/// <summary>
/// Returns a localized client for the specified locale id.
/// </summary>
/// <param name="identity">The identity.</param>
/// <param name="localeId">The locales id.</param>
/// <returns>A localized client.</returns>
public ComClient GetLocalizedClient(IUserIdentity identity, int localeId)
{
// check if a logon is required.
string userName = null;
if (identity != null && identity.TokenType == UserTokenType.UserName)
{
userName = (identity.GetIdentityToken() as UserNameIdentityToken).UserName;
}
if (String.IsNullOrEmpty(userName) && localeId == ComUtils.LOCALE_SYSTEM_DEFAULT)
{
Utils.Trace("COM Client Selected: DEFAULT (no match for locale)");
return(DefaultClient);
}
// create the key.
StringBuilder buffer = new StringBuilder();
buffer.Append(localeId);
if (!String.IsNullOrEmpty(userName))
{
buffer.Append(':');
buffer.Append(userName);
}
string key = buffer.ToString();
if (m_localizedClients == null)
{
m_localizedClients = new Dictionary <string, ComClient>();
}
ComClient client = null;
if (!m_localizedClients.TryGetValue(key, out client))
{
client = CreateClient();
client.Key = key;
client.LocaleId = localeId;
client.UserIdentity = identity;
client.CreateInstance();
m_localizedClients[key] = client;
}
// Utils.Trace("COM Client Seleted: {0}", key);
return(client);
}
/// <summary>
/// Updates the metadata cached for the server.
/// </summary>
private void DoMetadataUpdate(object state)
{
try
{
if (!Server.IsRunning)
{
return;
}
ComClientManager system = (ComClientManager)SystemContext.SystemHandle;
ComClient client = (ComClient)system.SelectClient(SystemContext, true);
int[] availableLocales = client.QueryAvailableLocales();
if (availableLocales != null)
{
lock (Server.DiagnosticsLock)
{
// check if the server is running.
if (!Server.IsRunning)
{
return;
}
// get the LocaleIdArray property.
BaseVariableState localeArray = Server.DiagnosticsNodeManager.Find(Opc.Ua.VariableIds.Server_ServerCapabilities_LocaleIdArray) as BaseVariableState;
List <string> locales = new List <string>();
// preserve any existing locales.
string[] existingLocales = localeArray.Value as string[];
if (existingLocales != null)
{
locales.AddRange(existingLocales);
}
for (int ii = 0; ii < availableLocales.Length; ii++)
{
if (availableLocales[ii] == 0 || availableLocales[ii] == ComUtils.LOCALE_SYSTEM_DEFAULT || availableLocales[ii] == ComUtils.LOCALE_USER_DEFAULT)
{
continue;
}
try
{
System.Globalization.CultureInfo culture = System.Globalization.CultureInfo.GetCultureInfo(availableLocales[ii]);
if (!locales.Contains(culture.Name))
{
locales.Add(culture.Name);
}
}
catch (Exception e)
{
Utils.Trace(e, "Can't process an invalid locale id: {0:X4}.", availableLocales[ii]);
}
}
localeArray.Value = locales.ToArray();
}
}
// invoke callback.
if (m_metadataUpdateCallback != null)
{
m_metadataUpdateCallback(state);
}
}
catch (Exception e)
{
Utils.Trace(e, "Unexpected error updating HDA server metadata.");
}
}
/// <summary>
/// Returns a localized client based on the preferred locales.
/// </summary>
/// <param name="identity">The identity to use.</param>
/// <param name="preferredLocales">The locales to use.</param>
/// <returns>A localized client.</returns>
public ComClient GetLocalizedClient(IUserIdentity identity, IList <string> preferredLocales)
{
return(GetLocalizedClient(identity, ComClient.SelectLocaleId(AvailableLocaleIds, preferredLocales)));
}
/// <summary>
/// Initializes a new instance of the <see cref="SubscribeRequestManager"/> class.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="client">The COKM client wrapper.</param>
/// <param name="propertySamplingInterval">The property sampling interval.</param>
public SubscribeRequestManager(ServerSystemContext context, ComClient client, int propertySamplingInterval)
{
m_context = context;
m_propertySamplingInterval = propertySamplingInterval;
m_subscribedItems = new Dictionary<string, SubscribeItemRequest>();
m_subscribedProperties = new Dictionary<string, SubscribePropertyRequest>();
m_groups = new List<ComDaGroup>();
m_monitoredItems = new Dictionary<uint, IMonitoredItem>();
if (client == null)
{
LocaleId = ComUtils.LOCALE_SYSTEM_DEFAULT;
UserIdentity = null;
Key = String.Empty;
}
else
{
LocaleId = client.LocaleId;
UserIdentity = client.UserIdentity;
Key = client.Key;
}
}