/**
* SpagoBI - The Business Intelligence Free Platform
*
* Copyright (C) 2004 - 2008 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.qbe.services.dataset;
import it.eng.spago.base.SourceBean;
import it.eng.spagobi.engines.qbe.QbeEngineConfig;
import it.eng.spagobi.engines.qbe.services.core.AbstractQbeEngineAction;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceException;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceExceptionHandler;
import it.eng.spagobi.utilities.exceptions.SpagoBIRuntimeException;
import it.eng.spagobi.utilities.service.JSONSuccess;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONObject;
/**
* The Class GetDatamartsNamesAction.
*
* @author Davide Zerbetto (davide.zerbetto@eng.it)
*/
public class GetDatamartsNamesAction extends AbstractQbeEngineAction {
// INPUT PARAMETERS
public static String CALLBACK = "callback";
// OUTPUT PARAMETERS
// SESSION PARAMETRES
// AVAILABLE PUBLISHERS
/** Logger component. */
private static transient Logger logger = Logger.getLogger(GetDatamartsNamesAction.class);
public static final String ENGINE_NAME = "SpagoBIQbeEngine";
public void service(SourceBean request, SourceBean response) {
logger.debug("IN");
try {
super.service(request, response);
List<String> datamartsName = getDatamartsName();
JSONArray array = new JSONArray();
Iterator<String> it = datamartsName.iterator();
while (it.hasNext()) {
String aDatamartName = it.next();
JSONObject temp = new JSONObject();
temp.put("datamart", aDatamartName);
array.put(temp);
}
String callback = getAttributeAsString( CALLBACK );
try {
if(callback == null) {
writeBackToClient( new JSONSuccess( array ));
} else {
writeBackToClient( new JSONSuccess( array, callback ));
}
} catch (IOException e) {
String message = "Impossible to write back the responce to the client";
throw new SpagoBIEngineServiceException(getActionName(), message, e);
}
} catch (Throwable t) {
throw SpagoBIEngineServiceExceptionHandler.getInstance().getWrappedException(getActionName(), getEngineInstance(), t);
} finally {
logger.debug("OUT");
}
}
private List<String> getDatamartsName() {
logger.debug("IN");
List<String> toReturn = new ArrayList<String>();
File datamartsDir = QbeEngineConfig.getInstance().getQbeDataMartDir();
File[] dirs = datamartsDir.listFiles(new FileFilter() {
public boolean accept(File pathname) {
if (pathname.isDirectory()) {
return true;
}
return false;
}
});
if (dirs == null || dirs.length == 0) {
throw new SpagoBIRuntimeException("No datamarts found!! Check configuration for datamarts repository");
}
for (int i = 0; i < dirs.length; i++) {
toReturn.add(dirs[i].getName());
}
logger.debug("OUT");
return toReturn;
}
}