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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.openurl;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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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.InputSource;
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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.common.URI;
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import eu.etaxonomy.cdm.ext.common.SchemaAdapterBase;
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import eu.etaxonomy.cdm.model.agent.Person;
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import eu.etaxonomy.cdm.model.agent.Team;
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import eu.etaxonomy.cdm.model.common.VerbatimTimePeriod;
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import eu.etaxonomy.cdm.model.reference.Reference;
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/**
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* @author a.kohlbecker
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* @since 25.08.2010
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*/
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public class MobotOpenUrlResponseSchemaAdapter extends SchemaAdapterBase<Reference>{
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static URI identifier = null;
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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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@Override
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public String getShortName() {
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return "MOBOT.OpenUrl.Utilities.OpenUrlResponse";
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}
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@Override
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public List<Reference> getCmdEntities(InputStream inputStream) throws IOException {
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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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OpenUrlResponseHandler handler = new OpenUrlResponseHandler();
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try {
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if(parser != null){
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Reader reader = new InputStreamReader(inputStream, "UTF-8");
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InputSource inputSource = new InputSource(reader);
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parser.parse(inputSource, handler);
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if(handler.status != ResponseStatus.Success){
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throw new IOException("MOBOT.OpenUrl.Utilities.OpenUrlResponse - Status:" + handler.status.toString() + (handler.message != null ? handler.message : ""));
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}
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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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}
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return handler.referenceList;
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}
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class OpenUrlResponseHandler extends DefaultHandler {
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/*
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* Fields of OpenUrlResponse
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* see http://code.google.com/p/bhl-bits/source/browse/trunk/portal/OpenUrlUtilities/OpenUrlResponse.cs
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*/
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private static final String OPENURL_RESPONSE = "OpenUrlResponse";
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private static final String STATUS = "Status";
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private static final String MESSAGE = "Message";
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private static final String CITATIONS = "citations";
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private static final String OPENURL_RESPONSE_CITATION = "OpenUrlResponseCitation";
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/*
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* Fields of OpenUrlResponseCitation
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* see http://code.google.com/p/bhl-bits/source/browse/trunk/portal/OpenUrlUtilities/OpenUrlResponseCitation.cs
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*/
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/**
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* references the specific page in the title
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*/
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private static final String URL = "Url";
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/**
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* references the according entry in the bibliography
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*/
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private static final String ITEM_URL = "ItemUrl";
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/**
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* references the specific book or journal, that is to the front page
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*/
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private static final String TITLE_URL = "TitleUrl";
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private static final String TITLE = "Title";
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private static final String STITLE = "STitle";
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/**
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* seems to contain the type of the reference : book
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*/
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private static final String GENRE = "Genre";
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private static final String AUTHORS = "Authors";
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private static final String SUBJECTS = "Subjects";
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private static final String PUBLISHER_NAME = "PublisherName";
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private static final String PUBLISHER_PLACE = "PublisherPlace";
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private static final String DATE = "Date";
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private static final String VOLUME = "Volume";
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private static final String EDITION = "Edition";
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private static final String PUBLICATION_FREQUENCY = "PublicationFrequency";
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private static final String LANGUAGE = "Language";
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private static final String OCLC = "Oclc";
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private static final String LCCN = "Lccn";
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private static final String ISSN = "Issn";
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private static final String ATITLE = "ATitle";
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private static final String SPAGE = "SPage";
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private static final String EPAGE = "EPage";
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private static final String PAGES = "Pages";
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List<Reference> referenceList = new ArrayList<>();
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OpenUrlReference reference = null;
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ResponseStatus status = null;
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Team authorship = null;
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String message = null;
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String elementName = null;
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private String elementNameToStore;
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private StringBuilder textBuffer = new StringBuilder();
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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 (qName.equals(OPENURL_RESPONSE)) {
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logger.debug("Start " + OPENURL_RESPONSE + "; ");
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status = ResponseStatus.Undefined; // indicates that the OPENURL_RESPONSE element has ben detected
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} else if (status != null && qName.equals(OPENURL_RESPONSE_CITATION)) {
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reference = new OpenUrlReference();
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} else if (reference != null && qName.equals(AUTHORS)) {
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authorship = Team.NewInstance();
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} else if (reference != null && qName.equals(SUBJECTS)) {
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//TODO implement, but no equivalent in the cdm model
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} else {
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elementName = qName;
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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) throws SAXException {
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if (qName.equals(OPENURL_RESPONSE)) {
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} else if (qName.equals(OPENURL_RESPONSE_CITATION)) {
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referenceList.add(reference);
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reference = null;
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} else if (reference != null && qName.equals(AUTHORS)) {
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reference.setAuthorship(authorship);
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authorship = null;
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} else if (reference != null && qName.equals(SUBJECTS)) {
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//TODO implement, but no equivalent in the cdm model
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}else {
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elementNameToStore = elementName;
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elementName = null;
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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(elementNameToStore == null){
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textBuffer.append(new String(ch, start, length));
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} else {
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logger.debug("Characters [" + elementNameToStore + "]: " + textBuffer);
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String trimmedText = textBuffer.toString().trim();
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// empty the text buffer
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textBuffer.delete(0, textBuffer.length());
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// --- Reference --- //
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if(reference != null){
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if(elementNameToStore.equals(URL)){
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try {
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reference.setUri(new URI(trimmedText));
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} catch (URISyntaxException e) {
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logger.warn(e.getMessage());
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}
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}
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if(elementNameToStore.equals(ITEM_URL)){
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try {
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reference.setItemUri(new URI(trimmedText));
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} catch (URISyntaxException e) {
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logger.warn(e.getMessage());
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}
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}
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if(elementNameToStore.equals(TITLE_URL)){
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try {
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reference.setTitleUri(new URI(trimmedText));
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} catch (URISyntaxException e) {
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logger.warn(e.getMessage());
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}
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}
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if(elementNameToStore.equals(TITLE)){
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reference.setTitleCache(trimmedText, true);
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}
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if(elementNameToStore.equals(STITLE)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(ATITLE)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(PUBLISHER_NAME)){
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reference.setPublisher(trimmedText);
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}
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if(elementNameToStore.equals(PUBLISHER_PLACE)){
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reference.setPlacePublished(trimmedText);
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}
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if(elementNameToStore.equals(DATE)){
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/* may be a single year or a range of years 1797-1830 */
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Integer startYear = null;
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Integer endYear = null;
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if(trimmedText.length() == 9 && trimmedText.indexOf("-") == 4){
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try {
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startYear = Integer.valueOf(trimmedText.substring(0, 4));
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endYear = Integer.valueOf(trimmedText.substring(5));
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reference.setDatePublished(VerbatimTimePeriod.NewVerbatimInstance(startYear, endYear));
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} catch (NumberFormatException e) {
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logger.error("date can not be parsed: "+ trimmedText);
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}
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} else if(trimmedText.length() == 4) {
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try {
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startYear = Integer.valueOf(trimmedText);
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} catch (NumberFormatException e) {
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logger.error("date can not be parsed: "+ trimmedText);
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}
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reference.setDatePublished(VerbatimTimePeriod.NewVerbatimInstance(startYear));
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}
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}
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if(elementNameToStore.equals(VOLUME)){
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reference.setVolume(trimmedText);
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}
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if(elementNameToStore.equals(EDITION)){
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reference.setEdition(trimmedText);
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}
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if(elementNameToStore.equals(SPAGE)){
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reference.setPages(trimmedText);
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}
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if(elementNameToStore.equals(EPAGE)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(PAGES)){
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// IGNORE we rather need the start page value SPAGE
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}
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if(elementNameToStore.equals(PUBLICATION_FREQUENCY)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(LANGUAGE)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(OCLC)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(LCCN)){
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logger.debug(elementNameToStore + " not yet implemented!");//TODO
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}
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if(elementNameToStore.equals(ISSN)){
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reference.setIssn(trimmedText);
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}
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}
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// --- Reference.authorship --- //
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if(authorship != null && reference != null){
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if(elementNameToStore.equals("String")){
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authorship.addTeamMember(Person.NewTitledInstance(trimmedText));
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}
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}
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// openUrlResponse //
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if(reference == null){
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if(elementNameToStore.equals(STATUS)){
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status = ResponseStatus.valueOf(trimmedText);
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}
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}
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elementNameToStore = null;
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}
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}
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}
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/**
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* @see http://code.google.com/p/bhl-bits/source/browse/trunk/portal/OpenUrlUtilities/IOpenUrlResponse.cs
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*/
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public enum ResponseStatus {
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Undefined, // Query not submitted
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Success, Error
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}
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}
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