MDTestSupport.java

package org.geoserver.csw.records.iso;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.xml.XMLConstants;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;

import org.custommonkey.xmlunit.SimpleNamespaceContext;
import org.custommonkey.xmlunit.XMLUnit;
import org.geoserver.csw.store.internal.CSWInternalTestSupport;
import org.geotools.csw.CSW;
import org.geotools.filter.v1_1.OGC;
import org.geotools.ows.OWS;
import org.geotools.xlink.XLINK;
import org.junit.BeforeClass;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

/**
 * 
 * @author Niels Charlier
 * 
 */
public class MDTestSupport extends CSWInternalTestSupport {
    
    @BeforeClass
    public static void configureXMLUnit() throws Exception {
        // init xmlunit
        Map<String, String> namespaces = new HashMap<String, String>();
        namespaces.put("csw", CSW.NAMESPACE);
        namespaces.put("ows", OWS.NAMESPACE);
        namespaces.put("ogc", OGC.NAMESPACE);
        namespaces.put("gml", "http://www.opengis.net/gml");
        namespaces.put("xlink", XLINK.NAMESPACE);
        namespaces.put("xsi", "http://www.w3.org/2001/XMLSchema-instance");
        namespaces.put("xsd", "http://www.w3.org/2001/XMLSchema");
        namespaces.put("xs", "http://www.w3.org/2001/XMLSchema");
        namespaces.put("gmd", MetaDataDescriptor.NAMESPACE_GMD);
        namespaces.put("gco", MetaDataDescriptor.NAMESPACE_GCO);

        XMLUnit.setXpathNamespaceContext(new SimpleNamespaceContext(namespaces));
    };

    //Lazy Loading.
    private  static Validator validator;
    
    protected static Validator getValidator() {
        if (validator == null) {
            SchemaFactory factory = 
                SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
            Schema schema;
            try {
                schema = factory.newSchema(new StreamSource(MDTestSupport.class.getResource("/net/opengis/schemas/iso/19139/20070417/gmd/metadataEntity.xsd").toString()));
            } catch (SAXException e) {
                throw new RuntimeException(e);
            }    
            validator = schema.newValidator();
        }
        return validator;
    }
    
    protected static void validateSchema(NodeList xml) throws SAXException, IOException {
        
        for (int i=0; i < xml.getLength(); i++) {
            getValidator().validate(new DOMSource(xml.item(i)));
        }
    }


}