fixed incremental indexing

dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/scholexplorer/DLIRelation.java

@@ -0,0 +1,15 @@
+package eu.dnetlib.dhp.schema.scholexplorer;
+
+import eu.dnetlib.dhp.schema.oaf.Relation;
+
+public class DLIRelation extends Relation {
+    private String dateOfCollection;
+
+    public String getDateOfCollection() {
+        return dateOfCollection;
+    }
+
+    public void setDateOfCollection(String dateOfCollection) {
+        this.dateOfCollection = dateOfCollection;
+    }
+}

dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/sx/graph/SparkSXGeneratePidSimlarity.java

@@ -1,6 +1,7 @@
 package eu.dnetlib.dhp.sx.graph;
 
 import eu.dnetlib.dhp.schema.oaf.Relation;
+import eu.dnetlib.dhp.schema.scholexplorer.DLIRelation;
 import eu.dnetlib.dhp.utils.DHPUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.spark.api.java.JavaPairRDD;
@@ -49,15 +50,15 @@ public class SparkSXGeneratePidSimlarity {
                                 .equalsIgnoreCase(StringUtils.substringAfter(t._2(), "::")))
                 .distinct();
 
-        JavaRDD<Relation> simRel = datasetSimRel.union(publicationSimRel).map(s -> {
+        JavaRDD<DLIRelation> simRel = datasetSimRel.union(publicationSimRel).map(s -> {
-                    final Relation r = new Relation();
+                    final DLIRelation r = new DLIRelation();
                     r.setSource(s._1());
                     r.setTarget(s._2());
                     r.setRelType("similar");
                     return r;
                 }
         );
-        spark.createDataset(simRel.rdd(), Encoders.bean(Relation.class)).distinct().write()
+        spark.createDataset(simRel.rdd(), Encoders.bean(DLIRelation.class)).distinct().write()
                 .mode(SaveMode.Overwrite).save(targetPath+"/pid_simRel");
     }
 }

dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/sx/graph/SparkScholexplorerCreateRawGraphJob.java

@@ -7,6 +7,7 @@ import eu.dnetlib.dhp.application.ArgumentApplicationParser;
 import eu.dnetlib.dhp.schema.oaf.Relation;
 import eu.dnetlib.dhp.schema.scholexplorer.DLIDataset;
 import eu.dnetlib.dhp.schema.scholexplorer.DLIPublication;
+import eu.dnetlib.dhp.schema.scholexplorer.DLIRelation;
 import eu.dnetlib.dhp.schema.scholexplorer.DLIUnknown;
 import eu.dnetlib.dhp.utils.DHPUtils;
 import net.minidev.json.JSONArray;
@@ -135,19 +136,19 @@ public class SparkScholexplorerCreateRawGraphJob {
 
 
                 SparkSXGeneratePidSimlarity.generateDataFrame(spark, sc, inputPath.replace("/relation",""),targetPath.replace("/relation","") );
-                RDD<Relation> rdd = union.mapToPair((PairFunction<String, String, Relation>) f -> {
+                RDD<DLIRelation> rdd = union.mapToPair((PairFunction<String, String, DLIRelation>) f -> {
                     final String source = getJPathString(SOURCEJSONPATH, f);
                     final String target = getJPathString(TARGETJSONPATH, f);
                     final String reltype = getJPathString(RELJSONPATH, f);
                     ObjectMapper mapper = new ObjectMapper();
                     mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
-                    return new Tuple2<>(DHPUtils.md5(String.format("%s::%s::%s", source.toLowerCase(), reltype.toLowerCase(), target.toLowerCase())), mapper.readValue(f, Relation.class));
+                    return new Tuple2<>(DHPUtils.md5(String.format("%s::%s::%s", source.toLowerCase(), reltype.toLowerCase(), target.toLowerCase())), mapper.readValue(f, DLIRelation.class));
                 }).reduceByKey((a, b) -> {
                     a.mergeFrom(b);
                     return a;
                 }).map(Tuple2::_2).rdd();
 
-                spark.createDataset(rdd, Encoders.bean(Relation.class)).write().mode(SaveMode.Overwrite).save(targetPath);
+                spark.createDataset(rdd, Encoders.bean(DLIRelation.class)).write().mode(SaveMode.Overwrite).save(targetPath);
                 Dataset<Relation> rel_ds =spark.read().load(targetPath).as(Encoders.bean(Relation.class));
 
                 System.out.println("LOADING PATH :"+targetPath.replace("/relation","")+"/pid_simRel");

dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/sx/graph/parser/AbstractScholexplorerParser.java

@@ -2,10 +2,13 @@ package eu.dnetlib.dhp.sx.graph.parser;
 
 
 import eu.dnetlib.dhp.parser.utility.VtdUtilityParser;
-import eu.dnetlib.dhp.schema.oaf.Oaf;
+import eu.dnetlib.dhp.schema.oaf.*;
-import eu.dnetlib.dhp.schema.oaf.Qualifier;
+import eu.dnetlib.dhp.schema.scholexplorer.DLIDataset;
-import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+import eu.dnetlib.dhp.schema.scholexplorer.DLIRelation;
+import eu.dnetlib.dhp.schema.scholexplorer.DLIUnknown;
+import eu.dnetlib.dhp.schema.scholexplorer.ProvenaceInfo;
 import eu.dnetlib.dhp.utils.DHPUtils;
+import eu.dnetlib.scholexplorer.relation.RelInfo;
 import eu.dnetlib.scholexplorer.relation.RelationMapper;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.logging.Log;
@@ -15,6 +18,7 @@ import javax.xml.stream.XMLStreamReader;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 public abstract class AbstractScholexplorerParser {
 
@@ -104,6 +108,74 @@ public abstract class AbstractScholexplorerParser {
         return type+ DHPUtils.md5(String.format("%s::%s", pid.toLowerCase().trim(), pidType.toLowerCase().trim()));
     }
 
+    protected DLIUnknown createUnknownObject(final String pid, final String pidType, final KeyValue cf, final DataInfo di, final String dateOfCollection) {
+        final DLIUnknown uk = new DLIUnknown();
+        uk.setId(generateId(pid, pidType, "unknown"));
+        ProvenaceInfo pi = new ProvenaceInfo();
+        pi.setId(cf.getKey());
+        pi.setName(cf.getValue());
+        pi.setCompletionStatus("incomplete");
+        uk.setDataInfo(di);
+        uk.setDlicollectedfrom(Collections.singletonList(pi));
+        final StructuredProperty sourcePid = new StructuredProperty();
+        sourcePid.setValue(pid);
+        final Qualifier pt = new Qualifier();
+        pt.setClassname(pidType);
+        pt.setClassid(pidType);
+        pt.setSchemename("dnet:pid_types");
+        pt.setSchemeid("dnet:pid_types");
+        sourcePid.setQualifier(pt);
+        uk.setPid(Collections.singletonList(sourcePid));
+        uk.setDateofcollection(dateOfCollection);
+        return uk;
+    }
+
+    protected void generateRelations(RelationMapper relationMapper, Result parsedObject, List<Oaf> result, DataInfo di, String dateOfCollection, List<VtdUtilityParser.Node> relatedIdentifiers) {
+        if(relatedIdentifiers!= null) {
+            result.addAll(relatedIdentifiers.stream()
+                    .flatMap(n -> {
+                        final List<DLIRelation> rels = new ArrayList<>();
+                        DLIRelation r = new DLIRelation();
+                        r.setSource(parsedObject.getId());
+                        final String relatedPid = n.getTextValue();
+                        final String relatedPidType = n.getAttributes().get("relatedIdentifierType");
+                        final String relatedType = n.getAttributes().getOrDefault("entityType", "unknown");
+                        String relationSemantic = n.getAttributes().get("relationType");
+                        String inverseRelation;
+                        final String targetId = generateId(relatedPid, relatedPidType, relatedType);
+                        r.setDateOfCollection(dateOfCollection);
+                        if (relationMapper.containsKey(relationSemantic.toLowerCase()))
+                        {
+                            RelInfo relInfo = relationMapper.get(relationSemantic.toLowerCase());
+                            relationSemantic = relInfo.getOriginal();
+                            inverseRelation = relInfo.getInverse();
+                        }
+                        else {
+                            relationSemantic = "Unknown";
+                            inverseRelation = "Unknown";
+                        }
+                        r.setTarget(targetId);
+                        r.setRelType(relationSemantic);
+                        r.setRelClass("datacite");
+                        r.setCollectedFrom(parsedObject.getCollectedfrom());
+                        r.setDataInfo(di);
+                        rels.add(r);
+                        r = new DLIRelation();
+                        r.setDataInfo(di);
+                        r.setSource(targetId);
+                        r.setTarget(parsedObject.getId());
+                        r.setRelType(inverseRelation);
+                        r.setRelClass("datacite");
+                        r.setCollectedFrom(parsedObject.getCollectedfrom());
+                        r.setDateOfCollection(dateOfCollection);
+                        rels.add(r);
+                        if("unknown".equalsIgnoreCase(relatedType))
+                            result.add(createUnknownObject(relatedPid, relatedPidType, parsedObject.getCollectedfrom().get(0), di, dateOfCollection));
+                        return rels.stream();
+                    }).collect(Collectors.toList()));
+        }
+    }
+
 
 
 

dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/sx/graph/parser/DatasetScholexplorerParser.java

@@ -42,7 +42,8 @@ public class DatasetScholexplorerParser extends AbstractScholexplorerParser {
             parsedObject.setOriginalId(Collections.singletonList(VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='recordIdentifier']")));
 
             parsedObject.setOriginalObjIdentifier(VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='objIdentifier']"));
-            parsedObject.setDateofcollection(VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='dateOfCollection']"));
+            String dateOfCollection = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='dateOfCollection']");
+            parsedObject.setDateofcollection(dateOfCollection);
 
             final String resolvedDate = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='resolvedDate']");
 
@@ -123,7 +124,7 @@ public class DatasetScholexplorerParser extends AbstractScholexplorerParser {
             List<String> descs = VtdUtilityParser.getTextValue(ap, vn, "//*[local-name()='description']");
             if (descs != null && descs.size() > 0)
                 parsedObject.setDescription(descs.stream()
-                        .map(it -> it.length() < 512 ? it : it.substring(0, 512))
+                        .map(it -> it.length() < 10000 ? it : it.substring(0, 10000))
                         .map(it -> {
                             final Field<String> d = new Field<>();
                             d.setValue(it);
@@ -137,48 +138,7 @@ public class DatasetScholexplorerParser extends AbstractScholexplorerParser {
                             Arrays.asList("relatedIdentifierType", "relationType", "entityType", "inverseRelationType"));
 
 
-            if(relatedIdentifiers!= null) {
+            generateRelations(relationMapper, parsedObject, result, di, dateOfCollection, relatedIdentifiers);
-                result.addAll(relatedIdentifiers.stream()
-                        .flatMap(n -> {
-                            final List<Relation> rels = new ArrayList<>();
-                            Relation r = new Relation();
-                            r.setSource(parsedObject.getId());
-                            final String relatedPid = n.getTextValue();
-                            final String relatedPidType = n.getAttributes().get("relatedIdentifierType");
-                            final String relatedType = n.getAttributes().getOrDefault("entityType", "unknown");
-                            String relationSemantic = n.getAttributes().get("relationType");
-                            String inverseRelation = n.getAttributes().get("inverseRelationType");
-                            final String targetId = generateId(relatedPid, relatedPidType, relatedType);
-
-                            if (relationMapper.containsKey(relationSemantic.toLowerCase()))
-                            {
-                                RelInfo relInfo = relationMapper.get(relationSemantic.toLowerCase());
-                                relationSemantic = relInfo.getOriginal();
-                                inverseRelation = relInfo.getInverse();
-                            }
-                            else {
-                                relationSemantic = "Unknown";
-                                inverseRelation = "Unknown";
-                            }
-                            r.setTarget(targetId);
-                            r.setRelType(relationSemantic);
-                            r.setRelClass("datacite");
-                            r.setCollectedFrom(parsedObject.getCollectedfrom());
-                            r.setDataInfo(di);
-                            rels.add(r);
-                            r = new Relation();
-                            r.setDataInfo(di);
-                            r.setSource(targetId);
-                            r.setTarget(parsedObject.getId());
-                            r.setRelType(inverseRelation);
-                            r.setRelClass("datacite");
-                            r.setCollectedFrom(parsedObject.getCollectedfrom());
-                            rels.add(r);
-                            if("unknown".equalsIgnoreCase(relatedType))
-                                result.add(createUnknownObject(relatedPid, relatedPidType, parsedObject.getCollectedfrom().get(0), di));
-                            return rels.stream();
-                        }).collect(Collectors.toList()));
-            }
 
 
             final List<Node> hostedBy =
@@ -199,7 +159,7 @@ public class DatasetScholexplorerParser extends AbstractScholexplorerParser {
             }
 
 
-            List<StructuredProperty> subjects = extractSubject(VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='resource']//*[local-name()='subject']", Arrays.asList("subjectScheme")));
+            List<StructuredProperty> subjects = extractSubject(VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='resource']//*[local-name()='subject']", Collections.singletonList("subjectScheme")));
 
             parsedObject.setSubject(subjects);
 
@@ -265,24 +225,6 @@ public class DatasetScholexplorerParser extends AbstractScholexplorerParser {
     }
 
 
-    private DLIUnknown createUnknownObject(final String pid, final String pidType, final KeyValue cf, final DataInfo di) {
+
-        final DLIUnknown uk = new DLIUnknown();
+
-        uk.setId(generateId(pid, pidType, "unknown"));
-        ProvenaceInfo pi = new ProvenaceInfo();
-        pi.setId(cf.getKey());
-        pi.setName(cf.getValue());
-        pi.setCompletionStatus("incomplete");
-        uk.setDataInfo(di);
-        uk.setDlicollectedfrom(Collections.singletonList(pi));
-        final StructuredProperty sourcePid = new StructuredProperty();
-        sourcePid.setValue(pid);
-        final Qualifier pt = new Qualifier();
-        pt.setClassname(pidType);
-        pt.setClassid(pidType);
-        pt.setSchemename("dnet:pid_types");
-        pt.setSchemeid("dnet:pid_types");
-        sourcePid.setQualifier(pt);
-        uk.setPid(Collections.singletonList(sourcePid));
-        return uk;
-    }
 }

dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/sx/graph/parser/PublicationScholexplorerParser.java

@@ -38,7 +38,8 @@ public class PublicationScholexplorerParser extends AbstractScholexplorerParser
             di.setDeletedbyinference(false);
             di.setInvisible(false);
 
-            parsedObject.setDateofcollection(VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='dateOfCollection']"));
+            String dateOfCollection = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='dateOfCollection']");
+            parsedObject.setDateofcollection(dateOfCollection);
 
             final String resolvedDate = VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='resolvedDate']");
             parsedObject.setOriginalId(Collections.singletonList(VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='recordIdentifier']")));
@@ -118,48 +119,7 @@ public class PublicationScholexplorerParser extends AbstractScholexplorerParser
             final List<Node> relatedIdentifiers =
                     VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='relatedIdentifier']",
                             Arrays.asList("relatedIdentifierType", "relationType", "entityType", "inverseRelationType"));
-
+            generateRelations(relationMapper, parsedObject, result, di, dateOfCollection, relatedIdentifiers);
-
-            if (relatedIdentifiers != null) {
-                result.addAll(relatedIdentifiers.stream()
-                        .flatMap(n -> {
-                            final List<Relation> rels = new ArrayList<>();
-                            Relation r = new Relation();
-                            r.setSource(parsedObject.getId());
-                            final String relatedPid = n.getTextValue();
-                            final String relatedPidType = n.getAttributes().get("relatedIdentifierType");
-                            final String relatedType = n.getAttributes().getOrDefault("entityType", "unknown");
-                            String relationSemantic = n.getAttributes().get("relationType");
-                            String inverseRelation = "Unknown";
-                            final String targetId = generateId(relatedPid, relatedPidType, relatedType);
-
-                            if (relationMapper.containsKey(relationSemantic.toLowerCase()))
-                            {
-                                RelInfo relInfo = relationMapper.get(relationSemantic.toLowerCase());
-                                relationSemantic = relInfo.getOriginal();
-                                inverseRelation = relInfo.getInverse();
-                            }
-                            else {
-                                relationSemantic = "Unknown";
-                            }
-                            r.setTarget(targetId);
-                            r.setRelType(relationSemantic);
-                            r.setCollectedFrom(parsedObject.getCollectedfrom());
-                            r.setRelClass("datacite");
-                            r.setDataInfo(di);
-                            rels.add(r);
-                            r = new Relation();
-                            r.setDataInfo(di);
-                            r.setSource(targetId);
-                            r.setTarget(parsedObject.getId());
-                            r.setRelType(inverseRelation);
-                            r.setRelClass("datacite");
-                            r.setCollectedFrom(parsedObject.getCollectedfrom());
-                            rels.add(r);
-
-                            return rels.stream();
-                        }).collect(Collectors.toList()));
-            }
 
             final List<Node> hostedBy =
                     VtdUtilityParser.getTextValuesWithAttributes(ap, vn, "//*[local-name()='hostedBy']", Arrays.asList("id", "name"));
@@ -206,8 +166,8 @@ public class PublicationScholexplorerParser extends AbstractScholexplorerParser
 
             description.setValue(VtdUtilityParser.getSingleValue(ap, vn, "//*[local-name()='description']"));
 
-            if (StringUtils.isNotBlank(description.getValue()) && description.getValue().length() > 512) {
+            if (StringUtils.isNotBlank(description.getValue()) && description.getValue().length() > 10000) {
-                description.setValue(description.getValue().substring(0, 512));
+                description.setValue(description.getValue().substring(0, 10000));
             }
 
             parsedObject.setDescription(Collections.singletonList(description));

dhp-workflows/dhp-graph-provision-scholexplorer/pom.xml

@@ -69,6 +69,11 @@
 
         </dependency>
 
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+        </dependency>
+
     </dependencies>
 
 

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/provision/scholix/ScholixResource.java

@@ -3,7 +3,6 @@ package eu.dnetlib.dhp.provision.scholix;
 import eu.dnetlib.dhp.provision.scholix.summary.ScholixSummary;
 
 import java.io.Serializable;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -20,10 +19,6 @@ public class ScholixResource implements Serializable {
     private List<ScholixEntityId> publisher;
     private List<ScholixCollectedFrom> collectedFrom;
 
-
-
-
-
     public static ScholixResource fromSummary(ScholixSummary summary) {
 
         final ScholixResource resource = new ScholixResource();
@@ -38,7 +33,7 @@ public class ScholixResource implements Serializable {
         resource.setObjectType(summary.getTypology().toString());
 
 
-        if (summary.getTitle() != null && summary.getTitle().size()>0)
+        if (summary.getTitle() != null && summary.getTitle().size() > 0)
             resource.setTitle(summary.getTitle().get(0));
 
         if (summary.getAuthor() != null)
@@ -47,7 +42,7 @@ public class ScholixResource implements Serializable {
                     .collect(Collectors.toList())
             );
 
-        if (summary.getDate() != null && summary.getDate().size()>0)
+        if (summary.getDate() != null && summary.getDate().size() > 0)
             resource.setPublicationDate(summary.getDate().get(0));
         if (summary.getPublisher() != null)
             resource.setPublisher(summary.getPublisher().stream()
@@ -65,6 +60,7 @@ public class ScholixResource implements Serializable {
 
     }
 
+
     public List<ScholixIdentifier> getIdentifier() {
         return identifier;
     }

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/provision/update/Datacite2Scholix.java

@@ -165,7 +165,7 @@ public class Datacite2Scholix {
         return res;
     }
 
-    protected String generateId(final String pid, final String pidType, final String entityType) {
+    public static String generateId(final String pid, final String pidType, final String entityType) {
         String type;
         switch (entityType){
             case "publication":

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/provision/update/SparkResolveScholixTarget.java

@@ -4,18 +4,25 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import eu.dnetlib.dhp.application.ArgumentApplicationParser;
 import eu.dnetlib.dhp.provision.scholix.Scholix;
 import eu.dnetlib.dhp.provision.scholix.ScholixIdentifier;
+import eu.dnetlib.dhp.provision.scholix.ScholixRelationship;
 import eu.dnetlib.dhp.provision.scholix.ScholixResource;
 import eu.dnetlib.dhp.utils.DHPUtils;
+import eu.dnetlib.scholexplorer.relation.RelationMapper;
 import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.hadoop.io.IntWritable;
 import org.apache.hadoop.io.Text;
 import org.apache.spark.SparkConf;
 import org.apache.spark.api.java.JavaSparkContext;
+import org.apache.spark.api.java.function.FlatMapFunction;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.sql.*;
 import scala.Tuple2;
 
+import java.util.ArrayList;
 import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
 
 public class SparkResolveScholixTarget {
 
@@ -29,8 +36,6 @@ public class SparkResolveScholixTarget {
         final String sourcePath = parser.get("sourcePath");
         final String workingDirPath= parser.get("workingDirPath");
         final String indexHost= parser.get("indexHost");
-
-
         try (SparkSession spark = getSession(conf, master)){
 
             final JavaSparkContext sc = new JavaSparkContext(spark.sparkContext());
@@ -65,7 +70,55 @@ public class SparkResolveScholixTarget {
                     }, Encoders.bean(ScholixResource.class)).write().mode(SaveMode.Overwrite).save(workingDirPath+"/stepB");
 
 
+            Dataset<ScholixResource> s2 = spark.read().load(workingDirPath+"/stepB").as(Encoders.bean(ScholixResource.class));
 
+
+            s1.joinWith(s2, s1.col("target.identifier.identifier").equalTo(s2.col("identifier.identifier")), "left")
+
+                    .flatMap((FlatMapFunction<Tuple2<Scholix, ScholixResource>, Scholix>) f ->
+                    {
+
+                        final List<Scholix> res = new ArrayList<>();
+                        final Scholix s = f._1();
+                        final ScholixResource target = f._2();
+                        if (StringUtils.isNotBlank(s.getIdentifier()))
+                            res.add(s);
+                        else if (target == null) {
+                            ScholixResource currentTarget = s.getTarget();
+                            currentTarget.setObjectType("unknown");
+                            currentTarget.setDnetIdentifier(Datacite2Scholix.generateId(currentTarget.getIdentifier().get(0).getIdentifier(),currentTarget.getIdentifier().get(0).getSchema(), currentTarget.getObjectType()));
+
+                            s.generateIdentifier();
+                            res.add(s);
+                            final Scholix inverse = new Scholix();
+                            inverse.setTarget(s.getSource());
+                            inverse.setSource(s.getTarget());
+                            inverse.setLinkprovider(s.getLinkprovider());
+                            inverse.setPublicationDate(s.getPublicationDate());
+                            inverse.setPublisher(s.getPublisher());
+                            inverse.setRelationship(new ScholixRelationship(s.getRelationship().getInverse(), s.getRelationship().getSchema(), s.getRelationship().getName()));
+                            inverse.generateIdentifier();
+                            res.add(inverse);
+
+                        } else
+                        {
+                            target.setIdentifier(target.getIdentifier().stream().map(d -> new ScholixIdentifier(d.getIdentifier().toLowerCase(), d.getSchema().toLowerCase())).collect(Collectors.toList()));
+                            s.setTarget(target);
+                            s.generateIdentifier();
+                            res.add(s);
+                            final Scholix inverse = new Scholix();
+                            inverse.setTarget(s.getSource());
+                            inverse.setSource(s.getTarget());
+                            inverse.setLinkprovider(s.getLinkprovider());
+                            inverse.setPublicationDate(s.getPublicationDate());
+                            inverse.setPublisher(s.getPublisher());
+                            inverse.setRelationship(new ScholixRelationship(s.getRelationship().getInverse(), s.getRelationship().getSchema(), s.getRelationship().getName()));
+                            inverse.generateIdentifier();
+                            res.add(inverse);
+                        }
+
+                        return res.iterator();
+                    }, Encoders.bean(Scholix.class)).javaRDD().map(s -> new ObjectMapper().writeValueAsString(s)).saveAsTextFile(workingDirPath+"/resolved_json");
         }
     }
 

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/resources/eu/dnetlib/dhp/sx/index/oozie_app/config-default.xml

@@ -0,0 +1,10 @@
+<configuration>
+    <property>
+        <name>oozie.use.system.libpath</name>
+        <value>true</value>
+    </property>
+    <property>
+        <name>oozie.action.sharelib.for.spark</name>
+        <value>spark2</value>
+    </property>
+</configuration>

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/resources/eu/dnetlib/dhp/sx/index/oozie_app/workflow.xml

@@ -0,0 +1,68 @@
+<workflow-app name="Index graph to ElasticSearch" xmlns="uri:oozie:workflow:0.5">
+    <parameters>
+        <property>
+            <name>workingDirPath</name>
+            <description>the source path</description>
+        </property>
+        <property>
+            <name>sparkDriverMemory</name>
+            <description>memory for driver process</description>
+        </property>
+        <property>
+            <name>sparkExecutorMemory</name>
+            <description>memory for individual executor</description>
+        </property>
+        <property>
+            <name>index</name>
+            <description>index name</description>
+        </property>
+    </parameters>
+
+    <start to="indexSummary"/>
+
+    <kill name="Kill">
+        <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
+    </kill>
+
+    <action name="indexSummary">
+        <spark xmlns="uri:oozie:spark-action:0.2">
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <master>yarn-cluster</master>
+            <mode>cluster</mode>
+            <name>index Summary</name>
+            <class>eu.dnetlib.dhp.provision.SparkIndexCollectionOnES</class>
+            <jar>dhp-graph-provision-scholexplorer-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --driver-memory=${sparkDriverMemory} ${sparkExtraOPT} --conf spark.dynamicAllocation.maxExecutors="32" </spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingDirPath}/summary</arg>
+            <arg>--index</arg><arg>${index}_object</arg>
+            <arg>--idPath</arg><arg>id</arg>
+            <arg>--type</arg><arg>summary</arg>
+        </spark>
+        <ok to="indexScholix"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="indexScholix">
+        <spark xmlns="uri:oozie:spark-action:0.2">
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <master>yarn-cluster</master>
+            <mode>cluster</mode>
+            <name>index scholix</name>
+            <class>eu.dnetlib.dhp.provision.SparkIndexCollectionOnES</class>
+            <jar>dhp-graph-provision-scholexplorer-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory}  --driver-memory=${sparkDriverMemory} ${sparkExtraOPT} --conf spark.dynamicAllocation.maxExecutors="8" </spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingDirPath}/scholix_json</arg>
+            <arg>--index</arg><arg>${index}_scholix</arg>
+            <arg>--idPath</arg><arg>identifier</arg>
+            <arg>--type</arg><arg>scholix</arg>
+        </spark>
+        <ok to="End"/>
+        <error to="Kill"/>
+    </action>
+
+    <end name="End"/>
+</workflow-app>

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/resources/eu/dnetlib/dhp/sx/synch/oozie_app/config-default.xml

@@ -0,0 +1,10 @@
+<configuration>
+    <property>
+        <name>oozie.use.system.libpath</name>
+        <value>true</value>
+    </property>
+    <property>
+        <name>oozie.action.sharelib.for.spark</name>
+        <value>spark2</value>
+    </property>
+</configuration>

dhp-workflows/dhp-graph-provision-scholexplorer/src/main/resources/eu/dnetlib/dhp/sx/synch/oozie_app/workflow.xml

@@ -0,0 +1,97 @@
+<workflow-app name="Keep On Synch datacite" xmlns="uri:oozie:workflow:0.5">
+    <parameters>
+        <property>
+            <name>workingDirPath</name>
+            <description>the source path</description>
+        </property>
+        <property>
+            <name>sparkDriverMemory</name>
+            <description>memory for driver process</description>
+        </property>
+        <property>
+            <name>sparkExecutorMemory</name>
+            <description>memory for individual executor</description>
+        </property>
+        <property>
+            <name>index</name>
+            <description>index name</description>
+        </property>
+        <property>
+            <name>timestamp</name>
+            <description>timestamp from incremental harvesting</description>
+        </property>
+    </parameters>
+
+    <start to="ResetWorkingPath"/>
+
+    <kill name="Kill">
+        <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
+    </kill>
+
+
+    <action name="ResetWorkingPath">
+        <fs>
+            <delete path='${workingDirPath}/synch'/>
+            <mkdir path='${workingDirPath}/synch'/>
+        </fs>
+        <ok to="ImportDataciteUpdate"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ImportDataciteUpdate">
+        <java>
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <main-class>eu.dnetlib.dhp.provision.update.RetrieveUpdateFromDatacite</main-class>
+            <arg>-t</arg><arg>${workingDirPath}/synch/input_json</arg>
+            <arg>-n</arg><arg>${nameNode}</arg>
+            <arg>-ts</arg><arg>${timestamp}</arg>
+            <arg>-ih</arg><arg>ip-90-147-167-25.ct1.garrservices.it</arg>
+            <arg>-in</arg><arg>datacite</arg>
+        </java>
+        <ok to="End"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="resolveScholix">
+        <spark xmlns="uri:oozie:spark-action:0.2">
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <master>yarn-cluster</master>
+            <mode>cluster</mode>
+            <name>Resolve and generate Scholix</name>
+            <class>eu.dnetlib.dhp.provision.update.SparkResolveScholixTarget</class>
+            <jar>dhp-graph-provision-scholexplorer-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --driver-memory=${sparkDriverMemory} ${sparkExtraOPT} --conf spark.dynamicAllocation.maxExecutors="32" </spark-opts>
+            <arg>-m</arg> <arg>yarn-cluster</arg>
+            <arg>-s</arg><arg>${workingDirPath}/synch/input_json</arg>
+            <arg>-w</arg><arg>${workingDirPath}/synch</arg>
+            <arg>-h</arg><arg>ip-90-147-167-25.ct1.garrservices.it</arg>
+        </spark>
+        <ok to="indexScholix"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="indexScholix">
+        <spark xmlns="uri:oozie:spark-action:0.2">
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <master>yarn-cluster</master>
+            <mode>cluster</mode>
+            <name>index scholix</name>
+            <class>eu.dnetlib.dhp.provision.SparkIndexCollectionOnES</class>
+            <jar>dhp-graph-provision-scholexplorer-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory}  --driver-memory=${sparkDriverMemory} ${sparkExtraOPT} --conf spark.dynamicAllocation.maxExecutors="8" </spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingDirPath}/synch/resolved_json</arg>
+            <arg>--index</arg><arg>${index}_scholix</arg>
+            <arg>--idPath</arg><arg>identifier</arg>
+            <arg>--type</arg><arg>scholix</arg>
+        </spark>
+        <ok to="End"/>
+        <error to="Kill"/>
+    </action>
+
+    <end name="End"/>
+</workflow-app>

dhp-workflows/dhp-graph-provision-scholexplorer/src/test/java/eu/dnetlib/dhp/provision/DataciteClientTest.java

@@ -3,24 +3,18 @@ package eu.dnetlib.dhp.provision;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import eu.dnetlib.dhp.provision.scholix.Scholix;
 import eu.dnetlib.dhp.provision.scholix.ScholixResource;
-import eu.dnetlib.dhp.provision.update.*;
+import eu.dnetlib.dhp.provision.update.CrossrefClient;
+import eu.dnetlib.dhp.provision.update.Datacite2Scholix;
+import eu.dnetlib.dhp.provision.update.DataciteClient;
 import eu.dnetlib.scholexplorer.relation.RelationMapper;
 import org.apache.commons.io.IOUtils;
-import org.apache.http.client.methods.CloseableHttpResponse;
-import org.apache.http.client.methods.HttpPost;
-import org.apache.http.entity.StringEntity;
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.apache.http.impl.client.HttpClients;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
-import java.io.IOException;
 import java.util.List;
 
 
 public class DataciteClientTest {
-
-
     @Test
     public void dataciteSCholixTest() throws Exception {
         final String json = IOUtils.toString(getClass().getResourceAsStream("datacite.json"));
@@ -32,66 +26,18 @@ public class DataciteClientTest {
     }
 
 
-
-    public void testClient() throws Exception {
-        RetrieveUpdateFromDatacite.main(new String[]{
-                "-n", "file:///data/new_s2.txt",
-                "-t", "/data/new_s2.txt",
-                "-ts", "1585760736",
-                "-ih", "ip-90-147-167-25.ct1.garrservices.it",
-                "-in", "datacite",
-        });
-
-
-        SparkResolveScholixTarget.main(new String[]{
-                "-s", "file:///data/new_s.txt",
-                "-m", "local[*]",
-                "-w", "/data/scholix/provision",
-                "-h", "ip-90-147-167-25.ct1.garrservices.it",
-
-        });
-    }
-
-
     public void testResolveDataset() throws Exception {
-        DataciteClient dc  = new DataciteClient("ip-90-147-167-25.ct1.garrservices.it");
+        DataciteClient dc = new DataciteClient("ip-90-147-167-25.ct1.garrservices.it");
         ScholixResource datasetByDOI = dc.getDatasetByDOI("10.17182/hepdata.15392.v1/t5");
         Assertions.assertNotNull(datasetByDOI);
         System.out.println(new ObjectMapper().writeValueAsString(datasetByDOI));
 
 
         CrossrefClient cr = new CrossrefClient("ip-90-147-167-25.ct1.garrservices.it");
-        ScholixResource crossrefByDOI =  cr.getResourceByDOI("10.26850/1678-4618eqj.v35.1.2010.p41-46");
+        ScholixResource crossrefByDOI = cr.getResourceByDOI("10.26850/1678-4618eqj.v35.1.2010.p41-46");
         Assertions.assertNotNull(crossrefByDOI);
         System.out.println(new ObjectMapper().writeValueAsString(crossrefByDOI));
 
 
-
-    }
-
-    private String getResponse(final String url,final String json ) {
-        CloseableHttpClient client = HttpClients.createDefault();
-        try {
-
-            HttpPost httpPost = new HttpPost(url);
-            if (json!= null) {
-                StringEntity entity = new StringEntity(json);
-                httpPost.setEntity(entity);
-                httpPost.setHeader("Accept", "application/json");
-                httpPost.setHeader("Content-type", "application/json");
-            }
-            CloseableHttpResponse response = client.execute(httpPost);
-
-            return IOUtils.toString(response.getEntity().getContent());
-        } catch (Throwable e) {
-            throw new RuntimeException("Error on executing request ",e);
-        } finally {
-            try {
-                client.close();
-            } catch (IOException e) {
-                throw new RuntimeException("Unable to close client ",e);
-            }
-        }
-
     }
 }