Merge pull request #678 from bci-oss/623-meta-class-does-not-include-exampleValue

Meta Class doesn't include exampleValue

Author: Yauhenikapl

core/esmf-aspect-model-java-generator/src/main/java/org/eclipse/esmf/aspectmodel/java/metamodel/StaticMetaModelJavaArtifactGenerator.java

@@ -21,6 +21,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.Properties;
+
 import javax.xml.datatype.DatatypeConfigurationException;
 import javax.xml.datatype.DatatypeConstants;
 import javax.xml.datatype.DatatypeFactory;
@@ -90,6 +91,7 @@
 import org.eclipse.esmf.metamodel.impl.DefaultComplexType;
 import org.eclipse.esmf.metamodel.impl.DefaultEntity;
 import org.eclipse.esmf.metamodel.impl.DefaultScalar;
+import org.eclipse.esmf.metamodel.impl.DefaultScalarValue;
 import org.eclipse.esmf.metamodel.vocabulary.SammNs;
 import org.eclipse.esmf.samm.KnownVersion;
 import org.eclipse.esmf.staticmetamodel.PropertyContainer;
@@ -170,6 +172,7 @@ public JavaArtifact apply( final E element, final JavaCodeGenerationConfig confi
             .put( "DefaultRangeConstraint", DefaultRangeConstraint.class )
             .put( "DefaultRegularExpressionConstraint", DefaultRegularExpressionConstraint.class )
             .put( "DefaultScalar", DefaultScalar.class )
+            .put( "DefaultScalarValue", DefaultScalarValue.class )
             .put( "DefaultSet", DefaultSet.class )
             .put( "DefaultSingleEntity", DefaultSingleEntity.class )
             .put( "DefaultSortedSet", DefaultSortedSet.class )

core/esmf-aspect-model-java-generator/src/main/java/org/eclipse/esmf/aspectmodel/java/metamodel/StaticMetaModelVisitor.java

@@ -544,6 +544,12 @@ private <T> String getOptionalStaticDeclarationValue( final Type type, final Opt
       return "Optional.of(" + valueInitializer.apply( xsdType, valueExpression ) + ")";
    }
 
+   public String exampleValue( final Property property, final StaticCodeGenerationContext context ) {
+      return property.getExampleValue()
+            .map( exampleValue -> "Optional.of(" + this.visitScalarValue( exampleValue, context ) + ")" )
+            .orElse( "Optional.empty()" );
+   }
+
    /*
     * This method is a crutch because velocity is not able to call the parameterized actual method
     */
@@ -574,6 +580,7 @@ public String getMetaModelBaseAttributes( final ModelElement element, final Stat
       } );
       element.getSee().stream().sorted()
             .forEach( see -> builder.append( ".withSee(" ).append( AspectModelJavaUtil.createLiteral( see ) ).append( ")" ) );
+
       builder.append( ".build()" );
       return builder.toString();
    }

core/esmf-aspect-model-java-generator/src/main/resources/java-static-class-property-lib.vm

@@ -131,7 +131,7 @@
     ## $arg1, $arg2, ... ) {
     $modelVisitor.metaModelBaseAttributes( $property, $context ),
     #propertyCharacteristic( $property.getCharacteristic().get(), $propertyType ),
-Optional.empty(),
+    $modelVisitor.exampleValue( $property, $context ),
     $property.isOptional(),
     $property.isNotInPayload(),
 Optional.of("$property.getPayloadName()"),

core/esmf-aspect-model-java-generator/src/test/java/org/eclipse/esmf/aspectmodel/java/StaticMetaModelJavaGeneratorTest.java

@@ -24,8 +24,11 @@
 import java.time.LocalDate;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Optional;
+import java.util.Set;
 import java.util.regex.Pattern;
+
 import javax.xml.datatype.DatatypeFactory;
 import javax.xml.datatype.XMLGregorianCalendar;
 
@@ -498,6 +501,36 @@ void testCharacteristicInstantiationForQuantifiableWithoutUnit() throws IOExcept
             ImmutableMap.<String, String> builder().put( "TEST_PROPERTY", expectedTestPropertyCharacteristicConstructorCall ).build(), 1 );
    }
 
+   @Test
+   void testCharacteristicInstantiationForPropertyWithExampleValue() throws IOException {
+      final TestAspect aspect = TestAspect.ASPECT_WITH_COLLECTION;
+      final StaticClassGenerationResult result = TestContext.generateStaticAspectCode().apply( getGenerators( aspect ) );
+
+      result.assertNumberOfFiles( 2 );
+
+      Map<String, Set<String>> expectedBaseAttributes = new HashMap<>();
+      expectedBaseAttributes.put( "TEST_PROPERTY", Set.of(
+            "withUrn(AspectModelUrn.fromUrn(NAMESPACE + \"testProperty\"))",
+            "withPreferredName(Locale.forLanguageTag(\"en\"), \"Test Property\")",
+            "withDescription(Locale.forLanguageTag(\"en\"), \"This is a test property.\")",
+            "withSee(\"http://example.com/\")",
+            "withSee(\"http://example.com/me\")"
+      ) );
+
+      result.assertMetaModelBaseAttributesForProperties( "MetaAspectWithCollection", expectedBaseAttributes );
+
+      final String expectedExampleValue = "Optional.of(new DefaultScalarValue(\"Example Value\", new DefaultScalar(\"http://www.w3"
+            + ".org/2001/XMLSchema#string\")))";
+
+      result.assertConstructorArgumentForProperties(
+            "MetaAspectWithCollection",
+            ImmutableMap.<String, String> builder()
+                  .put( "TEST_PROPERTY", expectedExampleValue )
+                  .build(),
+            2
+      );
+   }
+
    @Test
    void testCharacteristicInstantiationForQuantifiableWithUnit() throws IOException {
       final TestAspect aspect = TestAspect.ASPECT_WITH_QUANTIFIABLE_WITH_UNIT;