oscar.oscarMessenger.docxfer.util.MsgCommxml.java Source code

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Here is the source code for oscar.oscarMessenger.docxfer.util.MsgCommxml.java

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/**
 * Copyright (c) 2001-2002. Department of Family Medicine, McMaster University. All Rights Reserved.
 * This software is published under the GPL GNU General Public License.
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. 
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * This software was written for the
 * Department of Family Medicine
 * McMaster University
 * Hamilton
 * Ontario, Canada
 */

package oscar.oscarMessenger.docxfer.util;

import java.io.StringReader;
import java.io.StringWriter;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.apache.commons.codec.binary.Base64;
import org.oscarehr.util.MiscUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;

public class MsgCommxml {
    public static Document newDocument() {
        try {
            return DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
        } catch (Exception e) {
            return null;
        }
    }

    public static Element addNode(Node parentNode, String name) {
        return addNode(parentNode, name, null);
    }

    public static Element addNode(Node parentNode, String name, String value) {
        Element node = null;

        if (parentNode.getNodeType() == Node.DOCUMENT_NODE) {
            node = ((Document) parentNode).createElement(name);
        } else {
            node = parentNode.getOwnerDocument().createElement(name);
        }

        if (value != null) {
            node.appendChild(node.getOwnerDocument().createTextNode(value));
        }

        return (Element) parentNode.appendChild(node);
    }

    public static String toXML(Node xmlDoc) {
        StringWriter ret = new StringWriter();

        DOMSource src = new DOMSource(xmlDoc);
        StreamResult rslt = new StreamResult(ret);

        try {
            Transformer trans = TransformerFactory.newInstance().newTransformer();
            trans.transform(src, rslt);
        } catch (Exception e) {
            MiscUtils.getLogger().error("Error", e);
        }

        return ret.toString();
    }

    public static Document parseXML(String xmlInput) {
        try {
            InputSource is = new InputSource(new StringReader(xmlInput));

            Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(is);

            return doc;
        } catch (Exception e) {
            return null;
        }
    }

    public static Document parseXMLFile(String fileName) throws java.io.FileNotFoundException,
            javax.xml.parsers.ParserConfigurationException, java.io.IOException, org.xml.sax.SAXException {
        InputSource is = new InputSource(new java.io.FileReader(fileName));

        Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(is);

        return doc;
    }

    public static String getText(Node node) {
        String ret = "";

        if (node.hasChildNodes()) {
            int i;
            for (i = 0; i < node.getChildNodes().getLength(); i++) {
                Node sub = node.getChildNodes().item(i);

                if (sub.getNodeType() == Node.TEXT_NODE) {
                    if (sub.getNodeValue() != null) {
                        ret += sub.getNodeValue();
                    }
                }
            }
        }

        return ret;
    }

    public static String encode64(String plainText) {
        return (new String(Base64.encodeBase64(plainText.getBytes())));
    }

    public static String decode64(String encodedText) {
        return (new String(Base64.decodeBase64(encodedText.getBytes())));
    }
}