How to retreive TFS server uri in a Subscriber's ProcessEvent method

Question

Hi,

 I have implemented a Subscriber (ISubscriber) to handle checkin events on tfs (server side) and validate some stuff.

I deploy this subscriber on several TFS (a test server, the production server, ...) in the adhoc folder C:\Program Files\Microsoft Team Foundation Server 2010\Application Tier\Web Services\bin\Plugins.

In the ProcessEvent method of my Subscriber, I have to get the checked-in file do to some validations. However, for that purpose, I need the TFS uri. I may not hardcode this one (as the dll is deployed on several servers) and don't want to search for it in the registry or whatever... So, I was wondering if I couldn't get it from the RequestContext instead. Unfortunately, it seems to me that there is NO usefull documentation at all about the TeamFoundationRequestContext in the MSDN :/

 

Could anyone help me to find this uri ?

public EventNotificationStatus ProcessEvent(TeamFoundationRequestContext requestContext,
                                            NotificationType notificationType,
                                            object notificationEventArgs,
                                            out int statusCode,
                                            out string statusMessage,
                                            out ExceptionPropertyCollection properties) {

    CheckinNotification ev = notificationEventArgs as CheckinNotification;

	foreach (var checkin in ev.SubmittedItems)

        {

		var tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri(???));
		var versionControl = tfs.GetService<VersionControlServer>();
 
        	//Get the checked-in item
        	var item = versionControl.GetItem(checkin);
 
        	//Get the version of this item related to the checkin's changset
        	item = versionControl.GetItem(item.ItemId, ev.Changeset);
 
	        //Check that this item is not deleted
        	if (item.DeletionId == 0)
        	{
        		//Download the file in a temporary folder
        		item.DownloadFile(...);

 

Thx a lot in advance for any tip or help.

V.

Answer 1

Debugging TFS, I was able to explore the TFS Server Object Model and found I can directly get a  TeamFoundationControlService (server equivalent to the client VersionControlServer)

CheckinNotification ev = notificationEventArgs as CheckinNotification;

var tfsService = requestContext.GetService<TeamFoundationVersionControlService>();

foreach (var checkin in ev.SubmittedItems)

	tfsService.DownloadFile(requestContext, checkin, 0, new ChangesetVersionSpec(ev.Changeset), "...");

 

 

I can also get a uri if required, but only during DecisionPoint... This URI contains the server address.

 

 if (notificationType == NotificationType.DecisionPoint)

	Uri tfsUri = requestContext.Items["$OriginalRequestPath"] as Uri;

 

Answer 2

Hi V,

 

Thanks for your post.

 

And thank you for sharing your experience here. It will be very beneficial for other community members having the similar questions.

 

All your participation and support are very important to build such harmonious/ pleasant / learning environment for MSDN community.

 

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Answer 3

I have tried this code,

tfsService.DownloadFile(requestContext, checkin, 0, new ChangesetVersionSpec(ev.Changeset), "...");

The ev.changeset is always -1 and errors out.

What am i missing

Trent Bielejeski

Answer 4

For information, I found here the best way to get the TFS uri from a ISubscriber : http://colinsalmcorner.blogspot.be/2011/12/isubscriber-getting-tfs-url-for-client.html

Trent, I presume you solved your issue... On my own, I did not continue with this code. During the "DecisionPoint" you may not get the new version of the file. It's not yet in TFS... You can get it during the "Notification". But instead of using DownloadFile in that part, I do update a Workspace created on the server.

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Valéry Letroye