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| 1 #region Copyright notice and license | |
| 2 // Protocol Buffers - Google's data interchange format | |
| 3 // Copyright 2015 Google Inc. All rights reserved. | |
| 4 // https://developers.google.com/protocol-buffers/ | |
| 5 // | |
| 6 // Redistribution and use in source and binary forms, with or without | |
| 7 // modification, are permitted provided that the following conditions are | |
| 8 // met: | |
| 9 // | |
| 10 // * Redistributions of source code must retain the above copyright | |
| 11 // notice, this list of conditions and the following disclaimer. | |
| 12 // * Redistributions in binary form must reproduce the above | |
| 13 // copyright notice, this list of conditions and the following disclaimer | |
| 14 // in the documentation and/or other materials provided with the | |
| 15 // distribution. | |
| 16 // * Neither the name of Google Inc. nor the names of its | |
| 17 // contributors may be used to endorse or promote products derived from | |
| 18 // this software without specific prior written permission. | |
| 19 // | |
| 20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 31 #endregion | |
| 32 | |
| 33 using System.IO; | |
| 34 | |
| 35 namespace Google.Protobuf | |
| 36 { | |
| 37 /// <summary> | |
| 38 /// Extension methods on <see cref="IMessage"/> and <see cref="IMessage{T}"/
>. | |
| 39 /// </summary> | |
| 40 public static class MessageExtensions | |
| 41 { | |
| 42 /// <summary> | |
| 43 /// Merges data from the given byte array into an existing message. | |
| 44 /// </summary> | |
| 45 /// <param name="message">The message to merge the data into.</param> | |
| 46 /// <param name="data">The data to merge, which must be protobuf-encoded
binary data.</param> | |
| 47 public static void MergeFrom(this IMessage message, byte[] data) | |
| 48 { | |
| 49 Preconditions.CheckNotNull(message, "message"); | |
| 50 Preconditions.CheckNotNull(data, "data"); | |
| 51 CodedInputStream input = new CodedInputStream(data); | |
| 52 message.MergeFrom(input); | |
| 53 input.CheckReadEndOfStreamTag(); | |
| 54 } | |
| 55 | |
| 56 /// <summary> | |
| 57 /// Merges data from the given byte string into an existing message. | |
| 58 /// </summary> | |
| 59 /// <param name="message">The message to merge the data into.</param> | |
| 60 /// <param name="data">The data to merge, which must be protobuf-encoded
binary data.</param> | |
| 61 public static void MergeFrom(this IMessage message, ByteString data) | |
| 62 { | |
| 63 Preconditions.CheckNotNull(message, "message"); | |
| 64 Preconditions.CheckNotNull(data, "data"); | |
| 65 CodedInputStream input = data.CreateCodedInput(); | |
| 66 message.MergeFrom(input); | |
| 67 input.CheckReadEndOfStreamTag(); | |
| 68 } | |
| 69 | |
| 70 /// <summary> | |
| 71 /// Merges data from the given stream into an existing message. | |
| 72 /// </summary> | |
| 73 /// <param name="message">The message to merge the data into.</param> | |
| 74 /// <param name="input">Stream containing the data to merge, which must
be protobuf-encoded binary data.</param> | |
| 75 public static void MergeFrom(this IMessage message, Stream input) | |
| 76 { | |
| 77 Preconditions.CheckNotNull(message, "message"); | |
| 78 Preconditions.CheckNotNull(input, "input"); | |
| 79 CodedInputStream codedInput = new CodedInputStream(input); | |
| 80 message.MergeFrom(codedInput); | |
| 81 codedInput.CheckReadEndOfStreamTag(); | |
| 82 } | |
| 83 | |
| 84 /// <summary> | |
| 85 /// Merges length-delimited data from the given stream into an existing
message. | |
| 86 /// </summary> | |
| 87 /// <remarks> | |
| 88 /// The stream is expected to contain a length and then the data. Only t
he amount of data | |
| 89 /// specified by the length will be consumed. | |
| 90 /// </remarks> | |
| 91 /// <param name="message">The message to merge the data into.</param> | |
| 92 /// <param name="input">Stream containing the data to merge, which must
be protobuf-encoded binary data.</param> | |
| 93 public static void MergeDelimitedFrom(this IMessage message, Stream inpu
t) | |
| 94 { | |
| 95 Preconditions.CheckNotNull(message, "message"); | |
| 96 Preconditions.CheckNotNull(input, "input"); | |
| 97 int size = (int) CodedInputStream.ReadRawVarint32(input); | |
| 98 Stream limitedStream = new LimitedInputStream(input, size); | |
| 99 message.MergeFrom(limitedStream); | |
| 100 } | |
| 101 | |
| 102 /// <summary> | |
| 103 /// Converts the given message into a byte array in protobuf encoding. | |
| 104 /// </summary> | |
| 105 /// <param name="message">The message to convert.</param> | |
| 106 /// <returns>The message data as a byte array.</returns> | |
| 107 public static byte[] ToByteArray(this IMessage message) | |
| 108 { | |
| 109 Preconditions.CheckNotNull(message, "message"); | |
| 110 byte[] result = new byte[message.CalculateSize()]; | |
| 111 CodedOutputStream output = new CodedOutputStream(result); | |
| 112 message.WriteTo(output); | |
| 113 output.CheckNoSpaceLeft(); | |
| 114 return result; | |
| 115 } | |
| 116 | |
| 117 /// <summary> | |
| 118 /// Writes the given message data to the given stream in protobuf encodi
ng. | |
| 119 /// </summary> | |
| 120 /// <param name="message">The message to write to the stream.</param> | |
| 121 /// <param name="output">The stream to write to.</param> | |
| 122 public static void WriteTo(this IMessage message, Stream output) | |
| 123 { | |
| 124 Preconditions.CheckNotNull(message, "message"); | |
| 125 Preconditions.CheckNotNull(output, "output"); | |
| 126 CodedOutputStream codedOutput = new CodedOutputStream(output); | |
| 127 message.WriteTo(codedOutput); | |
| 128 codedOutput.Flush(); | |
| 129 } | |
| 130 | |
| 131 /// <summary> | |
| 132 /// Writes the length and then data of the given message to a stream. | |
| 133 /// </summary> | |
| 134 /// <param name="message">The message to write.</param> | |
| 135 /// <param name="output">The output stream to write to.</param> | |
| 136 public static void WriteDelimitedTo(this IMessage message, Stream output
) | |
| 137 { | |
| 138 Preconditions.CheckNotNull(message, "message"); | |
| 139 Preconditions.CheckNotNull(output, "output"); | |
| 140 CodedOutputStream codedOutput = new CodedOutputStream(output); | |
| 141 codedOutput.WriteRawVarint32((uint)message.CalculateSize()); | |
| 142 message.WriteTo(codedOutput); | |
| 143 codedOutput.Flush(); | |
| 144 } | |
| 145 | |
| 146 /// <summary> | |
| 147 /// Converts the given message into a byte string in protobuf encoding. | |
| 148 /// </summary> | |
| 149 /// <param name="message">The message to convert.</param> | |
| 150 /// <returns>The message data as a byte string.</returns> | |
| 151 public static ByteString ToByteString(this IMessage message) | |
| 152 { | |
| 153 Preconditions.CheckNotNull(message, "message"); | |
| 154 return ByteString.AttachBytes(message.ToByteArray()); | |
| 155 } | |
| 156 } | |
| 157 } | |
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Chromium Code Reviews
Issue 1322483002:
Revert https://codereview.chromium.org/1291903002 (protobuf roll). (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master