/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.webdav.command;
import org.exoplatform.common.http.HTTPStatus;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import javax.jcr.PathNotFoundException;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.lock.LockException;
import javax.ws.rs.core.CacheControl;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
/**
* Created by The eXo Platform SAS.
* @author Vitaly Guly - gavrikvetal@gmail.com
*
* @version $Id: $
*/
public class MoveCommand
{
/**
* Cache control object.
*/
private static CacheControl cacheControl = new CacheControl();
/**
* Logger.
*/
private static Log log = ExoLogger.getLogger("exo.jcr.component.webdav.MoveCommand");
/**
* Provides URI information needed for 'location' header in 'CREATED' response
*/
private final UriBuilder uriBuilder;
/**
* To trace if an item on destination path existed.
*/
private final boolean itemExisted;
// Fix problem with moving under Windows Explorer.
static
{
cacheControl.setNoCache(true);
}
/**
* Empty constructor
*/
public MoveCommand()
{
this.uriBuilder = null;
this.itemExisted = false;
}
/**
* Here we pass URI builder and info about pre-existence of item on the move
* destination path If an item existed, we must respond with NO_CONTENT (204)
* HTTP status.
* If an item did not exist, we must respond with CREATED (201) HTTP status
* More info can be found <a
* href=http://www.webdav.org/specs/rfc2518.html#METHOD_MOVE>here</a>.
* @param uriBuilder - provide data used in 'location' header
* @param itemExisted - indicates if an item existed on copy destination
*/
public MoveCommand(UriBuilder uriBuilder, boolean itemExisted)
{
this.uriBuilder = uriBuilder;
this.itemExisted = itemExisted;
}
/**
* Webdav Move method implementation.
*
* @param session current session.
* @param srcPath source resource path
* @param destPath destination resource path
* @return the instance of javax.ws.rs.core.Response
*/
public Response move(Session session, String srcPath, String destPath)
{
try
{
session.move(srcPath, destPath);
session.save();
// If the source resource was successfully moved
// to a pre-existing destination resource.
if (itemExisted)
{
return Response.status(HTTPStatus.NO_CONTENT).cacheControl(cacheControl).build();
}
// If the source resource was successfully moved,
// and a new resource was created at the destination.
else
{
if (uriBuilder != null)
{
return Response.created(uriBuilder.path(session.getWorkspace().getName()).path(destPath).build())
.cacheControl(cacheControl).build();
}
// to save compatibility if uriBuilder is not provided
return Response.status(HTTPStatus.CREATED).cacheControl(cacheControl).build();
}
}
catch (LockException exc)
{
return Response.status(HTTPStatus.LOCKED).entity(exc.getMessage()).build();
}
catch (PathNotFoundException exc)
{
return Response.status(HTTPStatus.CONFLICT).entity(exc.getMessage()).build();
}
catch (RepositoryException exc)
{
log.error(exc.getMessage(), exc);
return Response.serverError().entity(exc.getMessage()).build();
}
}
/**
* Webdav Move method implementation.
*
* @param sourceSession source session
* @param destSession destination session
* @param srcPath source resource path
* @param destPath destination resource path
* @return the instance of javax.ws.rs.core.Response
*/
public Response move(Session sourceSession, Session destSession, String srcPath, String destPath)
{
try
{
destSession.getWorkspace().copy(sourceSession.getWorkspace().getName(), srcPath, destPath);
sourceSession.getItem(srcPath).remove();
sourceSession.save();
// If the source resource was successfully moved
// to a pre-existing destination resource.
if (itemExisted)
{
return Response.status(HTTPStatus.NO_CONTENT).cacheControl(cacheControl).build();
}
// If the source resource was successfully moved,
// and a new resource was created at the destination.
else
{
if (uriBuilder != null)
{
return Response.created(uriBuilder.path(destSession.getWorkspace().getName()).path(destPath).build())
.cacheControl(cacheControl).build();
}
// to save compatibility if uriBuilder is not provided
return Response.status(HTTPStatus.CREATED).cacheControl(cacheControl).build();
}
}
catch (LockException exc)
{
return Response.status(HTTPStatus.LOCKED).entity(exc.getMessage()).build();
}
catch (PathNotFoundException exc)
{
return Response.status(HTTPStatus.CONFLICT).entity(exc.getMessage()).build();
}
catch (RepositoryException exc)
{
log.error(exc.getMessage(), exc);
return Response.serverError().entity(exc.getMessage()).build();
}
}
}