|
private IsMatch ( |
||
| endpointDiscoveryMetadata | ||
| Résultat | bool | |
void Match(FindRequestContext findRequestContext)
{
FindCriteria criteria = findRequestContext.Criteria;
if (!ScopeCompiler.IsSupportedMatchingRule(criteria.ScopeMatchBy))
{
return;
}
CompiledScopeCriteria[] compiledScopeCriterias = ScopeCompiler.CompileMatchCriteria(
criteria.InternalScopes,
criteria.ScopeMatchBy);
int matchingEndpointCount = 0;
for (int i = 0; i < this.publishedEndpoints.Count; i++)
{
if (criteria.IsMatch(this.publishedEndpoints[i], compiledScopeCriterias))
{
findRequestContext.AddMatchingEndpoint(this.publishedEndpoints[i]);
matchingEndpointCount++;
if (matchingEndpointCount == criteria.MaxResults)
{
break;
}
}
}
}
protected override IAsyncResult OnBeginOfflineAnnouncement(DiscoveryMessageSequence messageSequence, EndpointDiscoveryMetadata endpointDiscoveryMetadata, AsyncCallback callback, object state)
{
try
{
if (endpointDiscoveryMetadata == null)
{
throw new ArgumentNullException("endpointDiscoveryMetadata");
}
// We care only about ISimpleChatService services
FindCriteria criteria = new FindCriteria(typeof(ISimpleChatService));
if (criteria.IsMatch(endpointDiscoveryMetadata))
{
endpointDiscoveryMetadata.WriteLine("Removing");
Cache.Remove(endpointDiscoveryMetadata.Address.Uri);
}
}
catch (KeyNotFoundException)
{
// No problem if it does not exist in the cache
}
return new CompletedAsyncResult(callback, state);
}
protected override IEnumerable<MatchedEndpointDiscoveryMetadata> OnMatchEndpoints(FindCriteria criteria)
{
return _endpoints
.Where(meta => criteria.IsMatch(meta.Value))
.Select(meta => new MatchedEndpointDiscoveryMetadata(meta.Value))
.ToList();
}
private void OnOnlineAnnouncement(object sender, AnnouncementEventArgs e)
{
EndpointDiscoveryMetadata metadata =
e.EndpointDiscoveryMetadata;
// We are looking for services that
// implement the ISimpleChatService contract
FindCriteria criteria =
new FindCriteria(typeof(ISimpleChatService));
if (criteria.IsMatch(metadata))
{
if (this.GetUser(metadata.Address.Uri) == null)
{
this.PopulateUserList(metadata);
}
}
}
protected override IAsyncResult OnBeginOnlineAnnouncement(DiscoveryMessageSequence messageSequence,
EndpointDiscoveryMetadata endpointDiscoveryMetadata,
AsyncCallback callback,
object state)
{
if (endpointDiscoveryMetadata == null)
{
throw new ArgumentNullException("endpointDiscoveryMetadata");
}
// We care only about ISimpleChatService services
FindCriteria criteria = new FindCriteria(typeof(ISimpleChatService));
if (criteria.IsMatch(endpointDiscoveryMetadata))
{
endpointDiscoveryMetadata.WriteLine("Adding");
Cache.Add(endpointDiscoveryMetadata);
}
return new CompletedAsyncResult(callback, state);
}
private void OnOfflineAnnouncement(object sender, AnnouncementEventArgs e)
{
EndpointDiscoveryMetadata metadata =
e.EndpointDiscoveryMetadata;
FindCriteria criteria =
new FindCriteria(typeof(ISimpleChatService));
if (criteria.IsMatch(metadata))
{
this.RemoveUser(metadata.Address.Uri);
}
}
