From 7ccc2fb465cd59b3b15e9cc0ee4e9ae96e29b682 Mon Sep 17 00:00:00 2001
From: Moritz Halbritter <moritz.halbritter@broadcom.com>
Date: Tue, 13 May 2025 14:48:32 +0200
Subject: [PATCH] Exercise 2

---
 app/app/pom.xml                               |  8 +++++++
 .../workshop/magic/app/MyGreetingService.java |  4 +---
 components/library-autoconfigure/pom.xml      | 16 ++++++++++++++
 .../config/GreetingAutoConfiguration.java     | 22 +++++++++++++++++++
 ...ot.autoconfigure.AutoConfiguration.imports |  1 +
 5 files changed, 48 insertions(+), 3 deletions(-)
 create mode 100644 components/library-autoconfigure/src/main/java/com/workshop/magic/config/GreetingAutoConfiguration.java
 create mode 100644 components/library-autoconfigure/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

diff --git a/app/app/pom.xml b/app/app/pom.xml
index 9dd8170..4ad66f3 100644
--- a/app/app/pom.xml
+++ b/app/app/pom.xml
@@ -15,10 +15,18 @@
     <packaging>jar</packaging>
 
     <dependencies>
+        <dependency>
+            <groupId>com.workshop</groupId>
+            <artifactId>library-autoconfigure</artifactId>
+        </dependency>
         <dependency>
             <groupId>com.workshop</groupId>
             <artifactId>library-api</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.workshop</groupId>
+            <artifactId>library-stdout</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
diff --git a/app/app/src/main/java/com/workshop/magic/app/MyGreetingService.java b/app/app/src/main/java/com/workshop/magic/app/MyGreetingService.java
index c7e6824..130c207 100644
--- a/app/app/src/main/java/com/workshop/magic/app/MyGreetingService.java
+++ b/app/app/src/main/java/com/workshop/magic/app/MyGreetingService.java
@@ -2,9 +2,7 @@ package com.workshop.magic.app;
 
 import com.workshop.magic.service.AbstractGreetingService;
 
-import org.springframework.stereotype.Service;
-
-@Service
+//@Service
 class MyGreetingService extends AbstractGreetingService {
 
     @Override
diff --git a/components/library-autoconfigure/pom.xml b/components/library-autoconfigure/pom.xml
index bf945db..9620e04 100644
--- a/components/library-autoconfigure/pom.xml
+++ b/components/library-autoconfigure/pom.xml
@@ -13,4 +13,20 @@
 
     <artifactId>library-autoconfigure</artifactId>
 
+    <dependencies>
+        <dependency>
+            <groupId>com.workshop</groupId>
+            <artifactId>library-api</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>com.workshop</groupId>
+            <artifactId>library-stdout</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-autoconfigure</artifactId>
+        </dependency>
+    </dependencies>
 </project>
diff --git a/components/library-autoconfigure/src/main/java/com/workshop/magic/config/GreetingAutoConfiguration.java b/components/library-autoconfigure/src/main/java/com/workshop/magic/config/GreetingAutoConfiguration.java
new file mode 100644
index 0000000..386df3c
--- /dev/null
+++ b/components/library-autoconfigure/src/main/java/com/workshop/magic/config/GreetingAutoConfiguration.java
@@ -0,0 +1,22 @@
+package com.workshop.magic.config;
+
+import com.workshop.magic.service.GreetingService;
+import com.workshop.magic.service.stdout.StdOutGreetingService;
+
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+
+@AutoConfiguration
+@ConditionalOnClass(GreetingService.class)
+public class GreetingAutoConfiguration {
+
+    @Bean
+    @ConditionalOnMissingBean
+    @ConditionalOnClass(StdOutGreetingService.class)
+    GreetingService stdOutGreetingService() {
+        return new StdOutGreetingService();
+    }
+
+}
diff --git a/components/library-autoconfigure/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports b/components/library-autoconfigure/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
new file mode 100644
index 0000000..b43e3a8
--- /dev/null
+++ b/components/library-autoconfigure/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
@@ -0,0 +1 @@
+com.workshop.magic.config.GreetingAutoConfiguration
\ No newline at end of file