//=============================================================================
//=== Copyright (C) 2001-2007 Food and Agriculture Organization of the
//=== United Nations (FAO-UN), United Nations World Food Programme (WFP)
//=== and United Nations Environment Programme (UNEP)
//===
//=== This program 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 2 of the License, or (at
//=== your option) any later version.
//===
//=== This program 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 this program; if not, write to the Free Software
//=== Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
//===
//=== Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
//=== Rome - Italy. email: geonetwork@osgeo.org
//==============================================================================
package org.fao.geonet.services.thumbnail;
import org.fao.geonet.exceptions.OperationAbortedEx;
import jeeves.server.ServiceConfig;
import jeeves.server.context.ServiceContext;
import org.fao.geonet.Util;
import org.fao.geonet.GeonetContext;
import org.fao.geonet.constants.Geonet;
import org.fao.geonet.constants.Params;
import org.fao.geonet.exceptions.ConcurrentUpdateEx;
import org.fao.geonet.kernel.DataManager;
import org.fao.geonet.lib.Lib;
import org.fao.geonet.services.NotInReadOnlyModeService;
import org.jdom.Element;
import java.io.File;
public class Unset extends NotInReadOnlyModeService {
//--------------------------------------------------------------------------
//---
//--- Init
//---
//--------------------------------------------------------------------------
public void init(String appPath, ServiceConfig params) throws Exception {}
//--------------------------------------------------------------------------
//---
//--- Service
//---
//--------------------------------------------------------------------------
public Element serviceSpecificExec(Element params, ServiceContext context) throws Exception {
String id = Util.getParam(params, Params.ID);
String type = Util.getParam(params, Params.TYPE);
String version = Util.getParam(params, Params.VERSION);
Lib.resource.checkEditPrivilege(context, id);
//-----------------------------------------------------------------------
//--- extract thumbnail filename
GeonetContext gc = (GeonetContext) context.getHandlerContext(Geonet.CONTEXT_NAME);
DataManager dataMan = gc.getBean(DataManager.class);
//--- check if the metadata has been modified from last time
if (version != null && !dataMan.getVersion(id).equals(version))
throw new ConcurrentUpdateEx(id);
Element result = dataMan.getThumbnails(context, id);
if (result == null)
throw new OperationAbortedEx("Metadata not found", id);
result = result.getChild(type);
if (result == null)
throw new OperationAbortedEx("Metadata has no thumbnail", id);
String file = Lib.resource.getDir(context, Params.Access.PUBLIC, id) + getFileName(result.getText());
//-----------------------------------------------------------------------
//--- remove thumbnail
dataMan.unsetThumbnail(context, id, type.equals("small"), true);
File thumbnail = new File(file);
if (thumbnail.exists()) {
if (!thumbnail.delete()) {
context.error("Error while deleting thumbnail: " + file);
}
} else {
if(context.isDebugEnabled())
context.debug("Thumbnail does not exist: " + file);
}
//-----------------------------------------------------------------------
Element response = new Element("a");
response.addContent(new Element("id").setText(id));
response.addContent(new Element("version").setText(dataMan.getNewVersion(id)));
return response;
}
//--------------------------------------------------------------------------
/**
* Return file name from full url thumbnail formated as
* http://wwwmyCatalogue.com:8080/srv/eng/resources.get?uuid=34baff6e-3880-4589-a5e9-4aa376ecd2a5&fname=snapshot3.png
* @param file
* @return
*/
private String getFileName(String file)
{
if(file.indexOf(FNAME_PARAM) < 0) {
return file;
}
else {
return file.substring(file.lastIndexOf(FNAME_PARAM)+FNAME_PARAM.length());
}
}
//--------------------------------------------------------------------------
//---
//--- Variables
//---
//--------------------------------------------------------------------------
private static final String FNAME_PARAM = "fname=";
}