Application: gvSIG desktop » gvSIG projections

package org.gvsig.crs;

import java.io.File;

import java.io.IOException;

import java.util.Collection;

import java.util.Iterator;

import org.apache.commons.io.FileUtils;

import org.apache.commons.io.filefilter.FileFilterUtils;

import org.apache.commons.io.filefilter.TrueFileFilter;

import org.apache.commons.lang3.BooleanUtils;

import org.cresques.ProjectionLibrary;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.PluginsLocator;

import org.gvsig.crs.installer.EPSGDatabaseInstallerFactory;

import org.gvsig.crs.persistence.CompTrData;

import org.gvsig.crs.persistence.CrsData;

import org.gvsig.crs.persistence.TrData;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.library.AbstractLibrary;

import org.gvsig.tools.library.LibraryException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class JCRSPluginLibrary  extends AbstractLibrary {

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

    public void doRegistration() {

        // Hack to assign database folder to the jCRS library.

        registerAsServiceOf(ProjectionLibrary.class);

    }

        protected void doInitialize() throws LibraryException {

                CrsData.registerPersistence();

                TrData.registerPersistence();

                CompTrData.registerPersistence();

                PluginServices plugin = PluginsLocator.getManager().getPlugin(JCrsExtension.class);

                DynObject properties = plugin.getPluginProperties();

                initalizeHomeDB(plugin);

                CrsFactory.setDataBaseFolder(new File (plugin.getPluginHomeFolder(),"db"));

                CrsFactory.setProjLibFolder(new File (plugin.getPluginHomeFolder(),"projlib"));

                CrsFactory.setEnableMemoryCacheOfCRS(

                        BooleanUtils.isTrue((Boolean) properties.getDynValue("useMemoryCacheForCRSs"))

                );

                CrsFactory.setEpsgDatabaseFile(this.getDefaultDatabaseFolder(plugin, properties));

                EPSGDatabaseInstallerFactory.registerEPSGDatabaseInstaller();

        }

        private File getDefaultDatabaseFolder(PluginServices plugin, DynObject pluginProperties) {

            File dbfolder = new File (plugin.getPluginHomeFolder(),"db");

            File f2;

            String fname = (String) pluginProperties.getDynValue("epsgDatabase");

            if( fname!=null ) {

                f2 = new File(dbfolder, fname);

                if( f2.exists() ) {

                    return new File(fname);

                }

            }

            File folder = new File(dbfolder,"EPSG");

            Collection<File> subfolders = FileUtils.listFilesAndDirs(

                    folder,

                    FileFilterUtils.falseFileFilter(), 

                    FileFilterUtils.trueFileFilter()

            );

            Iterator<File> it = subfolders.iterator();

            if( it.hasNext() ) {

                f2 = it.next();

                return FileUtils.getFile(dbfolder, "EPSG",f2.getName());

            }

            fname = "EPSG" + File.separator + "EPSG_v8_5";

            logger.warn("Can't locate a EPSG database in '"+dbfolder+"' use '"+fname+"'.");

            return new File(fname);

        }

        private void initalizeHomeDB(PluginServices plugin) {

                File sourceDBFolder = new File(plugin.getPluginDirectory(), "db");

                File sourceProjLibFolder = new File(plugin.getPluginDirectory(), "projlib");

                File sourceEPSGFolder = new File(sourceDBFolder, "EPSG");

                File targetDBFolder = new File(plugin.getPluginHomeFolder(), "db");

                File targetProjLibFolder = new File(plugin.getPluginHomeFolder(), "projlib");

                File targetEPSGFolder = new File(targetDBFolder, "EPSG");

                if( !targetDBFolder.exists() ) {

                        try {

                                logger.info("Initializing CRS db in "+targetDBFolder.getAbsolutePath());

                                FileUtils.forceMkdir(targetDBFolder);

                                FileUtils.copyDirectory(sourceDBFolder, targetDBFolder);

                        } catch (IOException e) {

                                logger.error("Can't initilize the CRS database in the gvSIG home (src="+sourceDBFolder.getAbsolutePath()+",target="+targetDBFolder.getAbsolutePath()+").",e);

                                throw new RuntimeException(e);

                        }

                }

                if( !targetProjLibFolder.exists() ) {

                        try {

                                logger.info("Initializing PROJ_LIB folder in "+targetProjLibFolder.getAbsolutePath());

                                FileUtils.forceMkdir(targetProjLibFolder);

                                FileUtils.copyDirectory(sourceProjLibFolder, targetProjLibFolder);

                        } catch (IOException e) {

                                logger.error("Can't initilize the PROJ_LIB folder in the gvSIG home (src="+sourceProjLibFolder.getAbsolutePath()+",target="+targetProjLibFolder.getAbsolutePath()+").",e);

                                throw new RuntimeException(e);

                        }

                }

                if( !targetEPSGFolder.exists() ) {

                        try {

                                logger.info("Initializing EPSG database folder in "+targetEPSGFolder.getAbsolutePath());

                                FileUtils.forceMkdir(targetEPSGFolder);

                                FileUtils.copyDirectory(sourceEPSGFolder, targetEPSGFolder);

                        } catch (IOException e) {

                                logger.error("Can't initilize EPSG database folder in the gvSIG home (src="+sourceEPSGFolder.getAbsolutePath()+",target="+targetEPSGFolder.getAbsolutePath()+").",e);

                                throw new RuntimeException(e);

                        }

                }

        }

        protected void doPostInitialize() throws LibraryException {

        }

}