[provision] serialize measures defined on the result level

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

@@ -23,7 +23,6 @@ import javax.xml.transform.stream.StreamResult;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.http.protocol.HTTP;
 import org.apache.spark.util.LongAccumulator;
 import org.dom4j.Document;
 import org.dom4j.DocumentException;
@@ -50,6 +49,7 @@ import eu.dnetlib.dhp.schema.common.*;
 import eu.dnetlib.dhp.schema.oaf.*;
 import eu.dnetlib.dhp.schema.oaf.Result;
 import eu.dnetlib.dhp.schema.oaf.utils.IdentifierFactory;
+import scala.Tuple2;
 
 public class XmlRecordFactory implements Serializable {
 
@@ -209,6 +209,10 @@ public class XmlRecordFactory implements Serializable {
 		if (ModelSupport.isResult(type)) {
 			final Result r = (Result) entity;
 
+			if (r.getMeasures() != null) {
+				metadata.addAll(measuresAsXml(r.getMeasures()));
+			}
+
 			if (r.getContext() != null) {
 				contexts.addAll(r.getContext().stream().map(c -> c.getId()).collect(Collectors.toList()));
 				/* FIXME: Workaround for CLARIN mining issue: #3670#note-29 */
@@ -936,6 +940,23 @@ public class XmlRecordFactory implements Serializable {
 		return metadata;
 	}
 
+	private List<String> measuresAsXml(List<Measure> measures) {
+		return measures
+			.stream()
+			.flatMap(
+				m -> m
+					.getUnit()
+					.stream()
+					.map(
+						u -> Lists
+							.newArrayList(
+								new Tuple2<>("id", m.getId()),
+								new Tuple2<>("key", u.getKey()),
+								new Tuple2<>("value", u.getValue())))
+					.map(l -> XmlSerializationUtils.asXmlElement("measure", l)))
+			.collect(Collectors.toList());
+	}
+
 	private String getAuthorPidType(final String s) {
 		return XmlSerializationUtils
 			.escapeXml(s)

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

@@ -5,7 +5,10 @@ import static eu.dnetlib.dhp.oa.provision.utils.GraphMappingUtils.removePrefix;
 import static org.apache.commons.lang3.StringUtils.isBlank;
 import static org.apache.commons.lang3.StringUtils.isNotBlank;
 
+import java.util.List;
+
 import eu.dnetlib.dhp.schema.oaf.*;
+import scala.Tuple2;
 
 public class XmlSerializationUtils {
 
@@ -147,4 +150,15 @@ public class XmlSerializationUtils {
 			.append(attr("schemename", q.getSchemename()))
 			.toString();
 	}
+
+	public static String asXmlElement(String name, List<Tuple2<String, String>> attributes) {
+		StringBuilder sb = new StringBuilder();
+		sb.append("<");
+		sb.append(name);
+		for (Tuple2<String, String> attr : attributes) {
+			sb.append(" ").append(attr(attr._1(), attr._2()));
+		}
+		sb.append("/>");
+		return sb.toString();
+	}
 }

dhp-workflows/dhp-graph-provision/src/test/java/eu/dnetlib/dhp/oa/provision/XmlRecordFactoryTest.java

@@ -69,6 +69,13 @@ public class XmlRecordFactoryTest {
 
 		assertEquals("1721.47", doc.valueOf("//processingchargeamount/text()"));
 		assertEquals("EUR", doc.valueOf("//processingchargecurrency/text()"));
+
+		assertEquals(
+			"1.00889953098e-08", doc.valueOf("//*[local-name() = 'result']/measure[./@id = 'influence']/@value"));
+		assertEquals(
+			"30.6576853333", doc.valueOf("//*[local-name() = 'result']/measure[./@id = 'popularity_alt']/@value"));
+		assertEquals(
+			"4.62970429725e-08", doc.valueOf("//*[local-name() = 'result']/measure[./@id = 'popularity']/@value"));
 	}
 
 	@Test

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

@@ -1,4 +1,33 @@
 {
+  "measures": [
+    {
+      "id": "influence",
+      "unit": [
+        {
+          "key": "score",
+          "value": "1.00889953098e-08"
+        }
+      ]
+    },
+    {
+      "id": "popularity_alt",
+      "unit": [
+        {
+          "key": "score",
+          "value": "30.6576853333"
+        }
+      ]
+    },
+    {
+      "id": "popularity",
+      "unit": [
+        {
+          "key": "score",
+          "value": "4.62970429725e-08"
+        }
+      ]
+    }
+  ],
   "author": [
     {
       "affiliation": [],
@@ -284,6 +313,35 @@
   "id": "50|CSC_________::0000ec4dd9df012feaafa77e71a0fb4c",
   "instance": [
     {
+      "measures": [
+        {
+          "id": "influence",
+          "unit": [
+            {
+              "key": "score",
+              "value": "1.00889953098e-08"
+            }
+          ]
+        },
+        {
+          "id": "popularity_alt",
+          "unit": [
+            {
+              "key": "score",
+              "value": "30.6576853333"
+            }
+          ]
+        },
+        {
+          "id": "popularity",
+          "unit": [
+            {
+              "key": "score",
+              "value": "4.62970429725e-08"
+            }
+          ]
+        }
+      ],
       "pid": [
         {
           "dataInfo": {