/// <summary>checks, if availabe connections contain one, which is usable. If yes, removes the connection
/// from the available and returns it. </summary>
/// <remarks>If unusable connections are found, closes and removes them from available and all connections.</remarks>
/// <returns>the connection, if found, otherwise null.</returns>
protected virtual GiopClientConnection GetFromAvailable(string connectionKey)
{
GiopClientConnection result = null;
IList available = (IList)m_availableConnections[connectionKey];
while ((available != null) && (available.Count > 0))
{
GiopClientConnection con = (GiopClientConnection)available[available.Count - 1];
available.RemoveAt(available.Count - 1);
if (con.CanBeUsedForNextRequest())
{
result = con;
break;
}
else
{
try {
if (con.CanCloseConnection())
{
con.CloseConnection();
}
} catch (Exception) {
} finally {
UnregisterConnection(connectionKey, con);
}
}
}
return(result);
}