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//-----------------------------------------------------------------------
// <copyright file="IIdentifierDiscoveryService.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OpenId {
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Text;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OpenId.RelyingParty;
/// <summary>
/// A module that provides discovery services for OpenID identifiers.
/// </summary>
[ContractClass(typeof(IIdentifierDiscoveryServiceContract))]
public interface IIdentifierDiscoveryService {
/// <summary>
/// Performs discovery on the specified identifier.
/// </summary>
/// <param name="identifier">The identifier to perform discovery on.</param>
/// <param name="requestHandler">The means to place outgoing HTTP requests.</param>
/// <param name="abortDiscoveryChain">if set to <c>true</c>, no further discovery services will be called for this identifier.</param>
/// <returns>
/// A sequence of service endpoints yielded by discovery. Must not be null, but may be empty.
/// </returns>
[SuppressMessage("Microsoft.Design", "CA1021:AvoidOutParameters", MessageId = "2#", Justification = "By design")]
[Pure]
IEnumerable<IdentifierDiscoveryResult> Discover(Identifier identifier, IDirectWebRequestHandler requestHandler, out bool abortDiscoveryChain);
}
/// <summary>
/// Code contract for the <see cref="IIdentifierDiscoveryService"/> interface.
/// </summary>
[ContractClassFor(typeof(IIdentifierDiscoveryService))]
internal abstract class IIdentifierDiscoveryServiceContract : IIdentifierDiscoveryService {
/// <summary>
/// Prevents a default instance of the <see cref="IIdentifierDiscoveryServiceContract"/> class from being created.
/// </summary>
private IIdentifierDiscoveryServiceContract() {
}
#region IDiscoveryService Members
/// <summary>
/// Performs discovery on the specified identifier.
/// </summary>
/// <param name="identifier">The identifier to perform discovery on.</param>
/// <param name="requestHandler">The means to place outgoing HTTP requests.</param>
/// <param name="abortDiscoveryChain">if set to <c>true</c>, no further discovery services will be called for this identifier.</param>
/// <returns>
/// A sequence of service endpoints yielded by discovery. Must not be null, but may be empty.
/// </returns>
IEnumerable<IdentifierDiscoveryResult> IIdentifierDiscoveryService.Discover(Identifier identifier, IDirectWebRequestHandler requestHandler, out bool abortDiscoveryChain) {
Requires.NotNull(identifier, "identifier");
Requires.NotNull(requestHandler, "requestHandler");
Contract.Ensures(Contract.Result<IEnumerable<IdentifierDiscoveryResult>>() != null);
throw new NotImplementedException();
}
#endregion
}
}
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