/*
* This file is part of the OSMembrane project.
* More informations under www.osmembrane.de
*
* The project is licensed under the GNU GENERAL PUBLIC LICENSE 3.0.
* for more details about the license see http://www.osmembrane.de/license/
*
* Source: $HeadURL$ ($Revision$)
* Last changed: $Date$
*/
package de.osmembrane.model.persistence;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.URL;
import java.util.Observable;
import de.osmembrane.Application;
import de.osmembrane.exceptions.ControlledException;
import de.osmembrane.exceptions.ExceptionSeverity;
import de.osmembrane.model.persistence.FileException.Type;
import de.osmembrane.tools.Tools;
/**
* Saves the OSMembrane Pipeline into a file.
*
* @author jakob_jarosch
*/
public class OSMembranePersistence extends AbstractPersistence {
/**
* Creates a new {@link OSMembranePersistence} object and starts the
* internal thread.
*/
public OSMembranePersistence() {
}
@Override
public void save(URL file, Object data) throws FileException {
if (!(data instanceof PipelinePersistenceObject)) {
Application.handleException(new ControlledException(this,
ExceptionSeverity.UNEXPECTED_BEHAVIOR,
"OSMembranePersistence#save() got a wrong"
+ " object, object is the following instance:\n"
+ data.getClass()));
}
try {
FileOutputStream fos = new FileOutputStream(Tools.urlToFile(file));
BufferedOutputStream bos = new BufferedOutputStream(fos);
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(data);
oos.close();
bos.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
throw new FileException(Type.NOT_WRITABLE, e);
}
}
@Override
public Object load(URL file) throws FileException {
try {
BufferedInputStream bis = new BufferedInputStream(file.openStream());
ObjectInputStream ois = new ObjectInputStream(bis);
PipelinePersistenceObject object = (PipelinePersistenceObject) ois
.readObject();
ois.close();
bis.close();
return object;
} catch (FileNotFoundException e) {
throw new FileException(Type.NOT_FOUND, e);
} catch (IOException e) {
throw new FileException(Type.NOT_READABLE, e);
} catch (ClassNotFoundException e) {
throw new FileException(Type.WRONG_FORMAT, e);
} catch (ClassCastException e) {
throw new FileException(Type.WRONG_FORMAT, e);
}
}
@Override
public synchronized void update(Observable o, Object arg) {
}
}