//=============================================================================
//=== Copyright (C) 2001-2014 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 jeeves.server.ServiceConfig;
import jeeves.server.context.ServiceContext;
import org.apache.commons.io.FileUtils;
import org.fao.geonet.GeonetContext;
import org.fao.geonet.Util;
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.kernel.thumbnail.ThumbnailMaker;
import org.fao.geonet.lib.Lib;
import org.fao.geonet.services.NotInReadOnlyModeService;
import org.fao.geonet.utils.IO;
import org.jdom.Element;
import java.io.File;
public class Generate extends NotInReadOnlyModeService {
public void init(String appPath, ServiceConfig params) throws Exception {
}
public Element serviceSpecificExec(Element params, ServiceContext context)
throws Exception {
String id = Util.getParam(params, Params.ID);
String version = Util.getParam(params, Params.VERSION);
String file = Util.getParam(params, Params.NAME, "thumbnail.png");
String jsonConfig = Util.getParam(params, "config");
String rotation = Util.getParam(params, "rotation", null);
Integer rotationAngle = null;
try {
rotationAngle = Integer.valueOf(rotation);
} catch (NumberFormatException e) {
e.printStackTrace();
}
Lib.resource.checkEditPrivilege(context, id);
GeonetContext gc = (GeonetContext) context.getHandlerContext(Geonet.CONTEXT_NAME);
DataManager dataMan = gc.getBean(DataManager.class);
ThumbnailMaker thumbnailMaker = gc.getBean(ThumbnailMaker.class);
//--- check if the metadata has been modified from last time
if (version != null && !dataMan.getVersion(id).equals(version)) {
throw new ConcurrentUpdateEx(id);
}
File thumbnailFile = thumbnailMaker.generateThumbnail(
jsonConfig,
rotationAngle);
//--- create destination directory
String dataDir = Lib.resource.getDir(context, Params.Access.PUBLIC, id);
IO.mkdirs(new File(dataDir), "Metadata data directory");
File outFile = new File(dataDir, file);
if (outFile.exists() && !outFile.delete()) {
throw new Exception("Unable to overwrite existing file: " + outFile);
}
try {
FileUtils.moveFile(thumbnailFile, outFile);
} catch (Exception e) {
IO.delete(thumbnailFile, false, context);
throw new Exception(
"Unable to move uploaded thumbnail to destination: "
+ outFile + ". Error: " + e.getMessage());
}
dataMan.setThumbnail(context, id, false, file, false);
dataMan.indexMetadata(id, false);
Element response = new Element("a");
response.addContent(new Element("id").setText(id));
response.addContent(new Element("version").setText(dataMan.getNewVersion(id)));
return response;
}
}