/// <summary>
/// Creates an instance of the COM server.
/// </summary>
public void CreateInstance()
{
// multiple calls are not allowed - may block for a while due to network operation.
lock (m_lock)
{
ServerFactory factory = new ServerFactory();
try
{
// create the server.
Unknown = factory.CreateServer(new Uri(m_url), null);
// fetch the available locales.
m_availableLocaleIds = QueryAvailableLocales();
// do any post-connect processing.
OnConnected();
}
catch (Exception e)
{
ComUtils.TraceComError(e, "Could not connect to server ({0}).", m_url);
// cleanup on error.
Close();
}
finally
{
factory.Dispose();
}
}
}
/// <summary>
/// Gets the available servers.
/// </summary>
/// <param name="factory">The factory.</param>
/// <param name="specification">The specification.</param>
private void GetAvailableServers(Opc.Ua.Com.ServerFactory factory, Specification specification)
{
Uri[] serverUrls = factory.GetAvailableServers(specification);
for (int ii = 0; ii < serverUrls.Length; ii++)
{
ComServerDescription server = factory.ParseUrl(serverUrls[ii]);
// don't wrap proxies.
if (ConfigUtils.CLSID_UaComDaProxyServer == server.Clsid)
{
continue;
}
if (ConfigUtils.CLSID_UaComAeProxyServer == server.Clsid)
{
continue;
}
if (ConfigUtils.CLSID_UaComHdaProxyServer == server.Clsid)
{
continue;
}
// don't wrap UA psuedo-servers.
List <Guid> catids = ConfigUtils.GetImplementedCategories(server.Clsid);
bool suppress = false;
for (int jj = 0; jj < catids.Count; jj++)
{
if (catids[jj] == ConfigUtils.CATID_PseudoComServers)
{
suppress = true;
break;
}
}
if (suppress)
{
continue;
}
// assume regular COM server.
ListViewItem item = new ListViewItem(server.ProgId);
item.SubItems.Add(server.Description);
item.SubItems.Add(specification.ToString());
item.Tag = new Item(specification, server);
ServersLV.Items.Add(item);
}
}
/// <summary>
/// Updates the list of servers.
/// </summary>
private void UpdateServers()
{
// populate the list of servers.
Opc.Ua.Com.ServerFactory factory = new ServerFactory();
try
{
ServersLV.Items.Clear();
string hostName = HostCB.Text;
if (HostCB.SelectedIndex != -1)
{
hostName = (string)HostCB.SelectedItem;
}
factory.Connect(hostName, null);
Uri[] serverUrls = factory.GetAvailableServers(Specification.Da20, Specification.Da30);
for (int ii = 0; ii < serverUrls.Length; ii++)
{
ComServerDescription server = factory.ParseUrl(serverUrls[ii]);
ListViewItem item = new ListViewItem(server.ProgId);
item.SubItems.Add(server.Description);
item.Tag = server;
ServersLV.Items.Add(item);
}
for (int ii = 0; ii < ServersLV.Columns.Count; ii++)
{
ServersLV.Columns[ii].Width = -2;
}
}
finally
{
factory.Disconnect();
}
}
/// <summary>
/// Creates an instance of the COM server.
/// </summary>
public void CreateInstance()
{
// multiple calls are not allowed - may block for a while due to network operation.
lock (m_lock)
{
ServerFactory factory = new ServerFactory();
try
{
// create the server.
Unknown = factory.CreateServer(new Uri(m_url), null);
// set the locale.
SetLocale(LocaleId);
if (UserIdentity != null)
{
SetUserIdentity(UserIdentity);
}
// do any post-connect processing.
OnConnected();
}
catch (Exception e)
{
ComUtils.TraceComError(e, "Could not connect to server ({0}).", m_url);
// cleanup on error.
Close();
}
finally
{
factory.Dispose();
}
}
}
/// <summary>
/// Updates the list of servers.
/// </summary>
private void UpdateServers()
{
// populate the list of servers.
Opc.Ua.Com.ServerFactory factory = new ServerFactory();
try
{
ServersLV.Items.Clear();
string hostName = HostCB.Text;
if (HostCB.SelectedIndex != -1)
{
hostName = (string)HostCB.SelectedItem;
}
factory.Connect(hostName, null);
GetAvailableServers(factory, Specification.Da20);
GetAvailableServers(factory, Specification.Da30);
GetAvailableServers(factory, Specification.Ae10);
GetAvailableServers(factory, Specification.Hda10);
for (int ii = 0; ii < ServersLV.Columns.Count; ii++)
{
ServersLV.Columns[ii].Width = -2;
}
}
finally
{
factory.Disconnect();
}
}
