Implement merge extending enrichment

implemented test

src/main/java/eu/dnetlib/dhp/schema/oaf/Result.java

@@ -2,246 +2,700 @@
 package eu.dnetlib.dhp.schema.oaf;
 
 import java.io.Serializable;
-import java.util.Comparator;
+import java.util.*;
-import java.util.List;
-import java.util.Objects;
-import java.util.Optional;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import eu.dnetlib.dhp.schema.common.AccessRightComparator;
 import eu.dnetlib.dhp.schema.common.ModelConstants;
+import org.apache.commons.lang3.EnumUtils;
+import scala.Tuple2;
 
+/**
+ * The type Result.
+ */
 public class Result extends OafEntity implements Serializable {
 
+	/**
+	 * The Measures.
+	 */
 	private List<Measure> measures;
 
+	/**
+	 * The Author.
+	 */
 	private List<Author> author;
 
-	// resulttype allows subclassing results into publications | datasets | software
+	/**
+	 * The Resulttype.
+	 */
+// resulttype allows subclassing results into publications | datasets | software
 	private Qualifier resulttype;
 
-	// common fields
+	/**
+	 * The Language.
+	 */
+// common fields
 	private Qualifier language;
 
+	/**
+	 * The Country.
+	 */
 	private List<Country> country;
 
+	/**
+	 * The Subject.
+	 */
 	private List<StructuredProperty> subject;
 
+	/**
+	 * The Title.
+	 */
 	private List<StructuredProperty> title;
 
+	/**
+	 * The Relevantdate.
+	 */
 	private List<StructuredProperty> relevantdate;
 
+	/**
+	 * The Description.
+	 */
 	private List<Field<String>> description;
 
+	/**
+	 * The Dateofacceptance.
+	 */
 	private Field<String> dateofacceptance;
 
+	/**
+	 * The Publisher.
+	 */
 	private Field<String> publisher;
 
+	/**
+	 * The Embargoenddate.
+	 */
 	private Field<String> embargoenddate;
 
+	/**
+	 * The Source.
+	 */
 	private List<Field<String>> source;
 
+	/**
+	 * The Fulltext.
+	 */
 	private List<Field<String>> fulltext; // remove candidate
 
+	/**
+	 * The Format.
+	 */
 	private List<Field<String>> format;
 
+	/**
+	 * The Contributor.
+	 */
 	private List<Field<String>> contributor;
 
+	/**
+	 * The Resourcetype.
+	 */
 	private Qualifier resourcetype;
 
+	/**
+	 * The Coverage.
+	 */
 	private List<Field<String>> coverage;
 
+	/**
+	 * The Bestaccessright.
+	 */
 	private Qualifier bestaccessright;
 
+	/**
+	 * The Context.
+	 */
 	private List<Context> context;
 
+	/**
+	 * The External reference.
+	 */
 	private List<ExternalReference> externalReference;
 
+	/**
+	 * The Instance.
+	 */
 	private List<Instance> instance;
 
+	/**
+	 * Gets measures.
+	 *
+	 * @return the measures
+	 */
 	public List<Measure> getMeasures() {
 		return measures;
 	}
 
+	/**
+	 * Sets measures.
+	 *
+	 * @param measures the measures
+	 */
 	public void setMeasures(List<Measure> measures) {
 		this.measures = measures;
 	}
 
+	/**
+	 * Gets author.
+	 *
+	 * @return the author
+	 */
 	public List<Author> getAuthor() {
 		return author;
 	}
 
+	/**
+	 * Sets author.
+	 *
+	 * @param author the author
+	 */
 	public void setAuthor(List<Author> author) {
 		this.author = author;
 	}
 
+	/**
+	 * Gets resulttype.
+	 *
+	 * @return the resulttype
+	 */
 	public Qualifier getResulttype() {
 		return resulttype;
 	}
 
+	/**
+	 * Sets resulttype.
+	 *
+	 * @param resulttype the resulttype
+	 */
 	public void setResulttype(Qualifier resulttype) {
 		this.resulttype = resulttype;
 	}
 
+	/**
+	 * Gets language.
+	 *
+	 * @return the language
+	 */
 	public Qualifier getLanguage() {
 		return language;
 	}
 
+	/**
+	 * Sets language.
+	 *
+	 * @param language the language
+	 */
 	public void setLanguage(Qualifier language) {
 		this.language = language;
 	}
 
+	/**
+	 * Gets country.
+	 *
+	 * @return the country
+	 */
 	public List<Country> getCountry() {
 		return country;
 	}
 
+	/**
+	 * Sets country.
+	 *
+	 * @param country the country
+	 */
 	public void setCountry(List<Country> country) {
 		this.country = country;
 	}
 
+	/**
+	 * Gets subject.
+	 *
+	 * @return the subject
+	 */
 	public List<StructuredProperty> getSubject() {
 		return subject;
 	}
 
+	/**
+	 * Sets subject.
+	 *
+	 * @param subject the subject
+	 */
 	public void setSubject(List<StructuredProperty> subject) {
 		this.subject = subject;
 	}
 
+	/**
+	 * Gets title.
+	 *
+	 * @return the title
+	 */
 	public List<StructuredProperty> getTitle() {
 		return title;
 	}
 
+	/**
+	 * Sets title.
+	 *
+	 * @param title the title
+	 */
 	public void setTitle(List<StructuredProperty> title) {
 		this.title = title;
 	}
 
+	/**
+	 * Gets relevantdate.
+	 *
+	 * @return the relevantdate
+	 */
 	public List<StructuredProperty> getRelevantdate() {
 		return relevantdate;
 	}
 
+	/**
+	 * Sets relevantdate.
+	 *
+	 * @param relevantdate the relevantdate
+	 */
 	public void setRelevantdate(List<StructuredProperty> relevantdate) {
 		this.relevantdate = relevantdate;
 	}
 
+	/**
+	 * Gets description.
+	 *
+	 * @return the description
+	 */
 	public List<Field<String>> getDescription() {
 		return description;
 	}
 
+	/**
+	 * Sets description.
+	 *
+	 * @param description the description
+	 */
 	public void setDescription(List<Field<String>> description) {
 		this.description = description;
 	}
 
+	/**
+	 * Gets dateofacceptance.
+	 *
+	 * @return the dateofacceptance
+	 */
 	public Field<String> getDateofacceptance() {
 		return dateofacceptance;
 	}
 
+	/**
+	 * Sets dateofacceptance.
+	 *
+	 * @param dateofacceptance the dateofacceptance
+	 */
 	public void setDateofacceptance(Field<String> dateofacceptance) {
 		this.dateofacceptance = dateofacceptance;
 	}
 
+	/**
+	 * Gets publisher.
+	 *
+	 * @return the publisher
+	 */
 	public Field<String> getPublisher() {
 		return publisher;
 	}
 
+	/**
+	 * Sets publisher.
+	 *
+	 * @param publisher the publisher
+	 */
 	public void setPublisher(Field<String> publisher) {
 		this.publisher = publisher;
 	}
 
+	/**
+	 * Gets embargoenddate.
+	 *
+	 * @return the embargoenddate
+	 */
 	public Field<String> getEmbargoenddate() {
 		return embargoenddate;
 	}
 
+	/**
+	 * Sets embargoenddate.
+	 *
+	 * @param embargoenddate the embargoenddate
+	 */
 	public void setEmbargoenddate(Field<String> embargoenddate) {
 		this.embargoenddate = embargoenddate;
 	}
 
+	/**
+	 * Gets source.
+	 *
+	 * @return the source
+	 */
 	public List<Field<String>> getSource() {
 		return source;
 	}
 
+	/**
+	 * Sets source.
+	 *
+	 * @param source the source
+	 */
 	public void setSource(List<Field<String>> source) {
 		this.source = source;
 	}
 
+	/**
+	 * Gets fulltext.
+	 *
+	 * @return the fulltext
+	 */
 	public List<Field<String>> getFulltext() {
 		return fulltext;
 	}
 
+	/**
+	 * Sets fulltext.
+	 *
+	 * @param fulltext the fulltext
+	 */
 	public void setFulltext(List<Field<String>> fulltext) {
 		this.fulltext = fulltext;
 	}
 
+	/**
+	 * Gets format.
+	 *
+	 * @return the format
+	 */
 	public List<Field<String>> getFormat() {
 		return format;
 	}
 
+	/**
+	 * Sets format.
+	 *
+	 * @param format the format
+	 */
 	public void setFormat(List<Field<String>> format) {
 		this.format = format;
 	}
 
+	/**
+	 * Gets contributor.
+	 *
+	 * @return the contributor
+	 */
 	public List<Field<String>> getContributor() {
 		return contributor;
 	}
 
+	/**
+	 * Sets contributor.
+	 *
+	 * @param contributor the contributor
+	 */
 	public void setContributor(List<Field<String>> contributor) {
 		this.contributor = contributor;
 	}
 
+	/**
+	 * Gets resourcetype.
+	 *
+	 * @return the resourcetype
+	 */
 	public Qualifier getResourcetype() {
 		return resourcetype;
 	}
 
+	/**
+	 * Sets resourcetype.
+	 *
+	 * @param resourcetype the resourcetype
+	 */
 	public void setResourcetype(Qualifier resourcetype) {
 		this.resourcetype = resourcetype;
 	}
 
+	/**
+	 * Gets coverage.
+	 *
+	 * @return the coverage
+	 */
 	public List<Field<String>> getCoverage() {
 		return coverage;
 	}
 
+	/**
+	 * Sets coverage.
+	 *
+	 * @param coverage the coverage
+	 */
 	public void setCoverage(List<Field<String>> coverage) {
 		this.coverage = coverage;
 	}
 
+	/**
+	 * Gets bestaccessright.
+	 *
+	 * @return the bestaccessright
+	 */
 	public Qualifier getBestaccessright() {
 		return bestaccessright;
 	}
 
+	/**
+	 * Sets bestaccessright.
+	 *
+	 * @param bestaccessright the bestaccessright
+	 */
 	public void setBestaccessright(Qualifier bestaccessright) {
 		this.bestaccessright = bestaccessright;
 	}
 
+	/**
+	 * Gets context.
+	 *
+	 * @return the context
+	 */
 	public List<Context> getContext() {
 		return context;
 	}
 
+	/**
+	 * Sets context.
+	 *
+	 * @param context the context
+	 */
 	public void setContext(List<Context> context) {
 		this.context = context;
 	}
 
+	/**
+	 * Gets external reference.
+	 *
+	 * @return the external reference
+	 */
 	public List<ExternalReference> getExternalReference() {
 		return externalReference;
 	}
 
+	/**
+	 * Sets external reference.
+	 *
+	 * @param externalReference the external reference
+	 */
 	public void setExternalReference(List<ExternalReference> externalReference) {
 		this.externalReference = externalReference;
 	}
 
+	/**
+	 * Gets instance.
+	 *
+	 * @return the instance
+	 */
 	public List<Instance> getInstance() {
 		return instance;
 	}
 
+	/**
+	 * Sets instance.
+	 *
+	 * @param instance the instance
+	 */
 	public void setInstance(List<Instance> instance) {
 		this.instance = instance;
 	}
 
 
-	private static boolean isAnEnrichment(OafEntity e) {
+	/**
+	 * Is an enrichment boolean.
+	 *
+	 * @param e the e
+	 * @return the boolean
+	 */
+	public static boolean isAnEnrichment(OafEntity e) {
 		return e.getDataInfo()!= null &&
 				e.getDataInfo().getProvenanceaction()!= null
 				&& ModelConstants.PROVENANCE_ENRICH.equalsIgnoreCase(e.getDataInfo().getProvenanceaction().getClassid());
 	}
 
+
+	/**
+	 * Normalize pid string.
+	 *
+	 * @param pid the pid
+	 * @return the string
+	 */
+	private static String normalizePid(final StructuredProperty pid) {
+		return String.format("%s::%s", pid.getQualifier().getClassid().toLowerCase(), pid.getValue().toLowerCase());
+	}
+
+	/**
+	 * Valid pid boolean.
+	 *
+	 * @param p the p
+	 * @return the boolean
+	 */
+	private static boolean validPid(final StructuredProperty p) {
+		return p.getValue()!= null && p.getQualifier()!= null && p.getQualifier().getClassid()!=null;
+	}
+
+
+	/**
+	 * This method converts the list of instance enrichments
+	 * into a Map where the key is the normalized identifier
+	 * and the value is the instance itself
+	 *
+	 * @param ri the list of enrichment instances
+	 * @return the result map
+	 */
+	public static Map<String, Instance> toInstanceMap(final List<Instance> ri) {
+		return ri
+				.stream()
+				.filter(i -> i.getPid() != null || i.getAlternateIdentifier() != null)
+				.flatMap(i -> {
+					final List<Tuple2<String, Instance>> result = new ArrayList<>();
+					if (i.getPid() != null)
+						i.getPid().stream().filter(Result::validPid).forEach(p -> result.add(new Tuple2<>(normalizePid(p), i)));
+					if (i.getAlternateIdentifier() != null)
+						i.getAlternateIdentifier().stream().filter(Result::validPid).forEach(p -> result.add(new Tuple2<>(normalizePid(p), i)));
+					return result.stream();
+				}).collect(Collectors.toMap(
+						Tuple2::_1,
+						Tuple2::_2,
+						(a, b) -> a
+				));
+	}
+
+	/**
+	 * This utility method finds the list of enrichment instances
+	 * that match one or more PIDs in the input list
+	 *
+	 * @param pids        the list of PIDs
+	 * @param enrichments the List of enrichment instances having the same pid
+	 * @return the list
+	 */
+	private static List<Instance> findEnrichmentsByPID(final List<StructuredProperty> pids, final Map<String,Instance> enrichments) {
+		if (pids == null || enrichments == null)
+			return null;
+		return pids
+				.stream()
+				.map(Result::normalizePid)
+				.map(enrichments::get)
+				.filter(Objects::nonNull)
+				.collect(Collectors.toList());
+	}
+
+	/**
+	 * This method apply enrichment on a single instance
+	 * The enrichment consists of replacing values on
+	 * single attribute only if in the current instance is missing
+	 * The only repeatable field enriched is measures
+	 *
+	 * @param currentInstance the current instance
+	 * @param enrichment      the enrichment instance
+	 */
+	private static void applyEnrichment(final Instance currentInstance, final Instance enrichment) {
+		if (currentInstance == null || enrichment == null)
+			return;
+
+		//ENRICH accessright
+		if (enrichment.getAccessright()!=null && currentInstance.getAccessright() == null)
+			currentInstance.setAccessright(enrichment.getAccessright());
+
+		//ENRICH license
+		if (enrichment.getLicense()!=null && currentInstance.getLicense() == null)
+			currentInstance.setLicense(enrichment.getLicense());
+
+		//ENRICH instanceType
+		if (enrichment.getInstancetype()!=null && currentInstance.getInstancetype() == null)
+			currentInstance.setInstancetype(enrichment.getInstancetype());
+
+		//ENRICH hostedby
+		if (enrichment.getHostedby()!=null && currentInstance.getHostedby() == null)
+			currentInstance.setHostedby(enrichment.getHostedby());
+
+		//ENRICH distributionlocation
+		if (enrichment.getDistributionlocation()!=null && currentInstance.getDistributionlocation() == null)
+			currentInstance.setDistributionlocation(enrichment.getDistributionlocation());
+
+		//ENRICH collectedfrom
+		if (enrichment.getCollectedfrom()!=null && currentInstance.getCollectedfrom() == null)
+			currentInstance.setCollectedfrom(enrichment.getCollectedfrom());
+
+		//ENRICH dateofacceptance
+		if (enrichment.getDateofacceptance()!=null && currentInstance.getDateofacceptance() == null)
+			currentInstance.setDateofacceptance(enrichment.getDateofacceptance());
+
+		//ENRICH processingchargeamount
+		if (enrichment.getProcessingchargeamount()!=null && currentInstance.getProcessingchargeamount() == null)
+			currentInstance.setProcessingchargeamount(enrichment.getProcessingchargeamount());
+
+		//ENRICH refereed
+		if (enrichment.getRefereed()!=null && currentInstance.getRefereed() == null)
+			currentInstance.setRefereed(enrichment.getRefereed());
+
+		//ENRICH measures
+		if (enrichment.getMeasures()!=null)
+			if (currentInstance.getMeasures() == null)
+				currentInstance.setMeasures(enrichment.getMeasures());
+			else
+				enrichment.getMeasures().forEach(currentInstance.getMeasures()::add);
+
+	}
+
+
+	/**
+	 * This main method apply the enrichment of the instances
+	 *
+	 * @param toEnrichInstances   the instances that could be enriched
+	 * @param enrichmentInstances the enrichment instances
+	 * @return list of instances possibly enriched
+	 */
+	private static List<Instance> enrichInstances(final List<Instance> toEnrichInstances,final List<Instance> enrichmentInstances) {
+		final List<Instance> enrichmentResult = new ArrayList<>();
+
+		if (toEnrichInstances == null) {
+			return enrichmentResult;
+		}
+		if (enrichmentInstances == null) {
+			return enrichmentResult;
+		}
+		Map<String, Instance> ri = toInstanceMap(enrichmentInstances);
+
+		toEnrichInstances.forEach(i -> {
+			final List<Instance> e = findEnrichmentsByPID(i.getPid(), ri);
+			if (e!= null && e.size()> 0) {
+				e.forEach(enr -> applyEnrichment(i, enr));
+			} else {
+				final List<Instance> a = findEnrichmentsByPID(i.getAlternateIdentifier(), ri);
+				if (a!= null && a.size()> 0) {
+					a.forEach(enr -> applyEnrichment(i, enr));
+				}
+			}
+			enrichmentResult.add(i);
+		});
+		return enrichmentResult;
+	}
+
 	@Override
 	public void mergeFrom(OafEntity e) {
 		super.mergeFrom(e);
@@ -254,7 +708,15 @@ public class Result extends OafEntity implements Serializable {
 
 		measures = mergeLists(measures, r.getMeasures());
 
-		instance = mergeLists(instance, r.getInstance());
+		if( !isAnEnrichment(this) && !isAnEnrichment(e))
+			instance = mergeLists(instance, r.getInstance());
+		else {
+			final List<Instance> enrichmentInstances = isAnEnrichment(this) ? instance : r.getInstance();
+			final List<Instance> enrichedInstances= isAnEnrichment(this) ?  r.getInstance(): instance;
+			if (isAnEnrichment(this))
+				setDataInfo(e.getDataInfo());
+			instance = enrichInstances(enrichedInstances,enrichmentInstances);
+		}
 
 		if (r.getBestaccessright() != null
 			&& new AccessRightComparator().compare(r.getBestaccessright(), bestaccessright) < 0)
@@ -334,6 +796,13 @@ public class Result extends OafEntity implements Serializable {
 		externalReference = mergeLists(externalReference, r.getExternalReference());
 	}
 
+	/**
+	 * Longest lists list.
+	 *
+	 * @param a the a
+	 * @param b the b
+	 * @return the list
+	 */
 	private List<Field<String>> longestLists(List<Field<String>> a, List<Field<String>> b) {
 		if (a == null || b == null)
 			return a == null ? b : a;
@@ -355,6 +824,12 @@ public class Result extends OafEntity implements Serializable {
 		return a.size() > b.size() ? a : b;
 	}
 
+	/**
+	 * Gets main title.
+	 *
+	 * @param titles the titles
+	 * @return the main title
+	 */
 	private StructuredProperty getMainTitle(List<StructuredProperty> titles) {
 		// need to check if the list of titles contains more than 1 main title? (in that case, we should chose which
 		// main title select in the list)

src/test/java/eu/dnetlib/dhp/schema/oaf/MergeTest.java

@@ -3,22 +3,42 @@ package eu.dnetlib.dhp.schema.oaf;
 
 import static org.junit.jupiter.api.Assertions.*;
 
+
+import java.io.IOException;
+import java.io.InputStream;
 import java.time.format.DateTimeParseException;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
 
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
+/**
+ * The type Merge test.
+ */
 class MergeTest {
 
+	/**
+	 * The Oaf.
+	 */
 	OafEntity oaf;
 
+	/**
+	 * Sets up.
+	 */
 	@BeforeEach
 	public void setUp() {
 		oaf = new Publication();
 	}
 
+	/**
+	 * Merge lists test.
+	 */
 	@Test
 	@SuppressWarnings("unchecked")
 	void mergeListsTest() {
@@ -35,6 +55,9 @@ class MergeTest {
 		System.out.println("merge result 3 = " + oaf.mergeLists(c, c));
 	}
 
+	/**
+	 * Merge publication collected from test.
+	 */
 	@Test
 	void mergePublicationCollectedFromTest() {
 
@@ -50,6 +73,118 @@ class MergeTest {
 		assertEquals(3, a.getCollectedfrom().size());
 	}
 
+	/**
+	 * Load resource result list.
+	 *
+	 * @param <T>   the type parameter
+	 * @param path  the path
+	 * @param clazz the clazz
+	 * @return the list
+	 * @throws Exception the exception
+	 */
+	private <T extends Result> List<Result> loadResourceResult(final String path, final Class<T> clazz ) throws Exception {
+		final ObjectMapper mapper = new ObjectMapper();
+		final InputStream str = Objects.requireNonNull(getClass().getResourceAsStream(path));
+		// LOAD test publications
+		return IOUtils.readLines(str).stream().map(s -> {
+			try {
+				return mapper.readValue(s, clazz);
+			} catch (IOException e) {
+				return null;
+			}
+		}).filter(Objects::nonNull).collect(Collectors.toList());
+	}
+
+
+	/**
+	 * Apply to any test list result the same pid of the enrichment instance
+	 *
+	 * @param source                      the source
+	 * @param enrichment                  the enrichment
+	 * @param overrideAlternateIdentifier the override alternate identifier
+	 */
+	private void updatePidIntoPublicationInstance(final List<Result> source, final List<Result>enrichment, final boolean overrideAlternateIdentifier) {
+		for(int i = 0 ; i< source.size(); i++) {
+			final Result currentPub = source.get(i);
+			final Result currentEnrichment = enrichment.get(i);
+			final Instance currentInstance = Objects.requireNonNull(currentPub.getInstance()).get(0);
+			if (overrideAlternateIdentifier)
+				currentInstance.setAlternateIdentifier(Objects.requireNonNull(currentEnrichment.getInstance()).get(0).getPid());
+			else
+				currentInstance.setPid(Objects.requireNonNull(currentEnrichment.getInstance()).get(0).getPid());
+		}
+	}
+
+
+	private void applyAndVerifyEnrichment(final List<Result> l1, final List<Result> l2) {
+		// Apply Merge and verify that enrichments works
+		for(int i = 0 ; i< l1.size(); i++) {
+			final Result currentPub = l2.get(i);
+			final Result currentEnrichment = l1.get(i);
+			currentPub.mergeFrom(currentEnrichment);
+			assertEquals(1, currentPub.getInstance().size());
+			final Instance currentInstance = Objects.requireNonNull(currentPub.getInstance()).get(0);
+			assertNotNull(currentInstance.getMeasures());
+			assertNotNull(currentPub.getTitle());
+			assertFalse(Result.isAnEnrichment(currentPub));
+		}
+
+	}
+
+
+
+	/**
+	 * Test enrichment function.
+	 *
+	 * @throws Exception the exception
+	 */
+	@Test
+	void testEnrichment() throws Exception {
+
+
+		// 1 TEST UPDATING PID INSTANCE AND MERGE CURRENT PUBLICATION WITH ENRICHMENT
+		// LOAD test publications
+		List<Result> publications = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/publications.json", Publication.class);
+		// Assert that each publication has only one instance and inside that all the measure field is empty
+		publications.forEach(p -> {
+			assertEquals(1, p.getInstance().size());
+			final Instance currentInstance = Objects.requireNonNull(p.getInstance()).get(0);
+			assertNull(currentInstance.getMeasures());
+		});
+
+		// LOAD test enrichments
+		List<Result> enrichment = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/enrichment.json", Result.class);
+
+		updatePidIntoPublicationInstance(publications, enrichment, false);
+		applyAndVerifyEnrichment(publications, enrichment);
+
+
+		// 2 TEST UPDATING ALTERNATE ID INSTANCE AND MERGE CURRENT PUBLICATION WITH ENRICHMENT
+		publications = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/publications.json", Publication.class);
+		enrichment = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/enrichment.json", Result.class);
+		updatePidIntoPublicationInstance(publications, enrichment, true);
+		applyAndVerifyEnrichment(publications, enrichment);
+
+
+		// 3 TEST UPDATING PID INSTANCE AND MERGE ENRICHMENT WITH CURRENT PUBLICATION
+		publications = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/publications.json", Publication.class);
+		enrichment = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/enrichment.json", Result.class);
+		updatePidIntoPublicationInstance(publications, enrichment, false);
+		applyAndVerifyEnrichment( enrichment, publications);
+
+		// 4 TEST UPDATING ALTERNATE ID INSTANCE AND MERGE ENRICHMENT WITH CURRENT PUBLICATION
+		publications = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/publications.json", Publication.class);
+		enrichment = loadResourceResult("/eu/dnetlib/dhp/schema/oaf/utils/enrichment.json", Result.class);
+		updatePidIntoPublicationInstance(publications, enrichment, true);
+		applyAndVerifyEnrichment( enrichment, publications);
+
+
+	}
+
+
+	/**
+	 * Merge publication date of acceptance test both present.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_bothPresent() {
 
@@ -65,6 +200,9 @@ class MergeTest {
 		assertEquals("2021-06-18", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test both present 1.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_bothPresent_1() {
 
@@ -80,6 +218,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test both present 2.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_bothPresent_2() {
 
@@ -95,6 +236,9 @@ class MergeTest {
 		assertEquals("2021-06-18", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test left missing.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_leftMissing() {
 
@@ -109,6 +253,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test left missing 1.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_leftMissing_1() {
 
@@ -123,6 +270,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test left missing 2.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_leftMissing_2() {
 
@@ -137,6 +287,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test right missing.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_rightMissing() {
 
@@ -151,6 +304,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test right missing 1.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_rightMissing_1() {
 
@@ -165,6 +321,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication date of acceptance test right missing 2.
+	 */
 	@Test
 	void mergePublicationDateOfAcceptanceTest_rightMissing_2() {
 
@@ -179,6 +338,9 @@ class MergeTest {
 		assertEquals("2021-06-19", a.getDateofacceptance().getValue());
 	}
 
+	/**
+	 * Merge publication subject test.
+	 */
 	@Test
 	void mergePublicationSubjectTest() {
 
@@ -194,6 +356,9 @@ class MergeTest {
 		assertEquals(3, a.getSubject().size());
 	}
 
+	/**
+	 * Merge relation test.
+	 */
 	@Test
 	void mergeRelationTest() {
 
@@ -235,6 +400,9 @@ class MergeTest {
 
 	}
 
+	/**
+	 * Merge relation test parse exception.
+	 */
 	@Test
 	void mergeRelationTestParseException() {
 		assertThrows(DateTimeParseException.class, () -> {
@@ -244,6 +412,13 @@ class MergeTest {
 		});
 	}
 
+	/**
+	 * Create rel relation.
+	 *
+	 * @param validated      the validated
+	 * @param validationDate the validation date
+	 * @return the relation
+	 */
 	private Relation createRel(Boolean validated, String validationDate) {
 		Relation rel = new Relation();
 		rel.setSource("1");
@@ -256,6 +431,13 @@ class MergeTest {
 		return rel;
 	}
 
+	/**
+	 * Sets kv.
+	 *
+	 * @param key   the key
+	 * @param value the value
+	 * @return the kv
+	 */
 	private KeyValue setKV(final String key, final String value) {
 
 		KeyValue k = new KeyValue();
@@ -266,6 +448,14 @@ class MergeTest {
 		return k;
 	}
 
+	/**
+	 * Sets sp.
+	 *
+	 * @param value     the value
+	 * @param schema    the schema
+	 * @param classname the classname
+	 * @return the sp
+	 */
 	private StructuredProperty setSP(
 		final String value, final String schema, final String classname) {
 		StructuredProperty s = new StructuredProperty();
@@ -279,24 +469,48 @@ class MergeTest {
 		return s;
 	}
 
+	/**
+	 * Field field.
+	 *
+	 * @param <T>   the type parameter
+	 * @param value the value
+	 * @return the field
+	 */
 	private <T> Field<T> field(T value) {
 		Field<T> f = new Field();
 		f.setValue(value);
 		return f;
 	}
 
+	/**
+	 * Publication publication.
+	 *
+	 * @return the publication
+	 */
 	private Publication publication() {
 		Publication p = new Publication();
 		p.setDataInfo(df("0.9"));
 		return p;
 	}
 
+	/**
+	 * Publication publication.
+	 *
+	 * @param trust the trust
+	 * @return the publication
+	 */
 	private Publication publication(String trust) {
 		Publication p = new Publication();
 		p.setDataInfo(df(trust));
 		return p;
 	}
 
+	/**
+	 * Df data info.
+	 *
+	 * @param trust the trust
+	 * @return the data info
+	 */
 	private DataInfo df(String trust) {
 		DataInfo d = new DataInfo();
 		d.setTrust(trust);

src/test/resources/eu/dnetlib/dhp/schema/oaf/utils/enrichment.json

@@ -0,0 +1,12 @@
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