
Error 187: "getPlanData.cpp", line 59 # Referenced object 'planName' is not a
member of class planList ["./schedule_MgmtC.h", line 216].
singleIMEIarr[j].planName=objschedule->GetColumnValue(i

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