injection point example (#1850)

spring-all/pom.xml

@@ -164,6 +164,18 @@
             <artifactId>ehcache</artifactId>
             <version>${ehcache.version}</version>
         </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+
     </dependencies>
 
     <dependencyManagement>
@@ -264,6 +276,8 @@
         <assertj.version>3.6.1</assertj.version>
         <jasperreports.version>6.4.0</jasperreports.version>
 
+        <log4j.version>2.8.2</log4j.version>
+
     </properties>
 
 </project>

spring-all/src/main/java/org/baeldung/spring43/composedmapping/AppointmentsController.java

@@ -6,12 +6,16 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.apache.logging.log4j.Logger;
 
 @Controller
 @RequestMapping("/appointments")
 public class AppointmentsController {
 
-    private final AppointmentService appointmentService;
+    private AppointmentService appointmentService;
+
+    @Autowired
+    private Logger logger;
 
     @Autowired
     public AppointmentsController(AppointmentService appointmentService) {
@@ -20,6 +24,7 @@ public class AppointmentsController {
 
     @GetMapping
     public Map<String, Appointment> get() {
+        logger.info("Getting appointments...");
         return appointmentService.getAppointmentsForToday();
     }
 

spring-all/src/main/resources/log4j2.properties

@@ -0,0 +1,11 @@
+rootLogger.level=info
+rootLogger.appenderRefs = stdout
+rootLogger.appenderRef.stdout.ref = STDOUT
+
+appenders=console
+
+appender.console.type = Console
+appender.console.name = STDOUT
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %p %d{yyyy-MM-dd} [%t] %c{1} - %msg%n
+ 

spring-all/src/test/java/org/baeldung/spring43/composedmapping/ComposedMappingConfiguration.java

@@ -9,6 +9,10 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.ViewResolver;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 import org.springframework.web.servlet.view.InternalResourceViewResolver;
+import org.springframework.beans.factory.InjectionPoint;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.springframework.context.annotation.Scope;
 
 import static org.easymock.EasyMock.*;
 
@@ -33,4 +37,10 @@ public class ComposedMappingConfiguration {
         return book;
     }
 
+    @Bean
+    @Scope("prototype")
+    public Logger logger(InjectionPoint injectionPoint) {
+        return LogManager.getLogger(injectionPoint.getField().getDeclaringClass());
+    }
+
 }