95 lines
3.2 KiB
C#
95 lines
3.2 KiB
C#
//----------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//----------------------------------------------------------------
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namespace System.ServiceModel.Discovery
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{
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using System.Collections.ObjectModel;
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using System.Runtime;
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class DefaultDiscoveryService : DiscoveryService
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{
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readonly ReadOnlyCollection<EndpointDiscoveryMetadata> publishedEndpoints;
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public DefaultDiscoveryService(
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DiscoveryServiceExtension discoveryServiceExtension,
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DiscoveryMessageSequenceGenerator discoveryMessageSequenceGenerator,
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int duplicateMessageHistoryLength)
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: base(discoveryMessageSequenceGenerator, duplicateMessageHistoryLength)
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{
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Fx.Assert(discoveryServiceExtension != null, "The discoveryServiceExtension must be non null.");
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this.publishedEndpoints = discoveryServiceExtension.PublishedEndpoints;
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}
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protected override IAsyncResult OnBeginFind(
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FindRequestContext findRequestContext,
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AsyncCallback callback,
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object state)
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{
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this.Match(findRequestContext);
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return new CompletedAsyncResult(callback, state);
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}
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protected override void OnEndFind(IAsyncResult result)
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{
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CompletedAsyncResult.End(result);
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}
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protected override IAsyncResult OnBeginResolve(ResolveCriteria resolveCriteria, AsyncCallback callback, object state)
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{
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return new CompletedAsyncResult<EndpointDiscoveryMetadata>(
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this.Match(resolveCriteria),
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callback,
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state);
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}
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protected override EndpointDiscoveryMetadata OnEndResolve(IAsyncResult result)
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{
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return CompletedAsyncResult<EndpointDiscoveryMetadata>.End(result);
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}
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EndpointDiscoveryMetadata Match(ResolveCriteria criteria)
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{
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for (int i = 0; i < this.publishedEndpoints.Count; i++)
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{
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if (this.publishedEndpoints[i].Address.Equals(criteria.Address))
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{
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return this.publishedEndpoints[i];
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}
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}
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return null;
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}
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void Match(FindRequestContext findRequestContext)
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{
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FindCriteria criteria = findRequestContext.Criteria;
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if (!ScopeCompiler.IsSupportedMatchingRule(criteria.ScopeMatchBy))
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{
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return;
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}
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CompiledScopeCriteria[] compiledScopeCriterias = ScopeCompiler.CompileMatchCriteria(
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criteria.InternalScopes,
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criteria.ScopeMatchBy);
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int matchingEndpointCount = 0;
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for (int i = 0; i < this.publishedEndpoints.Count; i++)
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{
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if (criteria.IsMatch(this.publishedEndpoints[i], compiledScopeCriterias))
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{
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findRequestContext.AddMatchingEndpoint(this.publishedEndpoints[i]);
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matchingEndpointCount++;
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if (matchingEndpointCount == criteria.MaxResults)
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{
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break;
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}
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}
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}
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}
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}
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}
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