Merge pull request 'Serialization of fields in XML records for Sygma (and not only)' (#171) from sygma_indexing into beta

Reviewed-on: D-Net/dnet-hadoop#171

dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/utils/XmlRecordFactory.java

@@ -1212,6 +1212,17 @@ public class XmlRecordFactory implements Serializable {
 										"processingchargecurrency", instance.getProcessingchargecurrency()));
 					}
 
+					if (instance.getLicense() != null) {
+						fields
+							.addAll(
+								instance
+									.getLicense()
+									.stream()
+									.filter(d -> isNotBlank(d))
+									.map(d -> XmlSerializationUtils.asXmlElement("license", d))
+									.collect(Collectors.toList()));
+					}
+
 					children
 						.add(
 							templateFactory

dhp-workflows/dhp-graph-provision/src/test/resources/eu/dnetlib/dhp/oa/provision/publication.json

@@ -541,7 +541,7 @@
           },
           "trust": ""
         },
-        "value": ""
+        "value": "CC-BY"
       },
       "url": [
         "http://dx.doi.org/10.1109/TED.2018.2853550"