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;

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;

    }

}