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dhp-schemas
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implemented comparable interface on few fields

This commit is contained in:
Sandro La Bruzzo 2022-02-21 10:57:47 +01:00
parent ee4a01f711
commit fb05d15ff2
5 changed files with 188 additions and 17 deletions
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26
src/main/java/eu/dnetlib/dhp/schema/sx/scholix/Scholix.java
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@ -1,10 +1,12 @@
package eu.dnetlib.dhp.schema.sx.scholix;
import org.apache.commons.lang3.StringUtils;
import java.io.Serializable;
import java.util.List;
public class Scholix implements Serializable {
public class Scholix implements Serializable, Comparable<Scholix> {
private String publicationDate;
private List<ScholixEntityId> publisher;
@ -74,4 +76,26 @@ public class Scholix implements Serializable {
public void setIdentifier(String identifier) {
this.identifier = identifier;
}
@Override
public int compareTo(Scholix other) {
if (other == null)
return -1;
// Comparing publication date
final int publicationDateCompare =StringUtils.compare(publicationDate, other.getPublicationDate());
if (publicationDateCompare != 0)
return publicationDateCompare;
return 0;
}
}

37
src/main/java/eu/dnetlib/dhp/schema/sx/scholix/ScholixComparator.java Normal file
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@ -0,0 +1,37 @@
package eu.dnetlib.dhp.schema.sx.scholix;
import org.apache.commons.lang3.StringUtils;
import java.text.Normalizer;
import java.util.List;
public class ScholixComparator {
public static String normalizeString(final String input) {
if (input == null)
return null;
return Normalizer.normalize(input, Normalizer.Form.NFD)
.toLowerCase()
.replaceAll("[^a-zA-Z0-9]", "");
}
public static int compareScholixEntityId(final List<ScholixEntityId> first, final List<ScholixEntityId> second) {
return 0;
}
public static int compareString(final String first, final String second) {
if (first == null && second == null)
return 0;
if (first==null )
return 1;
if (second == null)
return -1;
return first.compareTo(second);
}
}

44
src/main/java/eu/dnetlib/dhp/schema/sx/scholix/ScholixEntityId.java
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@ -1,10 +1,17 @@
package eu.dnetlib.dhp.schema.sx.scholix;
import com.google.common.collect.Iterators;
import org.apache.commons.lang3.StringUtils;
import java.io.Serializable;
import java.util.List;
import java.util.Objects;
import java.util.stream.Stream;
public class ScholixEntityId implements Serializable {
import static eu.dnetlib.dhp.schema.sx.scholix.ScholixComparator.normalizeString;
public class ScholixEntityId implements Serializable, Comparable<ScholixEntityId> {
private String name;
private List<ScholixIdentifier> identifiers;
@ -31,4 +38,39 @@ public class ScholixEntityId implements Serializable {
public void setIdentifiers(List<ScholixIdentifier> identifiers) {
this.identifiers = identifiers;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ScholixEntityId that = (ScholixEntityId) o;
return compareTo(that)==0;
}
@Override
public int hashCode() {
return Objects.hash(name, identifiers);
}
@Override
public int compareTo(ScholixEntityId other) {
final int nameComp = StringUtils.compare(normalizeString(name), normalizeString(other.getName()));
if (nameComp != 0)
return nameComp;
if (identifiers == null && other.getIdentifiers() == null)
return 0;
if (identifiers == null)
return 1;
if (other.getIdentifiers() == null)
return -1;
if (identifiers.size()!= other.getIdentifiers().size())
return -1;
Stream<ScholixIdentifier> sortedLeft = identifiers.stream().sorted();
Stream<ScholixIdentifier> sortedRight = other.getIdentifiers().stream().sorted();
boolean equalsStream = Iterators.elementsEqual(sortedLeft.iterator(), sortedRight.iterator());
return equalsStream?0:-1;
}
}

50
src/main/java/eu/dnetlib/dhp/schema/sx/scholix/ScholixIdentifier.java
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@ -1,10 +1,15 @@
package eu.dnetlib.dhp.schema.sx.scholix;
import com.google.common.collect.ComparisonChain;
import org.apache.commons.lang3.StringUtils;
import static eu.dnetlib.dhp.schema.sx.scholix.ScholixComparator.normalizeString;
import java.io.Serializable;
import java.util.Objects;
public class ScholixIdentifier implements Serializable {
public class ScholixIdentifier implements Serializable, Comparable<ScholixIdentifier> {
private String identifier;
private String schema;
private String url;
@ -27,20 +32,6 @@ public class ScholixIdentifier implements Serializable {
this.url = url;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ScholixIdentifier that = (ScholixIdentifier) o;
return identifier.equals(that.identifier) && schema.equals(that.schema);
}
@Override
public int hashCode() {
return Objects.hash(identifier, schema);
}
public String getIdentifier() {
return identifier;
}
@ -56,4 +47,33 @@ public class ScholixIdentifier implements Serializable {
public void setSchema(String schema) {
this.schema = schema;
}
@Override
public int compareTo(ScholixIdentifier o) {
final int idComp = StringUtils.compare(normalizeString(identifier), normalizeString(o.getIdentifier()));
if (idComp !=0)
return idComp;
final int schemaComp = StringUtils.compare(normalizeString(schema), normalizeString(o.getSchema()));
if (schemaComp !=0)
return schemaComp;
final int urlComp = StringUtils.compare(normalizeString(url), normalizeString(o.getUrl()));
return urlComp;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ScholixIdentifier that = (ScholixIdentifier) o;
return compareTo(that) == 0;
}
@Override
public int hashCode() {
return Objects.hash(normalizeString(identifier), normalizeString(schema), normalizeString(url));
}
}

48
src/test/java/eu/dnetlib/dhp/schema/sx/scholix/ScholixCompareTest.java Normal file
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@ -0,0 +1,48 @@
package eu.dnetlib.dhp.schema.sx.scholix;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
public class ScholixCompareTest {
@Test
public void testNormalization() {
final String input = "Tĥïŝ ĩš â fůňķŷ Šťŕĭńġhttps://doi.org/< >10.11646/zootaxa.5099.1.3";
final String expected = "thisisafunkystringhttpsdoiorg1011646zootaxa509913";
final String normalized = ScholixComparator.normalizeString(input);
assertEquals(normalized, expected);
}
@Test
public void testScholixIdentifierComparison() {
final String id = "10.11646/zootaxa.5099.1.3";
final String schema = "DOI";
final String url ="http://dx.dOI.org/10.11646/Zootaxa.5099.1.3";
final ScholixIdentifier left = new ScholixIdentifier();
left.setIdentifier(id.toUpperCase());
left.setSchema(schema.toUpperCase());
left.setUrl(url.toUpperCase());
final ScholixIdentifier right = new ScholixIdentifier();
right.setIdentifier(id.toUpperCase());
right.setSchema(schema.toUpperCase());
right.setUrl(url.toLowerCase());
assertEquals(0,left.compareTo(right));
assertEquals(left, right);
assertEquals(left.hashCode(), right.hashCode());
left.setIdentifier(null);
assertEquals(-1, left.compareTo(right));
}
}