org.kalypso.simulation.core.util.AbstractSimulationDataProvider.java Source code

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Here is the source code for org.kalypso.simulation.core.util.AbstractSimulationDataProvider.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.simulation.core.util;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.text.ParseException;
import java.util.HashMap;
import java.util.Map;
import java.util.NoSuchElementException;

import javax.xml.namespace.QName;

import org.apache.commons.httpclient.util.URIUtil;
import org.kalypso.commons.xml.NS;
import org.kalypso.gmlschema.types.IMarshallingTypeHandler;
import org.kalypso.gmlschema.types.ITypeRegistry;
import org.kalypso.gmlschema.types.MarshallingTypeRegistrySingleton;
import org.kalypso.simulation.core.ISimulationDataProvider;
import org.kalypso.simulation.core.SimulationDataPath;
import org.kalypso.simulation.core.SimulationException;
import org.kalypso.simulation.core.calccase.ModelspecData;
import org.kalypso.simulation.core.i18n.Messages;
import org.kalypso.simulation.core.simspec.DataType;

/**
 * @author kurzbach
 */
public abstract class AbstractSimulationDataProvider implements ISimulationDataProvider {
    private final Map<String, String> m_idhash;

    protected static final QName QNAME_ANY_URI = new QName(NS.XSD_SCHEMA, "anyURI"); //$NON-NLS-1$

    protected final ModelspecData m_modelspec;

    public AbstractSimulationDataProvider(final ModelspecData modelspec, final SimulationDataPath[] input) {
        m_modelspec = modelspec;

        // wir interessieren uns nur fr id->pfad
        m_idhash = indexInput(input);
    }

    protected Map<String, String> indexInput(final SimulationDataPath[] input) {
        final Map<String, String> index = new HashMap<>(input.length);
        for (final SimulationDataPath bean : input) {
            index.put(bean.getId(), bean.getPath());
        }

        return index;
    }

    @Override
    public boolean hasID(final String id) {
        return m_idhash.containsKey(id);
    }

    @Override
    public Object getInputForID(final String id) throws SimulationException {
        final String path = m_idhash.get(id);
        if (path == null)
            throw new NoSuchElementException(
                    Messages.getString("org.kalypso.simulation.core.util.AbstractSimulationDataProvider.0") + id); //$NON-NLS-1$

        final DataType inputType = m_modelspec == null ? null : m_modelspec.getInput(id);

        // default to xs:anyURI if no type is given
        final QName type = inputType == null ? QNAME_ANY_URI : inputType.getType();

        // URI types are treated as URLs,
        if (type.equals(QNAME_ANY_URI)) {
            try {
                final URI baseURL = getBaseURL().toURI();
                final URI relativeURI = baseURL.resolve(URIUtil.encodePath(path));

                // try to silently convert the URI to a URL
                try {
                    final URL url = relativeURI.toURL();
                    return url;
                } catch (final MalformedURLException e) {
                    // gobble
                }
                return relativeURI;
            } catch (final IOException e) {
                throw new SimulationException(
                        Messages.getString("org.kalypso.simulation.core.util.AbstractSimulationDataProvider.1"), e); //$NON-NLS-1$
            } catch (final URISyntaxException e) {
                throw new SimulationException(
                        Messages.getString("org.kalypso.simulation.core.util.AbstractSimulationDataProvider.2"), e); //$NON-NLS-1$
            }
        } else {
            final ITypeRegistry<IMarshallingTypeHandler> typeRegistry = MarshallingTypeRegistrySingleton
                    .getTypeRegistry();
            final IMarshallingTypeHandler handler = typeRegistry.getTypeHandlerForTypeName(type);
            if (handler != null) {
                try {
                    return handler.parseType(path);
                } catch (final ParseException e) {
                    throw new SimulationException(Messages.getString(
                            "org.kalypso.simulation.core.util.AbstractSimulationDataProvider.3", path, type), e); //$NON-NLS-1$
                }
            }
        }

        throw new SimulationException(
                Messages.getString("org.kalypso.simulation.core.util.AbstractSimulationDataProvider.4") + type, //$NON-NLS-1$
                null);
    }

    /**
     *
     */
    protected abstract URL getBaseURL() throws IOException;

    /**
     * This method does nothing. Override if needed
     *
     * @see org.kalypso.simulation.core.ISimulationDataProvider#dispose()
     */
    @Override
    public void dispose() {
    }
}