Metacat

package edu.ucsb.nceas.metacat.index.annotation;

import java.io.File;

import com.hp.hpl.jena.query.Dataset;

import com.hp.hpl.jena.tdb.TDBFactory;

public class TripleStoreService {

	private static TripleStoreService instance;

	private TripleStoreService() {}

	public static TripleStoreService getInstance() {

		if (instance == null) {

			instance = new TripleStoreService();

		}

		return instance;

	}

	public Dataset getDataset() {

		String directory = "./tdb";

    	// for testing, delete the triplestore each time

    	File dir = new File(directory);

//    	if (dir.exists()) {

//    		dir.delete();

//    	}

		Dataset dataset = TDBFactory.createDataset(directory);

		return dataset;

	}

}

package edu.ucsb.nceas.metacat.index.annotation;

import java.util.List;

import javax.xml.xpath.XPath;

import org.dataone.cn.indexer.parser.ISolrField;

import org.dataone.cn.indexer.solrhttp.SolrElementField;

import org.w3c.dom.Document;

public class SparqlField implements ISolrField {

	private String name;

	private String query;

	public SparqlField(String name, String query) {

		this.name = name;

		this.query = query;

	}

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public String getQuery() {

		return query;

	}

	public void setQuery(String query) {

		this.query = query;

	}

	@Override

	public List<SolrElementField> getFields(Document arg0, String arg1)

			throws Exception {

		// TODO Auto-generated method stub

		return null;

	}

	@Override

	public void initExpression(XPath arg0) {

		// TODO Auto-generated method stub

	}

}

<beans xmlns="http://www.springframework.org/schema/beans"

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

	xmlns:p="http://www.springframework.org/schema/p"

	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

	<bean id="rdfXmlSubprocessor" class="edu.ucsb.nceas.metacat.index.annotation.RdfXmlSubprocessor">

		<property name="matchDocument"

			value="/d200:systemMetadata/formatId[text()='http://www.w3.org/TR/rdf-syntax-grammar']" />

		<property name="fieldList">

			<list>

				<ref bean="annotation.measurement" />

			</list>

		</property>	

	</bean>

	<bean id="annotation.measurement" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

		<constructor-arg name="name" value="measurement_sm" />

		<constructor-arg name="query">

			<value>

				<![CDATA[

				PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 

				PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 

				PREFIX owl: <http://www.w3.org/2002/07/owl#> 

				PREFIX oboe-core: <http://ecoinformatics.org/oboe/oboe.1.0/oboe-core.owl#> 

				PREFIX ao: <http://purl.org/ao/>

				PREFIX dcterms: <http://purl.org/dc/terms/>

				PREFIX pav: <http://purl.org/pav/>

				PREFIX foaf: <http://xmlns.com/foaf/0.1/>

				SELECT ?measurement_sm ?pid

				FROM <$GRAPH_NAME>

				WHERE { 

						?measurement_sm rdf:type oboe-core:Measurement .

						?measurement_sm rdf:type ?restriction .

						?restriction owl:onProperty oboe-core:ofCharacteristic .

						?restriction owl:allValuesFrom ?characteristic .

						?characteristic rdfs:subClassOf+ ?allChar .

						?allChar rdfs:subClassOf oboe-core:Characteristic .

						OPTIONAL { 

							?measurement_sm rdf:type ?restriction2 .

							?restriction2 owl:onProperty oboe-core:usesStandard .

							?restriction2 owl:allValuesFrom ?standard .

						}

						?annotation ao:context ?measurement_sm .

						?annotation ao:annotatesResource ?metadata .

						?metadata dcterms:identifier ?pid . 

						?annotation pav:createdBy ?person .

						?person foaf:name ?name .

						?annotation pav:createdOn ?date .

				 	} 

				 ]]>

			</value>

		</constructor-arg>

		<!--property name="multivalue" value="false" /-->

	</bean>

</beans>

import java.net.URISyntaxException;

	<bean id="annotation.standard" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

	<bean id="annotation.characteristic" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

	<bean id="annotation.creator" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

	<bean id="prov.wasDerivedFrom" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

	<bean id="prov.wasGeneratedBy" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

	<bean id="prov.wasInformedBy" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

	<bean id="prov.used" class="edu.ucsb.nceas.metacat.index.annotation.SparqlField">

    <import resource="application-context-annotator.xml" />

    <!-- <import resource="application-context-ao.xml" /> -->

	<bean id="annotatorSubprocessor" class="org.dataone.cn.indexer.annotation.AnnotatorSubprocessor"/>

	<!-- no params needed for this processor yet -->