bool ConstMap_ContainsKey(CONSTMAP_HANDLE handle, const char* key )
{
bool keyExists = false;
if (handle == NULL)
{
/*Codes_SRS_CONSTMAP_17_024: [If parameter handle or key are NULL then ConstMap_ContainsKey shall return false.]*/
LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG);
}
else
{
if (key == NULL)
{
LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG);
}
else
{
/*Codes_SRS_CONSTMAP_17_025: [Otherwise if a key exists then ConstMap_ContainsKey shall return true.]*/
MAP_RESULT mapResult = Map_ContainsKey(((CONSTMAP_HANDLE_DATA *)handle)->map, key, &keyExists);
if (mapResult != MAP_OK)
{
/*Codes_SRS_CONSTMAP_17_026: [If a key doesn't exist, then ConstMap_ContainsKey shall return false.]*/
keyExists = false;
LOG_CONSTMAP_ERROR(ConstMap_ErrorConvert(mapResult));
}
}
}
return keyExists;
}
const char* IoTHubMessage_GetProperty(IOTHUB_MESSAGE_HANDLE msg_handle, const char* key)
{
const char* result;
if (msg_handle == NULL || key == NULL)
{
LogError("invalid parameter (NULL) to IoTHubMessage_GetProperty iotHubMessageHandle=%p, key=%p", msg_handle, key);
result = NULL;
}
else
{
bool key_exists = false;
// The return value is not neccessary, just check the key_exist variable
if ((Map_ContainsKey(msg_handle->properties, key, &key_exists) == MAP_OK) && key_exists)
{
result = Map_GetValueFromKey(msg_handle->properties, key);
}
else
{
result = NULL;
}
}
return result;
}
