From 3c3d484eeb6a5676e3055cfa2d4b43c369b8a30b Mon Sep 17 00:00:00 2001 From: Alejandro Gervasio Date: Sat, 24 Nov 2018 18:02:25 -0300 Subject: [PATCH] BAEL-2354 - An Introduction to the Event Notification Model in CDI 2.0 (#5685) * Initial Commit * Update pom.xml * Update pom.xml * Update LowercaseTextServiceUnitTest.java * Update UppercaseTextServiceUnitTest.java * Delete TextApplication.java * Update source files * Update BootstrappingApplication.java * Add AnotherSimpleEventObserver class * Rename event classes * Update ExampleEventSource.java * Update UppercaseTextService.java * Delete TextService.java * Delete LowercaseTextService.java * Delete LowercaseTextServiceUnitTest.java * Delete UppercaseTextServiceUnitTest.java * Fixed text service unit test * Update TextService.java --- cdi/pom.xml | 25 +++++++++++-------- .../application/BootstrappingApplication.java | 15 +++++++++++ .../cdi2observers/events/ExampleEvent.java | 14 +++++++++++ .../events/ExampleEventSource.java | 14 +++++++++++ .../AnotherExampleEventObserver.java | 12 +++++++++ .../observers/ExampleEventObserver.java | 13 ++++++++++ .../cdi2observers/services/TextService.java | 8 ++++++ .../tests/TextServiceUnitTest.java | 14 +++++++++++ 8 files changed, 105 insertions(+), 10 deletions(-) create mode 100644 cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java create mode 100644 cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java create mode 100644 cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java create mode 100644 cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java create mode 100644 cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java create mode 100644 cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java create mode 100644 cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java diff --git a/cdi/pom.xml b/cdi/pom.xml index 2c719c1d7f..0b735e0ca5 100644 --- a/cdi/pom.xml +++ b/cdi/pom.xml @@ -5,7 +5,7 @@ com.baeldung cdi 1.0-SNAPSHOT - + com.baeldung parent-spring-4 @@ -14,6 +14,16 @@ + + javax.enterprise + cdi-api + ${cdi-api.version} + + + org.jboss.weld.se + weld-se-core + ${weld-se-core.version} + org.hamcrest hamcrest-core @@ -42,11 +52,6 @@ aspectjweaver ${aspectjweaver.version} - - org.jboss.weld.se - weld-se-core - ${weld-se-core.version} - org.springframework spring-test @@ -54,13 +59,13 @@ test - - 1.8.9 - 2.4.1.Final + 2.0.SP1 + 3.0.5.Final + 1.9.2 1.3 3.10.0 4.12 + 5.1.2.RELEASE - diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java b/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java new file mode 100644 index 0000000000..4896408502 --- /dev/null +++ b/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java @@ -0,0 +1,15 @@ +package com.baeldung.cdi.cdi2observers.application; + +import com.baeldung.cdi.cdi2observers.events.ExampleEvent; +import javax.enterprise.inject.se.SeContainer; +import javax.enterprise.inject.se.SeContainerInitializer; + +public class BootstrappingApplication { + + public static void main(String... args) { + SeContainerInitializer containerInitializer = SeContainerInitializer.newInstance(); + try (SeContainer container = containerInitializer.initialize()) { + container.getBeanManager().fireEvent(new ExampleEvent("Welcome to Baeldung!")); + } + } +} diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java new file mode 100644 index 0000000000..a2329d2ef1 --- /dev/null +++ b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java @@ -0,0 +1,14 @@ +package com.baeldung.cdi.cdi2observers.events; + +public class ExampleEvent { + + private final String eventMessage; + + public ExampleEvent(String eventMessage) { + this.eventMessage = eventMessage; + } + + public String getEventMessage() { + return eventMessage; + } +} diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java new file mode 100644 index 0000000000..f37030778a --- /dev/null +++ b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java @@ -0,0 +1,14 @@ +package com.baeldung.cdi.cdi2observers.events; + +import javax.enterprise.event.Event; +import javax.inject.Inject; + +public class ExampleEventSource { + + @Inject + Event exampleEvent; + + public void fireEvent() { + exampleEvent.fireAsync(new ExampleEvent("Welcome to Baeldung!")); + } +} diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java b/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java new file mode 100644 index 0000000000..34520c2b3d --- /dev/null +++ b/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java @@ -0,0 +1,12 @@ +package com.baeldung.cdi.cdi2observers.observers; + +import com.baeldung.cdi.cdi2observers.events.ExampleEvent; +import javax.annotation.Priority; +import javax.enterprise.event.Observes; + +public class AnotherExampleEventObserver { + + public String onEvent(@Observes @Priority(2) ExampleEvent event) { + return event.getEventMessage(); + } +} diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java b/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java new file mode 100644 index 0000000000..b3522b2ad0 --- /dev/null +++ b/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java @@ -0,0 +1,13 @@ +package com.baeldung.cdi.cdi2observers.observers; + +import com.baeldung.cdi.cdi2observers.events.ExampleEvent; +import com.baeldung.cdi.cdi2observers.services.TextService; +import javax.annotation.Priority; +import javax.enterprise.event.Observes; + +public class ExampleEventObserver { + + public String onEvent(@Observes @Priority(1) ExampleEvent event, TextService textService) { + return textService.parseText(event.getEventMessage()); + } +} diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java b/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java new file mode 100644 index 0000000000..47788a0657 --- /dev/null +++ b/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java @@ -0,0 +1,8 @@ +package com.baeldung.cdi.cdi2observers.services; + +public class TextService { + + public String parseText(String text) { + return text.toUpperCase(); + } +} diff --git a/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java b/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java new file mode 100644 index 0000000000..deecf13f9a --- /dev/null +++ b/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java @@ -0,0 +1,14 @@ +package com.baeldung.cdi.cdi2observers.tests; + +import com.baeldung.cdi.cdi2observers.services.TextService; +import static org.assertj.core.api.Assertions.assertThat; +import org.junit.Test; + +public class TextServiceUnitTest { + + @Test + public void givenTextServiceInstance_whenCalledparseText_thenCorrect() { + TextService textService = new TextService(); + assertThat(textService.parseText("Baeldung")).isEqualTo("BAELDUNG"); + } +}