/**
* Retrieve all users
*/
public Dictionary <int, User> getAllUser()
{
// Get all users from the identity map
Dictionary <int, User> users = UserIdentityMap.getInstance().findAll();
// Get all users in the database
Dictionary <int, Object[]> result = tdgUser.getAll();
// If it's empty, simply return those from the identity map
if (result == null)
{
return(users);
}
// Loop through each of the result:
foreach (KeyValuePair <int, Object[]> record in result)
{
// The user is not in the identity map. Create an instance, add it to identity map and to the return variable
if (!users.ContainsKey(record.Key))
{
User user = UserCatalog.getInstance().makeNewUser((int)record.Key, (String)record.Value[1], (String)record.Value[2], (String)record.Value[3]);
UserIdentityMap.getInstance().addTo(user);
users.Add(user.userID, user);
}
}
return(users);
}
/**
* Retrieve a user given its ID
*/
public User getUser(int userID)
{
User user = UserIdentityMap.getInstance().find(userID);
Object[] result = null;
// If not found in user identity map, try to retrieve from the DB
if (user == null)
{
result = tdgUser.get(userID);
// If the TDG doesn't have it, then it doesn't exist
if (result == null)
{
return(null);
}
else
{
// We got the user from the TDG who got it from the DB and now the mapper must add it to the UserIdentityMap
user = new User((int)result[0], (String)result[1], (String)result[2], (String)result[3]);
UserIdentityMap.getInstance().addTo(user);
return(user);
}
}
return(null); //so all code paths return a value
}
/**
* Initialize the list of users, used for instantiating console
* */
public void initializeDirectory()
{
// Get all users in the database
Dictionary <int, Object[]> result = tdgUser.getAll();
//Loop through each of the result:
foreach (KeyValuePair <int, Object[]> record in result)
{
User user = UserCatalog.getInstance().makeNewUser((int)record.Key, (String)record.Value[1], (String)record.Value[2], (String)record.Value[3]);
UserIdentityMap.getInstance().addTo(user);
}
}
