WIP: defining model classes used to store the json payload in the Solr documents

README.md

@@ -13,9 +13,11 @@ This project defines **object schemas** of the OpenAIRE main entities and the re
 Namely it defines the model for 
 
 - the graph internal representation, defined under the package `eu.dnetlib.dhp.schema.oaf`
-- the public graph dump representations, defined under the package `eu.dnetlib.dhp.schema.dump.oaf`
 - the scholexplorer content representation, defined under the package `eu.dnetlib.dhp.schema.sx`
-- the contents acquired from the netadata aggregation subsystem, defined under the package `eu.dnetlib.dhp.schema.mdstore`
+- the contents acquired from the metadata aggregation subsystem, defined under the package `eu.dnetlib.dhp.schema.mdstore`
 - the ORCID common schemas, defined under the package `eu.dnetlib.dhp.schema.orcid`
+- the Solr common schemas used to represent the information returned to the Explore portal and the APIs, defined under 
+the package `eu.dnetlib.dhp.schema.solr`
  
-Te serialization of such objects (data store files) are used to pass data between workflow nodes in the processing pipeline.
+The serialization of such objects (data store files) are used to pass data between workflow nodes in the processing pipeline 
+and / or intended to be shared across components.

pom.xml

@@ -5,7 +5,7 @@
     <groupId>eu.dnetlib.dhp</groupId>
     <artifactId>dhp-schemas</artifactId>
     <packaging>jar</packaging>
-    <version>5.17.4-SNAPSHOT</version>
+    <version>6.0.0-SNAPSHOT</version>
 
     <licenses>
         <license>

src/main/java/eu/dnetlib/dhp/schema/solr/APC.java

@@ -0,0 +1,28 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+/**
+ * Used to refer to the Article Processing Charge information. It contains two parameters: -
+ * currency of type String to store the currency of the APC - amount of type String to stores the charged amount
+ */
+public class APC implements Serializable {
+    private String currency;
+    private String amount;
+
+    public String getCurrency() {
+        return currency;
+    }
+
+    public void setCurrency(String currency) {
+        this.currency = currency;
+    }
+
+    public String getAmount() {
+        return amount;
+    }
+
+    public void setAmount(String amount) {
+        this.amount = amount;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/AccessRight.java

@@ -0,0 +1,32 @@
+
+package eu.dnetlib.dhp.schema.solr;
+
+import java.util.Optional;
+
+/**
+ * This class models the access rights of research products.
+ */
+public class AccessRight {
+
+	private String value;
+
+	private OpenAccessRoute openAccessRoute;
+
+	public String getValue() {
+		return value;
+	}
+
+	public void setValue(String value) {
+		this.value = value;
+	}
+
+	public OpenAccessRoute getOpenAccessRoute() {
+		return openAccessRoute;
+	}
+
+	public void setOpenAccessRoute(OpenAccessRoute openAccessRoute) {
+		this.openAccessRoute = openAccessRoute;
+	}
+
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Author.java

@@ -0,0 +1,69 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Author implements Serializable {
+
+    private String fullname;
+
+    private String name;
+
+    private String surname;
+
+    private Integer rank;
+
+    /**
+     * The author's persistent identifiers
+     */
+    private Pid pid;
+
+    public static Author newInstance(String fullname, String name, String surname, int rank, Pid pid) {
+        Author a = new Author();
+        a.setFullname(fullname);
+        a.setName(name);
+        a.setSurname(surname);
+        a.setRank(rank);
+        a.setPid(pid);
+        return a;
+    }
+
+    public String getFullname() {
+        return fullname;
+    }
+
+    public void setFullname(String fullname) {
+        this.fullname = fullname;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getSurname() {
+        return surname;
+    }
+
+    public void setSurname(String surname) {
+        this.surname = surname;
+    }
+
+    public Integer getRank() {
+        return rank;
+    }
+
+    public void setRank(Integer rank) {
+        this.rank = rank;
+    }
+
+    public Pid getPid() {
+        return pid;
+    }
+
+    public void setPid(Pid pid) {
+        this.pid = pid;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/BestAccessRight.java

@@ -0,0 +1,42 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+/**
+ * BestAccessRight. Used to represent the result best access rights.
+ */
+public class BestAccessRight implements Serializable {
+
+    /**
+     * AccessRight code
+     */
+    private String code; // the classid in the Qualifier
+
+    /**
+     * Label for the access mode
+     */
+    private String label; // the classname in the Qualifier
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public static BestAccessRight newInstance(String code, String label) {
+        BestAccessRight ar = new BestAccessRight();
+        ar.code = code;
+        ar.label = label;
+        return ar;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Category.java

@@ -0,0 +1,42 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Category implements Serializable {
+
+    private String id;
+    private String label;
+    private List<Concept> concept;
+
+    private Category newInstance(String id, String label) {
+        Category category = new Category();
+        category.setId(id);
+        category.setLabel(label);
+        return category;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public List<Concept> getConcept() {
+        return concept;
+    }
+
+    public void setConcept(List<Concept> concept) {
+        this.concept = concept;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/CodeLabel.java

@@ -0,0 +1,33 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class CodeLabel implements Serializable {
+
+    private String code;
+
+    private String label;
+
+    public static CodeLabel newInstance(String code, String label) {
+        CodeLabel cl = new CodeLabel();
+        cl.setCode(code);
+        cl.setLabel(label);
+        return cl;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Concept.java

@@ -0,0 +1,32 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Concept implements Serializable {
+
+    private String id;
+    private String label;
+
+    private Concept newInstance(String id, String label) {
+        Concept concept = new Concept();
+        concept.setId(id);
+        concept.setLabel(label);
+        return concept;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Context.java

@@ -0,0 +1,53 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Context implements Serializable {
+
+    private String id;
+    private String label;
+    private String type;
+    private List<Category> category;
+
+    private Context newInstance(String id, String label, String type, List<Category> category) {
+        Context context = new Context();
+        context.setId(id);
+        context.setLabel(label);
+        context.setType(type);
+        context.setCategory(category);
+        return context;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public List<Category> getCategory() {
+        return category;
+    }
+
+    public void setCategory(List<Category> category) {
+        this.category = category;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Country.java

@@ -0,0 +1,47 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+/**
+ * Represents the country associated to the generic entity. The value for this element correspond to: - code corresponds
+ * to the classid of eu.dnetlib.dhp.schema.oaf.Country - label corresponds to the classname of
+ * eu.dnetlib.dhp.schema.oaf.Country - provenance set only if the dataInfo associated to the Country of the result to be
+ * dumped is not null. In this case : - provenance corresponds to dataInfo.provenanceaction.classid (to be modified with
+ * datainfo.provenanceaction.classname) - trust corresponds to dataInfo.trust
+ */
+public class Country implements Serializable {
+
+    /**
+     * ISO 3166-1 alpha-2 country code (i.e. IT)
+     */
+    private String code; // the classid in the Qualifier
+
+    /**
+     * The label for that code (i.e. Italy)
+     */
+    private String label; // the classname in the Qualifier
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public static Country newInstance(String code, String label) {
+        Country c = new Country();
+        c.setCode(code);
+        c.setLabel(label);
+        return c;
+    }
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Datasource.java

@@ -0,0 +1,537 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Datasource implements Serializable {
+
+    private CodeLabel datasourcetype;
+
+    private CodeLabel datasourcetypeui;
+
+    private CodeLabel eosctype; // Data Source | Service
+
+    private CodeLabel eoscdatasourcetype;
+
+    private CodeLabel openairecompatibility;
+
+    private String officialname;
+
+    private String englishname;
+
+    private String websiteurl;
+
+    private String logourl;
+
+    private String contactemail;
+
+    private String namespaceprefix;
+
+    private String latitude;
+
+    private String longitude;
+
+    private String dateofvalidation;
+
+    private String description;
+
+    private List<Subject> subjects;
+
+    private String odnumberofitems;
+
+    private String odnumberofitemsdate;
+
+    private String odpolicies;
+
+    private List<String> odlanguages;
+
+    private List<String> languages;
+
+    private List<String> odcontenttypes;
+
+    private List<String> accessinfopackage;
+
+    // re3data fields
+    private String releasestartdate;
+
+    private String releaseenddate;
+
+    private String missionstatementurl;
+
+    private Boolean dataprovider;
+
+    private Boolean serviceprovider;
+
+    // {open, restricted or closed}
+    private String databaseaccesstype;
+
+    // {open, restricted or closed}
+    private String datauploadtype;
+
+    // {feeRequired, registration, other}
+    private String databaseaccessrestriction;
+
+    // {feeRequired, registration, other}
+    private String datauploadrestriction;
+
+    private Boolean versioning;
+
+    private Boolean versioncontrol;
+
+    private String citationguidelineurl;
+
+    private String pidsystems;
+
+    private String certificates;
+
+    private List<CodeLabel> policies;
+
+    private Journal journal;
+
+    // New field for EOSC
+    private List<String> researchentitytypes;
+
+    // New field for EOSC
+    private List<String> providedproducttypes;
+
+    // New field for EOSC
+    private CodeLabel jurisdiction;
+
+    // New field for EOSC
+    private Boolean thematic;
+
+    // New field for EOSC
+    private List<CodeLabel> contentpolicies;
+
+    private String submissionpolicyurl;
+
+    private String preservationpolicyurl;
+
+    private List<String> researchproductaccesspolicies;
+
+    private List<String> researchproductmetadataaccesspolicies;
+
+    private Boolean consenttermsofuse;
+
+    private Boolean fulltextdownload;
+
+    private String consenttermsofusedate;
+
+    private String lastconsenttermsofusedate;
+
+    public CodeLabel getDatasourcetype() {
+        return datasourcetype;
+    }
+
+    public void setDatasourcetype(CodeLabel datasourcetype) {
+        this.datasourcetype = datasourcetype;
+    }
+
+    public CodeLabel getDatasourcetypeui() {
+        return datasourcetypeui;
+    }
+
+    public void setDatasourcetypeui(CodeLabel datasourcetypeui) {
+        this.datasourcetypeui = datasourcetypeui;
+    }
+
+    public CodeLabel getEosctype() {
+        return eosctype;
+    }
+
+    public void setEosctype(CodeLabel eosctype) {
+        this.eosctype = eosctype;
+    }
+
+    public CodeLabel getEoscdatasourcetype() {
+        return eoscdatasourcetype;
+    }
+
+    public void setEoscdatasourcetype(CodeLabel eoscdatasourcetype) {
+        this.eoscdatasourcetype = eoscdatasourcetype;
+    }
+
+    public CodeLabel getOpenairecompatibility() {
+        return openairecompatibility;
+    }
+
+    public void setOpenairecompatibility(CodeLabel openairecompatibility) {
+        this.openairecompatibility = openairecompatibility;
+    }
+
+    public String getOfficialname() {
+        return officialname;
+    }
+
+    public void setOfficialname(String officialname) {
+        this.officialname = officialname;
+    }
+
+    public String getEnglishname() {
+        return englishname;
+    }
+
+    public void setEnglishname(String englishname) {
+        this.englishname = englishname;
+    }
+
+    public String getWebsiteurl() {
+        return websiteurl;
+    }
+
+    public void setWebsiteurl(String websiteurl) {
+        this.websiteurl = websiteurl;
+    }
+
+    public String getLogourl() {
+        return logourl;
+    }
+
+    public void setLogourl(String logourl) {
+        this.logourl = logourl;
+    }
+
+    public String getContactemail() {
+        return contactemail;
+    }
+
+    public void setContactemail(String contactemail) {
+        this.contactemail = contactemail;
+    }
+
+    public String getNamespaceprefix() {
+        return namespaceprefix;
+    }
+
+    public void setNamespaceprefix(String namespaceprefix) {
+        this.namespaceprefix = namespaceprefix;
+    }
+
+    public String getLatitude() {
+        return latitude;
+    }
+
+    public void setLatitude(String latitude) {
+        this.latitude = latitude;
+    }
+
+    public String getLongitude() {
+        return longitude;
+    }
+
+    public void setLongitude(String longitude) {
+        this.longitude = longitude;
+    }
+
+    public String getDateofvalidation() {
+        return dateofvalidation;
+    }
+
+    public void setDateofvalidation(String dateofvalidation) {
+        this.dateofvalidation = dateofvalidation;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public List<Subject> getSubjects() {
+        return subjects;
+    }
+
+    public void setSubjects(List<Subject> subjects) {
+        this.subjects = subjects;
+    }
+
+    public String getOdnumberofitems() {
+        return odnumberofitems;
+    }
+
+    public void setOdnumberofitems(String odnumberofitems) {
+        this.odnumberofitems = odnumberofitems;
+    }
+
+    public String getOdnumberofitemsdate() {
+        return odnumberofitemsdate;
+    }
+
+    public void setOdnumberofitemsdate(String odnumberofitemsdate) {
+        this.odnumberofitemsdate = odnumberofitemsdate;
+    }
+
+    public String getOdpolicies() {
+        return odpolicies;
+    }
+
+    public void setOdpolicies(String odpolicies) {
+        this.odpolicies = odpolicies;
+    }
+
+    public List<String> getOdlanguages() {
+        return odlanguages;
+    }
+
+    public void setOdlanguages(List<String> odlanguages) {
+        this.odlanguages = odlanguages;
+    }
+
+    public List<String> getLanguages() {
+        return languages;
+    }
+
+    public void setLanguages(List<String> languages) {
+        this.languages = languages;
+    }
+
+    public List<String> getOdcontenttypes() {
+        return odcontenttypes;
+    }
+
+    public void setOdcontenttypes(List<String> odcontenttypes) {
+        this.odcontenttypes = odcontenttypes;
+    }
+
+    public List<String> getAccessinfopackage() {
+        return accessinfopackage;
+    }
+
+    public void setAccessinfopackage(List<String> accessinfopackage) {
+        this.accessinfopackage = accessinfopackage;
+    }
+
+    public String getReleasestartdate() {
+        return releasestartdate;
+    }
+
+    public void setReleasestartdate(String releasestartdate) {
+        this.releasestartdate = releasestartdate;
+    }
+
+    public String getReleaseenddate() {
+        return releaseenddate;
+    }
+
+    public void setReleaseenddate(String releaseenddate) {
+        this.releaseenddate = releaseenddate;
+    }
+
+    public String getMissionstatementurl() {
+        return missionstatementurl;
+    }
+
+    public void setMissionstatementurl(String missionstatementurl) {
+        this.missionstatementurl = missionstatementurl;
+    }
+
+    public Boolean getDataprovider() {
+        return dataprovider;
+    }
+
+    public void setDataprovider(Boolean dataprovider) {
+        this.dataprovider = dataprovider;
+    }
+
+    public Boolean getServiceprovider() {
+        return serviceprovider;
+    }
+
+    public void setServiceprovider(Boolean serviceprovider) {
+        this.serviceprovider = serviceprovider;
+    }
+
+    public String getDatabaseaccesstype() {
+        return databaseaccesstype;
+    }
+
+    public void setDatabaseaccesstype(String databaseaccesstype) {
+        this.databaseaccesstype = databaseaccesstype;
+    }
+
+    public String getDatauploadtype() {
+        return datauploadtype;
+    }
+
+    public void setDatauploadtype(String datauploadtype) {
+        this.datauploadtype = datauploadtype;
+    }
+
+    public String getDatabaseaccessrestriction() {
+        return databaseaccessrestriction;
+    }
+
+    public void setDatabaseaccessrestriction(String databaseaccessrestriction) {
+        this.databaseaccessrestriction = databaseaccessrestriction;
+    }
+
+    public String getDatauploadrestriction() {
+        return datauploadrestriction;
+    }
+
+    public void setDatauploadrestriction(String datauploadrestriction) {
+        this.datauploadrestriction = datauploadrestriction;
+    }
+
+    public Boolean getVersioning() {
+        return versioning;
+    }
+
+    public void setVersioning(Boolean versioning) {
+        this.versioning = versioning;
+    }
+
+    public Boolean getVersioncontrol() {
+        return versioncontrol;
+    }
+
+    public void setVersioncontrol(Boolean versioncontrol) {
+        this.versioncontrol = versioncontrol;
+    }
+
+    public String getCitationguidelineurl() {
+        return citationguidelineurl;
+    }
+
+    public void setCitationguidelineurl(String citationguidelineurl) {
+        this.citationguidelineurl = citationguidelineurl;
+    }
+
+    public String getPidsystems() {
+        return pidsystems;
+    }
+
+    public void setPidsystems(String pidsystems) {
+        this.pidsystems = pidsystems;
+    }
+
+    public String getCertificates() {
+        return certificates;
+    }
+
+    public void setCertificates(String certificates) {
+        this.certificates = certificates;
+    }
+
+    public List<CodeLabel> getPolicies() {
+        return policies;
+    }
+
+    public void setPolicies(List<CodeLabel> policies) {
+        this.policies = policies;
+    }
+
+    public Journal getJournal() {
+        return journal;
+    }
+
+    public void setJournal(Journal journal) {
+        this.journal = journal;
+    }
+
+    public List<String> getResearchentitytypes() {
+        return researchentitytypes;
+    }
+
+    public void setResearchentitytypes(List<String> researchentitytypes) {
+        this.researchentitytypes = researchentitytypes;
+    }
+
+    public List<String> getProvidedproducttypes() {
+        return providedproducttypes;
+    }
+
+    public void setProvidedproducttypes(List<String> providedproducttypes) {
+        this.providedproducttypes = providedproducttypes;
+    }
+
+    public CodeLabel getJurisdiction() {
+        return jurisdiction;
+    }
+
+    public void setJurisdiction(CodeLabel jurisdiction) {
+        this.jurisdiction = jurisdiction;
+    }
+
+    public Boolean getThematic() {
+        return thematic;
+    }
+
+    public void setThematic(Boolean thematic) {
+        this.thematic = thematic;
+    }
+
+    public List<CodeLabel> getContentpolicies() {
+        return contentpolicies;
+    }
+
+    public void setContentpolicies(List<CodeLabel> contentpolicies) {
+        this.contentpolicies = contentpolicies;
+    }
+
+    public String getSubmissionpolicyurl() {
+        return submissionpolicyurl;
+    }
+
+    public void setSubmissionpolicyurl(String submissionpolicyurl) {
+        this.submissionpolicyurl = submissionpolicyurl;
+    }
+
+    public String getPreservationpolicyurl() {
+        return preservationpolicyurl;
+    }
+
+    public void setPreservationpolicyurl(String preservationpolicyurl) {
+        this.preservationpolicyurl = preservationpolicyurl;
+    }
+
+    public List<String> getResearchproductaccesspolicies() {
+        return researchproductaccesspolicies;
+    }
+
+    public void setResearchproductaccesspolicies(List<String> researchproductaccesspolicies) {
+        this.researchproductaccesspolicies = researchproductaccesspolicies;
+    }
+
+    public List<String> getResearchproductmetadataaccesspolicies() {
+        return researchproductmetadataaccesspolicies;
+    }
+
+    public void setResearchproductmetadataaccesspolicies(List<String> researchproductmetadataaccesspolicies) {
+        this.researchproductmetadataaccesspolicies = researchproductmetadataaccesspolicies;
+    }
+
+    public Boolean getConsenttermsofuse() {
+        return consenttermsofuse;
+    }
+
+    public void setConsenttermsofuse(Boolean consenttermsofuse) {
+        this.consenttermsofuse = consenttermsofuse;
+    }
+
+    public Boolean getFulltextdownload() {
+        return fulltextdownload;
+    }
+
+    public void setFulltextdownload(Boolean fulltextdownload) {
+        this.fulltextdownload = fulltextdownload;
+    }
+
+    public String getConsenttermsofusedate() {
+        return consenttermsofusedate;
+    }
+
+    public void setConsenttermsofusedate(String consenttermsofusedate) {
+        this.consenttermsofusedate = consenttermsofusedate;
+    }
+
+    public String getLastconsenttermsofusedate() {
+        return lastconsenttermsofusedate;
+    }
+
+    public void setLastconsenttermsofusedate(String lastconsenttermsofusedate) {
+        this.lastconsenttermsofusedate = lastconsenttermsofusedate;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/EoscIfGuidelines.java

@@ -0,0 +1,68 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * Describes a reference to the EOSC Interoperability Framework (IF) Guidelines
+ */
+public class EoscIfGuidelines implements Serializable {
+
+    /**
+     * EOSC-IF local code. Later on it could be populated with a PID (e.g. DOI), but for the time being we stick to
+     * a more loose definition.
+     */
+    private String code;
+
+    /**
+     * EOSC-IF label
+     */
+    private String label;
+
+    /**
+     * EOSC-IF url
+     */
+    private String url;
+
+    /**
+     * EOSC-IF semantic relation (e.g. compliesWith). Values shall be controlled by a dedicated vocabulary.
+     */
+    private String semanticRelation;
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getSemanticRelation() {
+        return semanticRelation;
+    }
+
+    public void setSemanticRelation(String semanticRelation) {
+        this.semanticRelation = semanticRelation;
+    }
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/ExtraInfo.java

@@ -0,0 +1,6 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class ExtraInfo implements Serializable {
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Funder.java

@@ -0,0 +1,64 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Funder implements Serializable {
+
+    private String id;
+    private String shortname;
+    private String name;
+    private Country jurisdiction;
+    private List<Pid> pid;
+
+    public static Funder newInstance(String id, String shortname, String name, Country jurisdiction, List<Pid> pid) {
+        Funder funder = new Funder();
+        funder.setId(id);
+        funder.setShortname(shortname);
+        funder.setName(name);
+        funder.setJurisdiction(jurisdiction);
+        funder.setPid(pid);
+        return funder;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getShortname() {
+        return shortname;
+    }
+
+    public void setShortname(String shortname) {
+        this.shortname = shortname;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+
+    public Country getJurisdiction() {
+        return jurisdiction;
+    }
+
+    public void setJurisdiction(Country jurisdiction) {
+        this.jurisdiction = jurisdiction;
+    }
+
+    public List<Pid> getPid() {
+        return pid;
+    }
+
+    public void setPid(List<Pid> pid) {
+        this.pid = pid;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Funding.java

@@ -0,0 +1,60 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Funding implements Serializable {
+
+    private Funder funder;
+    private FundingLevel level0;
+    private FundingLevel level1;
+    private FundingLevel level2;
+
+    public Funding newInstance(Funder funder, FundingLevel level0) {
+        return newInstance(funder, level0, null, null);
+    }
+
+    public Funding newInstance(Funder funder, FundingLevel level0, FundingLevel level1) {
+        return newInstance(funder, level0, level1, null);
+    }
+
+    public Funding newInstance(Funder funder, FundingLevel level0, FundingLevel level1, FundingLevel level2) {
+        Funding funding = new Funding();
+        funding.setFunder(funder);
+        funding.setLevel0(level0);
+        funding.setLevel1(level1);
+        funding.setLevel2(level2);
+        return funding;
+    }
+
+    public Funder getFunder() {
+        return funder;
+    }
+
+    public void setFunder(Funder funder) {
+        this.funder = funder;
+    }
+
+    public FundingLevel getLevel0() {
+        return level0;
+    }
+
+    public void setLevel0(FundingLevel level0) {
+        this.level0 = level0;
+    }
+
+    public FundingLevel getLevel1() {
+        return level1;
+    }
+
+    public void setLevel1(FundingLevel level1) {
+        this.level1 = level1;
+    }
+
+    public FundingLevel getLevel2() {
+        return level2;
+    }
+
+    public void setLevel2(FundingLevel level2) {
+        this.level2 = level2;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/FundingLevel.java

@@ -0,0 +1,44 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class FundingLevel implements Serializable {
+
+    private String id;
+
+    private String description;
+
+    private String name;
+
+    public static FundingLevel newInstance(String id, String description, String name) {
+        FundingLevel level = new FundingLevel();
+        level.setId(id);
+        level.setDescription(description);
+        level.setName(name);
+        return level;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Instance.java

@@ -0,0 +1,41 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Instance implements Serializable {
+
+    private String license;
+
+    private AccessRight accessright;
+
+    private String instancetype;
+
+    private Provenance hostedby;
+
+    private List<String> url;
+
+    // other research products specifc
+    private String distributionlocation;
+
+    private Provenance collectedfrom;
+
+    private List<Pid> pid;
+
+    private List<Pid> alternateIdentifier;
+
+    private String dateofacceptance;
+
+    // ( article | book ) processing charges. Defined here to cope with possible wrongly typed
+    // results
+    private APC processingcharges;
+
+    private String refereed; // peer-review status
+
+    private List<Measure> measures;
+
+    /**
+     * Direct fulltext URL.
+     */
+    private String fulltext;
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Journal.java

@@ -0,0 +1,143 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Journal implements Serializable {
+
+    /**
+     * Name of the journal or conference
+     */
+    private String name;
+
+    /**
+     * The issn
+     */
+    private String issnPrinted;
+
+    /**
+     * The e-issn
+     */
+    private String issnOnline;
+
+    /**
+     * The kinking issn
+     */
+    private String issnLinking;
+
+    /**
+     * Start page
+     */
+    private String sp;
+
+    /**
+     * End page
+     */
+    private String ep;
+
+    /**
+     * Journal issue number
+     */
+    private String iss;
+
+    /**
+     * Volume
+     */
+    private String vol;
+
+    /**
+     * Edition of the journal or conference proceeding
+     */
+    private String edition;
+
+    private String conferenceplace;
+
+    private String conferencedate;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getIssnPrinted() {
+        return issnPrinted;
+    }
+
+    public void setIssnPrinted(String issnPrinted) {
+        this.issnPrinted = issnPrinted;
+    }
+
+    public String getIssnOnline() {
+        return issnOnline;
+    }
+
+    public void setIssnOnline(String issnOnline) {
+        this.issnOnline = issnOnline;
+    }
+
+    public String getIssnLinking() {
+        return issnLinking;
+    }
+
+    public void setIssnLinking(String issnLinking) {
+        this.issnLinking = issnLinking;
+    }
+
+    public String getSp() {
+        return sp;
+    }
+
+    public void setSp(String sp) {
+        this.sp = sp;
+    }
+
+    public String getEp() {
+        return ep;
+    }
+
+    public void setEp(String ep) {
+        this.ep = ep;
+    }
+
+    public String getIss() {
+        return iss;
+    }
+
+    public void setIss(String iss) {
+        this.iss = iss;
+    }
+
+    public String getVol() {
+        return vol;
+    }
+
+    public void setVol(String vol) {
+        this.vol = vol;
+    }
+
+    public String getEdition() {
+        return edition;
+    }
+
+    public void setEdition(String edition) {
+        this.edition = edition;
+    }
+
+    public String getConferenceplace() {
+        return conferenceplace;
+    }
+
+    public void setConferenceplace(String conferenceplace) {
+        this.conferenceplace = conferenceplace;
+    }
+
+    public String getConferencedate() {
+        return conferencedate;
+    }
+
+    public void setConferencedate(String conferencedate) {
+        this.conferencedate = conferencedate;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Language.java

@@ -0,0 +1,39 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Language implements Serializable {
+
+    /**
+     * alpha-3/ISO 639-2 code of the language
+     */
+    private String code; // the classid in the Qualifier
+
+    /**
+     * Language label in English
+     */
+    private String label; // the classname in the Qualifier
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public static Language newInstance(String code, String value) {
+        Language qualifier = new Language();
+        qualifier.setCode(code);
+        qualifier.setLabel(value);
+        return qualifier;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Measure.java

@@ -0,0 +1,8 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Measure implements Serializable {
+
+    //TODO define me!
+}

src/main/java/eu/dnetlib/dhp/schema/solr/OpenAccessColor.java

@@ -0,0 +1,13 @@
+
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+/**
+ * The OpenAccess color meant to be used on the result level
+ */
+public enum OpenAccessColor implements Serializable {
+
+	gold, hybrid, bronze
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/OpenAccessRoute.java

@@ -0,0 +1,15 @@
+
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+/**
+ * This Enum models the OpenAccess status, currently including only the values from Unpaywall
+ *
+ * https://support.unpaywall.org/support/solutions/articles/44001777288-what-do-the-types-of-oa-status-green-gold-hybrid-and-bronze-mean-
+ */
+public enum OpenAccessRoute implements Serializable {
+
+	gold, green, hybrid, bronze
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Organization.java

@@ -0,0 +1,167 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Organization implements Serializable {
+
+    private String legalshortname;
+
+    private String legalname;
+
+    private List<String> alternativeNames;
+
+    private String websiteurl;
+
+    private String logourl;
+
+    private String eclegalbody;
+
+    private String eclegalperson;
+
+    private String ecnonprofit;
+
+    private String ecresearchorganization;
+
+    private String echighereducation;
+
+    private String ecinternationalorganizationeurinterests;
+
+    private String ecinternationalorganization;
+
+    private String ecenterprise;
+
+    private String ecsmevalidated;
+
+    private String ecnutscode;
+
+    private CodeLabel country;
+
+    public String getLegalshortname() {
+        return legalshortname;
+    }
+
+    public void setLegalshortname(String legalshortname) {
+        this.legalshortname = legalshortname;
+    }
+
+    public String getLegalname() {
+        return legalname;
+    }
+
+    public void setLegalname(String legalname) {
+        this.legalname = legalname;
+    }
+
+    public List<String> getAlternativeNames() {
+        return alternativeNames;
+    }
+
+    public void setAlternativeNames(List<String> alternativeNames) {
+        this.alternativeNames = alternativeNames;
+    }
+
+    public String getWebsiteurl() {
+        return websiteurl;
+    }
+
+    public void setWebsiteurl(String websiteurl) {
+        this.websiteurl = websiteurl;
+    }
+
+    public String getLogourl() {
+        return logourl;
+    }
+
+    public void setLogourl(String logourl) {
+        this.logourl = logourl;
+    }
+
+    public String getEclegalbody() {
+        return eclegalbody;
+    }
+
+    public void setEclegalbody(String eclegalbody) {
+        this.eclegalbody = eclegalbody;
+    }
+
+    public String getEclegalperson() {
+        return eclegalperson;
+    }
+
+    public void setEclegalperson(String eclegalperson) {
+        this.eclegalperson = eclegalperson;
+    }
+
+    public String getEcnonprofit() {
+        return ecnonprofit;
+    }
+
+    public void setEcnonprofit(String ecnonprofit) {
+        this.ecnonprofit = ecnonprofit;
+    }
+
+    public String getEcresearchorganization() {
+        return ecresearchorganization;
+    }
+
+    public void setEcresearchorganization(String ecresearchorganization) {
+        this.ecresearchorganization = ecresearchorganization;
+    }
+
+    public String getEchighereducation() {
+        return echighereducation;
+    }
+
+    public void setEchighereducation(String echighereducation) {
+        this.echighereducation = echighereducation;
+    }
+
+    public String getEcinternationalorganizationeurinterests() {
+        return ecinternationalorganizationeurinterests;
+    }
+
+    public void setEcinternationalorganizationeurinterests(String ecinternationalorganizationeurinterests) {
+        this.ecinternationalorganizationeurinterests = ecinternationalorganizationeurinterests;
+    }
+
+    public String getEcinternationalorganization() {
+        return ecinternationalorganization;
+    }
+
+    public void setEcinternationalorganization(String ecinternationalorganization) {
+        this.ecinternationalorganization = ecinternationalorganization;
+    }
+
+    public String getEcenterprise() {
+        return ecenterprise;
+    }
+
+    public void setEcenterprise(String ecenterprise) {
+        this.ecenterprise = ecenterprise;
+    }
+
+    public String getEcsmevalidated() {
+        return ecsmevalidated;
+    }
+
+    public void setEcsmevalidated(String ecsmevalidated) {
+        this.ecsmevalidated = ecsmevalidated;
+    }
+
+    public String getEcnutscode() {
+        return ecnutscode;
+    }
+
+    public void setEcnutscode(String ecnutscode) {
+        this.ecnutscode = ecnutscode;
+    }
+
+    public CodeLabel getCountry() {
+        return country;
+    }
+
+    public void setCountry(CodeLabel country) {
+        this.country = country;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Pid.java

@@ -0,0 +1,26 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Pid implements Serializable {
+
+    private String type;
+
+    private String value;
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Project.java

@@ -0,0 +1,171 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Project implements Serializable {
+
+    private String websiteurl;
+
+    private String code;
+    private String acronym;
+    private String title;
+    private String startdate;
+    private String enddate;
+    private String callidentifier;
+    private String keywords;
+    private String duration;
+
+    private String ecarticle29_3;
+
+    private List<Subject> subjects;
+
+    private CodeLabel contracttype;
+
+    private String summary;
+
+    private String currency;
+
+    private Float totalcost;
+
+    private Float fundedamount;
+
+    private Funding funding;
+
+
+    public String getWebsiteurl() {
+        return websiteurl;
+    }
+
+    public void setWebsiteurl(String websiteurl) {
+        this.websiteurl = websiteurl;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getAcronym() {
+        return acronym;
+    }
+
+    public void setAcronym(String acronym) {
+        this.acronym = acronym;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getStartdate() {
+        return startdate;
+    }
+
+    public void setStartdate(String startdate) {
+        this.startdate = startdate;
+    }
+
+    public String getEnddate() {
+        return enddate;
+    }
+
+    public void setEnddate(String enddate) {
+        this.enddate = enddate;
+    }
+
+    public String getCallidentifier() {
+        return callidentifier;
+    }
+
+    public void setCallidentifier(String callidentifier) {
+        this.callidentifier = callidentifier;
+    }
+
+    public String getKeywords() {
+        return keywords;
+    }
+
+    public void setKeywords(String keywords) {
+        this.keywords = keywords;
+    }
+
+    public String getDuration() {
+        return duration;
+    }
+
+    public void setDuration(String duration) {
+        this.duration = duration;
+    }
+
+    public String getEcarticle29_3() {
+        return ecarticle29_3;
+    }
+
+    public void setEcarticle29_3(String ecarticle29_3) {
+        this.ecarticle29_3 = ecarticle29_3;
+    }
+
+    public List<Subject> getSubjects() {
+        return subjects;
+    }
+
+    public void setSubjects(List<Subject> subjects) {
+        this.subjects = subjects;
+    }
+
+    public CodeLabel getContracttype() {
+        return contracttype;
+    }
+
+    public void setContracttype(CodeLabel contracttype) {
+        this.contracttype = contracttype;
+    }
+
+    public String getSummary() {
+        return summary;
+    }
+
+    public void setSummary(String summary) {
+        this.summary = summary;
+    }
+
+    public String getCurrency() {
+        return currency;
+    }
+
+    public void setCurrency(String currency) {
+        this.currency = currency;
+    }
+
+    public Float getTotalcost() {
+        return totalcost;
+    }
+
+    public void setTotalcost(Float totalcost) {
+        this.totalcost = totalcost;
+    }
+
+    public Float getFundedamount() {
+        return fundedamount;
+    }
+
+    public void setFundedamount(Float fundedamount) {
+        this.fundedamount = fundedamount;
+    }
+
+    public Funding getFunding() {
+        return funding;
+    }
+
+    public void setFunding(Funding funding) {
+        this.funding = funding;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Provenance.java

@@ -0,0 +1,26 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Provenance implements Serializable {
+
+    private String dsId;
+
+    private String dsName;
+
+    public String getDsId() {
+        return dsId;
+    }
+
+    public void setDsId(String dsId) {
+        this.dsId = dsId;
+    }
+
+    public String getDsName() {
+        return dsName;
+    }
+
+    public void setDsName(String dsName) {
+        this.dsName = dsName;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/RelatedRecord.java

@@ -0,0 +1,216 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class RelatedRecord implements Serializable {
+
+    private RelatedRecordHeader header;
+
+    // common fields
+    private String title;
+    private String websiteurl; // datasource, organizations, projects
+
+    // results
+    private String dateofacceptance;
+    private String publisher;
+    private List<Pid> pid;
+    private String codeRepositoryUrl;
+    private String resulttype;
+    private List<Provenance> collectedfrom;
+    private List<Instance> instances;
+
+    // datasource
+    private String officialname;
+    private CodeLabel datasourcetype;
+    private CodeLabel datasourcetypeui;
+    private CodeLabel openairecompatibility;
+
+    // organization
+    private String legalname;
+    private String legalshortname;
+    private Country country;
+
+    // project
+    private String projectTitle;
+    private String code;
+    private String acronym;
+    private CodeLabel contracttype;
+    private Funding funding;
+
+    public RelatedRecordHeader getHeader() {
+        return header;
+    }
+
+    public void setHeader(RelatedRecordHeader header) {
+        this.header = header;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getWebsiteurl() {
+        return websiteurl;
+    }
+
+    public void setWebsiteurl(String websiteurl) {
+        this.websiteurl = websiteurl;
+    }
+
+    public String getDateofacceptance() {
+        return dateofacceptance;
+    }
+
+    public void setDateofacceptance(String dateofacceptance) {
+        this.dateofacceptance = dateofacceptance;
+    }
+
+    public String getPublisher() {
+        return publisher;
+    }
+
+    public void setPublisher(String publisher) {
+        this.publisher = publisher;
+    }
+
+    public List<Pid> getPid() {
+        return pid;
+    }
+
+    public void setPid(List<Pid> pid) {
+        this.pid = pid;
+    }
+
+    public String getCodeRepositoryUrl() {
+        return codeRepositoryUrl;
+    }
+
+    public void setCodeRepositoryUrl(String codeRepositoryUrl) {
+        this.codeRepositoryUrl = codeRepositoryUrl;
+    }
+
+    public String getResulttype() {
+        return resulttype;
+    }
+
+    public void setResulttype(String resulttype) {
+        this.resulttype = resulttype;
+    }
+
+    public List<Provenance> getCollectedfrom() {
+        return collectedfrom;
+    }
+
+    public void setCollectedfrom(List<Provenance> collectedfrom) {
+        this.collectedfrom = collectedfrom;
+    }
+
+    public List<Instance> getInstances() {
+        return instances;
+    }
+
+    public void setInstances(List<Instance> instances) {
+        this.instances = instances;
+    }
+
+    public String getOfficialname() {
+        return officialname;
+    }
+
+    public void setOfficialname(String officialname) {
+        this.officialname = officialname;
+    }
+
+    public CodeLabel getDatasourcetype() {
+        return datasourcetype;
+    }
+
+    public void setDatasourcetype(CodeLabel datasourcetype) {
+        this.datasourcetype = datasourcetype;
+    }
+
+    public CodeLabel getDatasourcetypeui() {
+        return datasourcetypeui;
+    }
+
+    public void setDatasourcetypeui(CodeLabel datasourcetypeui) {
+        this.datasourcetypeui = datasourcetypeui;
+    }
+
+    public CodeLabel getOpenairecompatibility() {
+        return openairecompatibility;
+    }
+
+    public void setOpenairecompatibility(CodeLabel openairecompatibility) {
+        this.openairecompatibility = openairecompatibility;
+    }
+
+    public String getLegalname() {
+        return legalname;
+    }
+
+    public void setLegalname(String legalname) {
+        this.legalname = legalname;
+    }
+
+    public String getLegalshortname() {
+        return legalshortname;
+    }
+
+    public void setLegalshortname(String legalshortname) {
+        this.legalshortname = legalshortname;
+    }
+
+    public Country getCountry() {
+        return country;
+    }
+
+    public void setCountry(Country country) {
+        this.country = country;
+    }
+
+    public String getProjectTitle() {
+        return projectTitle;
+    }
+
+    public void setProjectTitle(String projectTitle) {
+        this.projectTitle = projectTitle;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getAcronym() {
+        return acronym;
+    }
+
+    public void setAcronym(String acronym) {
+        this.acronym = acronym;
+    }
+
+    public CodeLabel getContracttype() {
+        return contracttype;
+    }
+
+    public void setContracttype(CodeLabel contracttype) {
+        this.contracttype = contracttype;
+    }
+
+    public Funding getFunding() {
+        return funding;
+    }
+
+    public void setFunding(Funding funding) {
+        this.funding = funding;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/RelatedRecordHeader.java

@@ -0,0 +1,55 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class RelatedRecordHeader implements Serializable {
+
+    private String relationType;
+
+    private String relationClass;
+
+    private String relatedIdentifier;
+
+    private String relatedRecordType;
+
+    public static RelatedRecordHeader newInstance(String relationType, String relationClass, String relatedIdentifier, String relatedRecordType) {
+        RelatedRecordHeader header = new RelatedRecordHeader();
+        header.setRelationType(relationType);
+        header.setRelationClass(relationClass);
+        header.setRelatedIdentifier(relatedIdentifier);
+        header.setRelatedRecordType(relatedRecordType);
+        return header;
+    }
+
+    public String getRelationType() {
+        return relationType;
+    }
+
+    public void setRelationType(String relationType) {
+        this.relationType = relationType;
+    }
+
+    public String getRelationClass() {
+        return relationClass;
+    }
+
+    public void setRelationClass(String relationClass) {
+        this.relationClass = relationClass;
+    }
+
+    public String getRelatedIdentifier() {
+        return relatedIdentifier;
+    }
+
+    public void setRelatedIdentifier(String relatedIdentifier) {
+        this.relatedIdentifier = relatedIdentifier;
+    }
+
+    public String getRelatedRecordType() {
+        return relatedRecordType;
+    }
+
+    public void setRelatedRecordType(String relatedRecordType) {
+        this.relatedRecordType = relatedRecordType;
+    }
+}

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

@@ -0,0 +1,161 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class Result implements Serializable {
+
+    /**
+     * Type of the result: one of 'publication', 'dataset', 'software', 'other' (see also https://api.openaire.eu/vocabularies/dnet:result_typologies)
+     */
+    private String resulttype;
+
+    /**
+     * Authors of the result
+     */
+    private List<Author> author;
+
+    /**
+     * The Subject.
+     */
+    private List<Subject> subject;
+
+    /**
+     * The result language
+     */
+    private Language language;
+
+    /**
+     * The list of countries associated to this result
+     */
+    private List<Country> country;
+
+    /**
+     * A name or title by which a scientific result is known. May be the title of a publication, of a dataset or the name of a piece of software.
+     */
+    private String maintitle;
+
+    /**
+     * Explanatory or alternative name by which a scientific result is known.
+     */
+    private String subtitle;
+
+    private List<String> description;
+
+    /**
+     * Main date of the research product: typically the publication or issued date. In case of a research result with
+     * different versions with different dates, the date of the result is selected as the most frequent well-formatted date.
+     * If not available, then the most recent and complete date among those that are well-formatted.
+     * For statistics, the year is extracted and the result is counted only among the result of that year.
+     * Example:
+     *  Pre-print date: 2019-02-03,
+     *  Article date provided by repository: 2020-02,
+     *  Article date provided by Crossref: 2020,
+     *  OpenAIRE will set as date 2019-02-03, because it’s the most recent among the complete and well-formed dates.
+     *  If then the repository updates the metadata and set a complete date (e.g. 2020-02-12), then this will be the new
+     *  date for the result because it becomes the most recent most complete date.
+     *  However, if OpenAIRE then collects the pre-print from another repository with date 2019-02-03, then this will be
+     *  the “winning date” because it becomes the most frequent well-formatted date.
+     */
+    private String publicationdate; // dateofacceptance
+
+    /**
+     * The name of the entity that holds, archives, publishes prints, distributes, releases, issues, or produces the resource.
+     */
+    private String publisher;
+
+    /**
+     * Date when the embargo ends and this result turns Open Access
+     */
+    private String embargoenddate;
+
+    /**
+     *  See definition of Dublin Core field dc:source
+     */
+    private List<String> source;
+
+    private List<String> format;
+
+    /**
+     * Contributors for the result
+     */
+    private List<String> contributor;
+
+    private List<String> coverage;
+
+    /**
+     * The openest of the access rights of this result.
+     */
+    private BestAccessRight bestaccessright;
+
+    /**
+     * The direct link to the full-text as collected from the data source
+     */
+    private List<String> fulltext;
+
+    /**
+     * Journal has information about the conference or journal where the result has been presented or published
+     */
+    private Journal journal;
+
+    /**
+     * Only for results with type 'software': URL to the software documentation
+     */
+    private List<String> documentationUrl; // software
+
+    /**
+     * Only for results with type 'software': the URL to the repository with the source code
+     */
+    private String codeRepositoryUrl; // software
+
+    /**
+     * Only for results with type 'software': the programming language
+     */
+    private String programmingLanguage; // software
+
+    /**
+     * Only for results with type 'software': Information on the person responsible for providing further information regarding the resource
+     */
+    private List<String> contactperson; // orp
+
+    /**
+     * Only for results with type 'software': Information on the group responsible for providing further information regarding the resource
+     */
+    private List<String> contactgroup; // orp
+
+    /**
+     * Only for results with type 'other': tool useful for the interpretation and/or re-used of the research product
+     */
+    private List<String> tool; // orp
+
+    /**
+     * Only for results with type 'dataset': the declared size of the dataset
+     */
+    private String size; // dataset
+
+    /**
+     * Version of the result
+     */
+    private String version; // dataset
+
+    @JsonProperty("isGreen")
+    private Boolean isGreen;
+
+    private OpenAccessColor openAccessColor;
+
+    @JsonProperty("isInDiamondJournal")
+    private Boolean isInDiamondJournal;
+
+    private Boolean publiclyFunded;
+
+    private String transformativeAgreement;
+
+    /**
+     * Each instance is one specific materialisation or version of the result. For example, you can have one result with
+     * three instance: one is the pre-print, one is the post-print, one is te published version
+     */
+    private List<Instance> instance;
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/SolrRecord.java

@@ -0,0 +1,41 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class SolrRecord implements Serializable {
+
+    private SolrRecordHeader header;
+
+    private List<Provenance> collectedfrom;
+
+    /**
+     * List of persistent identifiers
+     */
+    private List<Pid> pid;
+
+    private List<Context> context;
+
+    /**
+     * EOSC Interoperability Framework Guidelines
+     */
+    private List<EoscIfGuidelines> eoscifguidelines;
+
+    private List<Measure> measures;
+
+
+    private List<ExtraInfo> extraInfo;
+
+
+    private Result result;
+
+    private Datasource datasource;
+
+    private Project project;
+
+    private Organization organization;
+
+    private List<RelatedRecord> links;
+
+
+}

src/main/java/eu/dnetlib/dhp/schema/solr/SolrRecordHeader.java

@@ -0,0 +1,40 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class SolrRecordHeader implements Serializable {
+
+    /**
+     * The OpenAIRE identifiers for this record
+     */
+    private String id;
+
+    /**
+     * Identifiers of the record at the original sources
+     */
+    private List<String> originalId;
+
+    public static SolrRecordHeader newInstance(String id, List<String> originalId) {
+        SolrRecordHeader header = new SolrRecordHeader();
+        header.setId(id);
+        header.setOriginalId(originalId);
+        return header;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public List<String> getOriginalId() {
+        return originalId;
+    }
+
+    public void setOriginalId(List<String> originalId) {
+        this.originalId = originalId;
+    }
+}

src/main/java/eu/dnetlib/dhp/schema/solr/Subject.java

@@ -0,0 +1,26 @@
+package eu.dnetlib.dhp.schema.solr;
+
+import java.io.Serializable;
+
+public class Subject implements Serializable {
+
+    private String value;
+
+    private String type;
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+}