/**
* 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.core.catalogue;
import it.eng.qbe.query.Query;
import it.eng.spago.base.SourceBean;
import it.eng.spagobi.engines.qbe.services.core.AbstractQbeEngineAction;
import it.eng.spagobi.utilities.assertion.Assert;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceException;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceExceptionHandler;
import it.eng.spagobi.utilities.service.JSONAcknowledge;
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;
/**
* Remove from the catalogue queries whose ids has been passed as argument to the service.
*
* @author Andrea Gioia (andrea.gioia@eng.it)
*/
public class DeleteQueriesAction extends AbstractQbeEngineAction {
public static final String SERVICE_NAME = "DELETE_QUERIES_ACTION";
public String getActionName(){return SERVICE_NAME;}
// INPUT PARAMETERS
public static final String QUERY_IDS = "queries";
/** Logger component. */
public static transient Logger logger = Logger.getLogger(DeleteQueriesAction.class);
public void service(SourceBean request, SourceBean response) {
JSONArray ids;
Iterator it;
logger.debug("IN");
try {
super.service(request, response);
ids = getAttributeAsJSONArray( QUERY_IDS );
logger.debug("Parameter [" + QUERY_IDS + "] is equals to [" + ids + "]");
Assert.assertNotNull(getEngineInstance(), "It's not possible to execute " + this.getActionName() + " service before having properly created an instance of EngineInstance class");
if(ids != null && ids.length() > 0) {
List list = new ArrayList();
for(int i = 0; i < ids.length(); i++) {
list.add(ids.getString(i));
}
it = list.iterator();
} else {
it = getEngineInstance().getQueryCatalogue().getIds().iterator();
}
while(it.hasNext()) {
String id = (String)it.next();
// leave query definition inside the while in order to release to gc the removed query asap
Query query = getEngineInstance().getQueryCatalogue().removeQuery(id);
Assert.assertNotNull(query, "A query with id equals to [" + id + "] does not exist in teh catalogue");
logger.debug("Qury with id equals to [" + QUERY_IDS + "] has been removed succesfully from the catalogue]");
}
try {
writeBackToClient( new JSONAcknowledge() );
} 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");
}
}
}