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.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 {

    /**

     * 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);

        }

        // Checks if the file contains the minumum attributes

        if (!properties.containsKey(InstallerInfoTags.CODE)) {

            throw new NotPropertyFoundException(InstallerInfoTags.CODE);

        }

        if (!properties.containsKey(InstallerInfoTags.NAME)) {

            throw new NotPropertyFoundException(InstallerInfoTags.NAME);

        }

        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);

        }

        installerInfoResource.setState(properties

            .getProperty(InstallerInfoTags.STATE));

        try {

            installerInfoResource.setOfficial(Boolean.parseBoolean(properties

                .getProperty(InstallerInfoTags.OFFICIAL)));

        } catch (Exception e) {

            installerInfoResource.setOfficial(false);

        }

        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);

        }

    }

}