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author | Andrew Arnott <andrewarnott@gmail.com> | 2012-01-12 08:40:50 -0800 |
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committer | Andrew Arnott <andrewarnott@gmail.com> | 2012-01-12 08:42:14 -0800 |
commit | af21cdaf77ca72f54e04f22268b740ce262582fa (patch) | |
tree | 9b158e3bff1f56264bccb9e45c8b807816beece6 /src/DotNetOpenAuth.Core/Messaging/IMessage.cs | |
parent | a73f2a4830aaa2afcb3f13da2206d9b011dad7fb (diff) | |
download | DotNetOpenAuth-af21cdaf77ca72f54e04f22268b740ce262582fa.zip DotNetOpenAuth-af21cdaf77ca72f54e04f22268b740ce262582fa.tar.gz DotNetOpenAuth-af21cdaf77ca72f54e04f22268b740ce262582fa.tar.bz2 |
Renamed assembly DotNetOpenAuth.Messaging(.UI) to DotNetOpenAuth.Core(.UI)
Diffstat (limited to 'src/DotNetOpenAuth.Core/Messaging/IMessage.cs')
-rw-r--r-- | src/DotNetOpenAuth.Core/Messaging/IMessage.cs | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Core/Messaging/IMessage.cs b/src/DotNetOpenAuth.Core/Messaging/IMessage.cs new file mode 100644 index 0000000..e91a160 --- /dev/null +++ b/src/DotNetOpenAuth.Core/Messaging/IMessage.cs @@ -0,0 +1,100 @@ +//----------------------------------------------------------------------- +// <copyright file="IMessage.cs" company="Andrew Arnott"> +// Copyright (c) Andrew Arnott. All rights reserved. +// </copyright> +//----------------------------------------------------------------------- + +namespace DotNetOpenAuth.Messaging { + using System; + using System.Collections.Generic; + using System.Diagnostics.Contracts; + using System.Text; + + /// <summary> + /// The interface that classes must implement to be serialized/deserialized + /// as protocol or extension messages. + /// </summary> + [ContractClass(typeof(IMessageContract))] + public interface IMessage { + /// <summary> + /// Gets the version of the protocol or extension this message is prepared to implement. + /// </summary> + /// <remarks> + /// Implementations of this interface should ensure that this property never returns null. + /// </remarks> + Version Version { get; } + + /// <summary> + /// Gets the extra, non-standard Protocol parameters included in the message. + /// </summary> + /// <remarks> + /// Implementations of this interface should ensure that this property never returns null. + /// </remarks> + IDictionary<string, string> ExtraData { get; } + + /// <summary> + /// Checks the message state for conformity to the protocol specification + /// and throws an exception if the message is invalid. + /// </summary> + /// <remarks> + /// <para>Some messages have required fields, or combinations of fields that must relate to each other + /// in specialized ways. After deserializing a message, this method checks the state of the + /// message to see if it conforms to the protocol.</para> + /// <para>Note that this property should <i>not</i> check signatures or perform any state checks + /// outside this scope of this particular message.</para> + /// </remarks> + /// <exception cref="ProtocolException">Thrown if the message is invalid.</exception> + void EnsureValidMessage(); + } + + /// <summary> + /// Code contract for the <see cref="IMessage"/> interface. + /// </summary> + [ContractClassFor(typeof(IMessage))] + internal abstract class IMessageContract : IMessage { + /// <summary> + /// Prevents a default instance of the <see cref="IMessageContract"/> class from being created. + /// </summary> + private IMessageContract() { + } + + /// <summary> + /// Gets the version of the protocol or extension this message is prepared to implement. + /// </summary> + Version IMessage.Version { + get { + Contract.Ensures(Contract.Result<Version>() != null); + return default(Version); // dummy return + } + } + + /// <summary> + /// Gets the extra, non-standard Protocol parameters included in the message. + /// </summary> + /// <value></value> + /// <remarks> + /// Implementations of this interface should ensure that this property never returns null. + /// </remarks> + IDictionary<string, string> IMessage.ExtraData { + get { + Contract.Ensures(Contract.Result<IDictionary<string, string>>() != null); + return default(IDictionary<string, string>); + } + } + + /// <summary> + /// Checks the message state for conformity to the protocol specification + /// and throws an exception if the message is invalid. + /// </summary> + /// <remarks> + /// <para>Some messages have required fields, or combinations of fields that must relate to each other + /// in specialized ways. After deserializing a message, this method checks the state of the + /// message to see if it conforms to the protocol.</para> + /// <para>Note that this property should <i>not</i> check signatures or perform any state checks + /// outside this scope of this particular message.</para> + /// </remarks> + /// <exception cref="ProtocolException">Thrown if the message is invalid.</exception> + void IMessage.EnsureValidMessage() { + } + } +} |