moved scholix API data model from dnet-applications to dhp-schemas

pom.xml

@@ -349,6 +349,24 @@
             <groupId>me.xuender</groupId>
             <artifactId>unidecode</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.swagger</groupId>
+            <artifactId>swagger-annotations</artifactId>
+            <version>1.5.20</version>
+        </dependency>
+        <dependency>
+            <groupId>io.swagger.core.v3</groupId>
+            <artifactId>swagger-annotations</artifactId>
+            <version>2.1.12</version>
+        </dependency>
+
+
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>2.0.1.Final</version>
+        </dependency>
+
 
         <dependency>
             <groupId>org.junit.jupiter</groupId>

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/LinkPublisher.java

@@ -0,0 +1,97 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+import java.util.Objects;
+
+public class LinkPublisher {
+    @NotBlank
+    @JsonProperty("name")
+    private String name = null;
+
+    @NotBlank
+    @JsonProperty("totalRelationships")
+    private Integer totalRelationships = null;
+
+    public LinkPublisher name(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Get name
+     * @return name
+     **/
+    @Schema(description = "The Publisher Name")
+
+    @Size(max=300)   public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public LinkPublisher totalRelationships(Integer totalRelationships) {
+        this.totalRelationships = totalRelationships;
+        return this;
+    }
+
+    /**
+     * Get totalRelationships
+     * @return totalRelationships
+     **/
+    @Schema(description = "Total number of relationships that the publisher provides")
+
+    public Integer getTotalRelationships() {
+        return totalRelationships;
+    }
+
+    public void setTotalRelationships(Integer totalRelationships) {
+        this.totalRelationships = totalRelationships;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        LinkPublisher linkPublisher = (LinkPublisher) o;
+        return Objects.equals(this.name, linkPublisher.name) &&
+                Objects.equals(this.totalRelationships, linkPublisher.totalRelationships);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, totalRelationships);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("class LinkPublisher {\n");
+
+        sb.append("    name: ").append(toIndentedString(name)).append("\n");
+        sb.append("    totalRelationships: ").append(toIndentedString(totalRelationships)).append("\n");
+        sb.append("}");
+        return sb.toString();
+    }
+
+    /**
+     * Convert the given object to string with each line indented by 4 spaces
+     * (except the first line).
+     */
+    private String toIndentedString(Object o) {
+        if (o == null) {
+            return "null";
+        }
+        return o.toString().replace("\n", "\n    ");
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/ScholixCreator.java

@@ -0,0 +1,69 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixEntityId;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class ScholixCreator {
+
+    @JsonProperty("name")
+    private String name = null;
+
+    @JsonProperty("identifier")
+    private List<ScholixIdentifier> identifier = null;
+
+    public ScholixCreator name(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Get name
+     * @return name
+     **/
+    @Schema(required = true, description = "The name of the Object Creator")
+    public String getName() {
+        return name;
+    }
+
+    public ScholixCreator setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+
+    /**
+     * Get identifier
+     * @return identifier
+     **/
+    @Schema(description = "A unique string that identifies the Object Creator")
+    public List<ScholixIdentifier> getIdentifier() {
+        return identifier;
+    }
+
+    public ScholixCreator setIdentifier(List<ScholixIdentifier> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+    public static ScholixCreator fromScholixEntityId(final ScholixEntityId provider) {
+        if (provider == null)
+            return null;
+        ScholixCreator instance = new ScholixCreator().setName(provider.getName());
+
+
+        if (provider.getIdentifiers()!= null && provider.getIdentifiers().size()>0)
+            instance.setIdentifier(provider.getIdentifiers()
+                    .stream()
+                    .map(i ->new ScholixIdentifier()
+                            .setIdentifier(i.getIdentifier())
+                            .setSchema(i.getSchema()))
+                    .collect(Collectors.toList()));
+        return instance;
+
+
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/ScholixIdentifier.java

@@ -0,0 +1,71 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import java.util.Objects;
+
+public class ScholixIdentifier {
+
+    @JsonProperty("identifier")
+    private String identifier = null;
+
+    @JsonProperty("schema")
+    private String schema = null;
+
+
+
+    public ScholixIdentifier Identifier(String ID) {
+        this.identifier = ID;
+        return this;
+    }
+
+    /**
+     * Get ID
+     * @return ID
+     **/
+    @Schema(description = "The value of the Identifier")
+    public String getIdentifier() {
+        return identifier;
+    }
+
+    public ScholixIdentifier setIdentifier(String identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+    public ScholixIdentifier Schema(String idScheme) {
+        this.schema = idScheme;
+        return this;
+    }
+
+    /**
+     * Get the Schema
+     * @return Schema
+     **/
+    @Schema(description = "The Schema URL of the identifier type")
+
+    public String getSchema() {
+        return schema;
+    }
+
+    public ScholixIdentifier setSchema(String schema) {
+        this.schema = schema;
+        return this;
+    }
+
+    public static ScholixIdentifier fromScholixIdentifier(eu.dnetlib.dhp.schema.sx.scholix.ScholixIdentifier input) {
+        if (input == null)
+            return null;
+
+        final ScholixIdentifier result = new ScholixIdentifier();
+        result.setSchema(input.getSchema());
+        result.setIdentifier(input.getIdentifier());
+        return result;
+
+
+
+    }
+
+
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/ScholixItem.java

@@ -0,0 +1,161 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixResource;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class ScholixItem {
+
+    @JsonProperty("identifiers")
+    private List<ScholixIdentifier> identifiers;
+
+    @JsonProperty("objectType")
+    private String objectType;
+
+    @JsonProperty("objectSubType")
+    private String objectSubType;
+
+    @JsonProperty("title")
+    private String title;
+
+    @JsonProperty("creator")
+    private List<ScholixCreator> creator;
+
+    @JsonProperty("publicationDate")
+    private String publicationDate;
+
+    @JsonProperty("publisher")
+    private List<ScholixProvider> publisher;
+
+    @Schema(description = "The list of identifiers")
+    public List<ScholixIdentifier> getIdentifiers() {
+        return identifiers;
+    }
+
+    public ScholixItem setIdentifiers(List<ScholixIdentifier> identifiers) {
+        this.identifiers = identifiers;
+        return this;
+    }
+
+    public ScholixItem objectType(String objectType) {
+        this.objectType = objectType;
+        return  this;
+    }
+
+    @Schema(description = "Describes the nature of the object (its intended usage)")
+    public String getObjectType() {
+        return objectType;
+    }
+
+    public void setObjectType(String objectType) {
+        this.objectType = objectType;
+    }
+
+    public ScholixItem objectSubType(String objectSubType) {
+        this.objectSubType = objectSubType;
+        return this;
+    }
+
+    @Schema(description = "The sub-type of  Object")
+    public String getObjectSubType() {
+        return objectSubType;
+    }
+
+    public void setObjectSubType(String objectSubType) {
+        this.objectSubType = objectSubType;
+    }
+
+    public ScholixItem title(String title) {
+        this.title = title;
+        return this;
+    }
+
+    @Schema(description = "The name of the object")
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public ScholixItem creator(List<ScholixCreator> creator) {
+        this.creator = creator;
+        return this;
+    }
+
+    public ScholixItem addCreatorInstance(ScholixCreator creatorInstance) {
+        if(this.creator == null)
+            this.creator = new ArrayList<>();
+        this.creator.add(creatorInstance);
+        return this;
+    }
+
+    @Schema(description = "Party responsible for the creation of the object")
+    public List<ScholixCreator> getCreator() {
+        return creator;
+    }
+
+    public void setCreator(List<ScholixCreator> creator) {
+        this.creator = creator;
+    }
+
+    @Schema(description = "The date the object was formally issued, published or distributed")
+    public String getPublicationDate() {
+        return publicationDate;
+    }
+
+    public void setPublicationDate(String publicationDate) {
+        this.publicationDate = publicationDate;
+    }
+
+    @Schema(description = "The list name of the publisher of the object")
+    public List<ScholixProvider> getPublisher() {
+        return publisher;
+    }
+
+    public ScholixItem setPublisher(List<ScholixProvider> publisher) {
+        this.publisher = publisher;
+        return this;
+    }
+
+    public static ScholixItem fromScholixResource(final ScholixResource input) {
+        if (input == null)
+            return null;
+
+
+        final  ScholixItem result = new ScholixItem();
+
+        if (input.getIdentifier()!= null)
+        result.setIdentifiers(
+                input.getIdentifier().stream()
+                        .map(ScholixIdentifier::fromScholixIdentifier)
+                        .collect(Collectors.toList())
+        );
+
+        result.setTitle(input.getTitle());
+        result.setObjectType(input.getObjectType());
+        result.setObjectSubType(input.getObjectSubType());
+        result.setPublicationDate(input.getPublicationDate());
+        if(input.getPublisher()!= null)
+            result.setPublisher(input.getPublisher().stream()
+                    .map(ScholixProvider::fromScholixEntityId)
+                    .collect(Collectors.toList())
+            );
+
+
+        if (input.getCreator()!= null)
+            result.setCreator(input.getCreator().stream()
+                    .map(ScholixCreator::fromScholixEntityId)
+                    .collect(Collectors.toList())
+            );
+
+        return result;
+
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/ScholixProvider.java

@@ -0,0 +1,129 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixEntityId;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.Valid;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class ScholixProvider {
+
+    public static ScholixProvider fromScholixEntityId(final ScholixEntityId provider) {
+        if (provider == null)
+            return null;
+        ScholixProvider instance = new ScholixProvider().setName(provider.getName());
+
+
+        if (provider.getIdentifiers()!= null && provider.getIdentifiers().size()>0)
+            instance.setIdentifier(provider.getIdentifiers()
+                    .stream()
+                    .map(i ->new ScholixIdentifier()
+                            .setIdentifier(i.getIdentifier())
+                            .setSchema(i.getSchema()))
+                    .collect(Collectors.toList()));
+        return instance;
+
+
+    }
+
+
+    @JsonProperty("name")
+    private String name = null;
+
+    @JsonProperty("identifier")
+    @Valid
+    private List<ScholixIdentifier> identifier = null;
+
+    public ScholixProvider name(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Get the provider name
+     * @return name
+     **/
+    @Schema(description = "The provider name")
+
+    public String getName() {
+        return name;
+    }
+
+    public ScholixProvider setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public ScholixProvider identifier(List<ScholixIdentifier> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+    public ScholixProvider addIdentifierItem(ScholixIdentifier identifierItem) {
+        if (this.identifier == null) {
+            this.identifier = new ArrayList<>();
+        }
+        this.identifier.add(identifierItem);
+        return this;
+    }
+
+    /**
+     * Get identifier
+     * @return identifier
+     **/
+    @Schema(description = "the identifiers of the provider")
+    @Valid
+    public List<ScholixIdentifier> getIdentifier() {
+        return identifier;
+    }
+
+    public ScholixProvider setIdentifier(List<ScholixIdentifier> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        ScholixProvider scholixProviderType = (ScholixProvider) o;
+        return Objects.equals(this.name, scholixProviderType.name) &&
+                Objects.equals(this.identifier, scholixProviderType.identifier);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, identifier);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("class ScholixProviderType {\n");
+
+        sb.append("    name: ").append(toIndentedString(name)).append("\n");
+        sb.append("    identifiers: ").append(toIndentedString(identifier)).append("\n");
+        sb.append("}");
+        return sb.toString();
+    }
+
+    /**
+     * Convert the given object to string with each line indented by 4 spaces
+     * (except the first line).
+     */
+    private String toIndentedString(Object o) {
+        if (o == null) {
+            return "null";
+        }
+        return o.toString().replace("\n", "\n    ");
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/ScholixRelationship.java

@@ -0,0 +1,134 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.util.Objects;
+
+import static eu.dnetlib.dhp.schema.sx.api.model.v2.RelationshipType.relationMapping;
+
+public class ScholixRelationship {
+
+    @JsonProperty("name")
+    private String name = null;
+
+    @JsonProperty("schema")
+    private String schema = null;
+
+    @NotBlank
+    @JsonProperty("inverseRelationship")
+    private String inverseRelationship = null;
+
+    public ScholixRelationship name(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Get name
+     * @return name
+     **/
+    @Schema(required = true, description = "The relationship type chosen from a Scholix controlled vocabulary")
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public ScholixRelationship schema(String schema) {
+        this.schema = schema;
+        return this;
+    }
+
+    /**
+     * Get The name of the schema or controlled list from which Relationship Sub-type is sourced
+     * @return subType
+     **/
+    @Schema(description = "The name of the schema or controlled list from which Relationship Sub-type is sourced")
+    public String getSchema() {
+        return schema;
+    }
+
+    public void setSchema(String schema) {
+        this.schema = schema;
+    }
+
+    public ScholixRelationship inverseRelationship(String inverseRelationship) {
+        this.inverseRelationship = inverseRelationship;
+        return this;
+    }
+
+    /**
+     * Get inverseRelationship
+     * @return inverseRelationship
+     **/
+    @Schema(description = "The value of the inverse relation")
+
+    public String getInverseRelationship() {
+        return inverseRelationship;
+    }
+
+    public void setInverseRelationship(String inverseRelationship) {
+        this.inverseRelationship = inverseRelationship;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        ScholixRelationship relationshipType = (ScholixRelationship) o;
+        return Objects.equals(this.name, relationshipType.name) &&
+                Objects.equals(this.schema, relationshipType.schema) &&
+                Objects.equals(this.inverseRelationship, relationshipType.inverseRelationship);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, schema, inverseRelationship);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("class RelationshipType {\n");
+
+        sb.append("    name: ").append(toIndentedString(name)).append("\n");
+        sb.append("    subType: ").append(toIndentedString(schema)).append("\n");
+        sb.append("    subTypeSchema: ").append(toIndentedString(inverseRelationship)).append("\n");
+        sb.append("}");
+        return sb.toString();
+    }
+
+    /**
+     * Convert the given object to string with each line indented by 4 spaces
+     * (except the first line).
+     */
+    private String toIndentedString(Object o) {
+        if (o == null) {
+            return "null";
+        }
+        return o.toString().replace("\n", "\n    ");
+    }
+
+    public static ScholixRelationship fromScholixIndexRelationship(eu.dnetlib.dhp.schema.sx.scholix.ScholixRelationship inputRel) {
+        if(inputRel==null)
+            return null;
+
+        ScholixRelationship result = new ScholixRelationship();
+
+        result.setName(relationMapping.getOrDefault(inputRel.getName(), "IsRelatedTo"));
+        result.setInverseRelationship(relationMapping.getOrDefault(inputRel.getInverse(), "IsRelatedTo"));
+        result.setSchema(inputRel.getSchema());
+        return result;
+
+    }
+
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v1/ScholixV1.java

@@ -0,0 +1,184 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v1;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.Scholix;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class ScholixV1 implements Serializable {
+
+    @JsonProperty("linkProvider")
+    private List<ScholixProvider> linkProvider;
+
+    @JsonProperty("publicationDate")
+    private String publicationDate;
+
+    @NotBlank
+    @JsonProperty("relationship")
+    private ScholixRelationship relationship;
+
+    @NotBlank
+    @JsonProperty("source")
+    private ScholixItem source;
+
+    @NotBlank
+    @JsonProperty("target")
+    private ScholixItem target;
+
+
+
+    public ScholixV1 linkProvider (final List<ScholixProvider> linkProvider ) {
+        this.linkProvider = linkProvider;
+        return this;
+    }
+
+    @Schema(description = "An entity responsible for making this record available online")
+    public List<ScholixProvider> getLinkProvider() {
+        return linkProvider;
+    }
+
+    public ScholixV1 addLinkProviderItem(ScholixProvider linkProviderItem) {
+        if (this.linkProvider == null) {
+            this.linkProvider = new ArrayList<>();
+        }
+        this.linkProvider.add(linkProviderItem);
+        return this;
+    }
+
+    public void setLinkProvider(List<ScholixProvider> linkProvider) {
+        this.linkProvider = linkProvider;
+    }
+
+    @Schema(description = "date of formal issuance (e.g., publication) of the resource; generally different from source object and target object publication dates")
+    public String getPublicationDate() {
+        return publicationDate;
+    }
+
+    public ScholixV1 publicationDate(String publicationDate) {
+        this.publicationDate = publicationDate;
+        return this;
+    }
+
+    public void setPublicationDate(String publicationDate) {
+        this.publicationDate = publicationDate;
+    }
+
+    @Schema(description = "Semantics of the relationship from source to target")
+    public ScholixRelationship getRelationship() {
+        return relationship;
+    }
+
+    public ScholixV1 relationship(ScholixRelationship relationship) {
+        this.relationship = relationship;
+        return this;
+    }
+
+    public void setRelationship(ScholixRelationship relationship) {
+        this.relationship = relationship;
+    }
+
+    @Schema(description = "Root element relative to all properties describing the link’s source object.")
+    public ScholixItem getSource() {
+        return source;
+    }
+
+
+    public ScholixV1 source(ScholixItem source) {
+        this.source = source;
+        return this;
+    }
+    public void setSource(ScholixItem source) {
+        this.source = source;
+    }
+
+    @Schema(description = "Root element relative to all properties describing the link’s target object.")
+    public ScholixItem getTarget() {
+        return target;
+    }
+
+    public ScholixV1 target(ScholixItem target) {
+        this.target = target;
+        return this;
+    }
+
+    public void setTarget(ScholixItem target) {
+        this.target = target;
+    }
+
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        ScholixV1 scholixV1 = (ScholixV1) o;
+        return Objects.equals(this.linkProvider, scholixV1.getLinkProvider()) &&
+                Objects.equals(this.publicationDate, scholixV1.getPublicationDate()) &&
+                Objects.equals(this.relationship, scholixV1.getRelationship()) &&
+                Objects.equals(this.source, scholixV1.getSource()) &&
+                Objects.equals(this.target, scholixV1.getTarget());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(linkProvider, publicationDate, relationship, source, target);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("class ScholixV1 {\n");
+
+        sb.append("    linkProvider: ").append(toIndentedString(linkProvider)).append("\n");
+        sb.append("    publicationDate: ").append(toIndentedString(publicationDate)).append("\n");
+        sb.append("    relationship: ").append(toIndentedString(relationship)).append("\n");
+        sb.append("    source: ").append(toIndentedString(source)).append("\n");
+        sb.append("    target: ").append(toIndentedString(target)).append("\n");
+
+        sb.append("}");
+        return sb.toString();
+    }
+
+    /**
+     * Convert the given object to string with each line indented by 4 spaces
+     * (except the first line).
+     */
+    private String toIndentedString(Object o) {
+        if (o == null) {
+            return "null";
+        }
+        return o.toString().replace("\n", "\n    ");
+    }
+
+
+    public static ScholixV1 fromScholix(Scholix input) {
+        if (input == null)
+            return null;
+        final ScholixV1 result = new ScholixV1();
+
+
+        if (input.getLinkprovider()!= null)
+            result.setLinkProvider(input.getLinkprovider()
+                    .stream()
+                    .map(ScholixProvider::fromScholixEntityId)
+                    .collect(Collectors.toList()));
+
+        result.setPublicationDate(input.getPublicationDate());
+
+        result.setRelationship(ScholixRelationship.fromScholixIndexRelationship(input.getRelationship()));
+
+        result.setSource(ScholixItem.fromScholixResource(input.getSource()));
+        result.setTarget(ScholixItem.fromScholixResource(input.getTarget()));
+        return result;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/LinkProviderType.java

@@ -0,0 +1,123 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+import java.util.Objects;
+
+/**
+ * The type Link provider type.
+ */
+public class LinkProviderType {
+    @NotBlank
+    @JsonProperty("name")
+    private String name = null;
+
+    @NotBlank
+    @JsonProperty("totalRelationships")
+    private Integer totalRelationships = null;
+
+    /**
+     * Name link provider type.
+     *
+     * @param name the name
+     * @return the link provider type
+     */
+    public LinkProviderType name(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Get name
+     *
+     * @return name name
+     */
+    @Schema(description = "The Publisher Name")
+    @Size(max=300)
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets name.
+     *
+     * @param name the name
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * Total relationships link provider type.
+     *
+     * @param totalRelationships the total relationships
+     * @return the link provider type
+     */
+    public LinkProviderType totalRelationships(Integer totalRelationships) {
+        this.totalRelationships = totalRelationships;
+        return this;
+    }
+
+    /**
+     * Get totalRelationships
+     *
+     * @return totalRelationships total relationships
+     */
+    @Schema(description = "Total number of relationships that the publisher provides")
+    public Integer getTotalRelationships() {
+        return totalRelationships;
+    }
+
+    /**
+     * Sets total relationships.
+     *
+     * @param totalRelationships the total relationships
+     */
+    public void setTotalRelationships(Integer totalRelationships) {
+        this.totalRelationships = totalRelationships;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        LinkProviderType linkPublisher = (LinkProviderType) o;
+        return Objects.equals(this.name, linkPublisher.name) &&
+                Objects.equals(this.totalRelationships, linkPublisher.totalRelationships);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, totalRelationships);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("class LinkPublisher {\n");
+
+        sb.append("    name: ").append(toIndentedString(name)).append("\n");
+        sb.append("    totalRelationships: ").append(toIndentedString(totalRelationships)).append("\n");
+        sb.append("}");
+        return sb.toString();
+    }
+
+    /**
+     * Convert the given object to string with each line indented by 4 spaces
+     * (except the first line).
+     */
+    private String toIndentedString(Object o) {
+        if (o == null) {
+            return "null";
+        }
+        return o.toString().replace("\n", "\n    ");
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/PageResultType.java

@@ -0,0 +1,114 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The main class that show the page result from the method
+ * /l2/links
+ */
+public class PageResultType implements Serializable {
+
+    @NotBlank
+    @JsonProperty("currentPage")
+    @ApiModelProperty(position = 0)
+    private Integer currentPage = 0;
+
+    @NotBlank
+    @JsonProperty("totalLinks")
+    @ApiModelProperty(position = 1)
+    private  Integer totalLinks= 0;
+
+    @NotBlank
+    @JsonProperty("totalPages")
+    @ApiModelProperty(position = 2)
+    private Integer totalPages = 0;
+
+    @NotBlank
+    @JsonProperty("result")
+    @ApiModelProperty(position = 3)
+    private List<ScholixType> result = new ArrayList<>();
+
+
+    /**
+     * Gets current page.
+     *
+     * @return the current page
+     */
+    @Schema(description = "The Current page of the results")
+    public Integer getCurrentPage() {
+        return currentPage;
+    }
+
+    /**
+     * Sets current page.
+     *
+     * @param currentPage the current page
+     */
+    public void setCurrentPage(Integer currentPage) {
+        this.currentPage = currentPage;
+    }
+
+    /**
+     * Gets total links.
+     *
+     * @return the total links
+     */
+    @Schema(description = "The total number of Links found by the query")
+    public Integer getTotalLinks() {
+        return totalLinks;
+    }
+
+    /**
+     * Sets total links.
+     *
+     * @param totalLinks the total links
+     */
+    public void setTotalLinks(Integer totalLinks) {
+        this.totalLinks = totalLinks;
+    }
+
+    /**
+     * Gets total pages.
+     *
+     * @return the total pages
+     */
+    @Schema(description = "The Total number of pages")
+    public Integer getTotalPages() {
+        return totalPages;
+    }
+
+    /**
+     * Sets total pages.
+     *
+     * @param totalPages the total pages
+     */
+    public void setTotalPages(Integer totalPages) {
+        this.totalPages = totalPages;
+    }
+
+    /**
+     * Gets result.
+     *
+     * @return the result
+     */
+    @Schema(description = "The First page of Scholix results")
+    public List<ScholixType> getResult() {
+        return result;
+    }
+
+    /**
+     * Sets result.
+     *
+     * @param result the result
+     */
+    public void setResult(List<ScholixType> result) {
+        this.result = result;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/RelationshipType.java

@@ -0,0 +1,107 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixRelationship;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotNull;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * The type Relationship type.
+ */
+public class RelationshipType {
+
+    @NotNull
+    @JsonProperty("Name")
+    private String name;
+
+    @JsonProperty("SubType")
+    private String subType;
+
+    @JsonProperty("SubTypeSchema")
+    private String subTypeSchema;
+
+
+    public static Map<String, String> relationMapping = Stream.of(new String[][] {
+            { "issupplementto", "IsSupplementTo" },
+            { "issupplementedby", "IsSupplementedBy" },
+            { "references", "References" },
+            { "isreferencedby", "IsReferencedBy" },
+    }).collect(Collectors.toMap(data -> data[0], data -> data[1]));
+
+
+    /**
+     * Gets The relationship type chosen from a Scholix controlled vocabulary
+     *
+     * @return the name
+     */
+    @Schema(description = "The relationship type chosen from a Scholix controlled vocabulary")
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets The relationship type chosen from a Scholix controlled vocabulary
+     *
+     * @param name the name
+     * @return the RelationshipType instance
+     */
+    public RelationshipType setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Gets The sub-type of RelationshipType.Name
+     *
+     * @return the sub type
+     */
+    @Schema(description = "The sub-type of RelationshipType.Name")
+    public String getSubType() {
+        return subType;
+    }
+
+    /**
+     * Sets The sub-type of RelationshipType.Name
+     *
+     * @param subType the sub type
+     * @return the RelationshipType instance
+     */
+    public RelationshipType setSubType(String subType) {
+        this.subType = subType;
+        return this;
+    }
+
+    /**
+     * Gets The name of the schema or controlled list from which RelationshipSub-type is sourced.
+     *
+     * @return the sub type schema
+     */
+    @Schema(description = "The name of the schema or controlled list from which RelationshipSub-type is sourced")
+    public String getSubTypeSchema() {
+        return subTypeSchema;
+    }
+
+    /**
+     * Sets The name of the schema or controlled list from which RelationshipSub-type is sourced.
+     *
+     * @param subTypeSchema the sub type schema
+     * @return the RelationshipType instance
+     */
+    public RelationshipType setSubTypeSchema(String subTypeSchema) {
+        this.subTypeSchema = subTypeSchema;
+        return this;
+    }
+
+    public static RelationshipType fromScholixRelationship(ScholixRelationship inputRels) {
+
+        return new RelationshipType()
+                .setName(relationMapping.getOrDefault(inputRels.getName(), "IsRelatedTo"))
+                .setSubType(inputRels.getName())
+                .setSubTypeSchema(inputRels.getSchema());
+
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/ScholixCreatorType.java

@@ -0,0 +1,86 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixEntityId;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * The type Scholix creator type.
+ */
+public class ScholixCreatorType {
+
+    @NotBlank
+    @JsonProperty("name")
+    private String name = null;
+
+
+    @NotBlank
+    @JsonProperty("identifier")
+    private List<ScholixIdentifierType> identifier = new ArrayList<>();
+
+    /**
+     * Gets A List of unique string that identifies the creator
+     *
+     * @return the identifier
+     */
+    @Schema(description = "A List of unique string that identifies the creator")
+    public List<ScholixIdentifierType> getIdentifier() {
+        return identifier;
+    }
+
+    /**
+     * Sets A List of unique string that identifies the creator
+     *
+     * @param identifier the identifier
+     * @return the identifier
+     */
+    public ScholixCreatorType setIdentifier(List<ScholixIdentifierType> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+
+    /**
+     * Gets The name of the Object Creator
+     *
+     * @return the name
+     */
+    @Schema(description = "The name of the Object Creator")
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets The name of the Object Creator
+     *
+     * @param name the name
+     * @return the name
+     */
+    public ScholixCreatorType setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public static ScholixCreatorType fromScholixEntityId(final ScholixEntityId inputCreator) {
+        if (inputCreator == null)
+            return null;
+        ScholixCreatorType instance = new ScholixCreatorType().setName(inputCreator.getName());
+
+
+        if (inputCreator.getIdentifiers()!= null && inputCreator.getIdentifiers().size()>0)
+            instance.setIdentifier(inputCreator.getIdentifiers()
+                    .stream()
+                    .map(i ->new ScholixIdentifierType()
+                            .setId(i.getIdentifier())
+                            .setIdScheme(i.getSchema()))
+                    .collect(Collectors.toList()));
+        return instance;
+
+
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/ScholixIdentifierType.java

@@ -0,0 +1,104 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixIdentifier;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+
+/**
+ * The type Scholix identifier type.
+ */
+public class ScholixIdentifierType {
+
+    @NotBlank
+    @JsonProperty("ID")
+    private String id = null;
+
+    @NotBlank
+    @JsonProperty("IDScheme")
+    private String idScheme = null;
+
+    @NotBlank
+    @JsonProperty("IDURL")
+    private String idURL = null;
+
+
+    /**
+     * Gets The identifier
+     *
+     * @return the id
+     */
+    @Schema(description = "The identifier")
+    public String getId() {
+        return id;
+    }
+
+    /**
+     * Sets The identifier
+     *
+     * @param id the id
+     * @return the id
+     */
+    public ScholixIdentifierType setId(String id) {
+        this.id = id;
+        return this;
+    }
+
+    /**
+     * Gets The scheme or namespace of the identifier string
+     *
+     * @return the id scheme
+     */
+    @Schema(description = "The scheme or namespace of the identifier string")
+    public String getIdScheme() {
+        return idScheme;
+    }
+
+    /**
+     * Sets The scheme or namespace of the identifier string
+     *
+     * @param idScheme the id scheme
+     * @return the id scheme
+     */
+    public ScholixIdentifierType setIdScheme(String idScheme) {
+        this.idScheme = idScheme;
+        return this;
+    }
+
+    /**
+     * Gets An internet resolvable form of the identifier
+     *
+     * @return the id url
+     */
+    @Schema(description = "An internet resolvable form of the identifier")
+    public String getIdURL() {
+        return idURL;
+    }
+
+    /**
+     * Sets An internet resolvable form of the identifier
+     *
+     * @param idURL the id url
+     * @return the id url
+     */
+    public ScholixIdentifierType setIdURL(String idURL) {
+        this.idURL = idURL;
+        return this;
+    }
+
+
+    public static ScholixIdentifierType fromScholixIdentifier(ScholixIdentifier input) {
+        if (input== null)
+            return null;
+        final ScholixIdentifierType instance = new ScholixIdentifierType();
+
+        instance.setId(input.getIdentifier());
+        instance.setIdScheme(input.getSchema());
+        instance.setIdURL(input.getUrl());
+        return instance;
+    }
+
+
+
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/ScholixItemType.java

@@ -0,0 +1,188 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixResource;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * The type Scholix item type.
+ */
+public class ScholixItemType {
+
+    @JsonProperty("Identifier")
+    private List<ScholixIdentifierType> identifier = new ArrayList();
+
+    @JsonProperty("Title")
+    private String title;
+
+    @JsonProperty("Type")
+    private String type;
+
+    @JsonProperty("Creator")
+    private List<ScholixCreatorType> creator = new ArrayList<>();
+
+    @JsonProperty("PublicationDate")
+    private String publicationDate;
+
+    @JsonProperty("Publisher")
+    private List<ScholixLinkProviderType> publisher = new ArrayList<>();
+
+
+    /**
+     * Gets identifier.
+     *
+     * @return the identifier
+     */
+    public List<ScholixIdentifierType> getIdentifier() {
+        return identifier;
+    }
+
+    /**
+     * Sets identifier.
+     *
+     * @param identifier the identifier
+     * @return the identifier
+     */
+    public ScholixItemType setIdentifier(List<ScholixIdentifierType> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+    /**
+     * Gets title.
+     *
+     * @return the title
+     */
+    public String getTitle() {
+        return title;
+    }
+
+    /**
+     * Sets title.
+     *
+     * @param title the title
+     * @return the title
+     */
+    public ScholixItemType setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    /**
+     * Gets type.
+     *
+     * @return the type
+     */
+    public String getType() {
+        return type;
+    }
+
+    /**
+     * Sets type.
+     *
+     * @param type the type
+     * @return the type
+     */
+    public ScholixItemType setType(String type) {
+        this.type = type;
+        return this;
+    }
+
+    /**
+     * Gets creator.
+     *
+     * @return the creator
+     */
+    public List<ScholixCreatorType> getCreator() {
+        return creator;
+    }
+
+    /**
+     * Sets creator.
+     *
+     * @param creator the creator
+     * @return the creator
+     */
+    public ScholixItemType setCreator(List<ScholixCreatorType> creator) {
+        this.creator = creator;
+        return this;
+    }
+
+    /**
+     * Gets publication date.
+     *
+     * @return the publication date
+     */
+    public String getPublicationDate() {
+        return publicationDate;
+    }
+
+    /**
+     * Sets publication date.
+     *
+     * @param publicationDate the publication date
+     * @return the publication date
+     */
+    public ScholixItemType setPublicationDate(String publicationDate) {
+        this.publicationDate = publicationDate;
+        return this;
+    }
+
+    /**
+     * Gets publisher.
+     *
+     * @return the publisher
+     */
+    public List<ScholixLinkProviderType> getPublisher() {
+        return publisher;
+    }
+
+    /**
+     * Sets publisher.
+     *
+     * @param publisher the publisher
+     * @return the publisher
+     */
+    public ScholixItemType setPublisher(List<ScholixLinkProviderType> publisher) {
+        this.publisher = publisher;
+        return this;
+    }
+
+
+
+    public static ScholixItemType fromScholixResource(final ScholixResource input) {
+        if (input == null)
+            return null;
+        final ScholixItemType instance = new ScholixItemType();
+        instance.setType("publication".equalsIgnoreCase(input.getObjectType())?"literature": "dataset");
+        instance.setTitle(input.getTitle());
+
+        if (input.getIdentifier()!= null)
+            instance.setIdentifier(input.getIdentifier()
+                    .stream()
+                    .map(ScholixIdentifierType::fromScholixIdentifier )
+                    .collect(Collectors.toList())
+            );
+
+
+        if (input.getPublisher()!= null) {
+            instance.setPublisher(
+                    input.getPublisher().stream()
+                            .map(ScholixLinkProviderType::fromScholixEntityId)
+                            .collect(Collectors.toList())
+            );
+        }
+
+        instance.setPublicationDate(input.getPublicationDate());
+        if(input.getCreator()!=null)
+            instance.setCreator(input.getCreator()
+                        .stream()
+                        .map(ScholixCreatorType::fromScholixEntityId)
+                        .collect(Collectors.toList()));
+
+        return instance;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/ScholixLinkProviderType.java

@@ -0,0 +1,86 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixEntityId;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * The type Scholix link provider type.
+ */
+public class ScholixLinkProviderType {
+    @NotBlank
+    @JsonProperty("name")
+    private String name = null;
+
+
+    @NotBlank
+    @JsonProperty("identifier")
+    private List<ScholixIdentifierType> identifier = new ArrayList<>();
+
+    /**
+     * Gets A List of unique string that identifies the object
+     *
+     * @return the identifier
+     */
+    @Schema(description = "A List of unique string that identifies the object")
+    public List<ScholixIdentifierType> getIdentifier() {
+        return identifier;
+    }
+
+    /**
+     * Sets A List of unique string that identifies the object
+     *
+     * @param identifier the identifier
+     * @return the identifier
+     */
+    public ScholixLinkProviderType setIdentifier(List<ScholixIdentifierType> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+
+    /**
+     * Gets The name of the Provider
+     *
+     * @return the name
+     */
+    @Schema(description = "The name of the Provider")
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets The name of the Provider
+     *
+     * @param name the name
+     * @return the name
+     */
+    public ScholixLinkProviderType setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+
+    public static ScholixLinkProviderType fromScholixEntityId(final ScholixEntityId provider) {
+        if (provider == null)
+            return null;
+        ScholixLinkProviderType instance = new ScholixLinkProviderType().setName(provider.getName());
+
+
+        if (provider.getIdentifiers()!= null && provider.getIdentifiers().size()>0)
+            instance.setIdentifier(provider.getIdentifiers()
+                    .stream()
+                    .map(i ->new ScholixIdentifierType()
+                                    .setId(i.getIdentifier())
+                                    .setIdScheme(i.getSchema()))
+                    .collect(Collectors.toList()));
+        return instance;
+
+
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v2/ScholixType.java

@@ -0,0 +1,197 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v2;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.scholix.Scholix;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.io.Serializable;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * The type Scholix type.
+ */
+public class ScholixType  implements Serializable {
+
+
+    @NotBlank
+    @JsonProperty("RelationshipType")
+    private RelationshipType relationshipType ;
+
+    @NotBlank
+    @JsonProperty("source")
+    private ScholixItemType source ;
+
+    @NotBlank
+    @JsonProperty("target")
+    private ScholixItemType target ;
+
+    @JsonProperty("HarvestDate")
+    private String harvestDate ;
+
+
+    @JsonProperty("LicenseURL")
+    private String licenseURL ;
+
+    @JsonProperty("LinkProvider")
+    private List<ScholixLinkProviderType> linkProvider ;
+
+    @JsonProperty("LinkPublicationDate")
+    private String linkPublicationDate ;
+
+
+    /**
+     * Gets the nature of the relationship between the source object and target object in this Link Information Package
+     *
+     * @return the relationship type
+     */
+    @Schema(description = "The nature of the relationship between the source object and target object in this Link Information Package")
+    public RelationshipType getRelationshipType() {
+        return relationshipType;
+    }
+
+    /**
+     * Sets relationship type.
+     *
+     * @param relationshipType the relationship type
+     */
+    public void setRelationshipType(RelationshipType relationshipType) {
+        this.relationshipType = relationshipType;
+    }
+
+    /**
+     * Gets Root element relative to all properties describing the link’s source object
+     *
+     * @return the source
+     */
+    @Schema(description = "Root element relative to all properties describing the link’s source object")
+    public ScholixItemType getSource() {
+        return source;
+    }
+
+    /**
+     * Sets source.
+     *
+     * @param source the source
+     */
+    public void setSource(ScholixItemType source) {
+        this.source = source;
+    }
+
+    /**
+     * Gets Root element relative to all properties describing the link’s target object
+     *
+     * @return the target
+     */
+    @Schema(description = "Gets Root element relative to all properties describing the link’s target object")
+    public ScholixItemType getTarget() {
+        return target;
+    }
+
+    /**
+     * Sets target.
+     *
+     * @param target the target
+     */
+    public void setTarget(ScholixItemType target) {
+        this.target = target;
+    }
+
+    /**
+     * Gets harvest date.
+     *
+     * @return the harvest date
+     */
+    public String getHarvestDate() {
+        return harvestDate;
+    }
+
+    /**
+     * Sets harvest date.
+     *
+     * @param harvestDate the harvest date
+     */
+    public void setHarvestDate(String harvestDate) {
+        this.harvestDate = harvestDate;
+    }
+
+    /**
+     * Gets The URL of the license for the Scholix Link Information Package
+     *
+     * @return the license url
+     */
+    @Schema(description = "The URL of the license for the Scholix Link Information Package")
+    public String getLicenseURL() {
+        return licenseURL;
+    }
+
+    /**
+     * Sets license url.
+     *
+     * @param licenseURL the license url
+     */
+    public void setLicenseURL(String licenseURL) {
+        this.licenseURL = licenseURL;
+    }
+
+    /**
+     * Gets The source(s) of this Link Information Package.
+     *
+     * @return the link provider
+     */
+    @Schema(description = "The source(s) of this Link Information Package")
+    public List<ScholixLinkProviderType> getLinkProvider() {
+        return linkProvider;
+    }
+
+    /**
+     * Sets link provider.
+     *
+     * @param linkProvider the link provider
+     */
+    public void setLinkProvider(List<ScholixLinkProviderType> linkProvider) {
+        this.linkProvider = linkProvider;
+    }
+
+    /**
+     * Gets Date when this Link Information Package was first formally issued from this current Provider
+     *
+     * @return the link publication date
+     */
+    @Schema(description = "Date when this Link Information Package was first formally issued from this current Provider")
+
+    public String getLinkPublicationDate() {
+        return linkPublicationDate;
+    }
+
+    /**
+     * Sets link publication date.
+     *
+     * @param linkPublicationDate the link publication date
+     */
+    public void setLinkPublicationDate(String linkPublicationDate) {
+        this.linkPublicationDate = linkPublicationDate;
+    }
+
+
+
+    public static ScholixType fromScholix(Scholix input) {
+        final ScholixType instance = new ScholixType();
+        instance.setLinkPublicationDate(input.getPublicationDate());
+        instance.setHarvestDate(input.getPublicationDate());
+        instance.setRelationshipType(RelationshipType.fromScholixRelationship(input.getRelationship()));
+
+        if(input.getLinkprovider()!= null && input.getLinkprovider().size()>0)
+            instance.setLinkProvider(input.getLinkprovider()
+                    .stream()
+                    .map(ScholixLinkProviderType::fromScholixEntityId)
+                    .collect(Collectors.toList())
+            );
+
+
+        instance.setSource(ScholixItemType.fromScholixResource(input.getSource()));
+        instance.setTarget(ScholixItemType.fromScholixResource(input.getTarget()));
+        return instance;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v3/ScholixItemType.java

@@ -0,0 +1,215 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v3;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.api.model.v2.ScholixCreatorType;
+import eu.dnetlib.dhp.schema.sx.api.model.v2.ScholixIdentifierType;
+import eu.dnetlib.dhp.schema.sx.api.model.v2.ScholixLinkProviderType;
+import eu.dnetlib.dhp.schema.sx.scholix.ScholixResource;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * The type Scholix item type.
+ */
+public class ScholixItemType {
+
+    @JsonProperty("Identifier")
+    private List<ScholixIdentifierType> identifier = new ArrayList();
+
+    @JsonProperty("Title")
+    private String title;
+
+    @JsonProperty("Type")
+    private String type;
+
+    @JsonProperty("subType")
+    private String subType;
+
+    @JsonProperty("Creator")
+    private List<ScholixCreatorType> creator = new ArrayList<>();
+
+    @JsonProperty("PublicationDate")
+    private String publicationDate;
+
+    @JsonProperty("Publisher")
+    private List<ScholixLinkProviderType> publisher = new ArrayList<>();
+
+
+    /**
+     * Gets identifier.
+     *
+     * @return the identifier
+     */
+    public List<ScholixIdentifierType> getIdentifier() {
+        return identifier;
+    }
+
+    /**
+     * Sets identifier.
+     *
+     * @param identifier the identifier
+     * @return the identifier
+     */
+    public ScholixItemType setIdentifier(List<ScholixIdentifierType> identifier) {
+        this.identifier = identifier;
+        return this;
+    }
+
+    /**
+     * Gets title.
+     *
+     * @return the title
+     */
+    public String getTitle() {
+        return title;
+    }
+
+    /**
+     * Sets title.
+     *
+     * @param title the title
+     * @return the title
+     */
+    public ScholixItemType setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    /**
+     * Gets type.
+     *
+     * @return the type
+     */
+    public String getSubType() {
+        return subType;
+    }
+
+    /**
+     * Sets sub Type.
+     *
+     * @param subType the subType
+     * @return the title
+     */
+    public ScholixItemType setSubType(String subType) {
+        this.subType = subType;
+        return this;
+    }
+
+    /**
+     * Gets type.
+     *
+     * @return the type
+     */
+    public String getType() {
+        return type;
+    }
+
+
+    /**
+     * Sets type.
+     *
+     * @param type the type
+     * @return the type
+     */
+    public ScholixItemType setType(String type) {
+        this.type = type;
+        return this;
+    }
+
+    /**
+     * Gets creator.
+     *
+     * @return the creator
+     */
+    public List<ScholixCreatorType> getCreator() {
+        return creator;
+    }
+
+    /**
+     * Sets creator.
+     *
+     * @param creator the creator
+     * @return the creator
+     */
+    public ScholixItemType setCreator(List<ScholixCreatorType> creator) {
+        this.creator = creator;
+        return this;
+    }
+
+    /**
+     * Gets publication date.
+     *
+     * @return the publication date
+     */
+    public String getPublicationDate() {
+        return publicationDate;
+    }
+
+    /**
+     * Sets publication date.
+     *
+     * @param publicationDate the publication date
+     * @return the publication date
+     */
+    public ScholixItemType setPublicationDate(String publicationDate) {
+        this.publicationDate = publicationDate;
+        return this;
+    }
+
+    /**
+     * Gets publisher.
+     *
+     * @return the publisher
+     */
+    public List<ScholixLinkProviderType> getPublisher() {
+        return publisher;
+    }
+
+    /**
+     * Sets publisher.
+     *
+     * @param publisher the publisher
+     * @return the publisher
+     */
+    public ScholixItemType setPublisher(List<ScholixLinkProviderType> publisher) {
+        this.publisher = publisher;
+        return this;
+    }
+
+
+
+    public static ScholixItemType fromScholixResource(final ScholixResource input) {
+        if (input == null)
+            return null;
+        final ScholixItemType instance = new ScholixItemType();
+        instance.setType("publication".equalsIgnoreCase(input.getObjectType())?"literature": "dataset");
+        instance.setTitle(input.getTitle());
+
+        if (input.getIdentifier()!= null)
+            instance.setIdentifier(input.getIdentifier()
+                    .stream()
+                    .map(ScholixIdentifierType::fromScholixIdentifier )
+                    .collect(Collectors.toList())
+            );
+
+
+        if (input.getPublisher()!= null) {
+            instance.setPublisher(
+                    input.getPublisher().stream()
+                            .map(ScholixLinkProviderType::fromScholixEntityId)
+                            .collect(Collectors.toList())
+            );
+        }
+
+        instance.setPublicationDate(input.getPublicationDate());
+        if(input.getCreator()!=null)
+            instance.setCreator(input.getCreator()
+                        .stream()
+                        .map(ScholixCreatorType::fromScholixEntityId)
+                        .collect(Collectors.toList()));
+
+        return instance;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/sx/api/model/v3/ScholixType.java

@@ -0,0 +1,199 @@
+package eu.dnetlib.dhp.schema.sx.api.model.v3;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import eu.dnetlib.dhp.schema.sx.api.model.v2.RelationshipType;
+import eu.dnetlib.dhp.schema.sx.api.model.v2.ScholixLinkProviderType;
+import eu.dnetlib.dhp.schema.sx.scholix.Scholix;
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import javax.validation.constraints.NotBlank;
+import java.io.Serializable;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * The type Scholix type.
+ */
+public class ScholixType implements Serializable {
+
+
+    @NotBlank
+    @JsonProperty("RelationshipType")
+    private RelationshipType relationshipType ;
+
+    @NotBlank
+    @JsonProperty("source")
+    private ScholixItemType source ;
+
+    @NotBlank
+    @JsonProperty("target")
+    private ScholixItemType target ;
+
+    @JsonProperty("HarvestDate")
+    private String harvestDate ;
+
+
+    @JsonProperty("LicenseURL")
+    private String licenseURL ;
+
+    @JsonProperty("LinkProvider")
+    private List<ScholixLinkProviderType> linkProvider ;
+
+    @JsonProperty("LinkPublicationDate")
+    private String linkPublicationDate ;
+
+
+    /**
+     * Gets the nature of the relationship between the source object and target object in this Link Information Package
+     *
+     * @return the relationship type
+     */
+    @Schema(description = "The nature of the relationship between the source object and target object in this Link Information Package")
+    public RelationshipType getRelationshipType() {
+        return relationshipType;
+    }
+
+    /**
+     * Sets relationship type.
+     *
+     * @param relationshipType the relationship type
+     */
+    public void setRelationshipType(RelationshipType relationshipType) {
+        this.relationshipType = relationshipType;
+    }
+
+    /**
+     * Gets Root element relative to all properties describing the link’s source object
+     *
+     * @return the source
+     */
+    @Schema(description = "Root element relative to all properties describing the link’s source object")
+    public ScholixItemType getSource() {
+        return source;
+    }
+
+    /**
+     * Sets source.
+     *
+     * @param source the source
+     */
+    public void setSource(ScholixItemType source) {
+        this.source = source;
+    }
+
+    /**
+     * Gets Root element relative to all properties describing the link’s target object
+     *
+     * @return the target
+     */
+    @Schema(description = "Gets Root element relative to all properties describing the link’s target object")
+    public ScholixItemType getTarget() {
+        return target;
+    }
+
+    /**
+     * Sets target.
+     *
+     * @param target the target
+     */
+    public void setTarget(ScholixItemType target) {
+        this.target = target;
+    }
+
+    /**
+     * Gets harvest date.
+     *
+     * @return the harvest date
+     */
+    public String getHarvestDate() {
+        return harvestDate;
+    }
+
+    /**
+     * Sets harvest date.
+     *
+     * @param harvestDate the harvest date
+     */
+    public void setHarvestDate(String harvestDate) {
+        this.harvestDate = harvestDate;
+    }
+
+    /**
+     * Gets The URL of the license for the Scholix Link Information Package
+     *
+     * @return the license url
+     */
+    @Schema(description = "The URL of the license for the Scholix Link Information Package")
+    public String getLicenseURL() {
+        return licenseURL;
+    }
+
+    /**
+     * Sets license url.
+     *
+     * @param licenseURL the license url
+     */
+    public void setLicenseURL(String licenseURL) {
+        this.licenseURL = licenseURL;
+    }
+
+    /**
+     * Gets The source(s) of this Link Information Package.
+     *
+     * @return the link provider
+     */
+    @Schema(description = "The source(s) of this Link Information Package")
+    public List<ScholixLinkProviderType> getLinkProvider() {
+        return linkProvider;
+    }
+
+    /**
+     * Sets link provider.
+     *
+     * @param linkProvider the link provider
+     */
+    public void setLinkProvider(List<ScholixLinkProviderType> linkProvider) {
+        this.linkProvider = linkProvider;
+    }
+
+    /**
+     * Gets Date when this Link Information Package was first formally issued from this current Provider
+     *
+     * @return the link publication date
+     */
+    @Schema(description = "Date when this Link Information Package was first formally issued from this current Provider")
+
+    public String getLinkPublicationDate() {
+        return linkPublicationDate;
+    }
+
+    /**
+     * Sets link publication date.
+     *
+     * @param linkPublicationDate the link publication date
+     */
+    public void setLinkPublicationDate(String linkPublicationDate) {
+        this.linkPublicationDate = linkPublicationDate;
+    }
+
+
+
+    public static ScholixType fromScholix(Scholix input) {
+        final ScholixType instance = new ScholixType();
+        instance.setLinkPublicationDate(input.getPublicationDate());
+        instance.setHarvestDate(input.getPublicationDate());
+        instance.setRelationshipType(RelationshipType.fromScholixRelationship(input.getRelationship()));
+
+        if(input.getLinkprovider()!= null && input.getLinkprovider().size()>0)
+            instance.setLinkProvider(input.getLinkprovider()
+                    .stream()
+                    .map(ScholixLinkProviderType::fromScholixEntityId)
+                    .collect(Collectors.toList())
+            );
+
+
+        instance.setSource(ScholixItemType.fromScholixResource(input.getSource()));
+        instance.setTarget(ScholixItemType.fromScholixResource(input.getTarget()));
+        return instance;
+    }
+}