Add request filter.

src/test/java/io/kokuwa/micronaut/logging/request/TestController.java

@@ -0,0 +1,52 @@
+package io.kokuwa.micronaut.logging.request;
+
+import org.slf4j.MDC;
+
+import ch.qos.logback.classic.Level;
+import io.micronaut.http.annotation.Controller;
+import io.micronaut.http.annotation.Get;
+import io.micronaut.security.annotation.Secured;
+import io.micronaut.security.rules.SecurityRule;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * Controller for testing {@link HeaderLoggingHttpFilter} and {@link PrincipalHttpFilter}.
+ *
+ * @author Stephan Schnabel
+ */
+@Secured({ SecurityRule.IS_ANONYMOUS, SecurityRule.IS_AUTHENTICATED })
+@Controller
+@Slf4j
+public class TestController {
+
+	@Get("/")
+	TestResponse run() {
+
+		var principal = MDC.get(PrincipalHttpFilter.DEFAULT_KEY);
+		var level = Level.OFF;
+		if (log.isTraceEnabled()) {
+			level = Level.TRACE;
+		} else if (log.isDebugEnabled()) {
+			level = Level.DEBUG;
+		} else if (log.isInfoEnabled()) {
+			level = Level.INFO;
+		} else if (log.isWarnEnabled()) {
+			level = Level.WARN;
+		} else if (log.isErrorEnabled()) {
+			level = Level.ERROR;
+		}
+
+		return new TestResponse(level.toString(), principal);
+	}
+
+	@Data
+	@NoArgsConstructor
+	@AllArgsConstructor
+	public static class TestResponse {
+		private String level;
+		private String principal;
+	}
+}