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/**
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* Copyright (C) 2009 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.ext.bci;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.util.ArrayList;
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import java.util.List;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.parsers.SAXParser;
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import javax.xml.parsers.SAXParserFactory;
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import org.xml.sax.Attributes;
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import org.xml.sax.SAXException;
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import org.xml.sax.helpers.DefaultHandler;
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import eu.etaxonomy.cdm.ext.common.SchemaAdapterBase;
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import eu.etaxonomy.cdm.model.agent.Team;
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import eu.etaxonomy.cdm.model.agent.TeamOrPersonBase;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.reference.ReferenceFactory;
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import eu.etaxonomy.cdm.strategy.parser.TimePeriodParser;
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/**
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* @author a.kohlbecker
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* @date 25.08.2010
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*/
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public class BciSchemaAdapter extends SchemaAdapterBase<Reference>{
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static URI identifier = null;
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static String nameSpace = "http://purl.org/dc/elements/1.1/";
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static {
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try {
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identifier = new URI("info:srw/schema/1/dc-v1.1");
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} catch (URISyntaxException e) {
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// should never happen
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.ext.schema.SchemaAdapter#getIdentifier()
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*/
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@Override
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public URI getIdentifier() {
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return identifier;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.ext.schema.SchemaAdapter#getShortName()
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*/
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@Override
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public String getShortName() {
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return "dc";
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.ext.schema.SchemaAdapter#getCmdEntities(java.io.Reader)
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*/
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@Override
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public List<Reference> getCmdEntities(InputStream inputStream) {
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SAXParserFactory factory = SAXParserFactory.newInstance();
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factory.setNamespaceAware(true);
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SAXParser parser = null;
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try {
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parser = factory.newSAXParser();
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} catch (ParserConfigurationException e) {
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logger.error(e);
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} catch (SAXException e) {
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logger.error(e);
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}
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DcSaxHandler handler = new DcSaxHandler();
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try {
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if(parser != null){
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parser.parse(inputStream, handler);
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} else {
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logger.error("parser is null");
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}
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} catch (SAXException e) {
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logger.error(e);
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} catch (IOException e) {
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logger.error(e);
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}
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return handler.referenceList;
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}
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class DcSaxHandler extends DefaultHandler {
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private static final String DC_DC = "dc:dc";
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private static final String DC_TITLE = "dc:title";
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private static final String DC_CREATOR = "dc:creator";
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private static final String DC_PUBLISHER = "dc:publisher";
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private static final String DC_DATE = "dc:date";
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List<Reference> referenceList = new ArrayList<Reference>();
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Reference reference = null;
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String dcFieldName = null;
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@Override
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public void startElement(String uri, String localName,
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String qName, Attributes attributes) throws SAXException {
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if (uri.equals(nameSpace)) {
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logger.debug("Start Element :" + qName + "; " + uri);
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if (qName.equals(DC_DC)) {
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reference = ReferenceFactory.newGeneric();
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} else {
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dcFieldName = qName;
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}
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}
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}
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@Override
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public void endElement(String uri, String localName, String qName)
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throws SAXException {
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if (uri.equals(nameSpace)) {
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if(reference != null) {
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logger.debug("End Element :" + qName + "; " + uri);
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if (qName.equals(DC_DC)) {
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referenceList.add(reference);
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reference = null;
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} else {
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dcFieldName = null;
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}
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}
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}
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}
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@Override
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public void characters(char ch[], int start, int length)
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throws SAXException {
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if(reference != null && dcFieldName != null){
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String text = new String(ch, start, length);
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logger.debug("Characters : " + text);
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if(dcFieldName.equals(DC_TITLE)){
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reference.setTitleCache(text, true);
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}
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if(dcFieldName.equals(DC_DATE)){
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reference.setDatePublished(TimePeriodParser.parseString(text));
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}
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if(dcFieldName.equals(DC_PUBLISHER)){
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reference.setPublisher(text);
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}
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if(dcFieldName.equals(DC_CREATOR)){
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TeamOrPersonBase authorship = new Team();
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authorship.setTitleCache(text, true);
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reference.setAuthorship(authorship);
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}
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}
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}
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}
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}
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