closes #80 prepare demo for mule to boot migration (#81)

Author: fabapp2

changelog.md

@@ -2,6 +2,7 @@
 
 ### Adds
 - Unmarshalling ejb-jar.xml for EJB 2.1 (#62) 
+- Demo for Mule to Boot migration (#80)
 
 ### Fixes
 - Paths and CLI rendering under Windows (#58) 

components/sbm-core/src/main/java/org/springframework/sbm/engine/precondition/PreconditionCheck.java

@@ -24,8 +24,6 @@
 
 public abstract class PreconditionCheck {
 
-	private ResultState resultState;
-
 	public abstract PreconditionCheckResult verify(Path projectRoot, List<Resource> projectResources);
 
 	public enum ResultState {

components/sbm-core/src/main/java/org/springframework/sbm/engine/recipe/AbstractAction.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.sbm.engine.recipe;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -38,6 +39,7 @@ public abstract class AbstractAction implements Action {
     private Condition condition = Condition.TRUE;
 
     @Autowired
+    @JsonIgnore
     @Getter
     private ApplicationEventPublisher eventPublisher;
 

components/sbm-support-weblogic/src/test/java/org/springframework/sbm/jee/wls/actions/MigrateWlsEjbDeploymentDescriptorTest.java

@@ -16,6 +16,7 @@
 package org.springframework.sbm.jee.wls.actions;
 
 import org.junit.jupiter.api.Test;
+import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.sbm.GitHubIssue;
 import org.springframework.sbm.engine.context.ProjectContext;
 import org.springframework.sbm.jee.wls.JeeWlsEjbJarProjectResourceRegistrar;
@@ -24,6 +25,7 @@
 import java.nio.file.Path;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
 
 class MigrateWlsEjbDeploymentDescriptorTest {
     @Test
@@ -93,6 +95,7 @@ void shouldAddTransactionalAnnotationAndTimeoutIfAnnotationDoesNotExist() {
 
 
         MigrateWlsEjbDeploymentDescriptor sut = new MigrateWlsEjbDeploymentDescriptor();
+        sut.setEventPublisher(mock(ApplicationEventPublisher.class));
         sut.apply(projectContext);
 
         String resultingJavaSource = projectContext.getProjectJavaSources().list().get(0).getResource().print();

demos/demo-migrate-mule-to-boot/.gitignore

@@ -0,0 +1,3 @@
+testcode/result/*
+/**/.git
+/.rewrite-cache/

demos/demo-migrate-mule-to-boot/README.adoc

@@ -0,0 +1,61 @@
+= Migrate Mule 3.9 to Spring Integration
+
+== Introduction
+
+This demo shows how SBM can be used to migrate a https://docs.mulesoft.com/release-notes/mule-runtime/mule-3.9.0-release-notes[Mule 3.9]
+application to Spring Integration by applying recipe `migrate-mule-to-boot`.
+
+=== Requirements
+
+The demo was created on Mac OS but should run under Windows with a shell too.
+
+- JDK 11
+- Maven
+- Docker
+- IntelliJ (can be changed)
+
+== The Demo
+
+A Mulesoft application with one flow using `http:listener` and `amqp:outbound-endpoint` gets migrated to Spring Integration.
+The migrated application provides a REST endpoint that sends a message received as POST request to a RabbitMQ queue.
+
+=== Run the demo
+
+* Call the `run-demo.sh` shell script to ru the full demo +
+  `./run-demo.sh`
+
+The script
+
+* Moves all resources from `testcode/given`
+* Initializes Git repository in the project to migrate
+* Uses `docker-compose` to start a RabbitMQ instance with `sales_queue` configured
+* Waits, and proceeds on `enter`
+* Runs the migration by applying the commands in `commands.txt` (`initalize-spring-boot-migration`, `migrate-mule-to-boot`)
+* Opens IntelliJ IDEA +
+Under `Git/Log` in IntelliJ you should be able to find the commits for the applied recipes and compare the applied changes.
+
+image::media/intellij-git-perspective.png[]
+
+You can select the commits to compare
+
+image::media/intellij-git-compare-commit.png[]
+
+image::media/intellij-git-compare-commit-2.png[]
+
+image::media/intellij-git-compare-commit-3.png[]
+
+* Builds the migrated application +
+You'll need to exit the application manually using `Ctrl + c` as the `exit` is currently broken (v0.10.0)
+* Waits, and proceeds on `enter`
+* Starts the migrated application +
+The application is started in the background and console output can be found in `./application.log`
+* Find the URL for the RabbitMQ console in console output, verify no message exists
+* Waits, and proceeds on `enter`
+* Sends a message to the REST endpoint +
+`curl --location --request POST 'http://localhost:8081/' --header 'Content-Type: text/plain' --data-raw '{"hello": "from mule spring world"}'`
+* Waits, and proceeds on `enter`, this lets you verify one message was sent
+* The message can be checked in the http://localhost:15672/#/queues/%2F/sales_queue[RabbiMQ console] +
+**You might have to refresh the browser few times (or wait few seconds)**
+* Waits, and proceeds on `enter`
+* shuts down the application
+* performs clean up

demos/demo-migrate-mule-to-boot/commands.txt

@@ -0,0 +1,4 @@
+s ./testcode/result/spring-amqp-mule
+a initialize-spring-boot-migration
+a migrate-mule-to-boot
+exit