Application: gvSIG desktop

/* 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):

 * 2010 {Prodevelop}   {Task}

 */

package org.gvsig.installer.lib.impl.info;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.net.MalformedURLException;

import java.net.URL;

import java.util.Properties;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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

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

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera Llodr&aacute;</a>

 */

public class InstallerInfoFileReader {

    private static final Logger LOG = LoggerFactory

        .getLogger(InstallerInfoFileReader.class);

        /**

         * Reads and parses the install.info file and creates one object that

         * contains the information.

         * 

         * @param fileName

         *            The file name that contains the install.info information.

         * @return An object with the information about the installation

         * @throws InstallerInfoFileException

         */

        public void read(PackageInfo installerInfoResource, String fileName)

                        throws InstallerInfoFileException {

                read(installerInfoResource, new File(fileName));

        }

        /**

         * Reads and parses the install.info file and creates one object that

         * contains the information.

         * 

         * @param file

         *            The file that contains the install.info information.

         * @return An object with the information about the installation

         * @throws InstallerInfoFileException

         */

        public void read(PackageInfo installerInfoResource, File file)

                        throws InstallerInfoFileException {

                if (!file.exists()) {

                        throw new InstallerInfoFileException("install_infofile_not_found");

                }

                try {

                        read(installerInfoResource, new FileInputStream(file));

                } catch (FileNotFoundException e) {

                        throw new InstallerInfoFileException("install_infofile_not_found",

                                        e);

                }

        }

        /**

         * Reads and parses the install.info file and creates one object that

         * contains the information.

         * 

         * @param is

         *            The input stream that contains the install.info information.

         * @return An object with the information about the installation

         * @throws InstallerInfoFileException

         */

        public void read(PackageInfo installerInfoResource, InputStream is)

                        throws InstallerInfoFileException {

                Properties properties = new Properties();

                try {

                        properties.load(is);

                        is.close();

                } catch (IOException e) {

                        throw new InstallerInfoFileException(

                                        "install_infofile_reading_error", e);

                }

                installerInfoResource.setCode(properties

                                .getProperty(InstallerInfoTags.CODE));

                installerInfoResource.setName(properties

                                .getProperty(InstallerInfoTags.NAME));

                installerInfoResource.setDescription(properties

                                .getProperty(InstallerInfoTags.DESCRIPTION));

                installerInfoResource.setVersion(properties

                                .getProperty(InstallerInfoTags.VERSION));

                installerInfoResource.setType(properties

                                .getProperty(InstallerInfoTags.TYPE));

                String build = properties.getProperty(InstallerInfoTags.BUILD);

                try {

                        installerInfoResource.setBuild(Integer.parseInt(build));

                } catch (Exception e) {

                        installerInfoResource.setBuild(0);

            LOG.warn("Error while converting to int the "

                + InstallerInfoTags.BUILD + " property value: " + build, e);

                }

        // Look for the old build tag just in case (the new one is buildNumber).

        if (installerInfoResource.getBuild() <= 0) {

            String oldBuild =

                properties.getProperty(InstallerInfoTags.BUILD_OLD);

            if (oldBuild != null) {

                try {

                    installerInfoResource.setBuild(Integer

                        .parseInt(oldBuild));

                } catch (Exception e) {

                    installerInfoResource.setBuild(0);

                    LOG.warn("Error while converting to int the "

                        + InstallerInfoTags.BUILD_OLD + " property value: "

                        + oldBuild, e);

                }

            }

        }

                installerInfoResource.setState(properties

                                .getProperty(InstallerInfoTags.STATE));

        try {

            installerInfoResource.setOfficial(Boolean.parseBoolean(properties

                .getProperty(InstallerInfoTags.OFFICIAL)));

        } catch (Exception e) {

            installerInfoResource.setOfficial(false);

            LOG.warn(

                "Error while converting to boolean the "

                    + InstallerInfoTags.OFFICIAL + " property value: "

                    + properties.getProperty(InstallerInfoTags.OFFICIAL), e);

        }

                String os = properties.getProperty(InstallerInfoTags.OS);

                if (os != null) {

                        installerInfoResource.setOperatingSystem(os);

                }

                String arch = properties.getProperty(InstallerInfoTags.ARCHITECTURE);

                if (arch != null) {

                        installerInfoResource.setArchitecture(arch);

                }

                String jvm = properties.getProperty(InstallerInfoTags.JVM);

                if (jvm != null) {

                        installerInfoResource.setJavaVM(jvm);

                }

                installerInfoResource.setGvSIGVersion(properties

                                .getProperty(InstallerInfoTags.GVSIG_VERSION));

                String urlStr = properties.getProperty(InstallerInfoTags.DOWNLOAD_URL);

                if (urlStr != null) {

                        URL downloadURL;

                        try {

                                downloadURL = new URL(urlStr);

                        } catch (MalformedURLException e) {

                                throw new InstallerInfoFileException(

                                                "Error getting the value of the download url property as URL: "

                                                                + urlStr, e);

                        }

                        installerInfoResource.setDownloadURL(downloadURL);

                }

                String modelVersion = properties

                                .getProperty(InstallerInfoTags.MODEL_VERSION);

                if (modelVersion != null) {

                        installerInfoResource.setModelVersion(modelVersion);

                }

        }

}