package org.jtheque.core.managers.file.impl;

 /*

  * This file is part of JTheque.

  *

  * JTheque 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 3 of the License.

  *

  * JTheque 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 JTheque.  If not, see <http://www.gnu.org/licenses/>.

  */

 import org.jtheque.core.managers.file.IFileManager.JTDVersion;

 import org.jtheque.core.managers.file.able.BackupReader;

 import org.jtheque.core.managers.file.able.FileType;

 import org.jtheque.core.managers.file.able.Restorer;

 import org.jtheque.core.utils.file.jt.JTFileReader;

 import org.jtheque.core.utils.file.jt.able.JTNotZippedFile;

 import org.jtheque.core.utils.file.jt.impl.JTDFileReader;

 import org.jtheque.utils.io.FileException;

 import java.io.File;

 import java.util.Collection;

 /**

  * A Restorer for the JTD format.

  *

  * @author Baptiste Wicht

  */

 public final class JTDRestorer implements Restorer {

     @Override

     public void restore(File file, Collection<BackupReader> readers) throws FileException {

         JTFileReader reader = new JTDFileReader(readers);

         JTNotZippedFile jtdFile = (JTNotZippedFile) reader.readFile(file);

         if (jtdFile.isValid()) {

             for (BackupReader r : readers) {

                 r.persistTheData();

             }

         } else if (jtdFile.getHeader().getFileVersion() != JTDVersion.FIRST.ordinal()) {

             throw new FileException("Unsupported version");

         } else {

             throw new FileException("Invalid file");

         }

     }

     @Override

     public boolean canImportFrom(FileType fileType) {

         return fileType == FileType.JTD;

     }

 }