Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

*

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program 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 General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

* MA  02110-1301, USA.

*

*/

/*

* AUTHORS (In addition to CIT):

* 2009 IVER T.I   {{Task}}

*/

package org.gvsig.raster.wms.io;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.fmap.dal.DataServerExplorerParameters;

import org.gvsig.fmap.dal.spi.AbstractDataParameters;

import org.gvsig.raster.impl.store.AbstractRasterDataParameters;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DelegatedDynObject;

import org.gvsig.tools.dynobject.DynClass;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

/**

 * Parameters for the WMS provider

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class WMSServerExplorerParameters extends AbstractDataParameters implements DataServerExplorerParameters {

        protected static final String  FIELD_HOST          = "host";

        protected static DynClass      DYNCLASS            = null;

        private DelegatedDynObject     delegatedDynObject  = null;

        private static final String    FIELD_XYAXISORDER   = "xyaxisorder";

    private static final String    OLD_FIELD_AXISORDER   = "axisorder";

    @SuppressWarnings("unused")

    private static final Logger logger = LoggerFactory.getLogger(WMSServerExplorerParameters.class);

        /**

         *

         */

        public WMSServerExplorerParameters() {

                super();

                initialize();

        }

        protected void initialize() {

                this.delegatedDynObject = (DelegatedDynObject) ToolsLocator

                                .getDynObjectManager().createDynObject(

                                                registerDynClass());

        }

        /**

         * @return the dynstruct

         */

        public static DynStruct registerDynClass() {

                PersistenceManager manager = ToolsLocator.getPersistenceManager();

                DynStruct definition = manager.getDefinition("WMSServerExplorerParameters_Persistent");

                if( definition == null ) {

                        definition = manager.addDefinition(

                                        WMSServerExplorerParameters.class,

                                        "WMSServerExplorerParameters_Persistent",

                                        "WMS Explorer DataParameters Persistency",

                                        null,

                                        null

                        );

                }

                AbstractRasterDataParameters.registerDynClass(definition);

                definition.addDynFieldBoolean(FIELD_XYAXISORDER)

                .setDescription("Longitude first in axis order")

                .setMandatory(false).setDefaultFieldValue(new Boolean(false));

                definition.addDynFieldString(FIELD_HOST)

                .setDescription("Uniform Resource Identifier (File name or URL)")

                .setMandatory(false);

                return definition;

        }

        protected DelegatedDynObject getDelegatedDynObject() {

                return delegatedDynObject;

        }

        /**

         * Gets the assigned host

         * @return the value of host field

         */

        public String getHost() {

                return (String) this.getDynValue(FIELD_HOST);

        }

        /**

         * Assign the host to this explorer

         * @param host

         */

        public void setHost(String host) {

                this.setDynValue(FIELD_HOST, host);

        }

        /**

         * @return the provider name

         */

        public String getDataStoreName() {

                return WMSProvider.NAME;

        }

    /**

     * @return the provider description

     */

        public String getDescription() {

                return WMSProvider.DESCRIPTION;

        }

        public String getExplorerName() {

                return WMSServerExplorer.NAME;

        }

        /**

         * <p>Gets the behaviour of the WMS client with regards the axis order</p>

         *

         * <p>Returns <code>true</code> if the WMS parser should assume that the

         * order of the coordinates follows the XY axis order

         * (the first coordinate corresponds to the horizontal X

         * axis, while the second  coordinate corresponds to the

         * vertical Y axis), regardless the protocol version and CRS in use.</p>

         *

         * <p>Returns <code>false</code> if the WMS parser should decide the

         * axis order based on the protocol version and the coordinate

         * reference system (CRS) in use. In particular, if protocol

         * version is >= 1.3.0, then the WMS parser assumes

         * the axis order defined in the official EPSG registry for the

         * CRS in use. For versions < 1.3.0, the XY axis order is assumed.</p>

         *

         * <p>The default value is <code>false</code></p>.

         * @see #setXyAxisOrder(boolean)

         * @return true if axis order is x-y

         */

        public boolean isXyAxisOrder() {

                if (hasDynValue(FIELD_XYAXISORDER)) {

                        Object obj = getDynValue(FIELD_XYAXISORDER);

                        if(obj instanceof Boolean) {

                                Boolean b = (Boolean)getDynValue(FIELD_XYAXISORDER);

                                if(b != null)

                                        return ((Boolean)b).booleanValue();

                        }

                        if(obj instanceof String) {

                                String b = (String)getDynValue(FIELD_XYAXISORDER);

                                if(b != null)

                                        return new Boolean(((String)b));

                        }

                }

                return false;

        }

        /**

         * <p>Sets the behaviour of the WMS client with regards the axis order.<p>

         *

         * <p>If set to <code>true</code>, then the XY axis order

         * is assumed for all the WMS

         * protocol versions and coordinate reference systems.</p>

         *

         * <p>If set to <code>false</code>

         * then the WMS parser will decide the axis order based on

         * the protocol version and the coordinate reference system (CRS)

         * in use. In particular, if protocol

         * version is >= 1.3.0, then the WMS parser assumes

         * the axis order defined in the official EPSG registry for the

         * CRS in use. For versions < 1.3.0, the XY axis order is assumed.</p>

         *

         *

         * @param assumeXY

         * @see #isXyAxisOrder()

         */

        public void setXyAxisOrder(boolean assumeXY) {

                this.setDynValue(FIELD_XYAXISORDER, new Boolean(assumeXY));

        }

    public void loadFromState(PersistentState state) throws PersistenceException {

        super.loadFromState(state);

        // Entre la 2.1 y la 2.2 cambi? la clave de la propiedad axisorder a xyaxisorder

        // El siguiente bloque try catch es para mantener compatibilidad con los proyectos de ambas versiones

        try {

            setDynValue(FIELD_XYAXISORDER, state.get(OLD_FIELD_AXISORDER));

        } catch(Throwable t){

            //do nothing;

        }

    }

    public void setDynValue(String name, Object value) {

        if (OLD_FIELD_AXISORDER.equalsIgnoreCase(name)) {

            super.setDynValue(FIELD_XYAXISORDER, value);

        } else {

            super.setDynValue(name, value);

        }

    }

}