svn-gvsig-desktop / branches / org.gvsig.desktop-2018a / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.tilecache / org.gvsig.fmap.dal.tilecache.raster / src / main / java / org / gvsig / raster / tilecache / provider / FileTileCacheStructImage.java @ 43876
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/* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2016 gvSIG Association
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.raster.tilecache.provider; |
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import java.io.File; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Map.Entry; |
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import java.util.Set; |
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import java.util.TreeMap; |
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import javax.xml.parsers.DocumentBuilder; |
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import javax.xml.parsers.DocumentBuilderFactory; |
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import javax.xml.parsers.ParserConfigurationException; |
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import javax.xml.transform.OutputKeys; |
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import javax.xml.transform.Transformer; |
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import javax.xml.transform.TransformerException; |
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import javax.xml.transform.TransformerFactory; |
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import javax.xml.transform.dom.DOMSource; |
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import javax.xml.transform.stream.StreamResult; |
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|
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import org.apache.commons.io.FileUtils; |
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import org.apache.commons.io.FilenameUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.cresques.cts.IProjection; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.w3c.dom.Attr; |
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import org.w3c.dom.Document; |
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import org.w3c.dom.Element; |
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import org.w3c.dom.NamedNodeMap; |
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import org.w3c.dom.Node; |
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import org.w3c.dom.NodeList; |
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|
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import org.gvsig.fmap.dal.DALFileLocator; |
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import org.gvsig.fmap.dal.DataServerExplorer; |
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import org.gvsig.fmap.dal.DataServerExplorerParameters; |
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import org.gvsig.fmap.dal.DataStore; |
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import org.gvsig.fmap.dal.DataStoreProviderFactory; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ServerExplorerAddException; |
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import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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import org.gvsig.fmap.dal.raster.NewRasterStoreParameters; |
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import org.gvsig.fmap.dal.raster.RasterQuery; |
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import org.gvsig.fmap.dal.raster.RasterSet; |
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import org.gvsig.fmap.dal.raster.RasterStore; |
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import org.gvsig.fmap.dal.raster.spi.RasterStoreProvider; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerManager; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProviderFactory; |
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import org.gvsig.fmap.dal.spi.DALSPILocator; |
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import org.gvsig.fmap.dal.spi.DataManagerProviderServices; |
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import org.gvsig.fmap.geom.Geometry.DIMENSIONS; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.raster.lib.buffer.api.Band; |
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import org.gvsig.raster.lib.buffer.api.Buffer; |
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import org.gvsig.raster.lib.buffer.api.BufferLocator; |
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import org.gvsig.raster.lib.buffer.api.BufferManager; |
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import org.gvsig.raster.lib.buffer.api.TileStruct; |
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import org.gvsig.raster.lib.buffer.api.exceptions.BufferException; |
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import org.gvsig.raster.lib.buffer.spi.DefaultTileStruct; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dispose.Disposable; |
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import org.gvsig.tools.dispose.DisposeUtils; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.extensionpoint.ExtensionPoint.Extension; |
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/**
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* Represents a tiled image
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*
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* @author dmartinezizquierdo
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*
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*/
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public class FileTileCacheStructImage extends AbstractTileCacheStructImage { |
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private static final Logger logger = LoggerFactory.getLogger(FileTileCacheStructImage.class); |
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private static final int MAX_RECENT_ACCEDED_TILES_NUMBER = 50; |
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private FilesystemServerExplorerProviderFactory factory;
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private String extension; |
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private File tilesFolder; |
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private IProjection crs;
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/**
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* @param folder
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* @param crs
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* @param innerProvider
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* @param query
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*/
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public FileTileCacheStructImage(File folder, IProjection crs, RasterStoreProvider innerProvider, RasterQuery query) { |
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super(innerProvider, query);
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this.crs = crs;
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GeometryManager geoManager = GeometryLocator.getGeometryManager(); |
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getTileStruct(); |
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// FIXME
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File tilePropertiesFile = new File(folder, "tileCacheStruct.xml"); |
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if (!tilePropertiesFile.exists()) {
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createTileCacheStructXMLFile(folder); |
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} |
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TreeMap<Integer, Double> pixelSizePerZoomLevel = new TreeMap<Integer, Double>(); |
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recentAccededTiles = new HashMap<String, Tile>(); |
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tilesFolder = new File(folder, "V" + File.separatorChar + "Z" + File.separatorChar + "T"); |
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if (!tilesFolder.exists()) {
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tilesFolder.mkdirs(); |
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} |
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DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance(); |
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DocumentBuilder dBuilder;
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try {
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dBuilder = dbFactory.newDocumentBuilder(); |
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Document doc = dBuilder.parse(tilePropertiesFile);
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doc.getDocumentElement().normalize(); |
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NodeList nList = doc.getElementsByTagName("TileCacheStruct");
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for (int temp = 0; temp < nList.getLength(); temp++) { |
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Node nNode = nList.item(temp); |
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if (nNode.getNodeType() == Node.ELEMENT_NODE) {
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Element eElement = (Element) nNode; |
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NamedNodeMap tileSizeAttributes = eElement.getElementsByTagName("tileSize").item(0).getAttributes(); |
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tileStruct.setRowsPerTile(Integer.valueOf(tileSizeAttributes.getNamedItem("rows").getNodeValue())); |
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tileStruct.setColumnsPerTile(Integer.valueOf(tileSizeAttributes.getNamedItem("columns").getNodeValue())); |
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NodeList elementsByTagName = eElement.getElementsByTagName("format");
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tileStruct.setProviderName(elementsByTagName.item(0).getTextContent());
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NodeList structExtentList = eElement.getElementsByTagName("structExtent");
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if (structExtentList.getLength() > 0) { |
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Element structExtentNode = (Element) structExtentList.item(0); |
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if (structExtentNode != null) { |
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Double minX =
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Double.valueOf(structExtentNode.getElementsByTagName("minX").item(0).getTextContent()); |
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Double minY =
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Double.valueOf(structExtentNode.getElementsByTagName("minY").item(0).getTextContent()); |
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Double maxX =
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Double.valueOf(structExtentNode.getElementsByTagName("maxX").item(0).getTextContent()); |
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Double maxY =
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Double.valueOf(structExtentNode.getElementsByTagName("maxY").item(0).getTextContent()); |
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tileStruct.setEnvelope(geoManager.createEnvelope(minX, minY, maxX, maxY, SUBTYPES.GEOM2D)); } |
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} |
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FilesystemServerExplorerManager explorerManager = |
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DALFileLocator.getFilesystemServerExplorerManager(); |
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@SuppressWarnings("unchecked") |
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Iterator<Extension> it = explorerManager.getRegisteredProviders();
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while (it.hasNext()) {
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Extension ext = it.next(); |
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FilesystemServerExplorerProviderFactory providerFactory; |
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try {
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providerFactory = (FilesystemServerExplorerProviderFactory) ext.create(); |
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if (providerFactory.getName().equalsIgnoreCase(tileStruct.getProviderName())) {
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this.factory = providerFactory;
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break;
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} |
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} catch (Exception e) { |
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throw new RuntimeException(e);// FIXME !!! |
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} |
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} |
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NodeList levelsTag = eElement.getElementsByTagName("levels");
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Element levels = (Element) levelsTag.item(0); |
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NodeList levelList = levels.getElementsByTagName("level");
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for (int i = 0; i < levelList.getLength(); i++) { |
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Element level = (Element) levelList.item(i); |
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NamedNodeMap levelAttributes = level.getAttributes(); |
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int zoomLevel = Integer.valueOf(levelAttributes.getNamedItem("index").getNodeValue()); |
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double pixelSize = Double.valueOf(levelAttributes.getNamedItem("pixelSize").getNodeValue()); |
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pixelSizePerZoomLevel.put(zoomLevel, pixelSize); |
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} |
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this.tileStruct.setPixelSizePerZoomLevel(pixelSizePerZoomLevel);
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} |
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} |
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} catch (Exception e) { |
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throw new RuntimeException(); |
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} |
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} |
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@Override
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public Band fetchTile(int bandNumber, int zoomLevel, int structRow, int structCol) { |
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BufferManager bufferManager = BufferLocator.getBufferManager(); |
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String keyTile = composeKeyForRecentTiles(zoomLevel, structRow, structCol);
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Tile tile = recentAccededTiles.get(keyTile); |
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if (tile != null) { |
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// Devolver la banda del buffer del tile
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return tile.getBuffer().getBand(bandNumber);
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} else {
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// Cargar un tile nuevo
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Buffer rasterSet = null; |
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RasterStore tileStore = null;
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RasterSet tileStoreRasterSet = null;
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Band band = null;
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try {
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tileStore = createTileStore(zoomLevel, structRow, structCol); |
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tileStoreRasterSet = tileStore.getRasterSet(); |
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rasterSet = bufferManager.createBuffer(tileStoreRasterSet, false);
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if (recentAccededTiles.size() >= MAX_RECENT_ACCEDED_TILES_NUMBER) {
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removeOlderTile(); |
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} |
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recentAccededTiles.put(keyTile, new Tile(rasterSet, keyTile));
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band = rasterSet.getBand(bandNumber); |
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// ToolsLocator.getDisposableManager().bind(band);
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return band;
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} catch (DataException | BufferException | ValidateDataParametersException | CreateEnvelopeException | CloneNotSupportedException e) { |
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logger.warn("Can't fetch tile: zoomLevel = " + zoomLevel + ", tileRow = " + structRow |
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+ ", tileColumn = " + structCol + ", band = " + bandNumber + ".", e); |
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return null; |
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} finally {
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DisposeUtils.dispose(tileStore); |
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tileStore = null;
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DisposeUtils.dispose(tileStoreRasterSet); |
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tileStoreRasterSet = null;
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DisposeUtils.dispose(rasterSet); |
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rasterSet = null;
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} |
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} |
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} |
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private RasterStore createTileStore(int zoomLevel, int structRow, int structCol) throws ValidateDataParametersException, CreateEnvelopeException, BufferException, DataException, CloneNotSupportedException { |
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File tileFile = null; |
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File zoomFolder = new File(tilesFolder, String.valueOf(zoomLevel)); |
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if (!zoomFolder.exists()) {
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zoomFolder.mkdirs(); |
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} |
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File firstColumnFolder = new File(zoomFolder, String.valueOf(structCol)); |
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if (!firstColumnFolder.exists()) {
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tileFile = requestTileFile(zoomLevel, structRow, structCol); |
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this.extension = FilenameUtils.getExtension(tileFile.getAbsolutePath());
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} |
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String rowBaseName = String.valueOf(structRow); |
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if (this.extension == null) { |
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File[] providerAcceptedFiles = firstColumnFolder.listFiles(factory); |
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for (int i = 0; i < providerAcceptedFiles.length; i++) { |
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File providerAcceptedFile = providerAcceptedFiles[i];
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if (FilenameUtils.getBaseName(providerAcceptedFile.getAbsolutePath()).equalsIgnoreCase(rowBaseName)) {
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tileFile = providerAcceptedFile; |
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} |
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} |
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if (tileFile == null || !tileFile.exists()) { |
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tileFile = requestTileFile(zoomLevel, structRow, structCol); |
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} |
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this.extension = FilenameUtils.getExtension(tileFile.getAbsolutePath());
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} else {
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if (tileFile == null) { |
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tileFile = |
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new File(firstColumnFolder.getAbsolutePath() + File.separatorChar + rowBaseName + "." |
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+ this.extension);
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} |
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} |
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if (!tileFile.exists()) {
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tileFile = requestTileFile(zoomLevel, structRow, structCol); |
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} |
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RasterStore tileStore = null;
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DataManagerProviderServices manager = DALSPILocator.getDataManagerProviderServices(); |
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DataStoreProviderFactory providerFactory = manager.getStoreProviderFactory(this.tileStruct.getProviderName());
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DynObject params = providerFactory.createParameters(); |
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if (params.getDynClass().getDynField("file") != null) { |
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params.setDynValue("file", tileFile);
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} |
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if (params.getDynClass().getDynField("crs") != null) { |
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params.setDynValue("crs", this.crs); |
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} |
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tileStore = (RasterStore) manager.openStore(this.tileStruct.getProviderName(), params);
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return tileStore;
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} |
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private File requestTileFile(int zoomLevel, int structRow, int structCol) throws CreateEnvelopeException, |
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CloneNotSupportedException, BufferException, ValidateDataParametersException, DataException {
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RasterQuery rasterQuery = (RasterQuery) this.query.clone();
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Double pixelSize = this.tileStruct.getPixelSizePerZoomLevel().get(zoomLevel); |
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rasterQuery.setPixelSize(pixelSize); |
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GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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Envelope structExtent = this.tileStruct.getEnvelope();
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int rowsPerTile = this.tileStruct.getRowsPerTile(); |
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int columnsPerTile = this.tileStruct.getColumnsPerTile(); |
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double minX = structExtent.getMinimum(DIMENSIONS.X) + structCol * (pixelSize * columnsPerTile);
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double minY = structExtent.getMaximum(DIMENSIONS.Y) - ((structRow + 1) * (pixelSize * rowsPerTile)); |
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double maxX = minX + pixelSize * columnsPerTile;
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double maxY = minY + pixelSize * rowsPerTile;
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Envelope envelope = geomManager.createEnvelope(minX, minY, maxX, maxY, SUBTYPES.GEOM2D); |
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rasterQuery.setClip(envelope); |
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Buffer buffer = null; |
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Buffer clippedBuffer = null; |
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Buffer interpolatedBuffer = null; |
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File destFile = null; |
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DataServerExplorer serverExplorer = null;
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try {
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buffer = innerProvider.createBuffer(rasterQuery); |
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clippedBuffer = buffer.clip(envelope); |
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interpolatedBuffer = |
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clippedBuffer.createInterpolated( |
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(int) (Math.round(clippedBuffer.getDimensions().getPixelSizeY() * clippedBuffer.getRows() / pixelSize)), |
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(int) (Math.round(clippedBuffer.getDimensions().getPixelSizeX() * clippedBuffer.getColumns() / pixelSize)), |
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Buffer.INTERPOLATION_Bilinear, null); |
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String providerName = "GTiff"; |
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String extension = "tif"; |
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DataManagerProviderServices manager = DALSPILocator.getDataManagerProviderServices(); |
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DataServerExplorerParameters eparams; |
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eparams = manager.createServerExplorerParameters("FilesystemExplorer");
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destFile = FileUtils.getFile(tilesFolder,Integer.toString(zoomLevel),Integer.toString(structCol),Integer.toString(structRow)+"."+extension); |
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File parent = destFile.getParentFile();
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if (!parent.exists()) {
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parent.mkdirs(); |
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} |
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eparams.setDynValue("initialpath", destFile);
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// DataServerExplorer serverExplorer = manager.createServerExplorer(eparams);
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serverExplorer = manager.openServerExplorer(eparams.getExplorerName(), eparams); |
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NewRasterStoreParameters params = (NewRasterStoreParameters) serverExplorer.getAddParameters(providerName); |
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params.setDynValue("file", destFile);
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params.setDynValue("compress", "NONE"); |
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params.setDynValue("tfw", false); |
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// FIXME: Ver de coger estos dos valores del inner provider para que
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// los tiles sean homog?neos con el raster original
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int bands = innerProvider.getBands();
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switch (bands) {
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case 3: |
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params.setDynValue("photometric", "RGB"); |
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break;
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case 4: |
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params.setDynValue("photometric", "RGB"); |
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params.setDynValue("alpha", "NON-PREMULTIPLIED"); |
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break;
|
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default:
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params.setDynValue("photometric", "MINISBLACK"); |
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break;
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} |
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params.setBuffer(interpolatedBuffer); |
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serverExplorer.add(providerName, params, true);
|
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} finally {
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DisposeUtils.dispose(buffer); |
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DisposeUtils.dispose(clippedBuffer); |
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DisposeUtils.dispose(interpolatedBuffer); |
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DisposeUtils.dispose(serverExplorer); |
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} |
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|
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return destFile;
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} |
396 |
|
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@Override
|
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protected void doDispose() throws BaseException { |
399 |
super.doDispose();
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factory = null;
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crs = null;
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tilesFolder = null;
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extension = null;
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} |
405 |
|
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private void createTileCacheStructXMLFile(File folder) { |
407 |
|
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TileStruct tileStructProvider = null;
|
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try {
|
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if (innerProvider != null) { |
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tileStructProvider = innerProvider.getTileStruct(); |
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DisposeUtils.bind((Disposable) tileStructProvider); |
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} |
414 |
|
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int tileSizeX = TileCacheLibrary.DEFAULT_TILEWIDTH;
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if (tileStructProvider != null && tileStructProvider.getColumnsPerTile() != 0) { |
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tileSizeX = tileStructProvider.getColumnsPerTile(); |
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} |
419 |
|
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int tileSizeY = TileCacheLibrary.DEFAULT_TILEHEIGHT;
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if (tileStructProvider != null && tileStructProvider.getRowsPerTile() != 0) { |
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tileSizeY = tileStructProvider.getRowsPerTile(); |
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} |
424 |
|
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File file = new File(folder, "tileCacheStruct.xml"); |
426 |
|
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if (!file.exists()) {
|
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Buffer auxBuffer = null; |
429 |
try {
|
430 |
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance(); |
431 |
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
|
432 |
|
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// root elements
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Document doc = (Document) docBuilder.newDocument(); |
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Element rootElement = doc.createElement("TileCacheStruct"); |
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doc.appendChild(rootElement); |
437 |
|
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// tileSize
|
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Element tileSize = doc.createElement("tileSize"); |
440 |
rootElement.appendChild(tileSize); |
441 |
|
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// tileSize Rows
|
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Attr rows = doc.createAttribute("rows");
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rows.setValue(String.valueOf(tileSizeY));
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tileSize.setAttributeNode(rows); |
446 |
|
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// tileSize Columns
|
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Attr columns = doc.createAttribute("columns");
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columns.setValue(String.valueOf(tileSizeX));
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tileSize.setAttributeNode(columns); |
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|
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// format
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Element format = doc.createElement("format"); |
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if (tileStructProvider == null || StringUtils.isEmpty(tileStructProvider.getProviderName())) { |
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format.setTextContent("GTiff");
|
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} |
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rootElement.appendChild(format); |
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|
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// structExtent
|
460 |
Element structExtent = doc.createElement("structExtent"); |
461 |
rootElement.appendChild(structExtent); |
462 |
|
463 |
Envelope envelope = (Envelope) innerProvider.getDynValue(DataStore.METADATA_ENVELOPE); |
464 |
|
465 |
// structExtent minX
|
466 |
Element minX = doc.createElement("minX"); |
467 |
minX.setTextContent(String.valueOf(envelope.getMinimum(DIMENSIONS.X)));
|
468 |
structExtent.appendChild(minX); |
469 |
|
470 |
// structExtent minY
|
471 |
Element minY = doc.createElement("minY"); |
472 |
minY.setTextContent(String.valueOf(envelope.getMinimum(DIMENSIONS.Y)));
|
473 |
structExtent.appendChild(minY); |
474 |
|
475 |
// structExtent maxX
|
476 |
Element maxX = doc.createElement("maxX"); |
477 |
maxX.setTextContent(String.valueOf(envelope.getMaximum(DIMENSIONS.X)));
|
478 |
structExtent.appendChild(maxX); |
479 |
|
480 |
// structExtent maxY
|
481 |
Element maxY = doc.createElement("maxY"); |
482 |
maxY.setTextContent(String.valueOf(envelope.getMaximum(DIMENSIONS.Y)));
|
483 |
structExtent.appendChild(maxY); |
484 |
|
485 |
Element levels = doc.createElement("levels"); |
486 |
rootElement.appendChild(levels); |
487 |
|
488 |
List<Double> pixelSizes = new ArrayList<Double>(); |
489 |
Map<Integer, Double> zoomLevels = new HashMap<Integer, Double>(); |
490 |
|
491 |
if (tileStructProvider == null || tileStructProvider.getPixelSizePerZoomLevel() == null) { |
492 |
// FIXME: ?alguna otra forma de obtener el pixelSize del
|
493 |
// store completo?
|
494 |
auxBuffer = innerProvider.createBuffer(null);
|
495 |
int completeRows = auxBuffer.getRows();
|
496 |
int completeColumns = auxBuffer.getColumns();
|
497 |
double completePixelSizeX = auxBuffer.getDimensions().getPixelSizeX();
|
498 |
double completePixelSizeY = auxBuffer.getDimensions().getPixelSizeY();
|
499 |
|
500 |
int maximumLength = completeColumns;
|
501 |
int tileMaximumLength = tileSizeX;
|
502 |
double maximumPixelSize = completePixelSizeX;
|
503 |
|
504 |
if (completeRows * tileSizeY > completeColumns * tileSizeX) {
|
505 |
maximumLength = completeRows; |
506 |
tileMaximumLength = tileSizeY; |
507 |
maximumPixelSize = completePixelSizeY; |
508 |
} |
509 |
|
510 |
double pixelSize = maximumPixelSize;
|
511 |
while (maximumLength * maximumPixelSize / pixelSize > tileMaximumLength) {
|
512 |
pixelSizes.add(pixelSize); |
513 |
pixelSize = pixelSize * 2;
|
514 |
} |
515 |
pixelSizes.add(pixelSize); |
516 |
int i = 0; |
517 |
for (int zoomLevel = pixelSizes.size() - 1; zoomLevel >= 0; zoomLevel--) { |
518 |
zoomLevels.put(i, pixelSizes.get(zoomLevel)); |
519 |
appendZoomLevel(doc, levels, i, pixelSizes.get(zoomLevel)); |
520 |
i++; |
521 |
} |
522 |
} else {
|
523 |
zoomLevels = tileStructProvider.getPixelSizePerZoomLevel(); |
524 |
} |
525 |
|
526 |
for (Entry<Integer, Double> entry : zoomLevels.entrySet()) { |
527 |
appendZoomLevel(doc, levels, entry.getKey(), entry.getValue()); |
528 |
} |
529 |
|
530 |
// write the content into xml file
|
531 |
|
532 |
DOMSource source = new DOMSource(doc); |
533 |
File parent = file.getParentFile();
|
534 |
if (!parent.exists()) {
|
535 |
parent.mkdirs(); |
536 |
} |
537 |
file.createNewFile(); |
538 |
StreamResult result = new StreamResult(file.toURI().getPath()); |
539 |
|
540 |
TransformerFactory transformerFactory = TransformerFactory.newInstance(); |
541 |
Transformer transformer = transformerFactory.newTransformer();
|
542 |
transformer.setOutputProperty(OutputKeys.INDENT, "yes"); |
543 |
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); |
544 |
transformer.transform(source, result); |
545 |
|
546 |
} catch (ParserConfigurationException | TransformerException | IOException | BufferException e) { |
547 |
logger.warn("Can't create tileCacheStruct.xml file", e);
|
548 |
} finally {
|
549 |
DisposeUtils.dispose(auxBuffer); |
550 |
auxBuffer = null;
|
551 |
} |
552 |
} |
553 |
} finally {
|
554 |
DisposeUtils.disposeQuietly((Disposable) tileStructProvider); |
555 |
tileStructProvider = null;
|
556 |
|
557 |
} |
558 |
} |
559 |
|
560 |
/**
|
561 |
* @param doc
|
562 |
* @param rootElement
|
563 |
* @param levels
|
564 |
* @param zoomLevel
|
565 |
* @param pixelSize
|
566 |
*/
|
567 |
private void appendZoomLevel(Document doc, Element levels, int zoomLevel, double pixelSize) { |
568 |
Element level = doc.createElement("level"); |
569 |
levels.appendChild(level); |
570 |
|
571 |
// level zoomLevel
|
572 |
Attr index = doc.createAttribute("index");
|
573 |
index.setValue(String.valueOf(zoomLevel));
|
574 |
level.setAttributeNode(index); |
575 |
|
576 |
// level pixelSize
|
577 |
Attr pxSize = doc.createAttribute("pixelSize");
|
578 |
pxSize.setValue(String.valueOf(pixelSize));
|
579 |
level.setAttributeNode(pxSize); |
580 |
} |
581 |
|
582 |
/* (non-Javadoc)
|
583 |
* @see org.gvsig.raster.tilecache.provider.ITileStructImage#getTileStruct()
|
584 |
*/
|
585 |
@Override
|
586 |
public TileStruct getTileStruct() {
|
587 |
if(this.tileStruct==null){ |
588 |
this.tileStruct = new DefaultTileStruct(); |
589 |
} |
590 |
return this.tileStruct; |
591 |
} |
592 |
|
593 |
public void forgetCache() { |
594 |
super.forgetCache();
|
595 |
if(tilesFolder.exists() && tilesFolder.isDirectory()){
|
596 |
File[] files = tilesFolder.listFiles(); |
597 |
for(int i=0; i<files.length; i++){ |
598 |
try {
|
599 |
FileUtils.forceDelete(files[i]); |
600 |
} catch (IOException e) { |
601 |
logger.warn("Can't delete the file "+files[i].getAbsolutePath(), e);
|
602 |
} |
603 |
} |
604 |
} |
605 |
} |
606 |
} |