<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://namespace.openaire.eu/oaf"
  targetNamespace="http://namespace.openaire.eu/oaf" elementFormDefault="unqualified">

  <xs:annotation>
    <xs:documentation>This schema describes elements and properties of OpenAIRE+ entities of type
      datasource</xs:documentation>
  </xs:annotation>

  <xs:include schemaLocation="oaf-common-0.1.xsd"/>

  <xs:element name="datasource">
    <xs:complexType>
      <xs:choice maxOccurs="unbounded">
        <xs:annotation>
          <xs:documentation>Elements whose names start with "od" contain original values collected
            from OpenDOAR.</xs:documentation>
        </xs:annotation>
        <xs:element name="officialname" type="xs:string"/>
        <xs:element name="englishname" type="xs:string"/>
        <xs:element name="websiteurl" type="xs:string"/>
        <xs:element name="contactemail" type="xs:string"/>
        <xs:element name="accessinfopackage" type="xs:string">
          <xs:annotation>
            <xs:documentation>Info about how to access content of this
              datasource.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="namespaceprefix" type="xs:string"/>
        <xs:element name="datasourcetypeui" type="classedSchemedElement">
          <xs:annotation>
            <xs:documentation>Typology of this data source to be dispalyed in the OpenAire portal.
            </xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="datasourcetype" type="classedSchemedElement">
          <xs:annotation>
            <xs:documentation>Typology of this data source.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="openairecompatibility" type="classedSchemedElement">
          <xs:annotation>
            <xs:documentation>Level of compatibility of this datasources with regards to the
              guidelines.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="latitude" type="xs:string" minOccurs="0"/>
        <xs:element name="longitude" type="xs:string" minOccurs="0"/>
        <xs:element name="dateofvalidation" type="xs:string">
          <xs:annotation>
            <xs:documentation>When this datasource has been validated by the OpenAire
              Validator.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="description" type="xs:string"/>
        <xs:element name="subjects" type="optionalClassedSchemedElement"/>
        <xs:element name="policies" type="namedIdElement"/>
        <xs:element name="logourl" type="xs:string"/>
        <xs:element name="releasestartdate" type="xs:string"/>
        <xs:element name="releaseenddate" type="xs:string"/>
        <xs:element name="missionstatementurl" type="xs:string"/>
        <xs:element name="dataprovider" type="xs:boolean">
          <xs:annotation>
            <xs:documentation>True if this datasource is a data provider.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="serviceprovider" type="xs:boolean">
          <xs:annotation>
            <xs:documentation>True if this datasource is a service provider.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="databaseaccesstype" type="xs:string"> </xs:element>
        <xs:element name="datauploadtype" type="xs:string"/>
        <xs:element name="databaseaccessrestriction" type="xs:string"/>
        <xs:element name="datauploadrestriction" type="xs:string"/>
        <xs:element name="versioning" type="xs:boolean"/>
        <xs:element name="citationguidelineurl" type="xs:string"/>
        <xs:element name="qualitymanagementkind" type="xs:string"/>
        <xs:element name="pidsystems" type="xs:string"/>
        <xs:element name="certificates" type="xs:string"/>
        <xs:element name="originalId" type="xs:string"/>
        <xs:element name="collectedfrom" type="namedIdElement">
          <xs:annotation>
            <xs:documentation>Identifier and name of the datasource from which this datasource has
              been collected from (e.g., "OpenDOAR").</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="pid" type="xs:string"/>
        <xs:element name="datainfo" type="datainfoType">
          <xs:annotation>
            <xs:documentation>Information about the provenance of this record.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="rels" type="relsType">
          <xs:annotation>
            <xs:documentation>Relationships to other entities.</xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="children">
          <xs:complexType mixed="true"/>
        </xs:element>
        <xs:element name="odnumberofitems" type="xs:string">
          <xs:annotation>
            <xs:documentation>Number of items delivered by this datasource according to the
              information available on OpenDOAR. </xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="odnumberofitemsdate" type="xs:string">
          <xs:annotation>
            <xs:documentation>When the number of items in odnumberofitems has been set according to
              the information available on OpenDOAR. </xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="odlanguages" type="xs:string">
          <xs:annotation>
            <xs:documentation>Languages supported by this datasource according to the information
              available on OpenDOAR. </xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="odcontenttypes" type="xs:string">
          <xs:annotation>
            <xs:documentation>Types of content delivered by this datasource according to the
              information available on OpenDOAR. </xs:documentation>
          </xs:annotation>
        </xs:element>
        <xs:element name="odpolicies" type="xs:string">
          <xs:annotation>
            <xs:documentation>Policies of this datasource according to the information available on
              OpenDOAR. </xs:documentation>
          </xs:annotation>
        </xs:element>
      </xs:choice>
    </xs:complexType>
  </xs:element>
</xs:schema>