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.vosi; import java.text.DateFormat; import java.text.ParseException; import java.util.Date; import ca.nrc.cadc.util.StringBuilderWriter; import org.jdom2.Document; import org.jdom2.Element; import org.jdom2.Namespace; import ca.nrc.cadc.date.DateUtil; import ca.nrc.cadc.vosi.util.Util; /** * @author zhangsa * */ public class Availability { private AvailabilityStatus _status; public Availability(AvailabilityStatus status) { super(); if (status == null) throw new IllegalArgumentException("Availability Status is null."); _status = status; } public Availability(Document xml) { super(); if (xml == null) throw new IllegalArgumentException("Document is null."); try { _status = fromXmlDocument(xml); } catch (ParseException e) { throw new IllegalStateException("Invalid date format in XML", e); } } public Document toXmlDocument() { DateFormat df = DateUtil.getDateFormat(DateUtil.IVOA_DATE_FORMAT, DateUtil.UTC); Namespace vosi = Namespace.getNamespace("vosi", VOSI.AVAILABILITY_NS_URI); Element eleAvailability = new Element("availability", vosi); Util.addChild(eleAvailability, vosi, "available", Boolean.toString(_status.isAvailable())); if (_status.getUpSince() != null) Util.addChild(eleAvailability, vosi, "upSince", df.format(_status.getUpSince())); if (_status.getDownAt() != null) Util.addChild(eleAvailability, vosi, "downAt", df.format(_status.getDownAt())); if (_status.getBackAt() != null) Util.addChild(eleAvailability, vosi, "backAt", df.format(_status.getBackAt())); if (_status.getNote() != null) Util.addChild(eleAvailability, vosi, "note", _status.getNote()); Document document = new Document(); document.addContent(eleAvailability); return document; } public AvailabilityStatus fromXmlDocument(Document doc) throws ParseException { Namespace vosi = Namespace.getNamespace("vosi", VOSI.AVAILABILITY_NS_URI); Element availability = doc.getRootElement(); if (!availability.getName().equals("availability")) throw new IllegalArgumentException("missing root element 'availability'"); Element elemAvailable = availability.getChild("available", vosi); if (elemAvailable == null) throw new IllegalArgumentException("missing element 'available'"); boolean available = elemAvailable.getText().equalsIgnoreCase("true"); DateFormat df = DateUtil.getDateFormat(DateUtil.IVOA_DATE_FORMAT, DateUtil.UTC); Element elemUpSince = availability.getChild("upSince", vosi); Element elemDownAt = availability.getChild("downAt", vosi); Element elemBackAt = availability.getChild("backAt", vosi); Element elemNote = availability.getChild("note", vosi); Date upSince = null; Date downAt = null; Date backAt = null; String note = null; if (elemUpSince != null) upSince = df.parse(elemUpSince.getText()); if (elemDownAt != null) downAt = df.parse(elemDownAt.getText()); if (elemBackAt != null) backAt = df.parse(elemBackAt.getText()); if (elemNote != null) note = elemNote.getText(); return new AvailabilityStatus(available, upSince, downAt, backAt, note); } public AvailabilityStatus getStatus() { return _status; } @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append("Availability["); sb.append("available=").append(_status.isAvailable()); if (_status.getUpSince() != null) sb.append(",upSince=").append(_status.getUpSince()); if (_status.getDownAt() != null) sb.append(",downAt=").append(_status.getDownAt()); if (_status.getBackAt() != null) sb.append(",backAt=").append(_status.getBackAt()); if (_status.getNote() != null) sb.append(",note=").append(_status.getNote()); sb.append("]"); return sb.toString(); } }