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Diffstat (limited to 'csharp/src/ProtocolBuffers/AbstractBuilderLite.cs')
| -rw-r--r-- | csharp/src/ProtocolBuffers/AbstractBuilderLite.cs | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers/AbstractBuilderLite.cs b/csharp/src/ProtocolBuffers/AbstractBuilderLite.cs new file mode 100644 index 00000000..a7fedeae --- /dev/null +++ b/csharp/src/ProtocolBuffers/AbstractBuilderLite.cs @@ -0,0 +1,264 @@ +#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.IO;
+
+namespace Google.ProtocolBuffers
+{
+ /// <summary>
+ /// Implementation of the non-generic IMessage interface as far as possible.
+ /// </summary>
+ public abstract partial class AbstractBuilderLite<TMessage, TBuilder> : IBuilderLite<TMessage, TBuilder>
+ where TMessage : AbstractMessageLite<TMessage, TBuilder>
+ where TBuilder : AbstractBuilderLite<TMessage, TBuilder>
+ {
+ protected abstract TBuilder ThisBuilder { get; }
+
+ public abstract bool IsInitialized { get; }
+
+ public abstract TBuilder Clear();
+
+ public abstract TBuilder Clone();
+
+ public abstract TMessage Build();
+
+ public abstract TMessage BuildPartial();
+
+ public abstract TBuilder MergeFrom(IMessageLite other);
+
+ public abstract TBuilder MergeFrom(ICodedInputStream input, ExtensionRegistry extensionRegistry);
+
+ public abstract TMessage DefaultInstanceForType { get; }
+
+ #region IBuilderLite<TMessage,TBuilder> Members
+
+ public virtual TBuilder MergeFrom(ICodedInputStream input)
+ {
+ return MergeFrom(input, ExtensionRegistry.CreateInstance());
+ }
+
+ public TBuilder MergeDelimitedFrom(Stream input)
+ {
+ return MergeDelimitedFrom(input, ExtensionRegistry.CreateInstance());
+ }
+
+ public TBuilder MergeDelimitedFrom(Stream input, ExtensionRegistry extensionRegistry)
+ {
+ int size = (int) CodedInputStream.ReadRawVarint32(input);
+ Stream limitedStream = new LimitedInputStream(input, size);
+ return MergeFrom(limitedStream, extensionRegistry);
+ }
+
+ public TBuilder MergeFrom(ByteString data)
+ {
+ return MergeFrom(data, ExtensionRegistry.CreateInstance());
+ }
+
+ public TBuilder MergeFrom(ByteString data, ExtensionRegistry extensionRegistry)
+ {
+ CodedInputStream input = data.CreateCodedInput();
+ MergeFrom(input, extensionRegistry);
+ input.CheckLastTagWas(0);
+ return ThisBuilder;
+ }
+
+ public TBuilder MergeFrom(byte[] data)
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(data);
+ MergeFrom(input);
+ input.CheckLastTagWas(0);
+ return ThisBuilder;
+ }
+
+ public TBuilder MergeFrom(byte[] data, ExtensionRegistry extensionRegistry)
+ {
+ CodedInputStream input = CodedInputStream.CreateInstance(data);
+ MergeFrom(input, extensionRegistry);
+ input.CheckLastTagWas(0);
+ return ThisBuilder;
+ }
+
+ public TBuilder MergeFrom(Stream input)
+ {
+ CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
+ MergeFrom(codedInput);
+ codedInput.CheckLastTagWas(0);
+ return ThisBuilder;
+ }
+
+ public TBuilder MergeFrom(Stream input, ExtensionRegistry extensionRegistry)
+ {
+ CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
+ MergeFrom(codedInput, extensionRegistry);
+ codedInput.CheckLastTagWas(0);
+ return ThisBuilder;
+ }
+
+ #endregion
+
+ #region Explicit definitions
+
+ IBuilderLite IBuilderLite.WeakClear()
+ {
+ return Clear();
+ }
+
+ IBuilderLite IBuilderLite.WeakMergeFrom(IMessageLite message)
+ {
+ return MergeFrom(message);
+ }
+
+ IBuilderLite IBuilderLite.WeakMergeFrom(ByteString data)
+ {
+ return MergeFrom(data);
+ }
+
+ IBuilderLite IBuilderLite.WeakMergeFrom(ByteString data, ExtensionRegistry registry)
+ {
+ return MergeFrom(data, registry);
+ }
+
+ IBuilderLite IBuilderLite.WeakMergeFrom(ICodedInputStream input)
+ {
+ return MergeFrom(input);
+ }
+
+ IBuilderLite IBuilderLite.WeakMergeFrom(ICodedInputStream input, ExtensionRegistry registry)
+ {
+ return MergeFrom(input, registry);
+ }
+
+ IMessageLite IBuilderLite.WeakBuild()
+ {
+ return Build();
+ }
+
+ IMessageLite IBuilderLite.WeakBuildPartial()
+ {
+ return BuildPartial();
+ }
+
+ IBuilderLite IBuilderLite.WeakClone()
+ {
+ return Clone();
+ }
+
+ IMessageLite IBuilderLite.WeakDefaultInstanceForType
+ {
+ get { return DefaultInstanceForType; }
+ }
+
+ #endregion
+
+ #region LimitedInputStream
+
+ /// <summary>
+ /// Stream implementation which proxies another stream, only allowing a certain amount
+ /// of data to be read. Note that this is only used to read delimited streams, so it
+ /// doesn't attempt to implement everything.
+ /// </summary>
+ private class LimitedInputStream : Stream
+ {
+ private readonly Stream proxied;
+ private int bytesLeft;
+
+ internal LimitedInputStream(Stream proxied, int size)
+ {
+ this.proxied = proxied;
+ bytesLeft = size;
+ }
+
+ public override bool CanRead
+ {
+ get { return true; }
+ }
+
+ public override bool CanSeek
+ {
+ get { return false; }
+ }
+
+ public override bool CanWrite
+ {
+ get { return false; }
+ }
+
+ public override void Flush()
+ {
+ }
+
+ public override long Length
+ {
+ get { throw new NotSupportedException(); }
+ }
+
+ public override long Position
+ {
+ get { throw new NotSupportedException(); }
+ set { throw new NotSupportedException(); }
+ }
+
+ public override int Read(byte[] buffer, int offset, int count)
+ {
+ if (bytesLeft > 0)
+ {
+ int bytesRead = proxied.Read(buffer, offset, Math.Min(bytesLeft, count));
+ bytesLeft -= bytesRead;
+ return bytesRead;
+ }
+ return 0;
+ }
+
+ public override long Seek(long offset, SeekOrigin origin)
+ {
+ throw new NotSupportedException();
+ }
+
+ public override void SetLength(long value)
+ {
+ throw new NotSupportedException();
+ }
+
+ public override void Write(byte[] buffer, int offset, int count)
+ {
+ throw new NotSupportedException();
+ }
+ }
+
+ #endregion
+ }
+}
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