| gvSIG desktop 1

/* 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;

import java.util.ArrayList;

import java.util.List;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.installer.lib.impl.execution.NotInstallerExecutionProviderException;

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

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

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

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynClass;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.dynobject.DynObjectManager;

import org.gvsig.tools.extensionpoint.ExtensionPoint;

import org.gvsig.tools.extensionpoint.ExtensionPointManager;

import org.gvsig.tools.service.Service;

import org.gvsig.tools.service.ServiceException;

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

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

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

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

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

/**

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

 */

public class DefaultInstallerProviderManager extends AbstractProviderManager

                implements InstallerProviderManager {

        public static final String PROVIDERS_NAMESPACE = "Installer.providers";

        public static final String PROVIDERS_NAME = "Installer.providers";

        public static final String PROVIDERS_DESCRIPTION = "Installer providers";

        private static Logger logger = LoggerFactory

                        .getLogger(DefaultInstallerProviderManager.class);

        private static final String INSTALL_INFO_FILE = "package.info";

        public DefaultInstallerProviderManager() {

                super();

        }

        @Override

        protected String getRegistryDescription() {

                return PROVIDERS_DESCRIPTION;

        }

        @Override

        protected String getRegistryKey() {

                return PROVIDERS_NAME;

        }

        public ProviderServices createProviderServices(Service service) {

                return new DefaultInstallerProviderServices();

        }

        public InstallPackageProvider createExecutionProvider(String providerName)

                        throws ServiceException {

                DynObjectManager dynObjectManager = ToolsLocator.getDynObjectManager();

                DynClass dynClass = dynObjectManager.get(providerName);

                if (dynClass == null) {

                        throw new NotRegisteredException(providerName);

                }

                DynObject serviceParameters = dynObjectManager

                                .createDynObject(dynClass);

                Provider provider = createProvider(serviceParameters,

                                new DefaultInstallerProviderServices());

                if (!(provider instanceof InstallPackageProvider)) {

                        throw new NotInstallerExecutionProviderException(providerName);

                }

                return (InstallPackageProvider) provider;

        }

        public InstallPackageProviderServices createInstallerProviderServices() {

                return new DefaultInstallerProviderServices();

        }

        public String getPackageInfoFileName() {

                return INSTALL_INFO_FILE;

        }

        @SuppressWarnings("unchecked")

        public List<ProviderFactory> getProviderFactories() {

                ExtensionPointManager epm = ToolsLocator.getExtensionPointManager();

                ExtensionPoint ep = epm.get(this.getRegistryKey());

                List<String> names = ep.getNames();

                List<ProviderFactory> factories = new ArrayList<ProviderFactory>();

                for (int i = 0; i < names.size(); i++) {

                        try {

                                factories.add((ProviderFactory) ep.create(names.get(i)));

                        } catch (InstantiationException e) {

                                logger.info("Cannot retreive the factory provider of "

                                                + names.get(i), e);

                        } catch (IllegalAccessException e) {

                                logger.info("Cannot retreive the factory provider of "

                                                + names.get(i), e);

                        }

                }

                return factories;

        }

}