C# CodedOutputStream.WriteInt32方法代码示例

 static ByteString EncodeObject (object value, Type type, MemoryStream buffer, CodedOutputStream stream)
 {
     buffer.SetLength (0);
     if (value != null && !type.IsInstanceOfType (value))
         throw new ArgumentException ("Value of type " + value.GetType () + " cannot be encoded to type " + type);
     if (value == null && !type.IsSubclassOf (typeof(RemoteObject)) && !IsACollectionType (type))
         throw new ArgumentException ("null cannot be encoded to type " + type);
     if (value == null)
         stream.WriteUInt64 (0);
     else if (value is Enum)
         stream.WriteInt32 ((int)value);
     else {
         switch (Type.GetTypeCode (type)) {
         case TypeCode.Int32:
             stream.WriteInt32 ((int)value);
             break;
         case TypeCode.Int64:
             stream.WriteInt64 ((long)value);
             break;
         case TypeCode.UInt32:
             stream.WriteUInt32 ((uint)value);
             break;
         case TypeCode.UInt64:
             stream.WriteUInt64 ((ulong)value);
             break;
         case TypeCode.Single:
             stream.WriteFloat ((float)value);
             break;
         case TypeCode.Double:
             stream.WriteDouble ((double)value);
             break;
         case TypeCode.Boolean:
             stream.WriteBool ((bool)value);
             break;
         case TypeCode.String:
             stream.WriteString ((string)value);
             break;
         default:
             if (type.Equals (typeof(byte[])))
                 stream.WriteBytes (ByteString.CopyFrom ((byte[])value));
             else if (IsAClassType (type))
                 stream.WriteUInt64 (((RemoteObject)value).id);
             else if (IsAMessageType (type))
                 ((IMessage)value).WriteTo (buffer);
             else if (IsAListType (type))
                 WriteList (value, type, buffer);
             else if (IsADictionaryType (type))
                 WriteDictionary (value, type, buffer);
             else if (IsASetType (type))
                 WriteSet (value, type, buffer);
             else if (IsATupleType (type))
                 WriteTuple (value, type, buffer);
             else
                 throw new ArgumentException (type + " is not a serializable type");
             break;
         }
     }
     stream.Flush ();
     return ByteString.CopyFrom (buffer.GetBuffer (), 0, (int)buffer.Length);
 }

 static ByteString EncodeObject (object value, MemoryStream buffer, CodedOutputStream stream)
 {
     buffer.SetLength (0);
     if (value == null) {
         stream.WriteUInt64 (0);
     } else if (value is Enum) {
         stream.WriteInt32 ((int)value);
     } else {
         Type type = value.GetType ();
         switch (Type.GetTypeCode (type)) {
         case TypeCode.Int32:
             stream.WriteInt32 ((int)value);
             break;
         case TypeCode.Int64:
             stream.WriteInt64 ((long)value);
             break;
         case TypeCode.UInt32:
             stream.WriteUInt32 ((uint)value);
             break;
         case TypeCode.UInt64:
             stream.WriteUInt64 ((ulong)value);
             break;
         case TypeCode.Single:
             stream.WriteFloat ((float)value);
             break;
         case TypeCode.Double:
             stream.WriteDouble ((double)value);
             break;
         case TypeCode.Boolean:
             stream.WriteBool ((bool)value);
             break;
         case TypeCode.String:
             stream.WriteString ((string)value);
             break;
         default:
             if (type == typeof(byte[]))
                 stream.WriteBytes (ByteString.CopyFrom ((byte[])value));
             else if (TypeUtils.IsAClassType (type))
                 stream.WriteUInt64 (ObjectStore.Instance.AddInstance (value));
             else if (TypeUtils.IsAMessageType (type))
                 WriteMessage (value, stream);
             else if (TypeUtils.IsAListCollectionType (type))
                 WriteList (value, stream);
             else if (TypeUtils.IsADictionaryCollectionType (type))
                 WriteDictionary (value, stream);
             else if (TypeUtils.IsASetCollectionType (type))
                 WriteSet (value, stream);
             else if (TypeUtils.IsATupleCollectionType (type))
                 WriteTuple (value, stream);
             else
                 throw new ArgumentException (type + " is not a serializable type");
             break;
         }
     }
     stream.Flush ();
     return ByteString.CopyFrom (buffer.GetBuffer (), 0, (int)buffer.Length);
 }

        public void SetUp ()
        {
            // Create a request object and get the binary representation of it
            expectedRequest = new Request ("TestService", "ProcedureNoArgsNoReturn");
            using (var stream = new MemoryStream ()) {
                var codedStream = new CodedOutputStream (stream, true);
                codedStream.WriteInt32 (expectedRequest.ToProtobufMessage ().CalculateSize ());
                expectedRequest.ToProtobufMessage ().WriteTo (codedStream);
                codedStream.Flush ();
                requestBytes = stream.ToArray ();
            }

            // Create a response object and get the binary representation of it
            expectedResponse = new Response ();
            expectedResponse.Error = "SomeErrorMessage";
            expectedResponse.Time = 42;
            using (var stream = new MemoryStream ()) {
                var codedStream = new CodedOutputStream (stream, true);
                codedStream.WriteInt32 (expectedResponse.ToProtobufMessage ().CalculateSize ());
                expectedResponse.ToProtobufMessage ().WriteTo (codedStream);
                codedStream.Flush ();
                responseBytes = stream.ToArray ();
            }
        }

        public void DuplicateKeys_LastEntryWins()
        {
            var memoryStream = new MemoryStream();
            var output = new CodedOutputStream(memoryStream);

            var key = 10;
            var value1 = 20;
            var value2 = 30;

            // First entry
            output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
            output.WriteLength(4);
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key);
            output.WriteTag(2, WireFormat.WireType.Varint);
            output.WriteInt32(value1);

            // Second entry - same key, different value
            output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
            output.WriteLength(4);
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key);
            output.WriteTag(2, WireFormat.WireType.Varint);
            output.WriteInt32(value2);
            output.Flush();

            var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
            Assert.AreEqual(value2, parsed.MapInt32Int32[key]);
        }

        public void MapNonContiguousEntries()
        {
            var memoryStream = new MemoryStream();
            var output = new CodedOutputStream(memoryStream);

            // Message structure:
            // Entry for MapInt32Int32
            // Entry for MapStringString
            // Entry for MapInt32Int32

            // First entry
            var key1 = 10;
            var value1 = 20;
            output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
            output.WriteLength(4);
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key1);
            output.WriteTag(2, WireFormat.WireType.Varint);
            output.WriteInt32(value1);

            // Second entry
            var key2 = "a";
            var value2 = "b";
            output.WriteTag(TestMap.MapStringStringFieldNumber, WireFormat.WireType.LengthDelimited);
            output.WriteLength(6); // 3 bytes per entry: tag, size, character
            output.WriteTag(1, WireFormat.WireType.LengthDelimited);
            output.WriteString(key2);
            output.WriteTag(2, WireFormat.WireType.LengthDelimited);
            output.WriteString(value2);

            // Third entry
            var key3 = 15;
            var value3 = 25;
            output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
            output.WriteLength(4);
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key3);
            output.WriteTag(2, WireFormat.WireType.Varint);
            output.WriteInt32(value3);

            output.Flush();
            var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
            var expected = new TestMap
            {
                MapInt32Int32 = { { key1, value1 }, { key3, value3 } },
                MapStringString = { { key2, value2 } }
            };
            Assert.AreEqual(expected, parsed);
        }

        public void MapFieldOrderIsIrrelevant()
        {
            var memoryStream = new MemoryStream();
            var output = new CodedOutputStream(memoryStream);

            output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);

            var key = 10;
            var value = 20;

            // Each field can be represented in a single byte, with a single byte tag.
            // Total message size: 4 bytes.
            output.WriteLength(4);
            output.WriteTag(2, WireFormat.WireType.Varint);
            output.WriteInt32(value);
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key);
            output.Flush();

            var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
            Assert.AreEqual(value, parsed.MapInt32Int32[key]);
        }

        public void MapIgnoresExtraFieldsWithinEntryMessages()
        {
            // Hand-craft the stream to contain a single entry with three fields
            var memoryStream = new MemoryStream();
            var output = new CodedOutputStream(memoryStream);

            output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);

            var key = 10; // Field 1 
            var value = 20; // Field 2
            var extra = 30; // Field 3

            // Each field can be represented in a single byte, with a single byte tag.
            // Total message size: 6 bytes.
            output.WriteLength(6);
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key);
            output.WriteTag(2, WireFormat.WireType.Varint);
            output.WriteInt32(value);
            output.WriteTag(3, WireFormat.WireType.Varint);
            output.WriteInt32(extra);
            output.Flush();

            var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
            Assert.AreEqual(value, parsed.MapInt32Int32[key]);
        }

        public void MapWithOnlyKey_MessageValue()
        {
            // Hand-craft the stream to contain a single entry with just a key.
            var memoryStream = new MemoryStream();
            var output = new CodedOutputStream(memoryStream);
            output.WriteTag(TestMap.MapInt32ForeignMessageFieldNumber, WireFormat.WireType.LengthDelimited);
            int key = 10;
            output.WriteLength(1 + CodedOutputStream.ComputeInt32Size(key));
            output.WriteTag(1, WireFormat.WireType.Varint);
            output.WriteInt32(key);
            output.Flush();

            var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
            Assert.AreEqual(new ForeignMessage(), parsed.MapInt32ForeignMessage[key]);
        }

        public void TestCodedInputOutputPosition()
        {
            byte[] content = new byte[110];
            for (int i = 0; i < content.Length; i++)
                content[i] = (byte)i;

            byte[] child = new byte[120];
            {
                MemoryStream ms = new MemoryStream(child);
                CodedOutputStream cout = new CodedOutputStream(ms, 20);
                // Field 11: numeric value: 500
                cout.WriteTag(11, WireFormat.WireType.Varint);
                Assert.AreEqual(1, cout.Position);
                cout.WriteInt32(500);
                Assert.AreEqual(3, cout.Position);
                //Field 12: length delimited 120 bytes
                cout.WriteTag(12, WireFormat.WireType.LengthDelimited);
                Assert.AreEqual(4, cout.Position);
                cout.WriteBytes(ByteString.CopyFrom(content));
                Assert.AreEqual(115, cout.Position);
                // Field 13: fixed numeric value: 501
                cout.WriteTag(13, WireFormat.WireType.Fixed32);
                Assert.AreEqual(116, cout.Position);
                cout.WriteSFixed32(501);
                Assert.AreEqual(120, cout.Position);
                cout.Flush();
            }

            byte[] bytes = new byte[130];
            {
                CodedOutputStream cout = new CodedOutputStream(bytes);
                // Field 1: numeric value: 500
                cout.WriteTag(1, WireFormat.WireType.Varint);
                Assert.AreEqual(1, cout.Position);
                cout.WriteInt32(500);
                Assert.AreEqual(3, cout.Position);
                //Field 2: length delimited 120 bytes
                cout.WriteTag(2, WireFormat.WireType.LengthDelimited);
                Assert.AreEqual(4, cout.Position);
                cout.WriteBytes(ByteString.CopyFrom(child));
                Assert.AreEqual(125, cout.Position);
                // Field 3: fixed numeric value: 500
                cout.WriteTag(3, WireFormat.WireType.Fixed32);
                Assert.AreEqual(126, cout.Position);
                cout.WriteSFixed32(501);
                Assert.AreEqual(130, cout.Position);
                cout.Flush();
            }
            // Now test Input stream:
            {
                CodedInputStream cin = new CodedInputStream(new MemoryStream(bytes), new byte[50], 0, 0);
                Assert.AreEqual(0, cin.Position);
                // Field 1:
                uint tag = cin.ReadTag();
                Assert.AreEqual(1, tag >> 3);
                Assert.AreEqual(1, cin.Position);
                Assert.AreEqual(500, cin.ReadInt32());
                Assert.AreEqual(3, cin.Position);
                //Field 2:
                tag = cin.ReadTag();
                Assert.AreEqual(2, tag >> 3);
                Assert.AreEqual(4, cin.Position);
                int childlen = cin.ReadLength();
                Assert.AreEqual(120, childlen);
                Assert.AreEqual(5, cin.Position);
                int oldlimit = cin.PushLimit((int)childlen);
                Assert.AreEqual(5, cin.Position);
                // Now we are reading child message
                {
                    // Field 11: numeric value: 500
                    tag = cin.ReadTag();
                    Assert.AreEqual(11, tag >> 3);
                    Assert.AreEqual(6, cin.Position);
                    Assert.AreEqual(500, cin.ReadInt32());
                    Assert.AreEqual(8, cin.Position);
                    //Field 12: length delimited 120 bytes
                    tag = cin.ReadTag();
                    Assert.AreEqual(12, tag >> 3);
                    Assert.AreEqual(9, cin.Position);
                    ByteString bstr = cin.ReadBytes();
                    Assert.AreEqual(110, bstr.Length);
                    Assert.AreEqual((byte) 109, bstr[109]);
                    Assert.AreEqual(120, cin.Position);
                    // Field 13: fixed numeric value: 501
                    tag = cin.ReadTag();
                    Assert.AreEqual(13, tag >> 3);
                    // ROK - Previously broken here, this returned 126 failing to account for bufferSizeAfterLimit
                    Assert.AreEqual(121, cin.Position);
                    Assert.AreEqual(501, cin.ReadSFixed32());
                    Assert.AreEqual(125, cin.Position);
                    Assert.IsTrue(cin.IsAtEnd);
                }
                cin.PopLimit(oldlimit);
                Assert.AreEqual(125, cin.Position);
                // Field 3: fixed numeric value: 501
                tag = cin.ReadTag();
                Assert.AreEqual(3, tag >> 3);
                Assert.AreEqual(126, cin.Position);
                Assert.AreEqual(501, cin.ReadSFixed32());
                Assert.AreEqual(130, cin.Position);
//.........这里部分代码省略.........

 /// <summary>
 /// Encode a value of the given type.
 /// Should not be called directly. This interface is used by service client stubs.
 /// </summary>
 public static ByteString Encode(object value, Type type)
 {
     var stream = new MemoryStream ();
     var encoder = new CodedOutputStream (stream);
     if (value != null && !type.IsAssignableFrom (value.GetType ())) //TODO: nulls?
         throw new ArgumentException ("Value of type " + value.GetType () + " cannot be encoded to type " + type);
     if (type == typeof(Double))
         encoder.WriteDouble ((Double)value);
     else if (type == typeof(Single))
         encoder.WriteFloat ((Single)value);
     else if (type == typeof(Int32))
         encoder.WriteInt32 ((Int32)value);
     else if (type == typeof(Int64))
         encoder.WriteInt64 ((Int64)value);
     else if (type == typeof(UInt32))
         encoder.WriteUInt32 ((UInt32)value);
     else if (type == typeof(UInt64))
         encoder.WriteUInt64 ((UInt64)value);
     else if (type == typeof(Boolean))
         encoder.WriteBool ((Boolean)value);
     else if (type == typeof(String))
         encoder.WriteString ((String)value);
     else if (type == typeof(byte[]))
         encoder.WriteBytes (ByteString.CopyFrom ((byte[])value));
     else if (value != null && value is Enum)
         encoder.WriteInt32 ((int)value);
     else if (type.IsSubclassOf (typeof(RemoteObject))) {
         if (value == null)
             encoder.WriteUInt64 (0);
         else
             encoder.WriteUInt64 (((RemoteObject)value)._ID);
     } else if (value != null && value is IMessage) {
         ((IMessage)value).WriteTo (stream);
         return ByteString.CopyFrom (stream.ToArray ());
     } else if (value != null && value is IList)
         return EncodeList (value, type);
     else if (value != null && value is IDictionary)
         return EncodeDictionary (value, type);
     else if (value != null && value.GetType ().IsGenericType && value.GetType ().GetGenericTypeDefinition () == typeof(HashSet<>))
         return EncodeSet (value, type); //TODO: ugly checking for set types
     else if (value != null && value.GetType ().IsGenericType &&
              (value.GetType ().GetGenericTypeDefinition () == typeof(Tuple<>) ||
              value.GetType ().GetGenericTypeDefinition () == typeof(Tuple<,>) ||
              value.GetType ().GetGenericTypeDefinition () == typeof(Tuple<,,>) ||
              value.GetType ().GetGenericTypeDefinition () == typeof(Tuple<,,,>) ||
              value.GetType ().GetGenericTypeDefinition () == typeof(Tuple<,,,,>) ||
              value.GetType ().GetGenericTypeDefinition () == typeof(Tuple<,,,,,>)))
         return EncodeTuple (value, type); //TODO: ugly checking for tuple types
     else
         throw new ArgumentException (type + " is not a serializable type");
     encoder.Flush ();
     return ByteString.CopyFrom (stream.ToArray ());
 }

        public void SetUp()
        {
            // Create a request object and get the binary representation of it
            expectedRequest = new Request ();
            expectedRequest.Service = "SomeServiceName";
            expectedRequest.Procedure = "SomeMethodName";
            using (var stream = new MemoryStream ()) {
                var codedStream = new CodedOutputStream (stream);
                codedStream.WriteInt32 (expectedRequest.CalculateSize ());
                expectedRequest.WriteTo (codedStream);
                codedStream.Flush ();
                requestBytes = stream.ToArray ();
            }

            // Create a response object and get the binary representation of it
            expectedResponse = new Response ();
            expectedResponse.Error = "SomeErrorMessage";
            expectedResponse.Time = 42;
            using (var stream = new MemoryStream ()) {
                var codedStream = new CodedOutputStream (stream);
                codedStream.WriteInt32 (expectedResponse.CalculateSize ());
                expectedResponse.WriteTo (codedStream);
                codedStream.Flush ();
                responseBytes = stream.ToArray ();
            }
        }

        private byte[] IntToByteBuffer(int i)
        {
            int t = CodedOutputStream.ComputeTagSize(5);
            int s = CodedOutputStream.ComputeInt32Size(i);

            s += t;
            byte[] bytes = new byte[s];
            CodedOutputStream cos = new CodedOutputStream(bytes);
            cos.WriteTag((5 << 3) + 0);
            cos.WriteInt32(i);
            cos.Flush();
            return bytes;
        }

 /// <summary>
 /// Convert a Protocol Buffer value type from a C# value to a byte string.
 /// </summary>
 public static ByteString WriteValue(object value, Type type)
 {
     var stream = new MemoryStream ();
     var encoder = new CodedOutputStream (stream);
     if (type == typeof(double))
         encoder.WriteDouble ((double)value);
     else if (type == typeof(float))
         encoder.WriteFloat ((float)value);
     else if (type == typeof(int))
         encoder.WriteInt32 ((int)value);
     else if (type == typeof(long))
         encoder.WriteInt64 ((long)value);
     else if (type == typeof(uint))
         encoder.WriteUInt32 ((uint)value);
     else if (type == typeof(ulong))
         encoder.WriteUInt64 ((ulong)value);
     else if (type == typeof(bool))
         encoder.WriteBool ((bool)value);
     else if (type == typeof(string))
         encoder.WriteString ((string)value);
     else if (type == typeof(byte[]))
         encoder.WriteBytes (ByteString.CopyFrom ((byte[])value));
     else
         throw new ArgumentException (type + " is not a Protocol Buffer value type");
     encoder.Flush ();
     return ByteString.CopyFrom (stream.ToArray ());
 }