diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/migration/ExtractEntitiesFromHDFSJob.java b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/migration/ExtractEntitiesFromHDFSJob.java
new file mode 100644
index 0000000000..f2d9caebf6
--- /dev/null
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/migration/ExtractEntitiesFromHDFSJob.java
@@ -0,0 +1,56 @@
+package eu.dnetlib.dhp.migration;
+
+import eu.dnetlib.dhp.application.ArgumentApplicationParser;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.io.Text;
+import org.apache.spark.api.java.JavaRDD;
+import org.apache.spark.api.java.JavaSparkContext;
+import org.apache.spark.sql.SparkSession;
+import scala.Tuple2;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class ExtractEntitiesFromHDFSJob {
+
+
+    private static List<String> folderNames = Arrays.asList("db_entities", "oaf_entities", "odf_entities");
+
+    public static void main(String[] args) throws Exception {
+        final ArgumentApplicationParser parser = new ArgumentApplicationParser(
+                IOUtils.toString(MigrateMongoMdstoresApplication.class.getResourceAsStream("/eu/dnetlib/dhp/migration/extract_entities_from_hdfs_parameters.json")));
+        parser.parseArgument(args);
+
+        final SparkSession spark = SparkSession
+                .builder()
+                .appName(ExtractEntitiesFromHDFSJob.class.getSimpleName())
+                .master(parser.get("master"))
+                .getOrCreate();
+
+        final String sourcePath = parser.get("sourcePath");
+        final String targetPath = parser.get("graphRawPath");
+        final String entity = parser.get("entity");
+
+
+        final JavaSparkContext sc = new JavaSparkContext(spark.sparkContext());
+
+
+        JavaRDD<String> inputRdd = sc.emptyRDD();
+
+
+        folderNames.forEach(p -> inputRdd.union(
+                sc.sequenceFile(sourcePath+"/"+p, Text.class, Text.class)
+                    .map(k -> new Tuple2<>(k._1().toString(), k._2().toString()))
+                        .filter(k -> isEntityType(k._1(), entity))
+                        .map(Tuple2::_2))
+        );
+
+        inputRdd.saveAsTextFile(targetPath+"/"+entity);
+    }
+
+
+    private static boolean isEntityType(final String item, final String entity) {
+        return StringUtils.substringAfter(item, ":").equalsIgnoreCase(entity);
+    }
+}
diff --git a/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/extract_entities_from_hdfs_parameters.json b/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/extract_entities_from_hdfs_parameters.json
new file mode 100644
index 0000000000..f179ee0f80
--- /dev/null
+++ b/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/extract_entities_from_hdfs_parameters.json
@@ -0,0 +1,26 @@
+[
+	{
+		"paramName": "s",
+		"paramLongName": "sourcePath",
+		"paramDescription": "the HDFS  source path which contains the sequential file",
+		"paramRequired": true
+	},
+	{
+		"paramName": "mt",
+		"paramLongName": "master",
+		"paramDescription": "should be local or yarn",
+		"paramRequired": true
+	},
+	{
+		"paramName": "g",
+		"paramLongName": "graphRawPath",
+		"paramDescription": "the path of the graph Raw in hdfs",
+		"paramRequired": true
+	},
+	{
+		"paramName": "e",
+		"paramLongName": "entity",
+		"paramDescription": "The entity to extract",
+		"paramRequired": true
+	}
+]
\ No newline at end of file
diff --git a/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/oozie_app/config-default.xml b/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/oozie_app/config-default.xml
new file mode 100644
index 0000000000..51e48d8f75
--- /dev/null
+++ b/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/oozie_app/config-default.xml
@@ -0,0 +1,22 @@
+<configuration>
+    <property>
+        <name>jobTracker</name>
+        <value>yarnRM</value>
+    </property>
+    <property>
+        <name>nameNode</name>
+        <value>hdfs://nameservice1</value>
+    </property>
+    <property>
+        <name>oozie.use.system.libpath</name>
+        <value>true</value>
+    </property>
+    <property>
+        <name>oozie.action.sharelib.for.spark</name>
+        <value>spark2</value>
+    </property>
+    <property>
+        <name>hdfsUser</name>
+        <value>dnet</value>
+    </property>
+</configuration>
\ No newline at end of file
diff --git a/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/oozie_app/workflow.xml b/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/oozie_app/workflow.xml
new file mode 100644
index 0000000000..309a6d90f0
--- /dev/null
+++ b/dhp-workflows/dhp-aggregation/src/main/resources/eu/dnetlib/dhp/migration/oozie_app/workflow.xml
@@ -0,0 +1,282 @@
+<workflow-app name="import Entities from aggretor to HDFS" xmlns="uri:oozie:workflow:0.5">
+    <parameters>
+        <property>
+            <name>workingPath</name>
+            <description>the base path to store hdfs file</description>
+        </property>
+        <property>
+            <name>graphRawPath</name>
+            <description>the graph Raw base path</description>
+        </property>
+
+        <property>
+            <name>postgresURL</name>
+            <description>the postgres URL to access to the database</description>
+        </property>
+        <property>
+            <name>postgresUser</name>
+            <description>the user postgres</description>
+        </property>
+        <property>
+            <name>postgresPassword</name>
+            <description>the password postgres</description>
+        </property>
+        <property>
+            <name>mongourl</name>
+            <description>mongoDB url, example: mongodb://[username:password@]host[:port]</description>
+        </property>
+        <property>
+            <name>mongoDb</name>
+            <description>mongo database</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>sparkExecutorCores</name>
+            <description>number of cores used by single executor</description>
+        </property>
+    </parameters>
+
+    <start to="ResetWorkingPath"/>
+
+
+    <kill name="Kill">
+        <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
+    </kill>
+
+    <action name="ResetWorkingPath">
+        <fs>
+            <delete path='${workingPath}'/>
+            <mkdir path='${workingPath}'/>
+        </fs>
+        <ok to="ImportEntitiesFromPostgres"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="ImportEntitiesFromPostgres">
+        <java>
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <main-class>eu.dnetlib.dhp.migration.MigrateDbEntitiesApplication</main-class>
+            <arg>-p</arg><arg>${workingPath}/db_entities</arg>
+            <arg>-n</arg><arg>${nameNode}</arg>
+            <arg>-u</arg><arg>${hdfsUser}</arg>
+            <arg>-dburl</arg><arg>${postgresURL}</arg>
+            <arg>-dbuser</arg><arg>${postgresUser}</arg>
+            <arg>-dbpasswd</arg><arg>${postgresPassword}</arg>
+        </java>
+        <ok to="ImportODFEntitiesFromMongoDB"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="ImportODFEntitiesFromMongoDB">
+        <java>
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <main-class>eu.dnetlib.dhp.migration.MigrateMongoMdstoresApplication</main-class>
+            <arg>-p</arg><arg>${workingPath}/odf_entities</arg>
+            <arg>-n</arg><arg>${nameNode}</arg>
+            <arg>-u</arg><arg>${hdfsUser}</arg>
+            <arg>-mongourl</arg><arg>${mongourl}</arg>
+            <arg>-db</arg><arg>${mongoDb}</arg>
+            <arg>-f</arg><arg>ODF</arg>
+            <arg>-l</arg><arg>store</arg>
+            <arg>-i</arg><arg>cleaned</arg>
+            <arg>-pgurl</arg><arg>${postgresURL}</arg>
+            <arg>-pguser</arg><arg>${postgresUser}</arg>
+            <arg>-pgpasswd</arg><arg>${postgresPassword}</arg>
+        </java>
+        <ok to="ImportOAFEntitiesFromMongoDB"/>
+        <error to="Kill"/>
+    </action>
+
+    <action name="ImportOAFEntitiesFromMongoDB">
+        <java>
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <main-class>eu.dnetlib.dhp.migration.MigrateMongoMdstoresApplication</main-class>
+            <arg>-p</arg><arg>${workingPath}/oaf_entities</arg>
+            <arg>-n</arg><arg>${nameNode}</arg>
+            <arg>-u</arg><arg>${hdfsUser}</arg>
+            <arg>-mongourl</arg><arg>${mongourl}</arg>
+            <arg>-db</arg><arg>${mongoDb}</arg>
+            <arg>-f</arg><arg>OAF</arg>
+            <arg>-l</arg><arg>store</arg>
+            <arg>-i</arg><arg>cleaned</arg>
+            <arg>-pgurl</arg><arg>${postgresURL}</arg>
+            <arg>-pguser</arg><arg>${postgresUser}</arg>
+            <arg>-pgpasswd</arg><arg>${postgresPassword}</arg>
+        </java>
+        <ok to="End"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractPublication">
+        <spark xmlns="uri:oozie:spark-action:0.2">
+            <job-tracker>${jobTracker}</job-tracker>
+            <name-node>${nameNode}</name-node>
+            <master>yarn-cluster</master>
+            <mode>cluster</mode>
+            <name>ExtractEntities: publication</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/publication</arg>
+            <arg>-e</arg><arg>publication</arg>
+        </spark>
+        <ok to="ExtractDataset"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractDataset">
+        <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>ExtractEntities: dataset</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/dataset</arg>
+            <arg>-e</arg><arg>dataset</arg>
+        </spark>
+        <ok to="ExtractSoftware"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractSoftware">
+        <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>ExtractEntities: software</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/software</arg>
+            <arg>-e</arg><arg>software</arg>
+        </spark>
+        <ok to="ExtractORP"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractORP">
+        <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>ExtractEntities: otherresearchproduct</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/otherresearchproduct</arg>
+            <arg>-e</arg><arg>otherresearchproduct</arg>
+        </spark>
+        <ok to="ExtractDatasource"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractDatasource">
+        <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>ExtractEntities: datasource</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/datasource</arg>
+            <arg>-e</arg><arg>datasource</arg>
+        </spark>
+        <ok to="ExtractOrganization"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractOrganization">
+        <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>ExtractEntities: organization</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/organization</arg>
+            <arg>-e</arg><arg>organization</arg>
+        </spark>
+        <ok to="ExtractProject"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractProject">
+        <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>ExtractEntities: project</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/project</arg>
+            <arg>-e</arg><arg>project</arg>
+        </spark>
+        <ok to="ExtractRelation"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <action name="ExtractRelation">
+        <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>ExtractEntities: relation</name>
+            <class>eu.dnetlib.dhp.migration.ExtractEntitiesFromHDFSJob</class>
+            <jar>dhp-aggregation-${projectVersion}.jar</jar>
+            <spark-opts>--executor-memory ${sparkExecutorMemory} --executor-cores ${sparkExecutorCores} --driver-memory=${sparkDriverMemory} --conf spark.extraListeners="com.cloudera.spark.lineage.NavigatorAppListener" --conf spark.sql.queryExecutionListeners="com.cloudera.spark.lineage.NavigatorQueryListener" --conf spark.sql.warehouse.dir="/user/hive/warehouse"</spark-opts>
+            <arg>-mt</arg> <arg>yarn-cluster</arg>
+            <arg>--sourcePath</arg><arg>${workingPath}</arg>
+            <arg>-g</arg><arg>${graphRawPath}/relation</arg>
+            <arg>-e</arg><arg>relation</arg>
+        </spark>
+        <ok to="End"/>
+        <error to="Kill"/>
+    </action>
+
+
+    <end name="End"/>
+</workflow-app>
\ No newline at end of file
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/graph/GraphMappingUtils.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/graph/GraphMappingUtils.java
index 0291be47ef..7c0967b2e7 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/graph/GraphMappingUtils.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/graph/GraphMappingUtils.java
@@ -18,13 +18,13 @@ public class GraphMappingUtils {
 	public final static Map<String, Class> types = Maps.newHashMap();
 
 	static {
-		types.put("datasource", Datasource.class);
-		types.put("organization", Organization.class);
+			types.put("datasource", Datasource.class);
+			types.put("organization", Organization.class);
 		types.put("project", Project.class);
-		types.put("dataset", Dataset.class);
-		types.put("otherresearchproduct", OtherResearchProduct.class);
-		types.put("software", Software.class);
-		types.put("publication", Publication.class);
+			types.put("dataset", Dataset.class);
+			types.put("otherresearchproduct", OtherResearchProduct.class);
+			types.put("software", Software.class);
+			types.put("publication", Publication.class);
 		types.put("relation", Relation.class);
 	}
 
diff --git a/pom.xml b/pom.xml
index 6f85886c02..658d8285fb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -202,7 +202,7 @@
 			<dependency>
 				<groupId>eu.dnetlib</groupId>
 				<artifactId>dnet-pace-core</artifactId>
-				<version>4.0.0-SNAPSHOT</version>
+				<version>4.0.0</version>
 			</dependency>