Enable configuring JsonTypeInfo for Java generation in Maven plugin

Author: atextor

documentation/developer-guide/modules/tooling-guide/pages/maven-plugin.adoc

@@ -118,6 +118,7 @@ are replaced using `packageName` | `String` | none | {nok}
 | `templateFile` | The path and name of the velocity template file containing the macro library. See xref:java-aspect-tooling.adoc#providing-custom-macros-for-code-generation[Providing Custom Macros for Code Generation]. | `String` | none | {nok}
 | `executeLibraryMacros` | Execute the macros provided in the velocity macro library. | `Boolean` | `false` | {nok}
 | `disableJacksonAnnotations` | Leads to generated Java code that does not contain https://github.com/FasterXML/jackson[Jackson] annotations. | `Boolean` | `false` | {nok}
+| `jsonTypeInfo` | If Jackson annotations are enabled, determines the value of `JsonTypeInfo.Id`, e.g., `NAME`.  | `String` | `DEDUCTION` | {nok}
 | `skip` | Skip execution of plugin and generation | `Boolean` | `false` | {nok}
 | `namePrefix` | Name prefix for generated Aspect, Entity Java classes | `String` | none | {nok}
 | `namePostfix` | Name postfix for generated Aspect, Entity Java classes | `String` | none | {nok}

tools/esmf-aspect-model-maven-plugin/src/main/java/org/eclipse/esmf/aspectmodel/GenerateJavaClasses.java

@@ -36,21 +36,29 @@ public class GenerateJavaClasses extends CodeGenerationMojo {
    @Parameter( defaultValue = "false" )
    private boolean disableJacksonAnnotations;
 
+   @Parameter( defaultValue = "deduction" )
+   protected String jsonTypeInfo;
+
    @Override
    public void executeGeneration() throws MojoExecutionException {
-      final Set<Aspect> aspects = loadAspects();
-      for ( final Aspect aspect : aspects ) {
-         final File templateLibFile = Path.of( templateFile ).toFile();
-         validateParameters( templateLibFile );
-         final JavaCodeGenerationConfig config = JavaCodeGenerationConfigBuilder.builder()
-               .enableJacksonAnnotations( !disableJacksonAnnotations )
-               .packageName( determinePackageName( aspect ) )
-               .executeLibraryMacros( executeLibraryMacros )
-               .templateLibFile( templateLibFile )
-               .namePrefix( namePrefix )
-               .namePostfix( namePostfix )
-               .build();
-         new AspectModelJavaGenerator( aspect, config ).generate( nameMapper );
+      try {
+         final Set<Aspect> aspects = loadAspects();
+         for ( final Aspect aspect : aspects ) {
+            final File templateLibFile = Path.of( templateFile ).toFile();
+            validateParameters( templateLibFile );
+            final JavaCodeGenerationConfig config = JavaCodeGenerationConfigBuilder.builder()
+                  .enableJacksonAnnotations( !disableJacksonAnnotations )
+                  .jsonTypeInfo( JavaCodeGenerationConfig.JsonTypeInfoType.valueOf( jsonTypeInfo.toUpperCase() ) )
+                  .packageName( determinePackageName( aspect ) )
+                  .executeLibraryMacros( executeLibraryMacros )
+                  .templateLibFile( templateLibFile )
+                  .namePrefix( namePrefix )
+                  .namePostfix( namePostfix )
+                  .build();
+            new AspectModelJavaGenerator( aspect, config ).generate( nameMapper );
+         }
+      } catch ( final Exception exception ) {
+         throw new MojoExecutionException( "Could not generate Java classes for Aspect Models", exception );
       }
       LOG.info( "Successfully generated Java classes for Aspect Models." );
    }