ca.nrc.cadc.caom2.xml.JsonWriter.java Source code

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/*
************************************************************************
*******************  CANADIAN ASTRONOMY DATA CENTRE  *******************
**************  CENTRE CANADIEN DE DONNES ASTRONOMIQUES  **************
*
*  (c) 2011.                            (c) 2011.
*  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: 5 $
*
************************************************************************
*/

package ca.nrc.cadc.caom2.xml;

import ca.nrc.cadc.xml.JsonOutputter;
import java.io.IOException;
import java.io.Serializable;
import java.io.Writer;
import org.apache.log4j.Logger;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.output.Format;

/**
 *
 * @author pdowler
 */
public class JsonWriter extends ObservationWriter implements Serializable {
    private static final long serialVersionUID = 20150205121500L;

    private static final Logger log = Logger.getLogger(JsonWriter.class);

    private boolean prettyPrint;

    public JsonWriter() {
        this(true);
    }

    public JsonWriter(boolean prettyPrint) {
        this(prettyPrint, XmlConstants.CAOM2_3_NAMESPACE);
    }

    public JsonWriter(boolean prettyPrint, String caom2Namespace) {
        super("caom2", caom2Namespace, false);
    }

    /**
     * Write the 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.
     */
    @Override
    protected void write(Element root, Writer writer) throws IOException {
        JsonOutputter outputter = new JsonOutputter();
        outputter.getListElementNames().add("planes");
        outputter.getListElementNames().add("artifacts");
        outputter.getListElementNames().add("parts");
        outputter.getListElementNames().add("vertices");
        outputter.getListElementNames().add("points");
        outputter.getListElementNames().add("inputs");
        outputter.getListElementNames().add("states");
        outputter.getListElementNames().add("samples");
        outputter.getListElementNames().add("members");
        if (docVersion >= 23) {
            outputter.getListElementNames().add("keywords");
        }

        outputter.getStringElementNames().add("observationID");
        outputter.getStringElementNames().add("productID");
        outputter.getStringElementNames().add("sequenceNumber");
        outputter.getStringElementNames().add("name"); // anything with a name

        Format fmt = null;
        if (prettyPrint) {
            fmt = Format.getPrettyFormat();
            fmt.setIndent("  "); // 2 spaces
        }
        outputter.setFormat(fmt);
        Document document = new Document(root);
        outputter.output(document, writer);
    }
}