Merge branch '10-support-of-slf4j-2' into 'main'

Resolve "Support of SLF4j 2"

Closes #10

See merge request bot-by/slf4j-aws-lambda!10

Author: vitalijr2

pom.xml

@@ -100,7 +100,7 @@
     <commons-text.version>1.9</commons-text.version>
     <!-- dependencies -->
     <jetbrains-annotations.version>23.0.0</jetbrains-annotations.version>
-    <slf4j.version>1.7.36</slf4j.version>
+    <slf4j.version>2.0.0-beta1</slf4j.version>
   </properties>
 
   <dependencies>

src/main/java/uk/bot_by/aws_lambda/slf4j/AWSLambdaServiceProvider.java

@@ -0,0 +1,50 @@
+package uk.bot_by.aws_lambda.slf4j;
+
+import org.slf4j.ILoggerFactory;
+import org.slf4j.IMarkerFactory;
+import org.slf4j.helpers.BasicMDCAdapter;
+import org.slf4j.helpers.BasicMarkerFactory;
+import org.slf4j.spi.MDCAdapter;
+import org.slf4j.spi.SLF4JServiceProvider;
+
+public class AWSLambdaServiceProvider implements SLF4JServiceProvider {
+
+  /**
+   * Declare the version of the SLF4J API this implementation is compiled against. The value of this
+   * field is modified with each major release.
+   */
+  // to avoid constant folding by the compiler, this field must *not* be final
+  public static String REQUESTED_API_VERSION = "2.0.99"; // !final
+
+  private ILoggerFactory loggerFactory;
+  private IMarkerFactory markerFactory;
+  private MDCAdapter contextMapAdapter;
+
+  @Override
+  public ILoggerFactory getLoggerFactory() {
+    return loggerFactory;
+  }
+
+  @Override
+  public IMarkerFactory getMarkerFactory() {
+    return markerFactory;
+  }
+
+  @Override
+  public MDCAdapter getMDCAdapter() {
+    return contextMapAdapter;
+  }
+
+  @Override
+  public String getRequestedApiVersion() {
+    return REQUESTED_API_VERSION;
+  }
+
+  @Override
+  public void initialize() {
+    loggerFactory = new LambdaLoggerFactory();
+    markerFactory = new BasicMarkerFactory();
+    contextMapAdapter = new BasicMDCAdapter();
+  }
+
+}

src/main/resources/META-INF/services/org.slf4j.spi.SLF4JServiceProvider

@@ -0,0 +1 @@
+uk.bot_by.aws_lambda.slf4j.AWSLambdaServiceProvider

src/test/java/uk/bot_by/aws_lambda/slf4j/AWSLambdaServiceProviderTest.java

@@ -0,0 +1,39 @@
+package uk.bot_by.aws_lambda.slf4j;
+
+import static org.junit.jupiter.api.Assertions.assertAll;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Tag;
+import org.junit.jupiter.api.Test;
+
+@Tag("fast")
+class AWSLambdaServiceProviderTest {
+
+  private AWSLambdaServiceProvider provider;
+
+  @BeforeEach
+  void setUp() {
+    provider = new AWSLambdaServiceProvider();
+  }
+
+  @Test
+  void initialize() {
+    // given
+    assertAll("Before initialization",
+        () -> assertNull(provider.getLoggerFactory(), "logger factory"),
+        () -> assertNull(provider.getMarkerFactory(), "marker factory"),
+        () -> assertNull(provider.getMDCAdapter(), "context map adapter"));
+
+    // when
+    provider.initialize();
+
+    // then
+    assertAll("After initialization",
+        () -> assertNotNull(provider.getLoggerFactory(), "logger factory"),
+        () -> assertNotNull(provider.getMarkerFactory(), "marker factory"),
+        () -> assertNotNull(provider.getMDCAdapter(), "context map adapter"));
+  }
+
+}