Add support for generating code to send MuleSoft Dataweave Transformations to TriggerMesh

applications/spring-shell/src/main/resources/application.properties

@@ -18,6 +18,7 @@ spring.profiles.active=default, core
 spring.application.name=spring-boot-migrator
 # toggle support for git to sync and auto-commit
 sbm.gitSupportEnabled=true
+sbm.muleTriggerMeshTransformEnabled=true
 logging.level.org=ERROR
 logging.level.org.springframework.sbm.logging.MethodCallTraceInterceptor=DEBUG
 logging.level.org.springframework.sbm.logging.StopWatchTraceInterceptor=DEBUG

applications/spring-shell/src/main/resources/banner.txt

@@ -38,6 +38,15 @@ Base Package: ${sbm.defaultBasePackage}
 
     Use -Dsbm.defaultBasePackage=com.acme.packagename as VM parameter on startup to set the property.
 
+TriggerMesh transformation support of Dataweave: ${sbm.muleTriggerMeshTransformEnabled}
+
+    - When applying the mule-to-boot recipe, use `sbm.muleTriggerMeshTransformEnabled` to
+      generate the code required to send the Dataweave transformation to TriggerMesh using
+      the TriggerMesh Dataweave transformation service (https://docs.triggermesh.io/guides/dataweavetransformation/).
+    - This will require a TriggerMesh transformation exist on your Kubernetes cluster to function. When running the
+      service, be sure to set the `K_SINK` environment variable to your exposed service URL.
+
+    Use -Dsbm.muleTriggerMeshTransformEnabled=true|false as VM parameter on startup to set property.
 
 Get Started:
 ------------

applications/spring-shell/src/test/java/org/springframework/sbm/MigrateSimpleMuleAppDataweaveIntegrationTest.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2021 - 2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.sbm;
+
+import org.junit.jupiter.api.*;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.*;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@TestMethodOrder(MethodOrderer.MethodName.class)
+//@Disabled("Temporary disabled before CI will be fixed with docker in docker issue: #351")
+class MigrateSimpleMuleAppDataweaveIntegrationTest extends IntegrationTestBaseClass {
+    private final RestTemplate restTemplate = new RestTemplate();
+    private static RunningNetworkedContainer tmDataweaveContainer;
+
+    @Override
+    protected String getTestSubDir() {
+
+        return "mule-app/spring-dw-mule";
+
+    }
+
+    @BeforeAll
+    public static void beforeAll() {
+        IntegrationTestBaseClass.beforeAll();
+
+        // Will need to ensure this is set globally for the test
+        System.setProperty("sbm.muleTriggerMeshTransformEnabled", "true");
+
+        // start TriggerMesh Dataweave Translator
+        HashMap<String, String> envMap = new HashMap<>();
+        envMap.put("NAMESPACE", "default");
+        envMap.put("DATAWEAVETRANSFORMATION_ALLOW_SPELL_OVERRIDE", "true");
+
+        tmDataweaveContainer = startDockerContainer(
+                new NetworkedContainer(
+                        "gcr.io/triggermesh/dataweavetransformation-adapter:v1.21.0",
+                        List.of(8080),
+                        "dwhost"),
+                null,
+                envMap);
+        if (!tmDataweaveContainer.getContainer().isRunning()) {
+            throw new RuntimeException("TriggerMesh Dataweave Transformer container could not be started");
+        }
+    }
+
+    @AfterAll
+    public static void afterAll() {
+        if (tmDataweaveContainer != null && tmDataweaveContainer.getContainer() != null) {
+            tmDataweaveContainer.getContainer().stop();
+        }
+    }
+
+    @Test
+    @Tag("integration")
+    public void  t2_dataweaveIntegrationWorks() {
+        intializeTestProject();
+        scanProject();
+        applyRecipe("initialize-spring-boot-migration");
+        applyRecipe("migrate-mule-to-triggermesh-boot");
+
+        executeMavenGoals(getTestDir(), "clean", "package", "spring-boot:build-image");
+
+        int dwPort = tmDataweaveContainer.getContainer().getMappedPort(8080);
+        HashMap<String, String> runtimeEnv = new HashMap<>();
+        runtimeEnv.put("K_SINK", "http://dwhost:8080");
+
+        RunningNetworkedContainer container = startDockerContainer(
+                new NetworkedContainer("hellomuledw-migrated:1.0-SNAPSHOT", List.of(9081), "spring"),
+                tmDataweaveContainer.getNetwork(),
+                runtimeEnv);
+
+        checkSendHttpMessage(container.getContainer().getMappedPort(9081));
+        checkTranslatedInboundGatewayHttpMessage(container.getContainer().getMappedPort(9081));
+    }
+
+    private void checkTranslatedInboundGatewayHttpMessage(int port) {
+        ResponseEntity<String> responseEntity = restTemplate.getForEntity("http://localhost:" + port + "/dwtest", String.class);
+
+        assertThat(responseEntity.getStatusCode()).isEqualTo(HttpStatus.OK);
+        assertThat(responseEntity.getBody()).isEqualTo("\n{\n  \"greeting\": \"hello from SBM\"\n}");
+    }
+
+    private void checkSendHttpMessage(int port) {
+        ResponseEntity<String> responseEntity = restTemplate.getForEntity("http://localhost:" + port + "/test", String.class);
+        assertThat(responseEntity.getStatusCode()).isEqualTo(HttpStatus.OK);
+    }
+}

applications/spring-shell/src/test/resources/testcode/mule-app/spring-dw-mule/.gitignore

@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

applications/spring-shell/src/test/resources/testcode/mule-app/spring-dw-mule/pom.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2021 - 2022 the original author or authors.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>hellomuledw-migrated</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.8.2</version>
+        </dependency>
+    </dependencies>
+</project>

applications/spring-shell/src/test/resources/testcode/mule-app/spring-dw-mule/src/main/java/com/example/javadsl/Foo.java

@@ -0,0 +1,7 @@
+package com.example.javadsl;
+
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class Foo {
+}

applications/spring-shell/src/test/resources/testcode/mule-app/spring-dw-mule/src/main/resources/apikit-dw-mule.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2021 - 2022 the original author or authors.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<mule xmlns:doc="http://www.mulesoft.org/schema/mule/documentation" xmlns="http://www.mulesoft.org/schema/mule/core"
+      xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xmlns:dw="http://www.mulesoft.org/schema/mule/ee/dw"
+      xsi:schemaLocation="http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
+http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd http://www.mulesoft.org/schema/mule/ee/dw">
+    <flow name="get:/dwtest:dwtest-config">
+        <dw:transform-message doc:name="Transform Message">
+            <dw:set-payload><![CDATA[%dw 2.0
+output application/json
+---
+greeting: "hello from SBM"
+]]>
+            </dw:set-payload>
+        </dw:transform-message>
+    </flow>
+</mule>

applications/spring-shell/src/test/resources/testcode/mule-app/spring-dw-mule/src/main/resources/http-mule.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+  ~ Copyright 2021 - 2022 the original author or authors.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core"
+      xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
+http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd">
+    <http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="9081" doc:name="HTTP Listener Configuration"/>
+    <flow name="http-flow">
+        <http:listener doc:name="Listener" doc:id="9f602d5c-5386-4fc9-ac8f-024d754c17e5" config-ref="HTTP_Listener_Configuration" path="/test"/>
+        <logger level="INFO" doc:name="Logger" doc:id="4585ec7f-2d4a-4d86-af24-b678d4a99227" />
+    </flow>
+</mule>

components/sbm-core/src/main/java/org/springframework/sbm/project/resource/SbmApplicationProperties.java

@@ -30,6 +30,7 @@
 @ConfigurationProperties(prefix = "sbm")
 public class SbmApplicationProperties {
     private boolean gitSupportEnabled;
+    private boolean muleTriggerMeshTransformEnabled;
     private String defaultBasePackage;
     private boolean writeInMavenLocal;
     private boolean  javaParserLoggingCompilationWarningsAndErrors;

components/sbm-core/src/main/resources/application-core.properties

@@ -18,6 +18,8 @@
 
 # toggle support for git to sync and auto-commit
 sbm.gitSupportEnabled=true
+# toggle support to use TriggerMesh for dataweave transformations
+sbm.muleTriggerMeshTransformEnabled=false
 # default base package when adding classes and no base package can be calculated
 sbm.defaultBasePackage=org.springframework.sbm
 # default groupId when creating a new build file

components/sbm-recipes-mule-to-boot/src/main/java/org/springframework/sbm/mule/MigrateMuleToBoot.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.sbm.mule;
 
+import lombok.RequiredArgsConstructor;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -30,23 +31,34 @@
 import org.springframework.sbm.java.migration.conditions.HasTypeAnnotation;
 import org.springframework.sbm.mule.actions.JavaDSLAction2;
 import org.springframework.sbm.mule.conditions.MuleConfigFileExist;
+import org.springframework.sbm.project.resource.SbmApplicationProperties;
 
 import java.util.List;
 
+@RequiredArgsConstructor
 @Configuration
 public class MigrateMuleToBoot {
+    private final SbmApplicationProperties sbmProperties;
 
     @Autowired
     private JavaDSLAction2 javaDSLAction2;
 
-
     @Bean
     public Recipe muleRecipe() {
+        String name = "migrate-mule-to-boot";
+        String description = "Migrate Mulesoft 3.9 to Spring Boot.";
+
+        // Flag to enable TriggerMesh ransformation mode
+        if (sbmProperties.isMuleTriggerMeshTransformEnabled()) {
+            name = "migrate-mule-to-triggermesh-boot";
+            description = "Migrate Mulesoft 3.9 to Spring Boot using TriggerMesh.";
+            javaDSLAction2.setMuleTriggerMeshTransformEnabled(true);
+        }
+
         return Recipe.builder()
-                .name("migrate-mule-to-boot")
-                .description("Migrate Mulesoft 3.9 to Spring Boot")
+                .name(name)
+                .description(description)
                 .order(60)
-                .description("Migrate Mulesoft to Spring Boot")
                 .condition(new MuleConfigFileExist())
                 .actions(List.of(
                         /*

components/sbm-recipes-mule-to-boot/src/main/java/org/springframework/sbm/mule/actions/JavaDSLAction2.java

@@ -30,8 +30,10 @@
 import org.springframework.sbm.java.api.JavaSource;
 import org.springframework.sbm.java.api.JavaSourceAndType;
 import org.springframework.sbm.java.api.Type;
+import org.springframework.sbm.mule.actions.javadsl.translators.DslSnippet;
 import org.springframework.sbm.mule.api.MuleMigrationContext;
 import org.springframework.sbm.mule.api.MuleMigrationContextFactory;
+import org.springframework.sbm.mule.api.toplevel.AbstractTopLevelElement;
 import org.springframework.sbm.mule.api.toplevel.TopLevelElement;
 import org.springframework.sbm.mule.api.toplevel.TopLevelElementFactory;
 import org.springframework.sbm.mule.api.toplevel.UnknownTopLevelElement;
@@ -54,6 +56,8 @@ public class JavaDSLAction2 extends AbstractAction {
     private final MuleMigrationContextFactory muleMigrationContextFactory;
     private final Map<Class<?>, TopLevelElementFactory> topLevelTypeMap;
 
+    private boolean muleTriggerMeshTransformEnabled;
+
     @Autowired
     public JavaDSLAction2(MuleMigrationContextFactory muleMigrationContextFactory, List<TopLevelElementFactory> topLevelTypeFactories) {
         topLevelTypeMap = topLevelTypeFactories.stream()
@@ -110,6 +114,11 @@ private void handleTopLevelElements(BuildFile buildFile, MuleMigrationContext mu
         buildFile.addDependencies(new ArrayList<>(dependencies));
         endProcess();
 
+        if (muleTriggerMeshTransformEnabled) {
+            logEvent("Adding TriggerMesh Dataweave payload class");
+            createClass(context, createTmDwPayloadClass(context));
+        }
+
         logEvent("Adding " + topLevelElements.size() + " methods");
         topLevelElements.forEach(topLevelElement -> {
             flowConfigurationSource.getType().addMethod(
@@ -228,4 +237,25 @@ private SpringBootApplicationProperties findOrCreateDefaultApplicationProperties
                 .findFirst()
                 .get();
     }
+
+    public void setMuleTriggerMeshTransformEnabled(boolean mode) {
+        this.muleTriggerMeshTransformEnabled = mode;
+    }
+
+    private String createTmDwPayloadClass(ProjectContext projectContext) {
+        JavaSourceSet mainJavaSourceSet = projectContext.getApplicationModules().getTopmostApplicationModules().get(0).getMainJavaSourceSet();
+        String packageName = mainJavaSourceSet.getJavaSourceLocation().getPackageName();
+        return "package " + packageName + ";\n" +
+                        "import " + SPRING_CONFIGURATION_ANNOTATION + ";\n\n" +
+                        "import lombok.Data;\n\n" +
+                        "/* Included with the baseline to support bridging between the Flow configuration and the translation implementation. */\n\n" +
+                        "@Data\n" +
+                        "public class TmDwPayload {\n" +
+                        "    private String id;\n" +
+                        "    private String source;\n" +
+                        "    private String sourceType;\n" +
+                        "    private String payload;\n" +
+                        "}\n";
+    }
+
 }