org.kalypso.project.database.server.ProjectDatabaseHelper.java Source code

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Here is the source code for org.kalypso.project.database.server.ProjectDatabaseHelper.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 * 
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 * 
 *  and
 *  
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 * 
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 * 
 *  This library 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
 *  Lesser General Public License for more details.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 *  Contact:
 * 
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *   
 *  ---------------------------------------------------------------------------*/
package org.kalypso.project.database.server;

import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.apache.commons.vfs2.FileSystemManager;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.kalypso.commons.io.VFSUtilities;
import org.kalypso.contribs.eclipse.core.runtime.StatusUtilities;
import org.kalypso.project.database.IProjectDataBaseServerConstant;
import org.kalypso.project.database.KalypsoProjectDatabase;
import org.kalypso.project.database.common.utils.ProjectModelUrlResolver;
import org.kalypso.project.database.sei.beans.KalypsoProjectBean;

class ProjectDatabaseHelper {

    protected static String resolveDestinationUrl(final KalypsoProjectBean bean) {
        return ProjectModelUrlResolver.getUrlAsFtp(new ProjectModelUrlResolver.IResolverInterface() {
            @Override
            public String getPath() {
                return System.getProperty(IProjectDataBaseServerConstant.SERVER_PROJECT_PATH);
            }
        }, String.format("%s/%d/project.zip", bean.getUnixName(), bean.getProjectVersion())); //$NON-NLS-1$
    }

    protected static Boolean removeBean(final Session session, final KalypsoProjectBean bean) {
        try {
            final FileSystemManager manager = VFSUtilities.getManager();

            /* remove file from server */
            // destination webdav url of bean
            final String urlBean = ProjectDatabaseHelper.resolveDestinationUrl(bean);
            final FileObject fileBean = manager.resolveFile(urlBean);
            if (fileBean.exists()) {
                fileBean.delete();
            }

            final FileObject parentFolder = fileBean.getParent();
            if (parentFolder.exists()) {
                parentFolder.delete();
            }

            /* delete database entry */
            final Transaction tx = session.beginTransaction();
            session.delete(bean);
            tx.commit();

            return true;
        } catch (final FileSystemException e) {
            KalypsoProjectDatabase.getDefault().getLog().log(StatusUtilities.statusFromThrowable(e));
        }

        return false;

    }

}