| #region Copyright notice and license |
| // Protocol Buffers - Google's data interchange format |
| // Copyright 2015 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| #endregion |
| |
| using Google.Protobuf.Reflection; |
| |
| namespace Google.Protobuf.WellKnownTypes |
| { |
| public partial class Any |
| { |
| // This could be moved to MessageDescriptor if we wanted to, but keeping it here means |
| // all the Any-specific code is in the same place. |
| private static string GetTypeUrl(MessageDescriptor descriptor) |
| { |
| return "type.googleapis.com/" + descriptor.FullName; |
| } |
| |
| /// <summary> |
| /// Unpacks the content of this Any message into the target message type, |
| /// which must match the type URL within this Any message. |
| /// </summary> |
| /// <typeparam name="T">The type of message to unpack the content into.</typeparam> |
| /// <returns>The unpacked message.</returns> |
| /// <exception cref="InvalidProtocolBufferException">The target message type doesn't match the type URL in this message</exception> |
| public T Unpack<T>() where T : IMessage, new() |
| { |
| // Note: this doesn't perform as well is it might. We could take a MessageParser<T> in an alternative overload, |
| // which would be expected to perform slightly better... although the difference is likely to be negligible. |
| T target = new T(); |
| string targetTypeUrl = GetTypeUrl(target.Descriptor); |
| if (TypeUrl != targetTypeUrl) |
| { |
| throw new InvalidProtocolBufferException(string.Format("Type url for {0} is {1}; Any message's type url is {2}", |
| target.Descriptor.Name, targetTypeUrl, TypeUrl)); |
| } |
| target.MergeFrom(Value); |
| return target; |
| } |
| |
| /// <summary> |
| /// Packs the specified message into an Any message. |
| /// </summary> |
| /// <param name="message">The message to pack.</param> |
| /// <returns>An Any message with the content and type URL of <paramref name="message"/>.</returns> |
| public static Any Pack(IMessage message) |
| { |
| ProtoPreconditions.CheckNotNull(message, "message"); |
| return new Any { TypeUrl = GetTypeUrl(message.Descriptor), Value = message.ToByteString() }; |
| } |
| } |
| } |