[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.IO;
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| 39 |
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| 40 | namespace Google.ProtocolBuffers
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| 41 | {
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| 42 | /// <summary>
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| 43 | /// Implementation of the non-generic IMessage interface as far as possible.
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| 44 | /// </summary>
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| 45 | public abstract partial class AbstractBuilderLite<TMessage, TBuilder> : IBuilderLite<TMessage, TBuilder>
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| 46 | where TMessage : AbstractMessageLite<TMessage, TBuilder>
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| 47 | where TBuilder : AbstractBuilderLite<TMessage, TBuilder>
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| 48 | {
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| 49 | protected abstract TBuilder ThisBuilder { get; }
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| 50 |
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| 51 | public abstract bool IsInitialized { get; }
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| 52 |
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| 53 | public abstract TBuilder Clear();
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| 54 |
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| 55 | public abstract TBuilder Clone();
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| 56 |
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| 57 | public abstract TMessage Build();
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| 58 |
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| 59 | public abstract TMessage BuildPartial();
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| 60 |
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| 61 | public abstract TBuilder MergeFrom(IMessageLite other);
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| 62 |
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| 63 | public abstract TBuilder MergeFrom(ICodedInputStream input, ExtensionRegistry extensionRegistry);
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| 64 |
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| 65 | public abstract TMessage DefaultInstanceForType { get; }
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| 66 |
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| 67 | #region IBuilderLite<TMessage,TBuilder> Members
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| 68 |
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| 69 | public virtual TBuilder MergeFrom(ICodedInputStream input)
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| 70 | {
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| 71 | return MergeFrom(input, ExtensionRegistry.CreateInstance());
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| 72 | }
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| 73 |
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| 74 | public TBuilder MergeDelimitedFrom(Stream input)
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| 75 | {
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| 76 | return MergeDelimitedFrom(input, ExtensionRegistry.CreateInstance());
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| 77 | }
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| 78 |
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| 79 | public TBuilder MergeDelimitedFrom(Stream input, ExtensionRegistry extensionRegistry)
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| 80 | {
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| 81 | int size = (int) CodedInputStream.ReadRawVarint32(input);
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| 82 | Stream limitedStream = new LimitedInputStream(input, size);
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| 83 | return MergeFrom(limitedStream, extensionRegistry);
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| 84 | }
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| 85 |
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| 86 | public TBuilder MergeFrom(ByteString data)
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| 87 | {
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| 88 | return MergeFrom(data, ExtensionRegistry.CreateInstance());
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| 89 | }
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| 90 |
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| 91 | public TBuilder MergeFrom(ByteString data, ExtensionRegistry extensionRegistry)
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| 92 | {
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| 93 | CodedInputStream input = data.CreateCodedInput();
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| 94 | MergeFrom(input, extensionRegistry);
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| 95 | input.CheckLastTagWas(0);
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| 96 | return ThisBuilder;
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| 97 | }
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| 98 |
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| 99 | public TBuilder MergeFrom(byte[] data)
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| 100 | {
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| 101 | CodedInputStream input = CodedInputStream.CreateInstance(data);
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| 102 | MergeFrom(input);
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| 103 | input.CheckLastTagWas(0);
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| 104 | return ThisBuilder;
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| 105 | }
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| 106 |
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| 107 | public TBuilder MergeFrom(byte[] data, ExtensionRegistry extensionRegistry)
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| 108 | {
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| 109 | CodedInputStream input = CodedInputStream.CreateInstance(data);
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| 110 | MergeFrom(input, extensionRegistry);
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| 111 | input.CheckLastTagWas(0);
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| 112 | return ThisBuilder;
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| 113 | }
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| 114 |
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| 115 | public TBuilder MergeFrom(Stream input)
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| 116 | {
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| 117 | CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
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| 118 | MergeFrom(codedInput);
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| 119 | codedInput.CheckLastTagWas(0);
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| 120 | return ThisBuilder;
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| 121 | }
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| 122 |
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| 123 | public TBuilder MergeFrom(Stream input, ExtensionRegistry extensionRegistry)
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| 124 | {
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| 125 | CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
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| 126 | MergeFrom(codedInput, extensionRegistry);
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| 127 | codedInput.CheckLastTagWas(0);
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| 128 | return ThisBuilder;
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| 129 | }
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| 130 |
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| 131 | #endregion
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| 132 |
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| 133 | #region Explicit definitions
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| 134 |
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| 135 | IBuilderLite IBuilderLite.WeakClear()
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| 136 | {
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| 137 | return Clear();
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| 138 | }
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| 139 |
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| 140 | IBuilderLite IBuilderLite.WeakMergeFrom(IMessageLite message)
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| 141 | {
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| 142 | return MergeFrom(message);
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| 143 | }
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| 144 |
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| 145 | IBuilderLite IBuilderLite.WeakMergeFrom(ByteString data)
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| 146 | {
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| 147 | return MergeFrom(data);
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| 148 | }
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| 149 |
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| 150 | IBuilderLite IBuilderLite.WeakMergeFrom(ByteString data, ExtensionRegistry registry)
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| 151 | {
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| 152 | return MergeFrom(data, registry);
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| 153 | }
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| 154 |
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| 155 | IBuilderLite IBuilderLite.WeakMergeFrom(ICodedInputStream input)
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| 156 | {
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| 157 | return MergeFrom(input);
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| 158 | }
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| 159 |
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| 160 | IBuilderLite IBuilderLite.WeakMergeFrom(ICodedInputStream input, ExtensionRegistry registry)
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| 161 | {
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| 162 | return MergeFrom(input, registry);
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| 163 | }
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| 164 |
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| 165 | IMessageLite IBuilderLite.WeakBuild()
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| 166 | {
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| 167 | return Build();
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| 168 | }
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| 169 |
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| 170 | IMessageLite IBuilderLite.WeakBuildPartial()
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| 171 | {
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| 172 | return BuildPartial();
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| 173 | }
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| 174 |
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| 175 | IBuilderLite IBuilderLite.WeakClone()
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| 176 | {
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| 177 | return Clone();
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| 178 | }
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| 179 |
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| 180 | IMessageLite IBuilderLite.WeakDefaultInstanceForType
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| 181 | {
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| 182 | get { return DefaultInstanceForType; }
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| 183 | }
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| 184 |
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| 185 | #endregion
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| 186 |
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| 187 | #region LimitedInputStream
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| 188 |
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| 189 | /// <summary>
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| 190 | /// Stream implementation which proxies another stream, only allowing a certain amount
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| 191 | /// of data to be read. Note that this is only used to read delimited streams, so it
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| 192 | /// doesn't attempt to implement everything.
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| 193 | /// </summary>
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| 194 | private class LimitedInputStream : Stream
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| 195 | {
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| 196 | private readonly Stream proxied;
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| 197 | private int bytesLeft;
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| 198 |
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| 199 | internal LimitedInputStream(Stream proxied, int size)
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| 200 | {
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| 201 | this.proxied = proxied;
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| 202 | bytesLeft = size;
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| 203 | }
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| 204 |
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| 205 | public override bool CanRead
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| 206 | {
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| 207 | get { return true; }
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| 208 | }
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| 209 |
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| 210 | public override bool CanSeek
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| 211 | {
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| 212 | get { return false; }
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| 213 | }
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| 214 |
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| 215 | public override bool CanWrite
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| 216 | {
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| 217 | get { return false; }
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| 218 | }
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| 219 |
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| 220 | public override void Flush()
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| 221 | {
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| 222 | }
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| 223 |
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| 224 | public override long Length
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| 225 | {
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| 226 | get { throw new NotSupportedException(); }
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| 227 | }
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| 228 |
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| 229 | public override long Position
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| 230 | {
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| 231 | get { throw new NotSupportedException(); }
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| 232 | set { throw new NotSupportedException(); }
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| 233 | }
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| 234 |
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| 235 | public override int Read(byte[] buffer, int offset, int count)
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| 236 | {
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| 237 | if (bytesLeft > 0)
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| 238 | {
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| 239 | int bytesRead = proxied.Read(buffer, offset, Math.Min(bytesLeft, count));
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| 240 | bytesLeft -= bytesRead;
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| 241 | return bytesRead;
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| 242 | }
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| 243 | return 0;
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| 244 | }
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| 245 |
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| 246 | public override long Seek(long offset, SeekOrigin origin)
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| 247 | {
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| 248 | throw new NotSupportedException();
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| 249 | }
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| 250 |
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| 251 | public override void SetLength(long value)
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| 252 | {
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| 253 | throw new NotSupportedException();
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| 254 | }
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| 255 |
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| 256 | public override void Write(byte[] buffer, int offset, int count)
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| 257 | {
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| 258 | throw new NotSupportedException();
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| 259 | }
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| 260 | }
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| 261 |
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| 262 | #endregion
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| 263 | }
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| 264 | } |
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