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.spi;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.URL;

import java.util.List;

import java.util.Map;

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

import org.gvsig.installer.lib.api.creation.MakePluginPackageServiceException;

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

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

/**

 * Services that can be used by the providers to create or exceute the bundle.

 * It

 * contains methods to compress and to decompress files and methods to

 * read an install a package file from a directory.

 * 

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

 */

public interface InstallPackageProviderServices extends ProviderServices {

    /**

     * It decompress an input stream and write it on a directory.

     * 

     * @param is

     *            The input stream to decompress

     * @param outputDirectory

     *            .

     *            The output directory.

     * @throws InstallPackageServiceException

     *             If there is a problem decompressing the stream.

     */

    public void decompress(InputStream is, File outputDirectory)

        throws InstallPackageServiceException;

    /**

     * Compress a directory like an zipped outputstream with a concrete name.

     * 

     * @param directory

     *            the directory to compress.

     * @param fileName

     *            name of the zip entry that has the output file.

     *            The name that have to have

     * @param os

     *            output stream to write the output.

     * @throws MakePluginPackageServiceException

     *             if there is any problem compressing.

     */

    public void compress(File directory, String fileName, OutputStream os)

        throws MakePluginPackageServiceException;

    /**

     * Reads the package.info file from a directory a fills the the properties

     * of the {@link PackageInfo} object.

     * 

     * @param directory

     *            the root directory that contains the installinfo file

     * @param installInfo

     *            the installinfo file that has to be filled.

     * @throws InstallerInfoFileException.

     *         if there is any problem reading the file

     */

    public void readPackageInfo(File directory, PackageInfo installerInfo)

        throws InstallerInfoFileException;

    /**

     * Reads the package.info file from a bundle fills the the properties

     * of the {@link PackageInfo} objects.

     * 

     * @param is

     *            the input stream of a bundle.

     * @param packageInfos

     *            a list of the information of the packages to install.

     * @param zipEntriesMap

     *            a map to retrieve the zipEntry for every package. This

     *            information is necessary to

     *            select the plugin to decompress.

     * @throws InstallPackageServiceException

     *             if there is a problem reading the bundle.

     */

    public void readPackageInfo(InputStream is, List<PackageInfo> packageInfos,

        Map<PackageInfo, String> zipEntriesMap)

        throws InstallPackageServiceException;

    /**

     * Writes the package.info file in a concrete directory.

     * 

     * @param directory

     *            the directory.

     * @param packageInfo

     *            the information to write.

     * @throws InstallerInfoFileException

     *             if there is any problem writing the package.info file.

     */

    public void writePackageInfo(File directory, PackageInfo packageInfo)

        throws InstallerInfoFileException;

    /**

     * It search a package inside an installer file by the zip name and returns

     * the stream in this position ready to decompres.

     * 

     * @param is

     *            the input stream of a bundle.

     * @param zipEntry

     *            the name of the zip entry.

     * @return

     *         the input stream ready to install.

     * @throws InstallPackageServiceException

     *             if there is a problem reading the stream

     */

    public InputStream searchPackage(InputStream is, String zipEntry)

        throws InstallPackageServiceException;

    /**

     * It reads a compressed file and retrieve the package information.

     * 

     * @param is

     *            the compressed file

     * @return

     *         the information of the package

     * @throws InstallPackageServiceException

     *             if there is a problem decompressing the file.

     */

    public PackageInfo readCompressedPackageInfo(InputStream is)

        throws InstallPackageServiceException;

    /**

     * Downloads a temporal file from the given {@link URL}.

     * 

     * @param fileURL

     *            to download the file from

     * @param defaultFileName

     *            default name for the file. If the URL ends with / the file

     *            name will be appended to the URL. If null it will be ignored

     * @return the temporal downloaded file

     * @throws IOException

     *             if there is an error downloading the file

     */

    public File downloadFile(URL fileURL, String defaultFileName)

        throws IOException;

}