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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.jaxb;
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import java.io.StringReader;
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import java.io.StringWriter;
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import javax.xml.bind.annotation.adapters.XmlAdapter;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.transform.OutputKeys;
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import javax.xml.transform.Result;
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import javax.xml.transform.Source;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import org.apache.commons.lang.StringEscapeUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.w3c.dom.DOMException;
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import org.w3c.dom.Document;
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import org.w3c.dom.DocumentFragment;
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import org.w3c.dom.NamedNodeMap;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import org.xml.sax.InputSource;
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public class FormattedTextAdapter extends XmlAdapter<FormattedText,java.lang.String> {
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public static String[] NAMESPACE_PREFIXES = {"xmlns:common",
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"xmlns:agent",
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"xmlns:description",
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"xmlns:location",
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"xmlns:media",
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"xmlns:molecular",
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"xmlns:name",
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"xmlns:occurence",
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"xmlns:reference",
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"xmlns:taxon",
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"xmlns:view",
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"xmlns:xsi"};
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@SuppressWarnings("unused")
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private static final Log logger = LogFactory.getLog(FormattedTextAdapter.class);
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public FormattedText marshal(String string) throws Exception {
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if(string != null) {
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string = StringEscapeUtils.escapeXml(string);
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String documentString = "<?xml version=\"1.0\"?><text>" + string + "</text>";
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//log.debug("Parsing " + documentString);
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FormattedText text = new FormattedText();
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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DocumentBuilder parser = factory.newDocumentBuilder();
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Document document = parser.parse(new InputSource(new StringReader(documentString)));
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NodeList childNodes = document.getDocumentElement().getChildNodes();
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for(int i = 0; i < childNodes.getLength(); i++) {
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Node node = childNodes.item(i);
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if(node instanceof org.w3c.dom.Text ) {
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org.w3c.dom.Text textNode = (org.w3c.dom.Text) node;
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text.getContent().add(textNode.getTextContent());
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} else {
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text.getContent().add(node);
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}
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}
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return text;
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}
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return null;
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}
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public String unmarshal(FormattedText text) throws Exception {
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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Document document = factory.newDocumentBuilder().newDocument();
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DocumentFragment documentFragment = document.createDocumentFragment();
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for(Object object : text.getContent()) {
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if(object instanceof String) {
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String string = (String)object;
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documentFragment.appendChild(document.createTextNode(string));
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} else {
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Node node = (Node)object;
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NamedNodeMap attributes = node.getAttributes();
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for(String prefix : FormattedTextAdapter.NAMESPACE_PREFIXES) {
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try{
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attributes.removeNamedItem(prefix);
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} catch(DOMException de){
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if(de.code != DOMException.NOT_FOUND_ERR) {
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throw de;
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}
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}
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}
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documentFragment.appendChild(document.importNode(node,true));
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}
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}
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TransformerFactory transformerFactory = TransformerFactory.newInstance();
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Transformer transformer = transformerFactory.newTransformer();
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transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION , "yes");
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Source input = new DOMSource(documentFragment);
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StringWriter stringWriter = new StringWriter();
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Result output = new StreamResult(stringWriter);
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transformer.transform(input, output);
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String result = stringWriter.toString();
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result = StringEscapeUtils.unescapeXml(result);
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return result;
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}
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}
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