fixed wrong import of unresolved relation in openaire

dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/actionmanager/datacite/oozie_app/workflow.xml

@@ -70,7 +70,7 @@
             <arg>--sourcePath</arg><arg>${mainPath}/datacite_dump</arg>
             <arg>--targetPath</arg><arg>${mainPath}/datacite_oaf</arg>
             <arg>--isLookupUrl</arg><arg>${isLookupUrl}</arg>
-            <arg>--exportLinks</arg><arg>true</arg>
+            <arg>--exportLinks</arg><arg>false</arg>
             <arg>--master</arg><arg>yarn-cluster</arg>
         </spark>
         <ok to="End"/>

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

@@ -131,6 +131,7 @@ public class PrepareRelationsJob {
 		Set<String> relationFilter, int sourceMaxRelations, int targetMaxRelations, int relPartitions) {
 
 		JavaRDD<Relation> rels = readPathRelationRDD(spark, inputRelationsPath)
+			.filter(rel -> !(rel.getSource().startsWith("unresolved") || rel.getTarget().startsWith("unresolved")))
 			.filter(rel -> !rel.getDataInfo().getDeletedbyinference())
 			.filter(rel -> !relationFilter.contains(StringUtils.lowerCase(rel.getRelClass())));