org.kalypso.model.km.internal.binding.KMBindingUtils.java Source code

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Here is the source code for org.kalypso.model.km.internal.binding.KMBindingUtils.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 * 
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 * 
 *  and
 *  
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 * 
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 * 
 *  This library 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
 *  Lesser General Public License for more details.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 *  Contact:
 * 
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *   
 *  ---------------------------------------------------------------------------*/
package org.kalypso.model.km.internal.binding;

import java.io.File;
import java.math.BigDecimal;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;

import org.apache.commons.lang3.StringUtils;
import org.kalypso.commons.bind.JaxbUtilities;
import org.kalypso.model.hydrology.binding.model.KMChannel;
import org.kalypso.model.hydrology.binding.model.NaModell;

import com.sun.xml.bind.marshaller.NamespacePrefixMapper;

import de.tu_harburg.wb.kalypso.rrm.kalininmiljukov.KalininMiljukovGroupType;
import de.tu_harburg.wb.kalypso.rrm.kalininmiljukov.KalininMiljukovType;
import de.tu_harburg.wb.kalypso.rrm.kalininmiljukov.ObjectFactory;

/**
 * @author Gernot Belger
 */
public final class KMBindingUtils {
    public final static String KM_NAMESPACE = "http://www.kalypso.wb.tu-harburg.de/rrm/kalininmiljukov"; //$NON-NLS-1$

    public final static ObjectFactory OF = new ObjectFactory();

    public final static JAXBContext JC = JaxbUtilities.createQuiet(ObjectFactory.class);

    private KMBindingUtils() {
        throw new UnsupportedOperationException("Helper class, do not instantiate"); //$NON-NLS-1$
    }

    public static KMChannelElement[] createKMElements(final NaModell naModel) {
        final KMChannel[] kmChannels = naModel.getKMChannels();
        final KMChannelElement[] elements = new KMChannelElement[kmChannels.length];

        for (int i = 0; i < elements.length; i++)
            elements[i] = createKMForFeature(kmChannels[i]);

        return elements;
    }

    private static KMChannelElement createKMForFeature(final KMChannel channel) {
        final KalininMiljukovType km = OF.createKalininMiljukovType();
        km.setId(channel.getId());
        km.setFile(StringUtils.EMPTY);

        final Double kmStart = channel.getKMStart();
        km.setKmStart(kmStart == null ? null : new BigDecimal(kmStart));

        final Double kmEnd = channel.getKMEnd();
        km.setKmEnd(kmEnd == null ? null : new BigDecimal(kmEnd));

        return new KMChannelElement(channel, km);
    }

    public static KalininMiljukovGroupType load(final File file) throws JAXBException {
        final Unmarshaller unmarshaller = JC.createUnmarshaller();
        final Object object = unmarshaller.unmarshal(file);
        if (object instanceof JAXBElement) {
            final JAXBElement<?> object2 = (JAXBElement<?>) object;
            return (KalininMiljukovGroupType) object2.getValue();
        }

        throw new JAXBException("Unexpected root element: " + object); //$NON-NLS-1$
    }

    public static void save(final KalininMiljukovGroupType kmGroup, final File file) throws JAXBException {
        final Marshaller marshaller = JaxbUtilities.createMarshaller(JC);
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
        marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8"); //$NON-NLS-1$

        final NamespacePrefixMapper prefixMapper = new NamespacePrefixMapper() {
            @Override
            public String getPreferredPrefix(final String namespaceUri, final String suggestion,
                    final boolean requirePrefix) {
                if (KM_NAMESPACE.equals(namespaceUri))
                    return ""; //$NON-NLS-1$

                return null;
            }
        };

        marshaller.setProperty("com.sun.xml.bind.namespacePrefixMapper", prefixMapper); //$NON-NLS-1$

        final JAXBElement<KalininMiljukovGroupType> element = OF.createKalininMiljukovGroup(kmGroup);
        marshaller.marshal(element, file);
    }

    public static boolean isBetween(final KalininMiljukovType kmType, final BigDecimal station) {
        if (station == null)
            return true;

        final BigDecimal start = kmType.getKmStart();
        final BigDecimal end = kmType.getKmEnd();

        if (start != null && station.doubleValue() < start.doubleValue())
            return false;

        if (end != null && station.doubleValue() > end.doubleValue())
            return false;

        return true;
    }
}