package org.jtheque.core.utils.file.jt.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.Managers;

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

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

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

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

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

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

 import org.jtheque.utils.bean.Version;

 import org.jtheque.utils.collections.CollectionUtils;

 import org.jtheque.utils.io.FileException;

 import org.jtheque.utils.io.FileUtils;

 import java.io.DataInputStream;

 import java.io.IOException;

 import java.util.Collection;

 /**

  * A JTD File's header.

  *

  * @author Baptiste Wicht

  */

 public final class JTDFileReader extends JTFileReader {

     private final Collection<BackupReader> readers;

     /**

      * Construct a new JTD file reader.

      *

      * @param readers The readers.

      */

     public JTDFileReader(Collection<BackupReader> readers) {

         this.readers = CollectionUtils.copyOf(readers);

     }

     @Override

     public JTFile readFile(DataInputStream stream) throws FileException {

         JTNotZippedFile file = new JTDFile();

         try {

             AbstractJTFileHeader header = file.getHeader();

             header.setKey(Managers.getManager(IFileManager.class).formatUTFToRead(stream.readUTF()));

             header.setVersionJTheque(new Version(Managers.getManager(IFileManager.class).formatUTFToRead(stream.readUTF())));

             header.setFileVersion(stream.readInt());

             header.setDate(stream.readInt());

             if (stream.readLong() != IFileManager.JT_CATEGORY_SEPARATOR) {

                 file.setCorrectSeparators(false);

             }

             for (BackupReader reader : readers) {

                 reader.readBackup(stream);

             }

         } catch (IOException e) {

             throw new FileException("File corrupted", e);

         } finally {

             FileUtils.close(stream);

         }

         return file;

     }

 }