Grouping Operations into Tasks in C++

In Authorization Manager, a task is a high-level action that users of an application need to complete. Tasks are made up of operations, which are low-level functions and methods of the application. A task is then assigned to those roles that must perform that task. A task is represented by an IAzTask object. For more information about operations and tasks, see Operations and Tasks.

The following example shows how to group operations to create a task. The example assumes that there is an existing XML policy store named MyStore.xml in the root directory of drive C, that this store contains an application named Expense, and that this application contains operations defined in the topic Defining Operations in C++.


#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0502
#endif
#pragma comment(lib, "duser.lib")

#include <windows.h>
#include <stdio.h>
#include <azroles.h>
#include <objbase.h>

void main(void){
    IAzAuthorizationStore* pStore = NULL;
    IAzApplication* pApp = NULL;
    IAzTask* pTask = NULL;
    HRESULT hr;
    void MyHandleError(char *s);
    BSTR storeName = NULL;
    BSTR appName = NULL;
    BSTR taskName = NULL;
    BSTR opName = NULL;
    
    //  Initialize COM.
    hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not initialize COM.");

    //  Create the AzAuthorizationStore object.
    hr = CoCreateInstance(
   /*"b2bcff59-a757-4b0b-a1bc-ea69981da69e"*/
         __uuidof(AzAuthorizationStore),
         NULL,
         CLSCTX_ALL,
   /*"edbd9ca9-9b82-4f6a-9e8b-98301e450f14"*/
         __uuidof(IAzAuthorizationStore),
         (void**)&pStore);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not create AzAuthorizationStore object.");
    
    //  Create null VARIANT for parameters.
    VARIANT myVar; 
    VariantInit(&myVar);

    //  Allocate a string for the name of the store.
    if(!(storeName = SysAllocString(L"msxml://c:\\MyStore.xml")))
        MyHandleError("Could not allocate string.");
    
    //  Initialize the store.
    hr = pStore->Initialize(AZ_AZSTORE_FLAG_MANAGE_STORE_ONLY,
  storeName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not initialize store.");

    //  Create an application object.
    if (!(appName = SysAllocString(L"Expense")))
        MyHandleError("Could not allocate application name string.");
    hr = pStore->OpenApplication(appName, myVar, &pApp);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not open application.");

    //  Create a task object.
    if (!(taskName = SysAllocString(L"Submit Expense")))
        MyHandleError("Could not allocate task name string.");
    hr = pApp->CreateTask(taskName, myVar, &pTask);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not create task.");

    //  Add operations to the task.
    if (!(opName = SysAllocString(L"RetrieveForm")))
        MyHandleError("Could not allocate operation name string.");
    hr = pTask->AddOperation(opName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not add 1st operation to the task.");
    SysFreeString(opName);

    if (!(opName = SysAllocString(L"EnqueRequest")))
        MyHandleError("Could not allocate operation name string.");
    hr = pTask->AddOperation(opName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not add 2nd operation to the task.");
    SysFreeString(opName);

    if (!(opName = SysAllocString(L"UseFormControl")))
        MyHandleError("Could not allocate operation name string.");
    hr = pTask->AddOperation(opName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not add 3rd operation to the task.");
    SysFreeString(opName);

    //  Save information to the store.
    hr = pTask->Submit(0, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not save task data to the store.");

    //  Clean up resources.
    pStore->Release();
    pApp->Release();
    pTask->Release();
    SysFreeString(storeName);
    SysFreeString(appName);
    VariantClear(&myVar);
    CoUninitialize();
}

void MyHandleError(char *s)
{
    printf("An error occurred in running the program.\n");
    printf("%s\n",s);
    printf("Error number %x\n.",GetLastError());
    printf("Program terminating.\n");
    exit(1);
}


 

 

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