/// <summary>
/// Checks and complete the request.
/// </summary>
/// <param name="request">Request to check.</param>
/// <returns>Request checked.</returns>
private Request CheckRequest(Request request)
{
Request lResult = null;
// Get the sequence and ticket from the connected agent.
if (request.Agent != null)
{
// Sequence.
request.Sequence = request.Agent.Sequence;
request.Agent.Sequence++;
// Ticket.
request.Ticket = request.Agent.Ticket;
}
else
{
// Exception: 'MVAgentValidation' service does not need Agent.
if ((request.IsQuery) || ((request.IsService) && (request.Service.Name != VALIDATION_SERVICE_NAME)))
{
string lMessage = CultureManager.TranslateString(LanguageConstantKeys.L_LOGIN_ERROR, LanguageConstantValues.L_LOGIN_ERROR);
throw new RequestException(lMessage);
}
}
// Application.
if ((request.Application == null) || request.Application.Length == 0)
{
request.Application = this.Application;
}
// VersionDTD.
if ((request.VersionDTD == null) || request.VersionDTD.Length == 0)
{
request.VersionDTD = this.VersionDTD;
}
// ConnectionString.
request.ConnectionString = this.ConnectionString;
if ((request.ConnectionString == null) || request.ConnectionString.Length == 0)
{
request.ConnectionString = this.ConnectionString;
}
lResult = request;
return lResult;
}
/// <summary>
/// Sends and receives data.
/// </summary>
/// <param name="request">Data to send.</param>
/// <returns>Data received.</returns>
private Response Send(Request request)
{
// Hourglass
System.Windows.Forms.Cursor lCurrentCursor = System.Windows.Forms.Cursor.Current;
System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.WaitCursor;
Response lResult = null;
if ((this.Connection != null) && (request != null))
{
lResult = new Response();
// Check the info. of Request.
CheckRequest(request);
// Data To Send ...
StringBuilder lSendData = XMLRequestSerializer.SerializeRoot(null as StringBuilder, request);
// Send & Received Data ...
StringBuilder lReceivedData = new StringBuilder(this.Connection.Send(lSendData.ToString()));
// Throw a ResponseException if have error.
lResult = XMLResponseSerializer.Deserialize(lReceivedData.ToString());
// Save Ticket ...
if (lResult.Ticket != null)
{
request.Agent.Ticket = lResult.Ticket;
}
}
else
{
// Hourglass
System.Windows.Forms.Cursor.Current = lCurrentCursor;
string lMessageError = CultureManager.TranslateString(LanguageConstantKeys.L_ERROR_REQUEST, LanguageConstantValues.L_ERROR_REQUEST);
RequestException lrequestException = new RequestException(lMessageError);
lrequestException.Number = 999;
throw lrequestException;
}
// Hourglass
System.Windows.Forms.Cursor.Current = lCurrentCursor;
return lResult;
}
/// <summary>
/// Executes a query.
/// </summary>
/// <param name="agent">Agent who executes the query.</param>
/// <param name="className">Class name to query.</param>
/// <param name="alternateKeyName">Indicates the alternate key name of the .</param>
/// <param name="displaySet">DisplaySet</param>
/// <param name="queryInstance">Query to execute.</param>
/// <param name="orderCriteria">Order criteria.</param>
/// <param name="navigationalFiltering">Navigational Filtering object.</param>
/// <returns>DataTable with rows of result Query.</returns>
private DataTable ExecuteQuery(
Oid agent,
string className,
string alternateKeyName,
string displaySet,
QueryInstance queryInstance,
string orderCriteria,
NavigationalFiltering navigationalFiltering)
{
//Create the Query Request.
QueryRequest lQueryRequest = new QueryRequest(
className, displaySet,
queryInstance, orderCriteria,
navigationalFiltering);
lQueryRequest.AlternateKeyName = alternateKeyName;
// Create the Request.
Request lRequest = new Request(lQueryRequest, agent);
// Send Request to Server.
Response lResponse = this.Send(lRequest);
if ((lResponse != null) && (lResponse.Query != null))
{
return lResponse.Query.Data;
}
return null;
}
