[8295] | 1 | #region Copyright notice and license
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| 2 |
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| 3 | // Protocol Buffers - Google's data interchange format
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| 4 | // Copyright 2008 Google Inc. All rights reserved.
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| 5 | // http://github.com/jskeet/dotnet-protobufs/
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| 6 | // Original C++/Java/Python code:
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| 7 | // http://code.google.com/p/protobuf/
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| 8 | //
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| 9 | // Redistribution and use in source and binary forms, with or without
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| 10 | // modification, are permitted provided that the following conditions are
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| 11 | // met:
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| 12 | //
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| 13 | // * Redistributions of source code must retain the above copyright
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| 14 | // notice, this list of conditions and the following disclaimer.
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| 15 | // * Redistributions in binary form must reproduce the above
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| 16 | // copyright notice, this list of conditions and the following disclaimer
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| 17 | // in the documentation and/or other materials provided with the
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| 18 | // distribution.
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| 19 | // * Neither the name of Google Inc. nor the names of its
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| 20 | // contributors may be used to endorse or promote products derived from
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| 21 | // this software without specific prior written permission.
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| 22 | //
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| 23 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 24 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 25 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 26 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 27 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 28 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 29 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 30 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 31 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 32 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 33 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 34 |
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| 35 | #endregion
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| 36 |
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| 37 | using System;
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| 38 | using System.Collections;
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| 39 | using System.Collections.Generic;
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| 40 | using Google.ProtocolBuffers.Descriptors;
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| 41 |
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| 42 | namespace Google.ProtocolBuffers
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| 43 | {
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| 44 | /// <summary>
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| 45 | /// Implementation of the non-generic IMessage interface as far as possible.
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| 46 | /// </summary>
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| 47 | public abstract partial class AbstractBuilder<TMessage, TBuilder> : AbstractBuilderLite<TMessage, TBuilder>,
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| 48 | IBuilder<TMessage, TBuilder>
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| 49 | where TMessage : AbstractMessage<TMessage, TBuilder>
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| 50 | where TBuilder : AbstractBuilder<TMessage, TBuilder>
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| 51 | {
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| 52 | #region Unimplemented members of IBuilder
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| 53 |
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| 54 | public abstract UnknownFieldSet UnknownFields { get; set; }
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| 55 | public abstract IDictionary<FieldDescriptor, object> AllFields { get; }
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| 56 | public abstract object this[FieldDescriptor field] { get; set; }
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| 57 | public abstract MessageDescriptor DescriptorForType { get; }
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| 58 | public abstract int GetRepeatedFieldCount(FieldDescriptor field);
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| 59 | public abstract object this[FieldDescriptor field, int index] { get; set; }
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| 60 | public abstract bool HasField(FieldDescriptor field);
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| 61 | public abstract IBuilder CreateBuilderForField(FieldDescriptor field);
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| 62 | public abstract TBuilder ClearField(FieldDescriptor field);
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| 63 | public abstract TBuilder AddRepeatedField(FieldDescriptor field, object value);
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| 64 |
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| 65 | #endregion
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| 66 |
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| 67 | public TBuilder SetUnknownFields(UnknownFieldSet fields)
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| 68 | {
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| 69 | UnknownFields = fields;
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| 70 | return ThisBuilder;
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| 71 | }
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| 72 |
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| 73 | public override TBuilder Clear()
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| 74 | {
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| 75 | foreach (FieldDescriptor field in AllFields.Keys)
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| 76 | {
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| 77 | ClearField(field);
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| 78 | }
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| 79 | return ThisBuilder;
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| 80 | }
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| 81 |
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| 82 | public override sealed TBuilder MergeFrom(IMessageLite other)
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| 83 | {
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| 84 | if (other is IMessage)
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| 85 | {
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| 86 | return MergeFrom((IMessage) other);
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| 87 | }
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| 88 | throw new ArgumentException("MergeFrom(Message) can only merge messages of the same type.");
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| 89 | }
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| 90 |
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| 91 | /// <summary>
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| 92 | /// Merge the specified other message into the message being
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| 93 | /// built. Merging occurs as follows. For each field:
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| 94 | /// For singular primitive fields, if the field is set in <paramref name="other"/>,
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| 95 | /// then <paramref name="other"/>'s value overwrites the value in this message.
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| 96 | /// For singular message fields, if the field is set in <paramref name="other"/>,
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| 97 | /// it is merged into the corresponding sub-message of this message using the same
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| 98 | /// merging rules.
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| 99 | /// For repeated fields, the elements in <paramref name="other"/> are concatenated
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| 100 | /// with the elements in this message.
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| 101 | /// </summary>
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| 102 | /// <param name="other"></param>
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| 103 | /// <returns></returns>
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| 104 | public abstract TBuilder MergeFrom(TMessage other);
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| 105 |
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| 106 | public virtual TBuilder MergeFrom(IMessage other)
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| 107 | {
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| 108 | if (other.DescriptorForType != DescriptorForType)
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| 109 | {
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| 110 | throw new ArgumentException("MergeFrom(IMessage) can only merge messages of the same type.");
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| 111 | }
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| 112 |
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| 113 | // Note: We don't attempt to verify that other's fields have valid
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| 114 | // types. Doing so would be a losing battle. We'd have to verify
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| 115 | // all sub-messages as well, and we'd have to make copies of all of
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| 116 | // them to insure that they don't change after verification (since
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| 117 | // the Message interface itself cannot enforce immutability of
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| 118 | // implementations).
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| 119 | // TODO(jonskeet): Provide a function somewhere called MakeDeepCopy()
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| 120 | // which allows people to make secure deep copies of messages.
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| 121 | foreach (KeyValuePair<FieldDescriptor, object> entry in other.AllFields)
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| 122 | {
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| 123 | FieldDescriptor field = entry.Key;
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| 124 | if (field.IsRepeated)
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| 125 | {
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| 126 | // Concatenate repeated fields
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| 127 | foreach (object element in (IEnumerable) entry.Value)
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| 128 | {
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| 129 | AddRepeatedField(field, element);
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| 130 | }
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| 131 | }
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| 132 | else if (field.MappedType == MappedType.Message)
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| 133 | {
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| 134 | // Merge singular messages
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| 135 | IMessageLite existingValue = (IMessageLite) this[field];
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| 136 | if (existingValue == existingValue.WeakDefaultInstanceForType)
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| 137 | {
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| 138 | this[field] = entry.Value;
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| 139 | }
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| 140 | else
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| 141 | {
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| 142 | this[field] = existingValue.WeakCreateBuilderForType()
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| 143 | .WeakMergeFrom(existingValue)
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| 144 | .WeakMergeFrom((IMessageLite) entry.Value)
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| 145 | .WeakBuild();
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| 146 | }
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| 147 | }
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| 148 | else
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| 149 | {
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| 150 | // Overwrite simple values
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| 151 | this[field] = entry.Value;
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| 152 | }
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| 153 | }
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| 154 |
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| 155 | //Fix for unknown fields not merging, see java's AbstractMessage.Builder<T> line 236
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| 156 | MergeUnknownFields(other.UnknownFields);
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| 157 |
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| 158 | return ThisBuilder;
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| 159 | }
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| 160 |
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| 161 | public override TBuilder MergeFrom(ICodedInputStream input, ExtensionRegistry extensionRegistry)
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| 162 | {
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| 163 | UnknownFieldSet.Builder unknownFields = UnknownFieldSet.CreateBuilder(UnknownFields);
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| 164 | unknownFields.MergeFrom(input, extensionRegistry, this);
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| 165 | UnknownFields = unknownFields.Build();
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| 166 | return ThisBuilder;
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| 167 | }
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| 168 |
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| 169 | public virtual TBuilder MergeUnknownFields(UnknownFieldSet unknownFields)
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| 170 | {
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| 171 | UnknownFields = UnknownFieldSet.CreateBuilder(UnknownFields)
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| 172 | .MergeFrom(unknownFields)
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| 173 | .Build();
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| 174 | return ThisBuilder;
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| 175 | }
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| 176 |
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| 177 | public virtual IBuilder SetField(FieldDescriptor field, object value)
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| 178 | {
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| 179 | this[field] = value;
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| 180 | return ThisBuilder;
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| 181 | }
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| 182 |
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| 183 | public virtual IBuilder SetRepeatedField(FieldDescriptor field, int index, object value)
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| 184 | {
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| 185 | this[field, index] = value;
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| 186 | return ThisBuilder;
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| 187 | }
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| 188 |
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| 189 | #region Explicit Implementations
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| 190 |
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| 191 | IMessage IBuilder.WeakBuild()
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| 192 | {
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| 193 | return Build();
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| 194 | }
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| 195 |
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| 196 | IBuilder IBuilder.WeakAddRepeatedField(FieldDescriptor field, object value)
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| 197 | {
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| 198 | return AddRepeatedField(field, value);
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| 199 | }
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| 200 |
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| 201 | IBuilder IBuilder.WeakClear()
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| 202 | {
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| 203 | return Clear();
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| 204 | }
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| 205 |
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| 206 | IBuilder IBuilder.WeakMergeFrom(IMessage message)
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| 207 | {
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| 208 | return MergeFrom(message);
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| 209 | }
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| 210 |
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| 211 | IBuilder IBuilder.WeakMergeFrom(ICodedInputStream input)
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| 212 | {
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| 213 | return MergeFrom(input);
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| 214 | }
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| 215 |
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| 216 | IBuilder IBuilder.WeakMergeFrom(ICodedInputStream input, ExtensionRegistry registry)
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| 217 | {
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| 218 | return MergeFrom(input, registry);
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| 219 | }
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| 220 |
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| 221 | IBuilder IBuilder.WeakMergeFrom(ByteString data)
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| 222 | {
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| 223 | return MergeFrom(data);
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| 224 | }
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| 225 |
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| 226 | IBuilder IBuilder.WeakMergeFrom(ByteString data, ExtensionRegistry registry)
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| 227 | {
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| 228 | return MergeFrom(data, registry);
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| 229 | }
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| 230 |
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| 231 | IMessage IBuilder.WeakBuildPartial()
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| 232 | {
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| 233 | return BuildPartial();
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| 234 | }
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| 235 |
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| 236 | IBuilder IBuilder.WeakClone()
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| 237 | {
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| 238 | return Clone();
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| 239 | }
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| 240 |
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| 241 | IMessage IBuilder.WeakDefaultInstanceForType
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| 242 | {
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| 243 | get { return DefaultInstanceForType; }
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| 244 | }
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| 245 |
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| 246 | IBuilder IBuilder.WeakClearField(FieldDescriptor field)
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| 247 | {
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| 248 | return ClearField(field);
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| 249 | }
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| 250 |
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| 251 | #endregion
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| 252 | }
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| 253 | } |
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