public AddressBookItemConnectionManager this[HttpConnection connection]
{
get
{
foreach(AddressBookItemConnectionManager manager in base.InnerList)
if (manager.Connection.Id == connection.Id)
return manager;
return null;
}
}
/// <summary>
/// Removes the connection from the list
/// </summary>
/// <param name="connection">The connection to remove</param>
/// <returns></returns>
public bool Remove(HttpConnection connection)
{
if (connection == null)
throw new ArgumentNullException("connection", "A null connection cannot be removed from the list.");
if (this.Contains(connection.Id))
base.InnerList.Remove(connection);
return true;
}
/// <summary>
/// Adds the connection to the list
/// </summary>
/// <param name="connection">The connection to add</param>
/// <returns></returns>
public bool Add(HttpConnection connection)
{
if (connection == null)
throw new ArgumentNullException("connection", "A null connection cannot be added to the list.");
if (this.Contains(connection.Id))
throw new Exception(string.Format("A connection already exists in the list with an id of {0}", connection.Id.ToString()));
base.InnerList.Add(connection);
return true;
}
/// <summary>
/// Initializes a new instance of the HttpConnectionEventArgs class
/// </summary>
/// <param name="connection">The connection responsible for the event</param>
public HttpConnectionEventArgs(HttpConnection connection) : base()
{
_connection = connection;
}
/// <summary>
/// Creates a connection manager for the address book item, and connects the connection to the remote host specified by the address book item
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnConnectSessionForAddressBookItem(object sender, BackgroundThreadStartEventArgs e)
{
// retrieve the address book item that is requiring attention
AddressBookItem item = (AddressBookItem)e.Args[0];
bool disconnectFirst = (bool)e.Args[1];
bool verboseSession = (bool)e.Args[2];
bool autoRecv = (bool)e.Args[3];
try
{
/*
* if we are supposed to disconnect the current connection first
* */
if (disconnectFirst)
{
lock(_sessionManagers)
{
// look up the item to see if an existing connection is already in use
AddressBookItemConnectionManager prevManager = _sessionManagers[item];
// if a connection manager is found for the item then disconnect it
if (prevManager != null)
prevManager.Disconnect();
}
}
// create a new tcp connection in verbose mode
HttpConnection connection = new HttpConnection(verboseSession);
// create a new connection manager to manage the connection
AddressBookItemConnectionManager manager = new AddressBookItemConnectionManager(item, connection);
// wire up to the manager's events
manager.ConnectionEstablishContext += new AddressBookItemConnectionManagerContextEventHandler(OnConnectionEstablishContext);
manager.ConnectionResolvingAddress += new AddressBookItemConnectionManagerResolvingAddressEventHandler(OnConnectionResolvingAddress);
manager.BeforeConnectionOpened += new AddressBookItemConnectionManagerCancelEventHandler(OnBeforeConnectionOpened);
manager.BeforeConnectionClosed += new AddressBookItemConnectionManagerCancelEventHandler(OnBeforeConnectionClosed);
manager.ConnectionOpened += new AddressBookItemConnectionManagerEventHandler(OnConnectionOpened);
manager.ConnectionClosed += new AddressBookItemConnectionManagerEventHandler(OnConnectionClosed);
manager.ConnectionException += new AddressBookItemConnectionManagerExceptionEventHandler(OnConnectionException);
// create the thread context that will enable us to determine the background thread upon which this connection manager is operating
manager.ThreadContext = new AddressBookItemBackgroundThreadContext((BackgroundThread)sender, item);
// instruct the manager to connect the connection to the remote host
// pass it instructions on whether it should begin receiving automatically or not
// NOTE: In almost every case from a client created connection this will be false.
// Only server created sessions will be set to automatically receive.
manager.Connect(autoRecv, manager.ThreadContext);
// add the connection manager to our list of connection managers
lock(_sessionManagers)
_sessionManagers.Add(manager);
}
catch(ThreadAbortException)
{
// ignore thread abort exceptions
}
catch(Exception ex)
{
Debug.WriteLine(ex);
}
}
