Java tutorial
/* ************************************************************************ ******************* CANADIAN ASTRONOMY DATA CENTRE ******************* ************** CENTRE CANADIEN DE DONNES ASTRONOMIQUES ************** * * (c) 2009. (c) 2009. * Government of Canada Gouvernement du Canada * National Research Council Conseil national de recherches * Ottawa, Canada, K1A 0R6 Ottawa, Canada, K1A 0R6 * All rights reserved Tous droits rservs * * NRC disclaims any warranties, Le CNRC dnie toute garantie * expressed, implied, or nonce, implicite ou lgale, * statutory, of any kind with de quelque nature que ce * respect to the software, soit, concernant le logiciel, * including without limitation y compris sans restriction * any warranty of merchantability toute garantie de valeur * or fitness for a particular marchande ou de pertinence * purpose. NRC shall not be pour un usage particulier. * liable in any event for any Le CNRC ne pourra en aucun cas * damages, whether direct or tre tenu responsable de tout * indirect, special or general, dommage, direct ou indirect, * consequential or incidental, particulier ou gnral, * arising from the use of the accessoire ou fortuit, rsultant * software. Neither the name de l'utilisation du logiciel. Ni * of the National Research le nom du Conseil National de * Council of Canada nor the Recherches du Canada ni les noms * names of its contributors may de ses participants ne peuvent * be used to endorse or promote tre utiliss pour approuver ou * products derived from this promouvoir les produits drivs * software without specific prior de ce logiciel sans autorisation * written permission. pralable et particulire * par crit. * * This file is part of the Ce fichier fait partie du projet * OpenCADC project. OpenCADC. * * OpenCADC is free software: OpenCADC est un logiciel libre ; * you can redistribute it and/or vous pouvez le redistribuer ou le * modify it under the terms of modifier suivant les termes de * the GNU Affero General Public la GNU Affero General Public * License as published by the License? telle que publie * Free Software Foundation, par la Free Software Foundation * either version 3 of the : soit la version 3 de cette * License, or (at your option) licence, soit ( votre gr) * any later version. toute version ultrieure. * * OpenCADC is distributed in the OpenCADC est distribu * hope that it will be useful, dans lespoir quil vous * but WITHOUT ANY WARRANTY; sera utile, mais SANS AUCUNE * without even the implied GARANTIE : sans mme la garantie * warranty of MERCHANTABILITY implicite de COMMERCIALISABILIT * or FITNESS FOR A PARTICULAR ni dADQUATION UN OBJECTIF * PURPOSE. See the GNU Affero PARTICULIER. Consultez la Licence * General Public License for Gnrale Publique GNU Affero * more details. pour plus de dtails. * * You should have received Vous devriez avoir reu une * a copy of the GNU Affero copie de la Licence Gnrale * General Public License along Publique GNU Affero avec * with OpenCADC. If not, see OpenCADC ; si ce nest * <http://www.gnu.org/licenses/>. pas le cas, consultez : * <http://www.gnu.org/licenses/>. * * $Revision: 4 $ * ************************************************************************ */ package ca.nrc.cadc.vos; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.Writer; import org.apache.log4j.Logger; import org.jdom2.Document; import org.jdom2.Element; import org.jdom2.output.Format; import org.jdom2.output.XMLOutputter; /** * Writes a Transfer as XML to an output. * * @author Sailor Zhang */ public class TransferWriter { @SuppressWarnings("unused") private static Logger log = Logger.getLogger(TransferWriter.class); public TransferWriter() { } /** * Write the transfer to an OutputStream. * * @param trans * @param out OutputStream to write to. * @throws IOException if the writer fails to write. */ public void write(Transfer trans, OutputStream out) throws IOException { write(trans, new OutputStreamWriter(out)); } /** * Write the transfer to a writer. * * @param trans * @param writer Writer to write to. * @throws IOException if the writer fails to write. */ public void write(Transfer trans, Writer writer) throws IOException { Element root = buildRoot(trans); write(root, writer); } /** * Build root element for the transfer. * @param transfer * @return root element */ private Element buildRoot(Transfer transfer) { Element root = new Element("transfer", TransferReader.VOS_NS); root.addNamespaceDeclaration(TransferReader.VOS_NS); Element e = null; e = new Element("target", TransferReader.VOS_NS); e.addContent(transfer.getTarget().getURIObject().toASCIIString()); root.addContent(e); e = new Element("direction", TransferReader.VOS_NS); e.addContent(transfer.getDirection().getValue()); root.addContent(e); e = new Element("view", TransferReader.VOS_NS); if (transfer.getView() != null) { e.setAttribute("uri", transfer.getView().getURI().toString()); for (View.Parameter param : transfer.getView().getParameters()) { Element pm = new Element("param", TransferReader.VOS_NS); pm.setAttribute("uri", param.getUri().toString()); pm.setText(param.getValue()); e.addContent(pm); } root.addContent(e); } if (transfer.getProtocols() != null) { for (Protocol protocol : transfer.getProtocols()) { Element pr = new Element("protocol", TransferReader.VOS_NS); pr.setAttribute("uri", protocol.getUri()); if (protocol.getEndpoint() != null) { Element ep = new Element("endpoint", TransferReader.VOS_NS); ep.addContent(protocol.getEndpoint()); pr.addContent(ep); } root.addContent(pr); } } e = new Element("keepBytes", TransferReader.VOS_NS); e.addContent(new Boolean(transfer.isKeepBytes()).toString()); root.addContent(e); return root; } /** * Write to root Element to a writer. * * @param root Root Element to write. * @param writer Writer to write to. * @throws IOException if the writer fails to write. */ @SuppressWarnings("unchecked") protected void write(Element root, Writer writer) throws IOException { XMLOutputter outputter = new XMLOutputter(); outputter.setFormat(Format.getPrettyFormat()); Document document = new Document(root); outputter.output(document, writer); } }