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.execution;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.InputStream;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

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

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

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

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

import org.gvsig.installer.lib.impl.DefaultInstallerManager;

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

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

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

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

import org.gvsig.tools.service.Manager;

import org.gvsig.tools.service.ServiceException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

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

 */

public class DefaultInstallerExecutionService implements InstallerExecutionService{

        private Map<InstallerInfo, File> installFilesMap = null;

        private Map<InstallerInfo, String> zipEntriesMap = null;

        private List<InstallerInfo> installerInfos = null;        

        private Manager manager;        

        private int pluginToInstallIndex = -1;

        private File applicationDirectory;

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

        private InstallerProviderServices installerProviderServices = null;

        public DefaultInstallerExecutionService(DefaultInstallerManager manager) {

                super();

                this.manager = manager;

                installFilesMap = new HashMap<InstallerInfo, File>();

                installerInfos = new ArrayList<InstallerInfo>();

                zipEntriesMap = new HashMap<InstallerInfo, String>();

                installerProviderServices = InstallerProviderLocator.getProviderManager().createInstallerProviderServices();

        }

        public void executeInstaller()

        throws InstallerExecutionServiceException {        

                if (pluginToInstallIndex == -1){

                        throw new InstallerExecutionServiceException("not_installer_selected");

                }

                if (!installFilesMap.containsKey(installerInfos.get(pluginToInstallIndex))){

                        throw new InstallerExecutionServiceException("file_not_found_use_execute_installer_with_stream");

                }

                File file = installFilesMap.get(installerInfos.get(pluginToInstallIndex));

                try {

                        executeInstaller(new FileInputStream(file));

                } catch (FileNotFoundException e) {

                        throw new InstallerExecutionServiceException("file_not_found");

                }

        }

        public void executeInstaller(InputStream inputStream) throws InstallerExecutionServiceException{

                if (pluginToInstallIndex == -1){

                        throw new InstallerExecutionServiceException("not_installer_selected");

                }

                if ((applicationDirectory == null) || (!applicationDirectory.exists())){

                        throw new InstallerExecutionServiceException("not_valid_application_directory_selected");

                }

                //Execute the installer

                InstallerExecutionProvider installerExecutionProvider = createProvider(pluginToInstallIndex);

                InstallerInfo instalerInfo = installerInfos.get(pluginToInstallIndex);

                InputStream is = installerProviderServices.searchPlugin(inputStream,zipEntriesMap.get(instalerInfo));        

                installerExecutionProvider.install(applicationDirectory, is);                        

        }        

        private InstallerExecutionProvider createProvider(int index) throws InstallerExecutionServiceException {

                InstallerProviderManager installerProviderManager = (InstallerProviderManager)((DefaultInstallerManager)manager).getProviderManager();                

                try {

                        return installerProviderManager.createExecutionProvider(installerInfos.get(index).getType());                                

                } catch (ServiceException e) {

                        throw new InstallerExecutionServiceException("Error creating the provider", e);

                }                        

        }                

        public InstallerInfo getPluginInfoAt(int index) {

                if (installerInfos == null){

                        return null;

                }

                return installerInfos.get(index);        

        }

        public void addInstaller(InputStream inputStream) throws InstallerExecutionServiceException {

                installerProviderServices.readInstallInfo(inputStream, installerInfos, zipEntriesMap);

        }        

        public void setApplicationDirectory(File applicationDirectory) throws InstallerExecutionServiceException{

                if (!applicationDirectory.isDirectory()){

                        throw new InstallerExecutionServiceException("The application directory has to be a directory");

                }

                this.applicationDirectory = applicationDirectory;                

        }

        public void addInstallersFromInstallDirectory()

        throws InstallerExecutionServiceException {

                if (applicationDirectory != null){

                        File installDirectory = getInstallDirectory();

                        if (installDirectory.exists()){

                                File[] files = installDirectory.listFiles();

                                int from = installerInfos.size();                

                                for (int i=0 ; i<files.length ; i++){

                                        try {                                                

                                                addInstaller(new FileInputStream(files[i]));                                                

                                        } catch (FileNotFoundException e) {

                                                logger.error("File not found", e);

                                        }

                                }                                        

                                for (int i=0 ; i<files.length ; i++){

                                        installFilesMap.put(installerInfos.get(from+i), files[i]);

                                }

                        }        

                }

        }

        public void deleteInstallers() {

                installFilesMap.clear();

                installerInfos.clear();                

        }

        private File getInstallDirectory(){

                return new File(applicationDirectory.getAbsolutePath() + File.separator + "install");

        }

        public int getPluginsSize() {

                if (installerInfos == null){

                        return 0;

                }

                return installerInfos.size();

        }

        InstallerInfo getSelectedInstallerInfo(){

                if (pluginToInstallIndex == -1){

                        return null;

                }

                return installerInfos.get(pluginToInstallIndex);

        }

        public void setPluginToInstall(int index) throws InstallerExecutionServiceException{

                if (index > installerInfos.size()){

                        throw new InstallerExecutionServiceException("The plugin doesn't exist");

                }

                pluginToInstallIndex = index;

        }

        public Manager getManager() {

                return this.manager;

        }

        public void setPluginToInstall(String code) throws InstallerExecutionServiceException {

                int selectedCode = -1;

                for (int i=0 ; i<getPluginsSize() ; i++){

                        if (installerInfos.get(i).getCode().equals(code)){

                                selectedCode = i;

                                break;

                        }

                }

                if (selectedCode == -1){

                        throw new InstallerExecutionServiceException("The plugin doesn't exist");                

                }

                pluginToInstallIndex = selectedCode;

        }

}