// Token: 0x06000046 RID: 70 RVA: 0x000033F4 File Offset: 0x000023F4
public virtual ISubscription CreateSubscription(SubscriptionState state)
{
if (state == null)
{
throw new ArgumentNullException("state");
}
if (this.m_server == null)
{
throw new NotConnectedException();
}
ISubscription subscription = ((IServer)this.m_server).CreateSubscription(state);
subscription.SetResultFilters(this.m_filters);
SubscriptionCollection subscriptionCollection = new SubscriptionCollection();
if (this.m_subscriptions != null)
{
foreach (object obj in this.m_subscriptions)
{
Subscription value = (Subscription)obj;
subscriptionCollection.Add(value);
}
}
subscriptionCollection.Add(this.CreateSubscription(subscription));
this.m_subscriptions = subscriptionCollection;
return(this.m_subscriptions[this.m_subscriptions.Count - 1]);
}
// Token: 0x06000048 RID: 72 RVA: 0x000034D4 File Offset: 0x000024D4
public virtual void CancelSubscription(ISubscription subscription)
{
if (subscription == null)
{
throw new ArgumentNullException("subscription");
}
if (this.m_server == null)
{
throw new NotConnectedException();
}
if (!typeof(Subscription).IsInstanceOfType(subscription))
{
throw new ArgumentException("Incorrect object type.", "subscription");
}
if (!this.Equals(((Subscription)subscription).Server))
{
throw new ArgumentException("Unknown subscription.", "subscription");
}
SubscriptionCollection subscriptionCollection = new SubscriptionCollection();
foreach (object obj in this.m_subscriptions)
{
Subscription subscription2 = (Subscription)obj;
if (!subscription.Equals(subscription2))
{
subscriptionCollection.Add(subscription2);
}
}
if (subscriptionCollection.Count == this.m_subscriptions.Count)
{
throw new ArgumentException("Subscription not found.", "subscription");
}
this.m_subscriptions = subscriptionCollection;
((IServer)this.m_server).CancelSubscription(((Subscription)subscription).m_subscription);
}
//======================================================================
// CreateSubscription
/// <summary>
/// Creates a new subscription.
/// </summary>
/// <param name="state">The initial state of the subscription.</param>
/// <returns>The new subscription object.</returns>
public virtual ISubscription CreateSubscription(SubscriptionState state)
{
if (state == null)
{
throw new ArgumentNullException("state");
}
if (m_server == null)
{
throw new NotConnectedException();
}
// create subscription on server.
ISubscription subscription = ((IServer)m_server).CreateSubscription(state);
// set filters.
subscription.SetResultFilters(m_filters);
// append new subscription to existing list.
SubscriptionCollection subscriptions = new SubscriptionCollection();
if (m_subscriptions != null)
{
foreach (Subscription value in m_subscriptions)
{
subscriptions.Add(value);
}
}
subscriptions.Add(CreateSubscription(subscription));
// save new subscription list.
m_subscriptions = subscriptions;
// return new subscription.
return(m_subscriptions[m_subscriptions.Count - 1]);
}
// Token: 0x0600003C RID: 60 RVA: 0x00003160 File Offset: 0x00002160
public override object Clone()
{
Server server = (Server)base.Clone();
if (server.m_subscriptions != null)
{
SubscriptionCollection subscriptionCollection = new SubscriptionCollection();
foreach (object obj in server.m_subscriptions)
{
Subscription subscription = (Subscription)obj;
subscriptionCollection.Add(subscription.Clone());
}
server.m_subscriptions = subscriptionCollection;
}
return(server);
}
//======================================================================
// CancelSubscription
/// <summary>
/// Cancels a subscription and releases all resources allocated for it.
/// </summary>
/// <param name="subscription">The subscription to cancel.</param>
public virtual void CancelSubscription(ISubscription subscription)
{
if (subscription == null)
{
throw new ArgumentNullException("subscription");
}
if (m_server == null)
{
throw new NotConnectedException();
}
// validate argument.
if (!typeof(Opc.Da.Subscription).IsInstanceOfType(subscription))
{
throw new ArgumentException("Incorrect object type.", "subscription");
}
if (!this.Equals(((Opc.Da.Subscription)subscription).Server))
{
throw new ArgumentException("Unknown subscription.", "subscription");
}
// search for subscription in list of subscriptions.
SubscriptionCollection subscriptions = new SubscriptionCollection();
foreach (Subscription current in m_subscriptions)
{
if (!subscription.Equals(current))
{
subscriptions.Add(current);
continue;
}
}
// check if subscription was not found.
if (subscriptions.Count == m_subscriptions.Count)
{
throw new ArgumentException("Subscription not found.", "subscription");
}
// remove subscription from list of subscriptions.
m_subscriptions = subscriptions;
// cancel subscription on server.
((IServer)m_server).CancelSubscription(((Subscription)subscription).m_subscription);
}
//======================================================================
// ICloneable
/// <summary>
/// Returns an unconnected copy of the server with the same URL.
/// </summary>
public override object Clone()
{
// clone the base object.
Server clone = (Server)base.Clone();
// clone subscriptions.
if (clone.m_subscriptions != null)
{
SubscriptionCollection subscriptions = new SubscriptionCollection();
foreach (Subscription subscription in clone.m_subscriptions)
{
subscriptions.Add(subscription.Clone());
}
clone.m_subscriptions = subscriptions;
}
// return clone.
return(clone);
}
// Token: 0x0600003F RID: 63 RVA: 0x000031F4 File Offset: 0x000021F4
public override void Connect(URL url, ConnectData connectData)
{
base.Connect(url, connectData);
if (this.m_subscriptions == null)
{
return;
}
SubscriptionCollection subscriptionCollection = new SubscriptionCollection();
foreach (object obj in this.m_subscriptions)
{
Subscription template = (Subscription)obj;
try
{
subscriptionCollection.Add(this.EstablishSubscription(template));
}
catch
{
}
}
this.m_subscriptions = subscriptionCollection;
}
//======================================================================
// Connection Management
/// <summary>
/// Connects to the server with the specified URL and credentials.
/// </summary>
public override void Connect(URL url, ConnectData connectData)
{
// connect to server.
base.Connect(url, connectData);
// all done if no subscriptions.
if (m_subscriptions == null)
{
return;
}
// create subscriptions (should only happen if server has been deserialized).
SubscriptionCollection subscriptions = new SubscriptionCollection();
foreach (Subscription template in m_subscriptions)
{
// create subscription for template.
try { subscriptions.Add(EstablishSubscription(template)); }
catch {}
}
// save new set of subscriptions.
m_subscriptions = subscriptions;
}