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.

*

*/

package org.gvsig.raster.wmts.ogc.impl.struct;

import java.awt.geom.Rectangle2D;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.crs.CRSFactory;

import org.gvsig.raster.wmts.ogc.WMTSStatus;

import org.gvsig.raster.wmts.ogc.impl.base.WMTSServerDescription;

import org.gvsig.raster.wmts.ogc.struct.WMTSBoundingBox;

import org.gvsig.raster.wmts.ogc.struct.WMTSDimension;

import org.gvsig.raster.wmts.ogc.struct.WMTSLayer;

import org.gvsig.raster.wmts.ogc.struct.WMTSResourceURL;

import org.gvsig.raster.wmts.ogc.struct.WMTSStyle;

import org.gvsig.raster.wmts.ogc.struct.WMTSTileMatrix;

import org.gvsig.raster.wmts.ogc.struct.WMTSTileMatrixLimits;

import org.gvsig.raster.wmts.ogc.struct.WMTSTileMatrixSet;

import org.gvsig.raster.wmts.ogc.struct.WMTSTileMatrixSetLink;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Describes the attributes of a layer in a WMTS server

 *

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

 */

public abstract class WMTSLayerImpl extends WMTSBaseStruct implements WMTSLayer {

        protected WMTSBoundingBox             wgs84bbox                    = null;

        protected WMTSBoundingBox             bbox                         = null;

        private List<WMTSStyle>               style                        = null;

        private List<String>                  imageFormat                  = null;

        private List<String>                  infoFormat                   = null;

        private List<String>                  keywords                     = null;

        private List<WMTSDimension>           dimension                    = null;

        private String                        metadata                     = null;

        private List<WMTSTileMatrixSetLink>   tileMatrixSetLinkList        = null;

        private List<WMTSResourceURL>         resourceURL                  = null;

        protected WMTSServerDescription       status                       = null;

        private Logger                        log                          = LoggerFactory.getLogger(WMTSLayerImpl.class);

        protected boolean                     forceChangeAxisOrder         = false;

        private HashMap<String, Rectangle2D>  transformations = new HashMap<String, Rectangle2D>();

        /**

         * Sets longitude first in the axis order read from the capabilities file

         * @param force

         */

        public void setForceChangeAxisOrder(boolean force) {

                this.forceChangeAxisOrder = force;

        }

        public WMTSLayerImpl(WMTSServerDescription status) {

                this.status = status;

        }

        public String getMetadata() {

                return metadata;

        }

        public void setMetadata(String metadata) {

                this.metadata = metadata;

        }

        public List<String> getFormat() {

                if(imageFormat == null)

                        imageFormat = new ArrayList<String>();

                return imageFormat;

        }

        public List<String> getInfoFormat() {

                if(infoFormat == null)

                        infoFormat = new ArrayList<String>();

                return infoFormat;

        }

        public List<String> getKeywords() {

                return keywords;

        }

        public void setKeywords(List<String> k) {

                this.keywords = k;

        }

        public WMTSBoundingBox getWGS84BBox() {

                return wgs84bbox;

        }

        public Rectangle2D getWGS84BBoxTransformed(String epsg) {

                Rectangle2D r = transformations.get(epsg);

                if(r != null) {

                        return r;

                }

                IProjection projSrc = CRSFactory.getCRS("EPSG:4326");

                try {

                        IProjection projDst = CRSFactory.getCRS(epsg);

                        if(projDst != null) {

                                try {

                                        ICoordTrans t = projSrc.getCT(projDst);

                                        r = t.convert(wgs84bbox.toRectangle2D());

                                        if(isBoundingBoxValid(r)) {

                                                transformations.put(epsg, r);

                                                return r;

                                        }

                                } catch (Exception e) {

                                        log.info("I cannot get the transformation between EPSG:4326 and " + epsg, e);

                                }

                        }

                } catch (Exception e1) {

                        log.info("I cannot get " + epsg, e1);

                }

                return null;

        }

        private boolean isBoundingBoxValid(Rectangle2D bbox) {

                if(Double.isInfinite(bbox.getX()) || 

                        Double.isNaN(bbox.getX()) || 

                        Double.isInfinite(bbox.getY()) || 

                        Double.isNaN(bbox.getY())) {

                        return false;

                }

                return true;

        }

        public WMTSBoundingBox getBBox() {

                return bbox;

        }

        public void setWGS84BBox(WMTSBoundingBox wgs84bbox) {

                this.wgs84bbox = wgs84bbox;

        }

        public void setBBox(WMTSBoundingBox bbox) {

                this.bbox = bbox;

        }

        public List<WMTSResourceURL> getResourceURL() {

                if(resourceURL == null)

                        resourceURL = new ArrayList<WMTSResourceURL>();//resourceURL = (WMTSResourceURL)status.createVersionObject("WMTSResourceURL");

                return resourceURL;

        }

        public List<WMTSDimension> getDimensions() {

                if(dimension == null)

                        dimension = new ArrayList<WMTSDimension>(); //(WMTSDimension)status.createVersionObject("WMTSDimension");

                return dimension;

        }

        public List<WMTSStyle> getStyle() {

                if(style == null)

                        style = new ArrayList<WMTSStyle>();//(WMTSStyle)status.createVersionObject("WMTSStyle");

                return style;

        }

        public List<WMTSTileMatrixSetLink> getTileMatrixSetLink() {

                if(tileMatrixSetLinkList == null)

                        tileMatrixSetLinkList = new ArrayList<WMTSTileMatrixSetLink>();

                return tileMatrixSetLinkList;

        }

        /**

         * Returns the initial level of this layer inside the matrix set. 

         * @return

         */

        public int getInitialLevel(String tileMatrixSetId) {

                int initialLevel = 0;

                for (int i = 0; i < tileMatrixSetLinkList.size(); i++) {

                        WMTSTileMatrixSetLinkImpl tileMatrixSetLink = (WMTSTileMatrixSetLinkImpl)tileMatrixSetLinkList.get(i);

                        String id = tileMatrixSetLink.getTileMatrixSetId();

                        if(tileMatrixSetId.compareTo(id) == 0) {

                                List<WMTSTileMatrixLimits> tileMatrixLimits = tileMatrixSetLink.getTileMatrixLimits();

                                if(tileMatrixLimits != null && tileMatrixLimits.size() > 0) {

                                        String ref = ((WMTSTileMatrixLimitsImpl)tileMatrixLimits.get(0)).getRefToTileMatrix();

                                        List<WMTSTileMatrix> tileMatrixList = ((WMTSTileMatrixSetImpl)tileMatrixSetLink.getTileMatrixSet()).getTileMatrix();

                                        for (int j = 0; j < tileMatrixList.size(); j++) {

                                                String idTileMatrix = ((WMTSTileMatrixImpl)tileMatrixList.get(j)).getIdentifier();

                                                if(idTileMatrix.compareTo(ref) == 0)

                                                        return initialLevel;

                                                initialLevel ++;

                                        }

                                }

                        }

                }

                return initialLevel;

        }

        /**

         * Links the TileMatrixSet with the limits inside the layer structure

         * @param tileMatrixSetList

         */

        public void linkTileMatrixSets(List<WMTSTileMatrixSet> tileMatrixSetList) {

                //Recorre la lista de TileMatrixSetLink y a cada uno le asigna su TileMatrixSet

                //Para cada TileMatrixLimits contenido en el TileMatrixSetLimits asociado le asigna

                //el objeto TileMatrix a partir de su referencia.

                if(tileMatrixSetLinkList == null)

                        return;

                for (int i = 0; i < tileMatrixSetLinkList.size(); i++) {

                        WMTSTileMatrixSetLinkImpl tileMatrixSetLink = (WMTSTileMatrixSetLinkImpl)tileMatrixSetLinkList.get(i);

                        String id = tileMatrixSetLink.getTileMatrixSetId();

                        for (int j = 0; j < tileMatrixSetList.size(); j++) {

                                WMTSTileMatrixSetImpl tileMatrixSet = (WMTSTileMatrixSetImpl)tileMatrixSetList.get(j);

                                if(tileMatrixSet.getIdentifier().compareTo(id) == 0) {

                                        tileMatrixSetLink.setTileMatrixSet(tileMatrixSet);

                                        tileMatrixSetLink.linkTileMatrix(tileMatrixSet);

                                        break;

                                }

                        }

                }

        }

        /**

         * Gets the list of srs's supported

         * @return

         */

        public List<String> getSrsList() {

                List<String> list = new ArrayList<String>();

                for (int i = 0; i < tileMatrixSetLinkList.size(); i++) {

                        WMTSTileMatrixSetLinkImpl link = (WMTSTileMatrixSetLinkImpl)tileMatrixSetLinkList.get(i);

                        WMTSTileMatrixSetImpl tileMatrixSet = (WMTSTileMatrixSetImpl)link.getTileMatrixSet();

                        list.add(tileMatrixSet.getSupportedCRS());

                }

                return list;

        }

        /**

         * Builds the list of URL whether the capabilities file uses templates.

         */

        public void buildResourceURLListFromTemplate(WMTSStatus status) {

                TemplateSupport templateSupport = new TemplateSupport(getDimensions(), getResourceURL());

                templateSupport.buildResourceURLListFromTemplate(status);

        }

        public void print() {

                System.out.println("*****WMTSLayer******");

                System.out.println("Abstract:" + getAbstract());

                System.out.println("Identifier:" + getIdentifier());

                System.out.println("Keywords:");

                for (int i = 0; i < keywords.size(); i++) {

                        System.out.println("Keyword:" + keywords.get(i));

                }

                System.out.println("Title:" + getTitle());

                for (int i = 0; i < getFormat().size(); i++) {

                        System.out.println("Format:" + getFormat().get(i));

                }

                for (int i = 0; i < getInfoFormat().size(); i++) {

                        System.out.println("InfoFormat:" + getInfoFormat().get(i));

                }

                ((WMTSBoundingBoxImpl)getBBox()).print();

                ((WMTSBoundingBoxImpl)getWGS84BBox()).print();

                for (int i = 0; i < getDimensions().size(); i++) {

                        ((WMTSDimensionImpl)getDimensions().get(i)).print();                        

                }

                System.out.println("Metadata:" + getMetadata());

                for (int i = 0; i < getTileMatrixSetLink().size(); i++) {

                        ((WMTSTileMatrixSetLinkImpl)getTileMatrixSetLink().get(i)).print();

                }

        }

}