/// <summary>
/// Initializes the object with default values.
/// </summary>
public Subscription(Cache cache, Server server, SubscriptionState state)
{
if (server == null) throw new ArgumentNullException("server");
if (state == null) throw new ArgumentNullException("state");
m_cache = cache;
m_server = server;
m_state = new SubscriptionState();
m_state.Active = false;
// set the initial state.
ModifyState((int)StateMask.All, state);
}
/// <summary>
/// Initializes the object with its item id and device.
/// </summary>
public SubscriptionItem(string itemID, Cache cache)
{
if (itemID == null) throw new ArgumentNullException("itemID");
if (cache == null) throw new ArgumentNullException("cache");
m_itemID = itemID;
m_cache = cache;
m_euType = (euType)m_cache.ReadProperty(m_itemID, Property.EUTYPE);
if (m_euType == euType.analog)
{
m_maxValue = (double)m_cache.ReadProperty(m_itemID, Property.HIGHEU);
m_minValue = (double)m_cache.ReadProperty(m_itemID, Property.LOWEU);
}
}
/// <summary>
/// Initializes the devices accessed by the server. Creates the device simulator by default.
/// </summary>
protected virtual void InitializesDevices(Cache cache)
{
lock (typeof(Server))
{
if (TheDevice == null)
{
TheDevice = new Device();
TheDevice.Initialize(cache);
}
}
}
/// <summary>
/// Initializes a server instance after it is created.
/// </summary>
public virtual void Initialize(bool supportsCOM)
{
lock (this)
{
// initialize the cache.
if (TheCache == null)
{
TheCache = new Cache(supportsCOM);
TheCache.Initialize();
}
m_cache = TheCache;
m_cache.AddRef();
// get the default locale.
SetLocale(m_cache.SupportedLocales[0]);
// initialize all devices (sub-classes may define custom devices).
InitializesDevices(m_cache);
}
}
