rule out records with NULL dataInfo

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/GraphCleaningFunctions.java

@@ -239,7 +239,7 @@ public class GraphCleaningFunctions extends CleaningFunctions {
 								d -> Optional
 									.ofNullable(d.getInvisible())
 									.orElse(true))
-							.orElse(true))
+							.orElse(false))
 					.orElse(true))) {
 			return true;
 		}

dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/clean/GraphCleaningFunctionsTest.java

@@ -337,6 +337,15 @@ public class GraphCleaningFunctionsTest {
 		Assertions.assertEquals(true, GraphCleaningFunctions.filter(cleaned));
 	}
 
+	@Test
+	public void testFilterProject() throws IOException {
+		String json = IOUtils
+				.toString(getClass().getResourceAsStream("/eu/dnetlib/dhp/oa/graph/clean/project.json"));
+		Project p_in = MAPPER.readValue(json, Project.class);
+
+		Assertions.assertEquals(false, GraphCleaningFunctions.filter(p_in));
+	}
+
 	@Test
 	public void testCleanDoiBoost2() throws IOException {
 		String json = IOUtils

dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/clean/project.json

@@ -0,0 +1 @@
+{"measures": [{"id": "downloads", "unit": [{"dataInfo": {"provenanceaction": {"classid": "measure:usage_counts", "classname": "measure:usage_counts", "schemeid": "dnet:provenanceActions", "schemename": "dnet:provenanceActions"}, "deletedbyinference": false, "inferred": true, "inferenceprovenance": "update", "invisible": false, "trust": ""}, "key": "count", "value": "1"}]}, {"id": "views", "unit": [{"dataInfo": {"provenanceaction": {"classid": "measure:usage_counts", "classname": "measure:usage_counts", "schemeid": "dnet:provenanceActions", "schemename": "dnet:provenanceActions"}, "deletedbyinference": false, "inferred": true, "inferenceprovenance": "update", "invisible": false, "trust": ""}, "key": "count", "value": "0"}]}], "id": "40|aka_________::591da07706352f1195afaeed4065f52e"}