/// <summary>
/// Asynchronously calls the Read service.
/// </summary>
public virtual IAsyncResult BeginRead(ReadMessage message, AsyncCallback callback, object callbackData)
{
try
{
// check for bad data.
if (message == null) throw new ArgumentNullException("message");
// set the request context.
SetRequestContext(RequestEncoding.Xml);
// create handler.
ProcessRequestAsyncResult result = new ProcessRequestAsyncResult(this, callback, callbackData, 0);
return result.BeginProcessRequest(SecureChannelContext.Current, message.ReadRequest);
}
catch (Exception e)
{
throw CreateSoapFault(message.ReadRequest, e);
}
}
/// <summary>
/// The operation contract for the Read service.
/// </summary>
public virtual ReadResponseMessage Read(ReadMessage request)
{
ReadResponse response = null;
try
{
// OnRequestReceived(message.ReadRequest);
SetRequestContext(RequestEncoding.Xml);
response = (ReadResponse)Read(request.ReadRequest);
// OnResponseSent(response);
return new ReadResponseMessage(response);
}
catch (Exception e)
{
Exception fault = CreateSoapFault(request.ReadRequest, e);
// OnResponseFaultSent(fault);
throw fault;
}
}
/// <summary>
/// The operation contract for the Read service.
/// </summary>
public virtual ReadResponseMessage Read(ReadMessage request)
{
try
{
SetRequestContext(RequestEncoding.Xml);
ReadResponse response = (ReadResponse)Read(request.ReadRequest);
return new ReadResponseMessage(response);
}
catch (Exception e)
{
throw CreateSoapFault(request.ReadRequest, e);
}
}
/// <summary>
/// Reads the values for one or more attributes.
/// </summary>
public ReadResponseMessage Read(ReadMessage request)
{
try
{
lock (m_lock)
{
// verify that the session is still valid.
VerifySession(request.RequestHeader, false);
// process each attribute.
ListOfDataValue results = new ListOfDataValue();
ListOfDiagnosticInfo diagnosticInfos = new ListOfDiagnosticInfo();
for (int ii = 0; ii < request.NodesToRead.Count; ii++)
{
DataValue result = new DataValue();
DiagnosticInfo diagnosticInfo = new DiagnosticInfo();
m_nodeManager.Read(
request.NodesToRead[ii],
result,
diagnosticInfo);
results.Add(result);
diagnosticInfos.Add(diagnosticInfo);
}
// return the response.
ReadResponseMessage response = new ReadResponseMessage();
response.ResponseHeader = CreateResponseHeader(request.RequestHeader);
response.Results = results;
response.DiagnosticInfos = diagnosticInfos;
return response;
}
}
catch (Exception e)
{
throw CreateSoapFault(request.RequestHeader, e);
}
}