/**
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.console.services;
import java.io.IOException;
import org.apache.log4j.Logger;
import org.json.JSONObject;
import com.jamonapi.Monitor;
import com.jamonapi.MonitorFactory;
import it.eng.spago.base.SourceBean;
import it.eng.spagobi.commons.utilities.StringUtilities;
import it.eng.spagobi.services.proxy.DataSetServiceProxy;
import it.eng.spagobi.tools.dataset.bo.IDataSet;
import it.eng.spagobi.tools.dataset.common.datastore.IDataStore;
import it.eng.spagobi.tools.dataset.common.datawriter.JSONDataWriter;
import it.eng.spagobi.utilities.assertion.Assert;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceExceptionHandler;
import it.eng.spagobi.utilities.exceptions.SpagoBIServiceException;
import it.eng.spagobi.utilities.service.JSONSuccess;
/**
* @author Antonella Giachino (antonella.giachino@eng.it)
*/
public class ExecuteDataSetAction extends AbstractConsoleEngineAction {
public static final String SERVICE_NAME = "EXECUTE_DATASET";
// request parameters
public static String DATASET_LABEL = "ds_label";
public static String USER_ID = "userId";
public static String CALLBACK = "callback";
// logger component
private static Logger logger = Logger.getLogger(ExecuteDataSetAction.class);
public void service(SourceBean request, SourceBean response) {
String dataSetLabel;
String user;
String callback;
IDataSet dataSet;
IDataStore dataStore;
JSONObject dataSetJSON;
logger.debug("IN");
Monitor monitor =MonitorFactory.start("SpagoBI_Console.ExecuteDataSetAction.service");
try {
super.service(request,response);
dataSetLabel = getAttributeAsString( DATASET_LABEL );
logger.debug("Parameter [" + DATASET_LABEL + "] is equals to [" + dataSetLabel + "]");
Assert.assertTrue(!StringUtilities.isEmpty( dataSetLabel ), "Parameter [" + DATASET_LABEL + "] cannot be null or empty");
callback = getAttributeAsString( CALLBACK );
logger.debug("Parameter [" + CALLBACK + "] is equals to [" + callback + "]");
dataSet = null;
try {
dataSet = getDataSet(dataSetLabel);
} catch(Throwable t) {
throw new SpagoBIServiceException("Impossible to find a dataset whose label is [" + dataSetLabel + "]", t);
}
Assert.assertNotNull(dataSet, "Impossible to find a dataset whose label is [" + dataSetLabel + "]");
Monitor monitorLD =MonitorFactory.start("SpagoBI_Console.ExecuteDataSetAction.service.LoadData");
dataSet.loadData();
monitorLD.stop();
dataStore = dataSet.getDataStore();
Assert.assertNotNull(dataStore, "The dataStore returned by loadData method of the class [" + dataSet.getClass().getName()+ "] cannot be null");
dataSetJSON = null;
try {
JSONDataWriter writer = new JSONDataWriter();
dataSetJSON = (JSONObject)writer.write(dataStore);
} catch (Throwable e) {
throw new SpagoBIServiceException("Impossible to serialize datastore", e);
}
try {
writeBackToClient( new JSONSuccess( dataSetJSON, callback ) );
} catch (IOException e) {
throw new SpagoBIServiceException("Impossible to write back the responce to the client", e);
}
} catch (Throwable t) {
throw SpagoBIEngineServiceExceptionHandler.getInstance().getWrappedException(getActionName(), getEngineInstance(), t);
} finally {
monitor.stop();
logger.debug("OUT");
}
}
private IDataSet getDataSet(String label) {
IDataSet dataSet;
DataSetServiceProxy datasetProxy;
datasetProxy = getConsoleEngineInstance().getDataSetServiceProxy();
dataSet = datasetProxy.getDataSetByLabel(label);
return dataSet;
}
}