/**
SpagoBI - The Business Intelligence Free Platform
Copyright (C) 2005-2009 Engineering Ingegneria Informatica S.p.A.
This library 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 library 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 library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
**/
package it.eng.spagobi.engines.georeport.features.provider;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Map;
import org.apache.log4j.Logger;
import org.mapfish.geo.MfFeatureCollection;
import org.mapfish.geo.MfGeoJSONReader;
import it.eng.spagobi.engines.georeport.features.SbiFeatureFactory;
import it.eng.spagobi.utilities.exceptions.SpagoBIRuntimeException;
/**
* @authors Andrea Gioia (andrea.gioia@eng.it), Fabio D'Ovidio (f.dovidio@inovaos.it)
*/
public class FeaturesProviderDAOWFSImpl implements IFeaturesProviderDAO {
public static final String LAYER_NAME = "layerName";
public static final String GEOID_PNAME = "geoIdPName";
public static final String GEOID_PVALUE = "geoIdPValue";
/** Logger component. */
private static transient Logger logger = Logger.getLogger(FeaturesProviderDAOWFSImpl.class);
public MfFeatureCollection getFeatures(Object fetureProviderEndPoint, Map parameters) {
MfFeatureCollection featureCollection;
String wfsUrl;
String layerName;
String geoIdPName;
String geoIdPValue;
URL url;
URLConnection connection;
try {
wfsUrl = (String)fetureProviderEndPoint;
layerName = (String)parameters.get(LAYER_NAME);
logger.debug("Parameter [" + LAYER_NAME + "] is equal to [" + layerName + "]");
geoIdPName = (String)parameters.get(GEOID_PNAME);
logger.debug("Parameter [" + GEOID_PNAME + "] is equal to [" + geoIdPName + "]");
geoIdPValue = (String)parameters.get(GEOID_PVALUE);
logger.debug("Parameter [" + GEOID_PVALUE + "] is equal to [" + geoIdPValue + "]");
wfsUrl += "?request=GetFeature" +
"&typename=" + layerName +
"&Filter=<Filter><PropertyIsEqualTo><PropertyName>"+ geoIdPName +"</PropertyName><Literal>"+ geoIdPValue +"</Literal></PropertyIsEqualTo></Filter>" +
"&outputformat=json" +
"&version=1.0.0";
String result = null;
// wfs call
url = new URL(wfsUrl);
connection = url.openConnection();
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(connection.getInputStream()));
StringBuffer sb = new StringBuffer();
String line;
while ((line = rd.readLine()) != null) {
sb.append(line);
}
rd.close();
result = sb.toString();
logger.debug("Result for query [" + geoIdPName + "=" + geoIdPValue+ "]is equal to [" + result + "]");
MfGeoJSONReader jsonReader = new MfGeoJSONReader(SbiFeatureFactory.getInstance());
featureCollection = (MfFeatureCollection) jsonReader.decode(result);
} catch(Throwable t){
throw new SpagoBIRuntimeException(t);
}finally {
}
return featureCollection;
}
}