Application: gvSIG desktop » gvSIG projections

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.crs.installer;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.MalformedURLException;

import java.util.zip.ZipEntry;

import java.util.zip.ZipException;

import java.util.zip.ZipInputStream;

import org.apache.commons.io.FileUtils;

import org.apache.commons.io.FilenameUtils;

import org.gvsig.andami.LocaleManager;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.PluginsLocator;

import org.gvsig.andami.PluginsManager;

import org.gvsig.crs.CrsFactory;

import org.gvsig.crs.JCrsExtension;

import org.gvsig.installer.lib.api.PackageInfo;

import org.gvsig.installer.lib.api.execution.InstallPackageServiceException;

import org.gvsig.installer.lib.spi.InstallerInfoFileException;

import org.gvsig.installer.lib.spi.execution.InstallPackageProvider;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.service.spi.AbstractProvider;

import org.gvsig.tools.service.spi.ProviderServices;

import org.gvsig.tools.task.SimpleTaskStatus;

import org.gvsig.tools.task.TaskStatusManager;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class EPSGDatabaseInstaller extends AbstractProvider implements InstallPackageProvider {

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

    private int BUFFER = 2048;

    public EPSGDatabaseInstaller(ProviderServices providerServices) {

        super(providerServices);

    }

    public void install(File applicationFolder, InputStream inputStream, PackageInfo packageInfo) throws InstallPackageServiceException {

        PluginsManager pluginsManager = PluginsLocator.getManager();

        File i18nFolder = pluginsManager.getApplicationI18nFolder();

        File epsgDatabaseFolder = new File(CrsFactory.getDataBaseFolder(),"EPSG");

        logger.info("Installing package '" + packageInfo.getCode() + "' in '" + epsgDatabaseFolder.getAbsolutePath() + "'.");

        try {

            FileUtils.forceMkdir(epsgDatabaseFolder);

            decompress(inputStream, epsgDatabaseFolder);

            activateThisDataBase(packageInfo);

        } catch (Exception e) {

            try {

                logger.warn("Can install package '" + packageInfo.getCode() + "'.", e);

                // if there is an exception, installLater is called

                installLater(applicationFolder, inputStream, packageInfo);

            } catch (IOException e1) {

                logger.warn("Can install package '" + packageInfo.getCode() + "'.", e1);

                throw new InstallPackageServiceException(e1);

            }

        }

    }

    private void activateThisDataBase(PackageInfo packageInfo) {

        String dbentry = "EPSG/" + packageInfo.getCode() + "/EPSG.sql";

        File f = new File(CrsFactory.getDataBaseFolder(),dbentry);

        if( !f.exists() ) {

            logger.warn("Can't activate EPSG database, problems locating in '"+f.getAbsolutePath()+"'.");

            return;

        }

        PluginsManager pluginManager = PluginsLocator.getManager();

        PluginServices plugin = pluginManager.getPlugin(this);

        DynObject pluginProperties = plugin.getPluginProperties();

        pluginProperties.setDynValue("epsgDatabase", dbentry);

        plugin.savePluginProperties();    

    }

    private void decompress(InputStream inputStream, File folder)

            throws ZipException, IOException, InstallerInfoFileException {

        ZipInputStream zis = null;

        ZipEntry entry = null;

        byte data[] = new byte[BUFFER];

        int count = 0;

        TaskStatusManager manager = ToolsLocator.getTaskStatusManager();

        SimpleTaskStatus taskStatus = manager.createDefaultSimpleTaskStatus("Uncompressing...");

        manager.add(taskStatus);

        String entryName = "(header)";

        try {

            long readed = 0;

            zis = new ZipInputStream(inputStream);

            while ( (entry = zis.getNextEntry()) != null ) {

                entryName = FilenameUtils.separatorsToSystem(entry.getName());

                taskStatus.message(entryName);

                File file = new File(folder, entryName);

                if ( entry.isDirectory() ) {

                    file.mkdirs();

                } else {

                    if ( file.exists() ) {

                        FileUtils.forceDelete(file);

                    }

                    if ( !file.getParentFile().exists() ) {

                        FileUtils.forceMkdir(file.getParentFile());

                    }

                    logger.debug("extracting " + file.getAbsolutePath());

                    FileOutputStream fos = new FileOutputStream(file);

                    while ( (count = zis.read(data, 0, BUFFER)) != -1 ) {

                        fos.write(data, 0, count);

                        readed += count;

                        taskStatus.setCurValue(readed);

                    }

                    fos.flush();

                    fos.close();

                }

            }

            zis.close();

        } catch (IOException ex) {

            logger.warn("Problems uncompresing 'EPSG database' (last entry '" + entryName + "'.", ex);

            throw ex;

        } catch (RuntimeException ex) {

            logger.warn("Problems uncompresing 'EPSG database' (last entry '" + entryName + "'.", ex);

            throw ex;

        } finally {

            taskStatus.remove();

        }

    }

    public void installLater(File applicationDirectory, InputStream inputStream, PackageInfo packageInfo) throws InstallPackageServiceException, IOException {

        logger.warn("installLater is not implementes.");

    }

}