/// <summary>
/// Returns the localized text for the specified result code.
/// </summary>
/// <param name="locale">The locale name in the format "[languagecode]-[country/regioncode]".</param>
/// <param name="resultId">The result code identifier.</param>
/// <returns>A message localized for the best match for the requested locale.</returns>
public override string GetErrorText(string locale, OpcResult resultId)
{
lock (this)
{
if (m_server == null)
{
throw new NotConnectedException();
}
string methodName = "IOPCServer.GetErrorString";
// invoke COM method.
try
{
string errorText = null;
IOPCServer server = BeginComCall <IOPCServer>(methodName, true);
((IOPCServer)m_server).GetErrorString(
resultId.Code,
Technosoftware.DaAeHdaClient.Com.Interop.GetLocale(locale),
out errorText);
return(errorText);
}
catch (Exception e)
{
ComCallError(methodName, e);
throw Technosoftware.DaAeHdaClient.Com.Interop.CreateException("IOPCServer.GetErrorString", e);
}
finally
{
EndComCall(methodName);
}
}
}
/// <summary>
/// 写入数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>;
private void btnWriteDataItem_Click(object sender, RoutedEventArgs e)
{
string message = null;
if (!opcClienthelper.IsConnected)
{
message = DateTime.Now.ToString(dateString) + "请先连接服务器" + System.Environment.NewLine;
asyncUpMessage(message);
return;
}
OpcDataItem opcDataItem = null;
OpcResult opcResult = OpcResult.Unknow;
if (Equals(null, opcClienthelper.OpcDataItems) || opcClienthelper.OpcDataItems.Count < 1)
{
message = DateTime.Now.ToString(dateString) + "没有数据点" + System.Environment.NewLine;
}
else
{
opcDataItem = opcClienthelper.OpcDataItems.FirstOrDefault().Clone() as OpcDataItem;
//bool newValue = (DateTime.Now.Millisecond % 2) == 0 ? true : false;
//bool newValue = !tmpValue;
//tmpValue = newValue;
//System.Diagnostics.Debug.Print(tmpValue.ToString());
opcResult = opcClienthelper.Write(opcDataItem, 1);
message = DateTime.Now.ToString(dateString) + "写入完成 " + opcResult + " " + (opcDataItem == null ? " " : opcDataItem.ToString()) + System.Environment.NewLine;
}
asyncUpMessage(message);
}
/// <summary>
/// Lookups the error text for the specified error id.
/// </summary>
private string GetErrorText(object subscriptionHandle, OpcResult resultID)
{
if (ShowErrorTextMI.Checked)
{
// display nothing for ok results.
if (resultID == OpcResult.S_OK)
{
return("");
}
// fetch the error text from the server.
string errorText = null;
try
{
TsCDaSubscription subscription = (TsCDaSubscription)m_subscriptions[subscriptionHandle];
string locale = (subscription != null)?subscription.Locale:CultureInfo.CurrentCulture.Name;
errorText = m_server.GetErrorText(locale, resultID);
}
catch
{
errorText = null;
}
// return the result;
return((errorText != null)?errorText:"");
}
// return the result id as a string.
return(resultID.ToString());
}
/// <summary>
/// Returns the localized text for the specified result code.
/// </summary>
/// <param name="locale">The locale name in the format "[languagecode]-[country/regioncode]".</param>
/// <param name="resultId">The result code identifier.</param>
/// <returns>A message localized for the best match for the requested locale.</returns>
public virtual string GetErrorText(string locale, OpcResult resultId)
{
lock (lock_)
{
if (server_ == null)
{
throw new NotConnectedException();
}
try
{
string currentLocale = GetLocale();
if (currentLocale != locale)
{
SetLocale(locale);
}
((IOPCCommon)server_).GetErrorString(resultId.Code, out var errorText);
if (currentLocale != locale)
{
SetLocale(currentLocale);
}
return(errorText);
}
catch (Exception e)
{
throw Utilities.Interop.CreateException("IOPCServer.GetErrorString", e);
}
}
}
/// <summary>
/// Lookups the error text for the specified error id.
/// </summary>
private string GetErrorText(OpcResult resultID)
{
if (ShowErrorTextMI.Checked)
{
// display nothing for ok results.
if (resultID == OpcResult.S_OK)
{
return("");
}
// check if text has already been fetched.
string errorText = (string)m_errors[resultID];
// fetch the error text from the server.
if (errorText == null)
{
try
{
errorText = m_server.GetErrorText(m_locale, resultID);
m_errors[resultID] = errorText;
}
catch
{
errorText = null;
}
}
// return the result;
return((errorText != null)?errorText:"");
}
// return the result id as a string.
return(resultID.ToString());
}
/// <summary>
/// Lookups the error text for the specified error id.
/// </summary>
private string GetErrorText(OpcResult resultId)
{
if (showErrorTextMi_.Checked)
{
// display nothing for ok results.
if (resultId == OpcResult.S_OK)
{
return("");
}
// check if text has already been fetched.
string errorText = (string)MErrors[resultId];
// fetch the error text from the server.
if (errorText == null)
{
try
{
errorText = MServer.GetErrorText(MLocale, resultId);
MErrors[resultId] = errorText;
}
catch
{
errorText = null;
}
}
// return the result;
return((errorText != null)?errorText:"");
}
// return the result id as a string.
return(resultId.ToString());
}
/// <summary>
/// 写数据
/// </summary>
/// <param name="opcDataItem"></param>
/// <param name="value"></param>
/// <returns></returns>
public OpcResult Write(OpcDataItem opcDataItem, object value)
{
OpcResult opcResult = OpcResult.Unknow;
//如果未连接那么返回
if (!this.IsConnected)
{
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "Opc服务器未连接，请先连接再写数据项", null));
}
return(opcResult);
}
try
{
if (Equals(null, opcDataItem))
{
throw new ArgumentNullException("opcDataItem参数不能为空。");
}
Opc.Da.Subscription tmpSubscription =
this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>().FirstOrDefault(a => a.State.UpdateRate == opcDataItem.UpdateRate);
var itemValue =
new ItemValue((ItemIdentifier)tmpSubscription.Items.FirstOrDefault(a => a.ItemName == opcDataItem.Name));
//itemValue.Value = opcDataItem.NewValue;
itemValue.Value = value;
var results = tmpSubscription.Write(new ItemValue[] { itemValue });
//写多次
//for (int i = 0; i < 20; i++)
//{
results = tmpSubscription.Write(new ItemValue[] { itemValue });
//}
if (results.Count() < 1 && !Equals(null, OnErrorHappened))
{
opcResult = OpcResult.E_UNKNOWN_ITEM_NAME;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "写入数据项时发生错误，未找到数据项:" + opcDataItem.Name, null));
opcDataItem.Quality = OpcResult.Unknow;
return(opcResult);
}
foreach (var v in results)
{
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "写入数据项时发生错误:" + v.ResultID.Name, null));
}
}//end foreach
return(opcResult);
}
catch (Exception ex)
{
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcHelper.OpcErrorEventArgs(OpcResult.E_FAIL, "写入数据时错误。", ex));
}
return(opcResult);
}
}
/// <summary>
/// 连接服务器
/// </summary>
/// <param name="serverName"></param>
/// <param name="host"></param>
public OpcResult Connect(string serverName, string host = "127.0.0.1")
{
OpcResult opcResult = OpcResult.ServerNoConnect;
try
{
this.OpcServerName = serverName;
this.Host = host;
if (string.IsNullOrWhiteSpace(serverName) || string.IsNullOrWhiteSpace(host))
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("未指定服务器或主机名称"));
}
opcResult = OpcResult.E_FAIL;
return(opcResult);
}
if (IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已经连接,host=" + host + ",serverName=" + serverName));
}
opcResult = OpcResult.S_OK;
return(opcResult);
}
var servers = OpcClientHelper.getOpcServers(host);
if (!Equals(null, servers) && servers.Any(a => a.Name == serverName))
{
opcServer = (Opc.Da.Server)servers.FirstOrDefault(a => a.Name == serverName);
opcServer.Connect();
//服务器断开事件
opcServer.ServerShutdown += opcServer_ServerShutdown;
IsConnected = true;
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("连接Opc服务器成功,host=" + host + ",serverName=" + serverName));
}
//连接成功后开启守护进程
daemonTimer.Enabled = true;
daemonTimer.Start();
opcResult = OpcResult.S_OK;
}
return(opcResult);
}
catch (Exception ex)
{
IsConnected = false;
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "连接Opc服务器时出错：" + ex.Message, ex));
}
opcResult = OpcResult.E_FAIL;
return(opcResult);
}
}
/// <summary>
/// Initializes the object with the specified item identifier and result.
/// </summary>
public TsCDaItemPropertyCollection(OpcItem itemId, OpcResult result)
{
if (itemId != null)
{
ItemName = itemId.ItemName;
ItemPath = itemId.ItemPath;
}
result_ = result;
}
/// <summary>
/// 数据改变事件函数
/// </summary>
/// <param name="subscriptionHandle"></param>
/// <param name="requestHandle"></param>
/// <param name="values"></param>
private void ThisSubscription_DataChanged(object subscriptionHandle, object requestHandle, Opc.Da.ItemValueResult[] values)
{
if (!Equals(null, OnDataChanged) && IsConnected && !Equals(null, OpcDataItems))
{
//异步方式
//System.Threading.Tasks.Parallel.ForEach<ItemValueResult>(values, (v) =>
//{
// OpcDataItem item = OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName);
// if (Equals(null, item))
// {
// return;
// }
// OpcResult opcResult = OpcResult.Unknow;
// Enum.TryParse<OpcResult>(v.ResultID.ToString(), out opcResult);
// item.Name = v.ItemName;
// item.Quality = opcResult;
// item.OldValue = item.NewValue;
// item.NewValue = v.Value.ToString();
// OnDataChanged(this, new OpcDataEventArgs(opcResult, item));
//});
//同步方式
foreach (var v in values)
{
OpcDataItem item = OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName);
if (Equals(null, item))
{
//OnDataChanged(this, new OpcDataEventArgs(OpcResult.E_FAIL, item));
continue;
}
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
item.Name = v.ItemName;
item.Quality = opcResult;
item.OldValue = item.NewValue;
item.NewValue = v.Value?.ToString();
OnDataChanged(this, new OpcDataEventArgs(opcResult, item));
}
}
}
/// <summary>
/// Returns the localized text for the specified result code.
/// </summary>
/// <param name="locale">The locale name in the format "[languagecode]-[country/regioncode]".</param>
/// <param name="resultId">The result code identifier.</param>
/// <returns>A message localized for the best match for the requested locale.</returns>
public override string GetErrorText(string locale, OpcResult resultId)
{
lock (this)
{
if (server_ == null)
{
throw new NotConnectedException();
}
string methodName = "IOPCServer.GetErrorString";
// invoke COM method.
try
{
IOPCServer server = BeginComCall <IOPCServer>(methodName, true);
(server).GetErrorString(
resultId.Code,
Technosoftware.DaAeHdaClient.Com.Interop.GetLocale(locale),
out var errorText);
if (DCOMCallWatchdog.IsCancelled)
{
throw new Exception($"{methodName} call was cancelled due to response timeout");
}
return(errorText);
}
catch (Exception e)
{
ComCallError(methodName, e);
throw Technosoftware.DaAeHdaClient.Com.Interop.CreateException("IOPCServer.GetErrorString", e);
}
finally
{
EndComCall(methodName);
}
}
}
/// <summary>
/// 注册Opc数据项集合
/// </summary>
/// <param name="opcDataItems"></param>
private void registerOpcDataItems(IList <OpcDataItem> opcDataItems)
{
this.OpcDataItems = opcDataItems;
daemonTimer.Enabled = false;
daemonTimer.Stop();
//如果未连接那么返回
if (!this.IsConnected)
{
if (!Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "Opc服务器未连接，请先连接在订阅数据项", null));
}
return;
}
#region 没有数据项那么清空所有订阅
//如果订阅的DataItem没有，那么清空现在所有订阅
if (Equals(null, opcDataItems) || opcDataItems.Count() < 1)
{
if (!Equals(this.opcServer.Subscriptions, null) && this.opcServer.Subscriptions.Count > 0)
{
foreach (Opc.Da.Subscription thisSubscription in this.opcServer.Subscriptions)
{
thisSubscription.RemoveItems(thisSubscription.Items);
thisSubscription.DataChanged -= ThisSubscription_DataChanged;
this.opcServer.CancelSubscription(thisSubscription);
thisSubscription.Dispose();
}
this.opcServer.Subscriptions.Clear();
//订阅项取消后通知外部程序
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcHelper.OpcLogEventArgs("已经取消所有订阅"));
}
return;
}
}
#endregion 数据项需要更新或者删除
//根据要订阅的新数据项，增加或者移除现在的订阅
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//根据更新频率分组
var dataItemGroups = from a in opcDataItems
group a by a.UpdateRate into g
select new { UpdateRate = g.Key, DataItems = g };
//循环每组订阅对象，查询是否实际订阅，有则更新，没有则新建
foreach (var dataItemGroup in dataItemGroups)
{
Opc.Da.Subscription thisSubscription = this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>().FirstOrDefault(a => a.State.UpdateRate == dataItemGroup.UpdateRate);
//未找到已经订阅的组，那么新建组并添加订阅项
if (Equals(null, thisSubscription))
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
#region 增加订阅
//创建订阅组。订阅组状态的名称是更新频率
Opc.Da.Subscription newSubscription = this.opcServer.CreateSubscription
(CreateSubscriptionState(dataItemGroup.UpdateRate.ToString(), dataItemGroup.UpdateRate))
as Opc.Da.Subscription;//创建组
//创建opc订阅项
var opcItems = ConvertItems(dataItemGroup.DataItems);
//添加订阅项
var results = newSubscription.AddItems(opcItems.ToArray());
newSubscription.DataChanged += ThisSubscription_DataChanged;
//订阅的结果通过事件通知给外部调用程序
foreach (var v in results)
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//订阅成功更新状态
if (v.ResultID == Opc.ResultID.S_OK)
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
}
//未订阅成功，异常事件通知
else if (v.ResultID == Opc.ResultID.S_OK && !Equals(null, OnDataChanged))
{
OnDataChanged(this, new OpcDataEventArgs(OpcResult.DataItemRegistered,
dataItemGroup.DataItems.FirstOrDefault(a => a.Name == v.ItemName)));
}
else if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
this.OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "订阅数据项时发生错误" + v.ResultID.Name, null));
}
}//end foreach
#endregion
}
else//已经有订阅组，那么更新订阅项
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
#region 已经有订阅组，那么更新订阅项
//查询要新增加的点，
IList <OpcDataItem> newItems = new List <OpcDataItem>();
foreach (var v in dataItemGroup.DataItems)
{
if (!thisSubscription.Items.Any(a => a.ItemName == v.Name))
{
newItems.Add(v);
}
}
var opcItems = ConvertItems(newItems);
//添加订阅项
var addResults = thisSubscription.AddItems(opcItems.ToArray());
//订阅的结果通过事件通知给外部调用程序
foreach (var v in addResults)
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//订阅成功更新状态
if (v.ResultID == Opc.ResultID.S_OK)
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
}
//未订阅成功，异常事件通知
else if (v.ResultID == Opc.ResultID.S_OK && !Equals(null, OnDataChanged))
{
OnDataChanged(this, new OpcDataEventArgs(OpcResult.DataItemRegistered,
dataItemGroup.DataItems.FirstOrDefault(a => a.Name == v.ItemName)));
}
else if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
OpcResult opcResult = OpcResult.Unknow;
Enum.TryParse <OpcResult>(v.ResultID.ToString(), out opcResult);
this.OpcDataItems.FirstOrDefault(a => a.Name == v.ItemName).Quality = opcResult;
OnErrorHappened(this, new OpcErrorEventArgs(opcResult, "订阅数据项时发生错误:" + v.ItemName + " 无效,OpcResult=" + v.ResultID.Name, null));
}
}//end foreach
//查询要删除的点，
IList <Opc.Da.Item> deleteItems = new List <Opc.Da.Item>();
foreach (var v in thisSubscription.Items)
{
if (!dataItemGroup.DataItems.Any(a => a.Name == v.ItemName))
{
deleteItems.Add(v);
}
}
//删除已经订阅点
var deleteResults = thisSubscription.RemoveItems(deleteItems.ToArray());
//订阅的结果通过事件通知给外部调用程序
foreach (var v in deleteResults)
{
if (!IsConnected)
{
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Opc服务器已断开"));
}
return;
}
//未订阅成功，异常事件通知
if (v.ResultID == Opc.ResultID.S_OK && !Equals(null, OnDataChanged))
{
OpcDataItem tmp2 = new OpcDataItem(v.ItemName, thisSubscription.State.UpdateRate, "", "", OpcResult.DataItemUnregistered);
OnDataChanged(this, new OpcDataEventArgs(OpcResult.DataItemUnregistered, tmp2));
}
else if (v.ResultID != Opc.ResultID.S_OK && !Equals(null, OnErrorHappened))
{
OnErrorHappened(this, new OpcErrorEventArgs(OpcResult.E_FAIL, "取消订阅数据项时发生错误" + v.ResultID.Name, null));
}
}//end foreach
//删除订阅项后没有item了，那么删除thisSubscription
if (thisSubscription.Items.Count() < 1)
{
thisSubscription.DataChanged -= ThisSubscription_DataChanged;
string name = thisSubscription.Name;
//this.opcServer.Subscriptions.Remove(thisSubscription);
this.opcServer.CancelSubscription(thisSubscription);
thisSubscription.Dispose();//
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Subscription " + name + " 已经从订阅组中移除"));
}
name = null;
}
#endregion
}
}//end foreach (var dataItemGroup in dataItemGroups)
//删除订阅项后没有item了，那么删除subscription
foreach (var subscription in this.opcServer.Subscriptions.Cast <Opc.Da.Subscription>())
{
var isHave = dataItemGroups.Any(a => a.UpdateRate == subscription.State.UpdateRate);
if (!isHave)
{
subscription.DataChanged -= ThisSubscription_DataChanged;
string name = subscription.Name;
//his.opcServer.Subscriptions.Remove(thisSubscription);
this.opcServer.CancelSubscription(subscription);
subscription.Dispose();//
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("Subscription " + name + " 已经从订阅组中移除"));
}
name = null;
}
}
if (!Equals(null, OnLogHappened))
{
OnLogHappened(this, new OpcLogEventArgs("OPC Subscriptions Count:" + this.opcServer.Subscriptions.Count + "."));
}
daemonTimer.Enabled = true;
daemonTimer.Start();
}
/// <summary>
/// Initializes the object with an ItemIdentifier object and Result.
/// </summary>
public TsCDaItemResult(OpcItem item, OpcResult resultID)
: base(item)
{
Result = resultID;
}
public OpcDataItem(string name, int updateRate, string oldValue, string newValue, OpcResult quality)
{
this.Name = name;
this.UpdateRate = updateRate;
this.OldValue = oldValue;
this.NewValue = newValue;
this.Quality = quality;
}
/// <summary>
/// Initializes the object with the specified item name, result code and diagnostic info.
/// </summary>
public TsCDaItemValueResult(string itemName, OpcResult resultId, string diagnosticInfo)
: base(itemName)
{
Result = resultId;
DiagnosticInfo = diagnosticInfo;
}
/// <summary>
/// Initialize object with the specified ItemIdentifier and result code.
/// </summary>
public TsCDaItemValueResult(OpcItem item, OpcResult resultId)
: base(item)
{
Result = resultId;
}
/// <summary>
/// Initializes the object with the specified ItemIdentifier, result code and diagnostic info.
/// </summary>
public TsCDaItemValueResult(OpcItem item, OpcResult resultId, string diagnosticInfo)
: base(item)
{
Result = resultId;
DiagnosticInfo = diagnosticInfo;
}
/// <summary>
/// Initializes the object with the specified item name and result code.
/// </summary>
public TsCDaItemValueResult(string itemName, OpcResult resultId)
: base(itemName)
{
Result = resultId;
}
/// <summary>
/// Initializes the object with the specified result id.
/// </summary>
public TsCHdaResult(OpcResult resultId)
{
Result = resultId;
DiagnosticInfo = null;
}
public OpcErrorEventArgs(OpcResult opcResult, string message, Exception exception)
{
this.OpcResult = opcResult;
this.Message = message;
this.Exception = exception;
}
public OpcDataEventArgs(OpcResult opcResult, OpcDataItem opcDataItem)
{
this.OpcResult = opcResult;
this.OpcDataItem = opcDataItem;
}
/// <summary>
/// Initializes the object with an qualified name and Result.
/// </summary>
public TsCAeEnabledStateResult(string qualifiedName, OpcResult result)
{
qualifiedName_ = qualifiedName;
Result = result;
}
/// <summary>
/// Initializes the object with an Item object and Result.
/// </summary>
public TsCDaItemResult(TsCDaItem item, OpcResult resultId)
: base(item)
{
Result = resultId;
}
