implemented default merge procedure applied to result.instance

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/CleaningFunctions.java

@@ -1,14 +1,15 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
-import org.apache.commons.lang3.StringUtils;
-
 import java.util.HashSet;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
 
+import org.apache.commons.lang3.StringUtils;
+
+import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+
 public class CleaningFunctions {
 
 	public static final String DOI_PREFIX_REGEX = "(^10\\.|\\/10\\.)";
@@ -21,7 +22,8 @@ public class CleaningFunctions {
 		PID_BLACKLIST.add("na");
 	}
 
-	public CleaningFunctions() {}
+	public CleaningFunctions() {
+	}
 
 	/**
 	 * Utility method that filter PID values on a per-type basis.
@@ -47,7 +49,8 @@ public class CleaningFunctions {
 	 * @return the PID containing the normalised value.
 	 */
 	public static StructuredProperty normalizePidValue(StructuredProperty pid) {
-		pid.setValue(
+		pid
+			.setValue(
 				normalizePidValue(
 					pid.getQualifier().getClassid(),
 					pid.getValue()));

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/IdentifierFactory.java

@@ -1,12 +1,8 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import com.google.common.collect.HashBiMap;
-import com.google.common.collect.Maps;
-import eu.dnetlib.dhp.schema.common.ModelSupport;
-import eu.dnetlib.dhp.schema.oaf.*;
-import org.apache.commons.codec.binary.Hex;
-import org.apache.commons.lang3.StringUtils;
+import static com.google.common.base.Preconditions.checkArgument;
+import static eu.dnetlib.dhp.schema.common.ModelConstants.*;
 
 import java.io.Serializable;
 import java.nio.charset.StandardCharsets;
@@ -16,8 +12,14 @@ import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import static com.google.common.base.Preconditions.checkArgument;
-import static eu.dnetlib.dhp.schema.common.ModelConstants.*;
+import org.apache.commons.codec.binary.Hex;
+import org.apache.commons.lang3.StringUtils;
+
+import com.google.common.collect.HashBiMap;
+import com.google.common.collect.Maps;
+
+import eu.dnetlib.dhp.schema.common.ModelSupport;
+import eu.dnetlib.dhp.schema.oaf.*;
 
 /**
  * Factory class for OpenAIRE identifiers in the Graph
@@ -87,7 +89,8 @@ public class IdentifierFactory implements Serializable {
 	}
 
 	public static Set<String> delegatedAuthorityDatasourceIds() {
-		return DELEGATED_PID_AUTHORITY.values()
+		return DELEGATED_PID_AUTHORITY
+			.values()
 			.stream()
 			.flatMap(m -> m.keySet().stream())
 			.collect(Collectors.toCollection(HashSet::new));
@@ -210,7 +213,6 @@ public class IdentifierFactory implements Serializable {
 			.orElse(Stream.empty());
 	}
 
-
 	private static boolean shouldFilterPidByCriteria(KeyValue collectedFrom, StructuredProperty p, boolean mapHandles) {
 		final PidType pType = PidType.tryValueOf(p.getQualifier().getClassid());
 
@@ -220,13 +222,15 @@ public class IdentifierFactory implements Serializable {
 
 		boolean isEnrich = Optional
 			.ofNullable(ENRICHMENT_PROVIDER.get(pType))
-				.map(enrich -> enrich.containsKey(collectedFrom.getKey())
+			.map(
+				enrich -> enrich.containsKey(collectedFrom.getKey())
 					|| enrich.containsValue(collectedFrom.getValue()))
 			.orElse(false);
 
 		boolean isAuthority = Optional
 			.ofNullable(PID_AUTHORITY.get(pType))
-				.map(authorities -> authorities.containsKey(collectedFrom.getKey())
+			.map(
+				authorities -> authorities.containsKey(collectedFrom.getKey())
 					|| authorities.containsValue(collectedFrom.getValue()))
 			.orElse(false);
 

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtils.java

@@ -1,22 +1,24 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import static org.apache.commons.lang3.ObjectUtils.firstNonNull;
 import static com.google.common.base.Preconditions.checkArgument;
+import static org.apache.commons.lang3.ObjectUtils.firstNonNull;
 
 import java.text.ParseException;
+import java.time.ZoneId;
 import java.util.*;
 import java.util.function.BinaryOperator;
 import java.util.function.Function;
-import java.util.function.Supplier;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import com.google.common.base.Joiner;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.Pair;
 
+import com.github.sisyphsu.dateparser.DateParserUtils;
+import com.google.common.base.Joiner;
+
 import eu.dnetlib.dhp.schema.common.AccessRightComparator;
 import eu.dnetlib.dhp.schema.common.ModelConstants;
 import eu.dnetlib.dhp.schema.common.ModelSupport;
@@ -173,7 +175,8 @@ public class MergeUtils {
 		return a || b;
 	}
 
-	private static <T, K> List<T> mergeLists(final List<T> left, final List<T> right, int trust, Function<T, K> keyExtractor, BinaryOperator<T> merger) {
+	private static <T, K> List<T> mergeLists(final List<T> left, final List<T> right, int trust,
+		Function<T, K> keyExtractor, BinaryOperator<T> merger) {
 		if (left == null) {
 			return right;
 		} else if (right == null) {
@@ -402,11 +405,12 @@ public class MergeUtils {
 		// instance enrichment or union
 		// review instance equals => add pid to comparision
 		if (!isAnEnrichment(merge) && !isAnEnrichment(enrich))
-			merge.setInstance(
-					mergeLists(merge.getInstance(), enrich.getInstance(), trust,
+			merge
+				.setInstance(
+					mergeLists(
+						merge.getInstance(), enrich.getInstance(), trust,
 						MergeUtils::instanceKeyExtractor,
-					MergeUtils::instanceMerger
-			));
+						MergeUtils::instanceMerger));
 		else {
 			final List<Instance> enrichmentInstances = isAnEnrichment(merge) ? merge.getInstance()
 				: enrich.getInstance();
@@ -428,12 +432,103 @@ public class MergeUtils {
 	}
 
 	private static String instanceKeyExtractor(Instance i) {
-        return String.join("::",
+		return String
+			.join(
+				"::",
 				kvKeyExtractor(i.getHostedby()),
+				kvKeyExtractor(i.getCollectedfrom()),
 				qualifierKeyExtractor(i.getAccessright()),
 				qualifierKeyExtractor(i.getInstancetype()),
 				Optional.ofNullable(i.getUrl()).map(u -> String.join("::", u)).orElse(null),
-                Optional.ofNullable(i.getPid()).map(pp -> pp.stream().map(MergeUtils::spKeyExtractor).collect(Collectors.joining("::"))).orElse(null));
+				Optional
+					.ofNullable(i.getPid())
+					.map(pp -> pp.stream().map(MergeUtils::spKeyExtractor).collect(Collectors.joining("::")))
+					.orElse(null));
+	}
+
+	private static Instance instanceMerger(Instance i1, Instance i2) {
+		Instance i = new Instance();
+		i.setHostedby(i1.getHostedby());
+		i.setCollectedfrom(i1.getCollectedfrom());
+		i.setAccessright(i1.getAccessright());
+		i.setInstancetype(i1.getInstancetype());
+		i.setPid(mergeLists(i1.getPid(), i2.getPid(), 0, MergeUtils::spKeyExtractor, (sp1, sp2) -> sp1));
+		i
+			.setAlternateIdentifier(
+				mergeLists(
+					i1.getAlternateIdentifier(), i2.getAlternateIdentifier(), 0, MergeUtils::spKeyExtractor,
+					(sp1, sp2) -> sp1));
+
+		i
+			.setRefereed(
+				Collections
+					.min(
+						Stream.of(i1.getRefereed(), i2.getRefereed()).collect(Collectors.toList()),
+						new RefereedComparator()));
+		i
+			.setInstanceTypeMapping(
+				mergeLists(
+					i1.getInstanceTypeMapping(), i2.getInstanceTypeMapping(), 0,
+					MergeUtils::instanceTypeMappingKeyExtractor, (itm1, itm2) -> itm1));
+		i.setFulltext(selectFulltext(i1.getFulltext(), i2.getFulltext()));
+		i.setDateofacceptance(selectOldestDate(i1.getDateofacceptance(), i2.getDateofacceptance()));
+		i.setLicense(firstNonNull(i1.getLicense(), i2.getLicense()));
+		i.setProcessingchargeamount(firstNonNull(i1.getProcessingchargeamount(), i2.getProcessingchargeamount()));
+		i.setProcessingchargecurrency(firstNonNull(i1.getProcessingchargecurrency(), i2.getProcessingchargecurrency()));
+		i
+			.setMeasures(
+				mergeLists(i1.getMeasures(), i2.getMeasures(), 0, MergeUtils::measureKeyExtractor, (m1, m2) -> m1));
+
+		i.setUrl(unionDistinctListOfString(i1.getUrl(), i2.getUrl()));
+
+		return i;
+	}
+
+	private static String measureKeyExtractor(Measure m) {
+		return String
+			.join(
+				"::",
+				m.getId(),
+				m
+					.getUnit()
+					.stream()
+					.map(KeyValue::getKey)
+					.collect(Collectors.joining("::")));
+	}
+
+	private static Field<String> selectOldestDate(Field<String> d1, Field<String> d2) {
+		return Stream
+			.of(d1, d2)
+			.filter(Objects::nonNull)
+			.min(
+				Comparator
+					.comparing(
+						f -> DateParserUtils
+							.parseDate(f.getValue())
+							.toInstant()
+							.atZone(ZoneId.systemDefault())
+							.toLocalDate()))
+			.orElse(d1);
+	}
+
+	private static String selectFulltext(String ft1, String ft2) {
+		if (StringUtils.endsWith(ft1, "pdf")) {
+			return ft1;
+		}
+		if (StringUtils.endsWith(ft2, "pdf")) {
+			return ft2;
+		}
+		return firstNonNull(ft1, ft2);
+	}
+
+	private static String instanceTypeMappingKeyExtractor(InstanceTypeMapping itm) {
+		return String
+			.join(
+				"::",
+				itm.getOriginalType(),
+				itm.getTypeCode(),
+				itm.getTypeLabel(),
+				itm.getVocabularyName());
 	}
 
 	private static String kvKeyExtractor(KeyValue kv) {
@@ -444,22 +539,17 @@ public class MergeUtils {
 		return Optional.ofNullable(q).map(Qualifier::getClassid).orElse(null);
 	}
 
-	private static <T> T FieldKeyExtractor(Field<T> f) {
+	private static <T> T fieldKeyExtractor(Field<T> f) {
 		return Optional.ofNullable(f).map(Field::getValue).orElse(null);
 	}
 
 	private static String spKeyExtractor(StructuredProperty sp) {
-		return Optional.ofNullable(sp).map(s -> Joiner.on("::").join(s, qualifierKeyExtractor(s.getQualifier()))).orElse(null);
+		return Optional
+			.ofNullable(sp)
+			.map(s -> Joiner.on("::").join(s, qualifierKeyExtractor(s.getQualifier())))
+			.orElse(null);
 	}
 
-	private static Instance instanceMerger(Instance i1, Instance i2) {
-
-		// TODO implement me!
-
-		return i1;
-	}
-
-
 	private static <T extends OtherResearchProduct> T mergeORP(T original, T enrich) {
 		int trust = compareTrust(original, enrich);
 		final T merge = mergeResult(original, enrich);

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ModelHardLimits.java

@@ -3,7 +3,8 @@ package eu.dnetlib.dhp.schema.oaf.utils;
 
 public class ModelHardLimits {
 
-	private ModelHardLimits() {}
+	private ModelHardLimits() {
+	}
 
 	public static final String LAYOUT = "index";
 	public static final String INTERPRETATION = "openaire";

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/OrganizationPidComparator.java

@@ -1,10 +1,10 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
-
 import java.util.Comparator;
 
+import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+
 public class OrganizationPidComparator implements Comparator<StructuredProperty> {
 
 	@Override

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidBlacklistProvider.java

@@ -1,14 +1,15 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.apache.commons.io.IOUtils;
-
 import java.io.IOException;
 import java.util.HashSet;
 import java.util.Optional;
 import java.util.Set;
 
+import org.apache.commons.io.IOUtils;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
 public class PidBlacklistProvider {
 
 	private static final PidBlacklist blacklist;
@@ -33,6 +34,7 @@ public class PidBlacklistProvider {
 			.orElse(new HashSet<>());
 	}
 
-	private PidBlacklistProvider() {}
+	private PidBlacklistProvider() {
+	}
 
 }

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidComparator.java

@@ -1,14 +1,14 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
+import java.util.Comparator;
+
 import eu.dnetlib.dhp.schema.common.ModelSupport;
 import eu.dnetlib.dhp.schema.oaf.OafEntity;
 import eu.dnetlib.dhp.schema.oaf.Organization;
 import eu.dnetlib.dhp.schema.oaf.Result;
 import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
 
-import java.util.Comparator;
-
 public class PidComparator<T extends OafEntity> implements Comparator<StructuredProperty> {
 
 	private final T entity;

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/PidValueComparator.java

@@ -1,11 +1,11 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
-
 import java.util.Comparator;
 import java.util.Optional;
 
+import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+
 public class PidValueComparator implements Comparator<StructuredProperty> {
 
 	@Override

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/RefereedComparator.java

@@ -0,0 +1,39 @@
+
+package eu.dnetlib.dhp.schema.oaf.utils;
+
+import java.util.Comparator;
+
+import eu.dnetlib.dhp.schema.oaf.Qualifier;
+import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+
+/**
+ * Comparator for sorting the values from the dnet:review_levels vocabulary, implements the following ordering
+ *
+ * peerReviewed (0001) > nonPeerReviewed (0002) > UNKNOWN (0000)
+ */
+public class RefereedComparator implements Comparator<Qualifier> {
+
+	@Override
+	public int compare(Qualifier left, Qualifier right) {
+
+		String lClass = left.getClassid();
+		String rClass = right.getClassid();
+
+		if ("0001".equals(lClass))
+			return -1;
+		if ("0001".equals(rClass))
+			return 1;
+
+		if ("0002".equals(lClass))
+			return -1;
+		if ("0002".equals(rClass))
+			return 1;
+
+		if ("0000".equals(lClass))
+			return -1;
+		if ("0000".equals(rClass))
+			return 1;
+
+		return 0;
+	}
+}

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ResultPidComparator.java

@@ -1,10 +1,10 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
-
 import java.util.Comparator;
 
+import eu.dnetlib.dhp.schema.oaf.StructuredProperty;
+
 public class ResultPidComparator implements Comparator<StructuredProperty> {
 
 	@Override

dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/ResultTypeComparator.java

@@ -1,16 +1,16 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import eu.dnetlib.dhp.schema.common.ModelConstants;
-import eu.dnetlib.dhp.schema.oaf.KeyValue;
-import eu.dnetlib.dhp.schema.oaf.Result;
+import static eu.dnetlib.dhp.schema.common.ModelConstants.CROSSREF_ID;
 
 import java.util.Comparator;
 import java.util.HashSet;
 import java.util.Optional;
 import java.util.stream.Collectors;
 
-import static eu.dnetlib.dhp.schema.common.ModelConstants.CROSSREF_ID;
+import eu.dnetlib.dhp.schema.common.ModelConstants;
+import eu.dnetlib.dhp.schema.oaf.KeyValue;
+import eu.dnetlib.dhp.schema.oaf.Result;
 
 public class ResultTypeComparator implements Comparator<Result> {
 

dhp-common/src/test/java/eu/dnetlib/dhp/schema/oaf/utils/BlackListProviderTest.java

@@ -1,11 +1,11 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
+import java.util.Set;
+
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
-import java.util.Set;
-
 class BlackListProviderTest {
 
 	@Test

dhp-common/src/test/java/eu/dnetlib/dhp/schema/oaf/utils/IdentifierFactoryTest.java

@@ -1,16 +1,18 @@
 
 package eu.dnetlib.dhp.schema.oaf.utils;
 
-import com.fasterxml.jackson.databind.DeserializationFeature;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import eu.dnetlib.dhp.schema.oaf.Publication;
-import org.apache.commons.io.IOUtils;
-import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import java.io.IOException;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
+import org.apache.commons.io.IOUtils;
+import org.junit.jupiter.api.Test;
+
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import eu.dnetlib.dhp.schema.oaf.Publication;
 
 class IdentifierFactoryTest {
 

dhp-common/src/test/java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtilsTest.java

@@ -10,24 +10,23 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.stream.Collectors;
 
-import com.google.common.collect.Lists;
-import eu.dnetlib.dhp.schema.oaf.*;
 import org.apache.commons.beanutils.BeanUtils;
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.collect.Lists;
 
 import eu.dnetlib.dhp.schema.common.ModelConstants;
 import eu.dnetlib.dhp.schema.common.ModelSupport;
+import eu.dnetlib.dhp.schema.oaf.*;
 
 public class MergeUtilsTest {
 
 	private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper()
 		.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 
-
 	@Test
 	void testMergePubs_new() throws IOException {
 		Publication pt = read("publication_test.json", Publication.class);