feat: Add DateOnly and TimeOnly converters

libraries/src/AWS.Lambda.Powertools.Logging/Internal/Converters/DateOnlyConverter.cs

@@ -0,0 +1,52 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+using System;
+using System.Globalization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace AWS.Lambda.Powertools.Logging.Internal.Converters;
+
+/// <summary>
+/// DateOnly JSON converter
+/// </summary>
+public class DateOnlyConverter : JsonConverter<DateOnly>
+{
+    private const string DateFormat = "yyyy-MM-dd";
+
+    /// <summary>
+    /// Converts DateOnly from JSON.
+    /// </summary>
+    /// <param name="reader"></param>
+    /// <param name="typeToConvert"></param>
+    /// <param name="options"></param>
+    /// <returns></returns>
+    public override DateOnly Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        return DateOnly.ParseExact(reader.GetString()!, DateFormat, CultureInfo.InvariantCulture);
+    }
+
+    /// <summary>
+    /// Converts DateOnly to JSON.
+    /// </summary>
+    /// <param name="writer"></param>
+    /// <param name="value"></param>
+    /// <param name="options"></param>
+    public override void Write(Utf8JsonWriter writer, DateOnly value, JsonSerializerOptions options)
+    {
+        writer.WriteStringValue(value.ToString(DateFormat, CultureInfo.InvariantCulture));
+    }
+}

libraries/src/AWS.Lambda.Powertools.Logging/Internal/Converters/TimeOnlyConverter.cs

@@ -0,0 +1,52 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+using System;
+using System.Globalization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace AWS.Lambda.Powertools.Logging.Internal.Converters;
+
+/// <summary>
+/// TimeOnly JSON converter
+/// </summary>
+internal class TimeOnlyConverter : JsonConverter<TimeOnly>
+{
+    private const string TimeFormat = "HH:mm:ss.FFFFFFF";
+
+    /// <summary>
+    /// Converts TimeOnly from JSON.
+    /// </summary>
+    /// <param name="reader"></param>
+    /// <param name="typeToConvert"></param>
+    /// <param name="options"></param>
+    /// <returns></returns>
+    public override TimeOnly Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        return TimeOnly.ParseExact(reader.GetString()!, TimeFormat, CultureInfo.InvariantCulture);
+    }
+
+    /// <summary>
+    /// Converts TimeOnly to JSON.
+    /// </summary>
+    /// <param name="writer"></param>
+    /// <param name="value"></param>
+    /// <param name="options"></param>
+    public override void Write(Utf8JsonWriter writer, TimeOnly value, JsonSerializerOptions options)
+    {
+        writer.WriteStringValue(value.ToString(TimeFormat, CultureInfo.InvariantCulture));
+    }
+}

libraries/src/AWS.Lambda.Powertools.Logging/Internal/LoggingAspectHandler.cs

@@ -288,6 +288,8 @@ private static JsonSerializerOptions BuildJsonSerializerOptions()
         jsonOptions.Converters.Add(new ExceptionConverter());
         jsonOptions.Converters.Add(new MemoryStreamConverter());
         jsonOptions.Converters.Add(new ConstantClassConverter());
+        jsonOptions.Converters.Add(new DateOnlyConverter());
+        jsonOptions.Converters.Add(new TimeOnlyConverter());
         return jsonOptions;
     }
 

libraries/src/AWS.Lambda.Powertools.Logging/Internal/PowertoolsLogger.cs

@@ -466,6 +466,8 @@ private JsonSerializerOptions BuildJsonSerializerOptions()
         jsonOptions.Converters.Add(new ExceptionConverter());
         jsonOptions.Converters.Add(new MemoryStreamConverter());
         jsonOptions.Converters.Add(new ConstantClassConverter());
+        jsonOptions.Converters.Add(new DateOnlyConverter());
+        jsonOptions.Converters.Add(new TimeOnlyConverter());
 
         jsonOptions.Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping;
 

libraries/tests/AWS.Lambda.Powertools.Logging.Tests/PowertoolsLoggerTest.cs

@@ -1219,5 +1219,87 @@ public void Log_Set_Execution_Environment_Context()
                 $"{Constants.FeatureContextIdentifier}/Logger/{assemblyVersion}");
             env.Received(1).GetEnvironmentVariable("AWS_EXECUTION_ENV");
         }
+
+        [Fact]
+        public void Log_Should_Serialize_DateOnly()
+        {
+            // Arrange
+            var loggerName = Guid.NewGuid().ToString();
+            var service = Guid.NewGuid().ToString();
+            var logLevel = LogLevel.Information;
+            var randomSampleRate = 0.5;
+
+            var configurations = Substitute.For<IPowertoolsConfigurations>();
+            configurations.Service.Returns(service);
+            configurations.LogLevel.Returns(logLevel.ToString());
+
+            var systemWrapper = Substitute.For<ISystemWrapper>();
+            systemWrapper.GetRandom().Returns(randomSampleRate);
+
+            var logger = new PowertoolsLogger(loggerName, configurations, systemWrapper, () =>
+                new LoggerConfiguration
+                {
+                    Service = null,
+                    MinimumLevel = null,
+                    LoggerOutputCase = LoggerOutputCase.CamelCase
+                });
+
+            var message = new
+            {
+                PropOne = "Value 1",
+                PropTwo = "Value 2",
+                Date = new DateOnly(2022, 1, 1)
+            };
+
+            logger.LogInformation(message);
+
+            // Assert
+            systemWrapper.Received(1).LogLine(
+                Arg.Is<string>(s =>
+                    s.Contains("\"message\":{\"propOne\":\"Value 1\",\"propTwo\":\"Value 2\",\"date\":\"2022-01-01\"}")
+                )
+            );
+        }
+
+        [Fact]
+        public void Log_Should_Serialize_TimeOnly()
+        {
+            // Arrange
+            var loggerName = Guid.NewGuid().ToString();
+            var service = Guid.NewGuid().ToString();
+            var logLevel = LogLevel.Information;
+            var randomSampleRate = 0.5;
+
+            var configurations = Substitute.For<IPowertoolsConfigurations>();
+            configurations.Service.Returns(service);
+            configurations.LogLevel.Returns(logLevel.ToString());
+
+            var systemWrapper = Substitute.For<ISystemWrapper>();
+            systemWrapper.GetRandom().Returns(randomSampleRate);
+
+            var logger = new PowertoolsLogger(loggerName, configurations, systemWrapper, () =>
+                new LoggerConfiguration
+                {
+                    Service = null,
+                    MinimumLevel = null,
+                    LoggerOutputCase = LoggerOutputCase.CamelCase
+                });
+
+            var message = new
+            {
+                PropOne = "Value 1",
+                PropTwo = "Value 2",
+                Time = new TimeOnly(12, 0, 0)
+            };
+
+            logger.LogInformation(message);
+
+            // Assert
+            systemWrapper.Received(1).LogLine(
+                Arg.Is<string>(s =>
+                    s.Contains("\"message\":{\"propOne\":\"Value 1\",\"propTwo\":\"Value 2\",\"time\":\"12:00:00\"}")
+                )
+            );
+        }
     }
 }