#region Copyright notice and license | |
// Protocol Buffers - Google's data interchange format | |
// Copyright 2008 Google Inc. All rights reserved. | |
// http://github.com/jskeet/dotnet-protobufs/ | |
// Original C++/Java/Python code: | |
// http://code.google.com/p/protobuf/ | |
// | |
// 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 System; | |
using System.Collections; | |
using System.Collections.Generic; | |
using Google.ProtocolBuffers.Descriptors; | |
using Google.ProtocolBuffers.FieldAccess; | |
namespace Google.ProtocolBuffers | |
{ | |
/// <summary> | |
/// All generated protocol message builder classes extend this class. It implements | |
/// most of the IBuilder interface using reflection. Users can ignore this class | |
/// as an implementation detail. | |
/// </summary> | |
public abstract partial class GeneratedBuilder<TMessage, TBuilder> : AbstractBuilder<TMessage, TBuilder> | |
where TMessage : GeneratedMessage<TMessage, TBuilder> | |
where TBuilder : GeneratedBuilder<TMessage, TBuilder>, new() | |
{ | |
/// <summary> | |
/// Returns the message being built at the moment. | |
/// </summary> | |
protected abstract TMessage MessageBeingBuilt { get; } | |
protected internal FieldAccessorTable<TMessage, TBuilder> InternalFieldAccessors | |
{ | |
get { return DefaultInstanceForType.FieldAccessorsFromBuilder; } | |
} | |
public override IDictionary<FieldDescriptor, object> AllFields | |
{ | |
get { return MessageBeingBuilt.AllFields; } | |
} | |
public override object this[FieldDescriptor field] | |
{ | |
get | |
{ | |
// For repeated fields, the underlying list object is still modifiable at this point. | |
// Make sure not to expose the modifiable list to the caller. | |
return field.IsRepeated | |
? InternalFieldAccessors[field].GetRepeatedWrapper(ThisBuilder) | |
: MessageBeingBuilt[field]; | |
} | |
set { InternalFieldAccessors[field].SetValue(ThisBuilder, value); } | |
} | |
/// <summary> | |
/// Called by derived classes to parse an unknown field. | |
/// </summary> | |
/// <returns>true unless the tag is an end-group tag</returns> | |
[CLSCompliant(false)] | |
protected virtual bool ParseUnknownField(ICodedInputStream input, UnknownFieldSet.Builder unknownFields, | |
ExtensionRegistry extensionRegistry, uint tag, string fieldName) | |
{ | |
return unknownFields.MergeFieldFrom(tag, input); | |
} | |
public override MessageDescriptor DescriptorForType | |
{ | |
get { return DefaultInstanceForType.DescriptorForType; } | |
} | |
public override int GetRepeatedFieldCount(FieldDescriptor field) | |
{ | |
return MessageBeingBuilt.GetRepeatedFieldCount(field); | |
} | |
public override object this[FieldDescriptor field, int index] | |
{ | |
get { return MessageBeingBuilt[field, index]; } | |
set { InternalFieldAccessors[field].SetRepeated(ThisBuilder, index, value); } | |
} | |
public override bool HasField(FieldDescriptor field) | |
{ | |
return MessageBeingBuilt.HasField(field); | |
} | |
public override IBuilder CreateBuilderForField(FieldDescriptor field) | |
{ | |
return InternalFieldAccessors[field].CreateBuilder(); | |
} | |
public override TBuilder ClearField(FieldDescriptor field) | |
{ | |
InternalFieldAccessors[field].Clear(ThisBuilder); | |
return ThisBuilder; | |
} | |
public override TBuilder MergeFrom(TMessage other) | |
{ | |
if (other.DescriptorForType != InternalFieldAccessors.Descriptor) | |
{ | |
throw new ArgumentException("Message type mismatch"); | |
} | |
foreach (KeyValuePair<FieldDescriptor, object> entry in other.AllFields) | |
{ | |
FieldDescriptor field = entry.Key; | |
if (field.IsRepeated) | |
{ | |
// Concatenate repeated fields | |
foreach (object element in (IEnumerable) entry.Value) | |
{ | |
AddRepeatedField(field, element); | |
} | |
} | |
else if (field.MappedType == MappedType.Message && HasField(field)) | |
{ | |
// Merge singular embedded messages | |
IMessageLite oldValue = (IMessageLite) this[field]; | |
this[field] = oldValue.WeakCreateBuilderForType() | |
.WeakMergeFrom(oldValue) | |
.WeakMergeFrom((IMessageLite) entry.Value) | |
.WeakBuildPartial(); | |
} | |
else | |
{ | |
// Just overwrite | |
this[field] = entry.Value; | |
} | |
} | |
//Fix for unknown fields not merging, see java's AbstractMessage.Builder<T> line 236 | |
MergeUnknownFields(other.UnknownFields); | |
return ThisBuilder; | |
} | |
public override TBuilder MergeUnknownFields(UnknownFieldSet unknownFields) | |
{ | |
if (unknownFields != UnknownFieldSet.DefaultInstance) | |
{ | |
TMessage result = MessageBeingBuilt; | |
result.SetUnknownFields(UnknownFieldSet.CreateBuilder(result.UnknownFields) | |
.MergeFrom(unknownFields) | |
.Build()); | |
} | |
return ThisBuilder; | |
} | |
public override TBuilder AddRepeatedField(FieldDescriptor field, object value) | |
{ | |
InternalFieldAccessors[field].AddRepeated(ThisBuilder, value); | |
return ThisBuilder; | |
} | |
/// <summary> | |
/// Like Build(), but will wrap UninitializedMessageException in | |
/// InvalidProtocolBufferException. | |
/// </summary> | |
public TMessage BuildParsed() | |
{ | |
if (!IsInitialized) | |
{ | |
throw new UninitializedMessageException(MessageBeingBuilt).AsInvalidProtocolBufferException(); | |
} | |
return BuildPartial(); | |
} | |
/// <summary> | |
/// Implementation of <see cref="IBuilder{TMessage, TBuilder}.Build" />. | |
/// </summary> | |
public override TMessage Build() | |
{ | |
// If the message is null, we'll throw a more appropriate exception in BuildPartial. | |
if (!IsInitialized) | |
{ | |
throw new UninitializedMessageException(MessageBeingBuilt); | |
} | |
return BuildPartial(); | |
} | |
public override UnknownFieldSet UnknownFields | |
{ | |
get { return MessageBeingBuilt.UnknownFields; } | |
set { MessageBeingBuilt.SetUnknownFields(value); } | |
} | |
} | |
} |