//=============================================================================
//=== 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.main;
import jeeves.interfaces.Service;
import jeeves.server.ServiceConfig;
import jeeves.server.UserSession;
import jeeves.server.context.ServiceContext;
import org.fao.geonet.GeonetContext;
import org.fao.geonet.constants.Geonet;
import org.fao.geonet.kernel.SelectionManager;
import org.fao.geonet.kernel.search.LuceneSearcher;
import org.fao.geonet.kernel.search.MetaSearcher;
import org.fao.geonet.kernel.search.SearchManager;
import org.fao.geonet.services.util.SearchDefaults;
import org.jdom.Element;
//=============================================================================
/** main.search service. Perform a search
*/
public class Search implements Service
{
private ServiceConfig _config;
//--------------------------------------------------------------------------
//---
//--- Init
//---
//--------------------------------------------------------------------------
public void init(String appPath, ServiceConfig config) throws Exception
{
_config = config;
}
//--------------------------------------------------------------------------
//---
//--- Service
//---
//--------------------------------------------------------------------------
public Element exec(Element params, ServiceContext context) throws Exception
{
GeonetContext gc = (GeonetContext) context.getHandlerContext(Geonet.CONTEXT_NAME);
SearchManager searchMan = gc.getBean(SearchManager.class);
Element elData = SearchDefaults.getDefaultSearch(context, params);
String sRemote = elData.getChildText(Geonet.SearchResult.REMOTE);
boolean remote = sRemote != null && sRemote.equals(Geonet.Text.ON);
// Parse bbox & assign to four *BL params
Element bbox = elData.getChild(Geonet.SearchResult.BBOX);
Element westBL = elData.getChild(Geonet.SearchResult.WEST_BL);
Element southBL = elData.getChild(Geonet.SearchResult.SOUTH_BL);
Element eastBL = elData.getChild(Geonet.SearchResult.EAST_BL);
Element northBL = elData.getChild(Geonet.SearchResult.NORTH_BL);
if (bbox != null && westBL == null && southBL == null && eastBL == null && northBL == null) {
String bounds[] = bbox.getText().split(",");
if (bounds.length == 4) {
elData.addContent(new Element(Geonet.SearchResult.WEST_BL).addContent(bounds[0]));
elData.addContent(new Element(Geonet.SearchResult.SOUTH_BL).addContent(bounds[1]));
elData.addContent(new Element(Geonet.SearchResult.EAST_BL).addContent(bounds[2]));
elData.addContent(new Element(Geonet.SearchResult.NORTH_BL).addContent(bounds[3]));
}
}
// possibly close old searcher
UserSession session = context.getUserSession();
Object oldSearcher = session.getProperty(Geonet.Session.SEARCH_RESULT);
if (oldSearcher != null)
if (oldSearcher instanceof LuceneSearcher)
((LuceneSearcher)oldSearcher).close();
// possibly close old selection
SelectionManager oldSelection = (SelectionManager)session.getProperty(Geonet.Session.SELECTED_RESULT);
if (oldSelection != null){
oldSelection.close();
}
// perform the search and save search query into session
MetaSearcher searcher;
context.info("Creating searchers");
if (remote) searcher = searchMan.newSearcher(SearchManager.Z3950, Geonet.File.SEARCH_Z3950_CLIENT);
else searcher = searchMan.newSearcher(SearchManager.LUCENE, Geonet.File.SEARCH_LUCENE);
searcher.search(context, elData, _config);
if (remote && (searcher.getSize() == 0)) { // do it again for Z3950
searcher.search(context, elData, _config);
}
session.setProperty(Geonet.Session.SEARCH_RESULT, searcher);
session.removeProperty(Geonet.Session.SEARCH_REQUEST);
context.info("Getting summary");
return searcher.getSummary();
}
}
//=============================================================================