Fix parsing of YAML default value for community marketplace UI Widgets (#3334)

* fixes https://github.com/openhab/openhab-core/issues/3332

Signed-off-by: Boris Krivonog boris.krivonog@inova.si

bundles/org.openhab.core.addon.marketplace/src/main/java/org/openhab/core/addon/marketplace/internal/community/CommunityUIWidgetAddonHandler.java

@@ -33,6 +33,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.introspect.AnnotationIntrospectorPair;
 import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
 
 /**
@@ -60,6 +61,8 @@ public class CommunityUIWidgetAddonHandler implements MarketplaceAddonHandler {
         this.yamlMapper = new ObjectMapper(new YAMLFactory());
         yamlMapper.findAndRegisterModules();
         this.yamlMapper.setDateFormat(new SimpleDateFormat("MMM d, yyyy, hh:mm:ss aa", Locale.ENGLISH));
+        yamlMapper.setAnnotationIntrospector(new AnnotationIntrospectorPair(new SerializedNameAnnotationIntrospector(),
+                yamlMapper.getSerializationConfig().getAnnotationIntrospector()));
     }
 
     @Override

bundles/org.openhab.core.addon.marketplace/src/main/java/org/openhab/core/addon/marketplace/internal/community/SerializedNameAnnotationIntrospector.java

@@ -0,0 +1,57 @@
+/**
+ * Copyright (c) 2010-2023 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.core.addon.marketplace.internal.community;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+import com.fasterxml.jackson.core.Version;
+import com.fasterxml.jackson.databind.AnnotationIntrospector;
+import com.fasterxml.jackson.databind.PropertyName;
+import com.fasterxml.jackson.databind.introspect.Annotated;
+import com.google.gson.annotations.SerializedName;
+
+/**
+ * This is a {@link SerializedNameAnnotationIntrospector}, which processes SerializedName annotations.
+ *
+ * @author Boris Krivonog - Initial contribution
+ *
+ */
+@NonNullByDefault
+final class SerializedNameAnnotationIntrospector extends AnnotationIntrospector {
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    @NonNullByDefault({})
+    public PropertyName findNameForDeserialization(Annotated annotated) {
+        return Optional.ofNullable(annotated.getAnnotation(SerializedName.class)).map(s -> new PropertyName(s.value()))
+                .orElseGet(() -> super.findNameForDeserialization(annotated));
+    }
+
+    @Override
+    @NonNullByDefault({})
+    public List<PropertyName> findPropertyAliases(Annotated annotated) {
+        return Optional.ofNullable(annotated.getAnnotation(SerializedName.class))
+                .map(s -> Stream.of(s.alternate()).map(PropertyName::new).collect(Collectors.toList()))
+                .orElseGet(() -> super.findPropertyAliases(annotated));
+    }
+
+    @Override
+    public Version version() {
+        return Version.unknownVersion();
+    }
+}