Reading all users from people picker control

Scenario:
People picker control is great as it allows you to choose multiple users from authentication store. Also sometime we need to read all the users entered in people picker control.

Code:

protected PeopleEditor userPicker;

  private SPUser[] ProcessUsers(SPWeb web)
    {
        PickerEntity entity;
        if (!this.userPicker.Visible)
        {
            return new SPUser[] { web.CurrentUser };
        }
        int count = this.userPicker.ResolvedEntities.Count;
        ArrayList list = new ArrayList();
        SPUser[] userArray = new SPUser[count];
        for (int i = 0; i < count; i++)
        {
            entity = (PickerEntity) this.userPicker.ResolvedEntities[i];
            if (web.SiteUsers.GetByLoginNoThrow(entity.Key) == null)
            {
                list.Add(entity);
            }
        }
        if (list.Count > 0)
        {
            SPUserInfo[] addUsersInfo = new SPUserInfo[list.Count];
            for (int k = 0; k < list.Count; k++)
            {
                entity = (PickerEntity) list[k];
                SPUserInfo info = new SPUserInfo();
                info.LoginName = entity.Key;
                info.Email = (string) entity.EntityData[PeopleEditor.PeopleInfo.Email];
                info.Name = entity.DisplayText;
                info.Notes = string.Empty;
                addUsersInfo[k] = info;
            }
            web.SiteUsers.AddCollection(addUsersInfo);
        }
        for (int j = 0; j < count; j++)
        {
            entity = (PickerEntity) this.userPicker.ResolvedEntities[j];
            userArray[j] = web.SiteUsers[entity.Key];
        }
        return userArray;
    }