private void AddSeatToRoom(LabelIdMapping labelIdMapping)
{
if (_seats.All(x => x.Id != labelIdMapping.Id))
{
_seats.Add(labelIdMapping);
}
}
private void buttonProcessOrder_Click(object sender, RoutedEventArgs e)
{
LabelIdMapping labelId = listOrders.SelectedItem as LabelIdMapping;
Message message = orderQueue.ReceiveById(labelId.Id);
listOrders.Items.Remove(labelId);
listOrders.SelectedIndex = -1;
buttonProcessOrder.IsEnabled = false;
textCompany.Text = string.Empty;
textContact.Text = string.Empty;
textCourse.Text = string.Empty;
MessageBox.Show("Course order processed", "Course Order Receiver",
MessageBoxButton.OK, MessageBoxImage.Information);
}
private void PeekMessages()
{
using (MessageEnumerator messagesEnumerator =
orderQueue.GetMessageEnumerator2())
{
while (messagesEnumerator.MoveNext(TimeSpan.FromHours(3)))
{
var labelId = new LabelIdMapping()
{
Id = messagesEnumerator.Current.Id,
Label = messagesEnumerator.Current.Label
};
Dispatcher.Invoke(DispatcherPriority.Normal,
new Action <LabelIdMapping>(AddListItem), labelId);
}
}
MessageBox.Show("No orders in the last 3 hours. Exiting thread",
"Course Order Receiver", MessageBoxButton.OK,
MessageBoxImage.Information);
}
private void PeekMessages()
{
using (MessageEnumerator messagesEnumerator =
orderQueue.GetMessageEnumerator2())
{
while (messagesEnumerator.MoveNext(TimeSpan.FromHours(3)))
{
var labelId = new LabelIdMapping()
{
Id = messagesEnumerator.Current.Id,
Label = messagesEnumerator.Current.Label
};
Dispatcher.Invoke(DispatcherPriority.Normal,
new Action<LabelIdMapping>(AddListItem), labelId);
}
}
MessageBox.Show("No orders in the last 3 hours. Exiting thread",
"Course Order Receiver", MessageBoxButton.OK,
MessageBoxImage.Information);
}
private IEnumerable <LabelIdMapping> PeekMessages(MessageQueue queue)
{
var counter = 0;
using (var msgEnumerator = queue.GetMessageEnumerator2())
{
while (msgEnumerator.MoveNext(TimeSpan.FromMilliseconds(10)) && msgEnumerator.Current != null)
{
counter++;
var labelId = new LabelIdMapping
{
Id = msgEnumerator.Current.Id,
Label = msgEnumerator.Current.Label
};
Dispatcher.Invoke(new Action <LabelIdMapping>(AddSeatToRoom), labelId);
}
}
return((counter > 0) ? _seats : new List <LabelIdMapping>());
}
/// <summary>
/// SelectedIndex Changed event handler for ListBox
/// - Peeks at the Message selected in the Queue
/// and Display information about the CD order in the queue
/// </summary>
private void lBOrders_SelectedIndexChanged(object sender, EventArgs e)
{
LabelIdMapping labelID = (LabelIdMapping)lBOrders.SelectedItem;
if (labelID == null)
{
return;
}
MessagePropertyFilter filter = new MessagePropertyFilter();
filter.SetDefaults();
filter.Priority = true;
mqOrderQueue.MessageReadPropertyFilter = filter;
System.Messaging.Message message = mqOrderQueue.PeekById(labelID.Id);
if (message.Body is CDOrder)
{
if (message.Priority > MessagePriority.Normal)
{
lblFast.Visible = true;
}
else
{
lblFast.Visible = false;
}
CDOrder cdOrder = message.Body as CDOrder;
tBCDTitle.Text = cdOrder.Product.Title;
tBCount.Text = cdOrder.Quantity.ToString();
tBCompany.Text = cdOrder.Customer.Company;
tBContact.Text = cdOrder.Customer.Contact;
tBSent.Text = cdOrder.OrderTime.ToString("f");
btnProcess.Enabled = true;
}
else
{
MessageBox.Show("The selected Item is not a book order");
}
}
/// <summary>
/// Thread function to peek at the messages in the Queue
/// Adds newly arrived Orders in the message queue to the ListBox
/// </summary>
protected void PeekMessages()
{
MessageEnumerator messageEnum = mqOrderQueue.GetMessageEnumerator2();
//We keep track of Messages in List box already
ordersRetrieved = new ArrayList();
//The MessageEnumerator walks through the messages in the queue
//MoveNext is set to a 4 hour time-out if no messages are in the queue
while (messageEnum.MoveNext(new TimeSpan(4, 0, 0)))
{
LabelIdMapping labelID = new LabelIdMapping(messageEnum.Current.Label,
messageEnum.Current.Id);
if (!ordersRetrieved.Contains(messageEnum.Current.Id))
{
// lBOrders.Items.Add(labelID);
this.lBOrders.Invoke(new AddListBoxDelegate(AddListBox), labelID);
}
this.ordersRetrieved.Add(messageEnum.Current.Id);
}
}
private void btnProcess_Click(object sender, EventArgs e)
{
//The LabelIdMapping helps to map the Label of a message with the message Id.
//This enables each message to be uniquely identified
LabelIdMapping labelID = (LabelIdMapping)lBOrders.SelectedItem;
System.Messaging.Message message = mqOrderQueue.ReceiveById(labelID.Id);
lBOrders.Items.Remove(labelID);
lBOrders.SelectedIndex = -1;
btnProcess.Enabled = false;
System.Messaging.Message response = new System.Messaging.Message();
CDOrder ackOrder = message.Body as CDOrder;
if (null != ackOrder)
{
ackOrder.OrderTime = DateTime.Now;
response.Body = ackOrder;
response.Label = message.Label;
response.CorrelationId = message.Id;
message.ResponseQueue.Send(response);
tBCDTitle.Text = String.Empty;
tBCount.Text = String.Empty;
tBCompany.Text = String.Empty;
tBContact.Text = String.Empty;
tBSent.Text = String.Empty;
MessageBox.Show("The order was shipped");
}
else
{
MessageBox.Show("There is an unexpected item in the Queue");
}
}
private void listOrders_SelectionChanged(object sender, RoutedEventArgs e)
{
LabelIdMapping labelId = listOrders.SelectedItem as LabelIdMapping;
if (labelId == null)
{
return;
}
orderQueue.MessageReadPropertyFilter.Priority = true;
Message message = orderQueue.PeekById(labelId.Id);
CourseOrder order = message.Body as CourseOrder;
if (order != null)
{
textCourse.Text = order.Course.Title;
textCompany.Text = order.Customer.Company;
textContact.Text = order.Customer.Contact;
buttonProcessOrder.IsEnabled = true;
if (message.Priority > MessagePriority.Normal)
{
labelPriority.Visibility = Visibility.Visible;
}
else
{
labelPriority.Visibility = Visibility.Hidden;
}
}
else
{
MessageBox.Show("The selected item is not a course order",
"Course Order Receiver", MessageBoxButton.OK,
MessageBoxImage.Warning);
}
}
/// <summary>
/// Function to Add incoming CD Orders to the ListBox
/// </summary>
private void AddListBox(LabelIdMapping labelID)
{
lBOrders.Items.Add(labelID);
}
private void AddListItem(LabelIdMapping labelIdMapping)
{
listOrders.Items.Add(labelIdMapping);
}
private void AddListItem(LabelIdMapping labelIdMapping)
{
listOrders.Items.Add(labelIdMapping);
}
