diff --git a/spring-core-6/src/main/java/com/baeldung/applicationcontext/ApplicationContextProvider.java b/spring-core-6/src/main/java/com/baeldung/applicationcontext/ApplicationContextProvider.java new file mode 100644 index 0000000000..260620ff48 --- /dev/null +++ b/spring-core-6/src/main/java/com/baeldung/applicationcontext/ApplicationContextProvider.java @@ -0,0 +1,20 @@ +package com.baeldung.applicationcontext; + +import org.springframework.beans.BeansException; +import org.springframework.context.ApplicationContext; +import org.springframework.context.ApplicationContextAware; +import org.springframework.stereotype.Component; + +@Component +public class ApplicationContextProvider implements ApplicationContextAware { + private static ApplicationContext applicationContext; + + @Override + public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { + ApplicationContextProvider.applicationContext = applicationContext; + } + + public static ApplicationContext getApplicationContext() { + return applicationContext; + } +} \ No newline at end of file diff --git a/spring-core-6/src/main/java/com/baeldung/applicationcontext/ItemService.java b/spring-core-6/src/main/java/com/baeldung/applicationcontext/ItemService.java new file mode 100644 index 0000000000..344ea3af0f --- /dev/null +++ b/spring-core-6/src/main/java/com/baeldung/applicationcontext/ItemService.java @@ -0,0 +1,11 @@ +package com.baeldung.applicationcontext; + +import org.springframework.stereotype.Service; + +@Service +public class ItemService { + + public String getItem(){ + return "New Item"; + } +} diff --git a/spring-core-6/src/main/java/com/baeldung/applicationcontext/MyBean.java b/spring-core-6/src/main/java/com/baeldung/applicationcontext/MyBean.java new file mode 100644 index 0000000000..95be3375c7 --- /dev/null +++ b/spring-core-6/src/main/java/com/baeldung/applicationcontext/MyBean.java @@ -0,0 +1,17 @@ +package com.baeldung.applicationcontext; + +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.context.ApplicationContext; +import org.springframework.stereotype.Component; + +@Component +public class MyBean { + + @Autowired + private ApplicationContext applicationContext; + + public ApplicationContext getApplicationContext() { + return applicationContext; + } + +} diff --git a/spring-core-6/src/test/java/com/baeldung/applicationcontext/ApplicationContextProviderUnitTest.java b/spring-core-6/src/test/java/com/baeldung/applicationcontext/ApplicationContextProviderUnitTest.java new file mode 100644 index 0000000000..3c3053e61c --- /dev/null +++ b/spring-core-6/src/test/java/com/baeldung/applicationcontext/ApplicationContextProviderUnitTest.java @@ -0,0 +1,32 @@ +package com.baeldung.applicationcontext; + +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.springframework.context.ApplicationContext; +import org.springframework.test.context.ContextConfiguration; +import org.springframework.test.context.junit.jupiter.SpringExtension; + +import static org.junit.jupiter.api.Assertions.assertNotNull; + +@ContextConfiguration(classes = TestContextConfig.class) +@ExtendWith(SpringExtension.class) +class ApplicationContextProviderUnitTest { + + @Test + void whenGetApplicationContext_thenReturnApplicationContext() { + ApplicationContext context = ApplicationContextProvider.getApplicationContext(); + assertNotNull(context); + System.out.printf("ApplicationContext has %d beans %n", context.getBeanDefinitionCount()); + } + + @Test + void whenGetBean_thenReturnItemServiceReference() { + ApplicationContext context = ApplicationContextProvider.getApplicationContext(); + assertNotNull(context); + + ItemService itemService = context.getBean(ItemService.class); + assertNotNull(context); + + System.out.println(itemService.getItem()); + } +} \ No newline at end of file diff --git a/spring-core-6/src/test/java/com/baeldung/applicationcontext/MyBeanUnitTest.java b/spring-core-6/src/test/java/com/baeldung/applicationcontext/MyBeanUnitTest.java new file mode 100644 index 0000000000..bff04c2d20 --- /dev/null +++ b/spring-core-6/src/test/java/com/baeldung/applicationcontext/MyBeanUnitTest.java @@ -0,0 +1,28 @@ +package com.baeldung.applicationcontext; + +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.context.ApplicationContext; +import org.springframework.test.context.ContextConfiguration; +import org.springframework.test.context.junit.jupiter.SpringExtension; + +import static org.junit.jupiter.api.Assertions.assertNotNull; + +@ContextConfiguration(classes = TestContextConfig.class) +@ExtendWith(SpringExtension.class) +class MyBeanUnitTest { + + @Autowired + MyBean myBean; + + @Test + void whenGetApplicationContext_thenReturnApplicationContext() { + assertNotNull(myBean); + ApplicationContext context = myBean.getApplicationContext(); + assertNotNull(context); + + System.out.printf("ApplicationContext has %d beans %n", context.getBeanDefinitionCount()); + } + +} \ No newline at end of file diff --git a/spring-core-6/src/test/java/com/baeldung/applicationcontext/TestContextConfig.java b/spring-core-6/src/test/java/com/baeldung/applicationcontext/TestContextConfig.java new file mode 100644 index 0000000000..257500a00f --- /dev/null +++ b/spring-core-6/src/test/java/com/baeldung/applicationcontext/TestContextConfig.java @@ -0,0 +1,11 @@ +package com.baeldung.applicationcontext; + +import org.springframework.context.annotation.ComponentScan; +import org.springframework.context.annotation.Configuration; + +@Configuration +@ComponentScan("com.baeldung.applicationcontext") +public class TestContextConfig { + + +}