/*
* eGov suite of products aim to improve the internal efficiency,transparency,
* accountability and the service delivery of the government organizations.
*
* Copyright (C) <2015> eGovernments Foundation
*
* The updated version of eGov suite of products as by eGovernments Foundation
* is available at http://www.egovernments.org
*
* 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 3 of the License, or
* 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, see http://www.gnu.org/licenses/ or
* http://www.gnu.org/licenses/gpl.html .
*
* In addition to the terms of the GPL license to be adhered to in using this
* program, the following additional terms are to be complied with:
*
* 1) All versions of this program, verbatim or modified must carry this
* Legal Notice.
*
* 2) Any misrepresentation of the origin of the material is prohibited. It
* is required that all modified versions of this material be marked in
* reasonable ways as different from the original version.
*
* 3) This license does not grant any rights to any user of the program
* with regards to rights under trademark law for use of the trade names
* or trademarks of eGovernments Foundation.
*
* In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org.
*/
package com.exilant.exility.dataservice;
import com.exilant.exility.common.AbstractTask;
import com.exilant.exility.common.DataCollection;
import com.exilant.exility.common.TaskFailedException;
import com.exilant.exility.common.XMLLoader;
import org.egov.infstr.utils.EGovConfig;
import java.net.URL;
import java.sql.Connection;
import java.util.HashMap;
public class SQLTask extends AbstractTask {
static private SQLTask singletonInstance;
// declaration for XML Loader, field not used anywhere
protected SQLTemplate sqlTemplate;
public HashMap sqlTemplates;
// singleton
public static SQLTask getTask()
{
if (singletonInstance == null)
singletonInstance = new SQLTask();
return singletonInstance;
}
private SQLTask()
{
super();
// load all statements ... may be this is too many for a project.
// let us go with this approach at this time...
final XMLLoader xmlLoader = new XMLLoader();
final URL url = EGovConfig.class.getClassLoader().getResource("config/resource/sqlTemplates.xml");
// if(LOGGER.isDebugEnabled()) LOGGER.debug("url in SQLTask=================="+url);
xmlLoader.load(url.toString(), this);
}
public String getSQL(final String serviceID, final DataCollection dc, final Connection con) throws TaskFailedException
{
// locate the statement fromHashMap
final SQLTemplate template = (SQLTemplate) sqlTemplates.get(serviceID);// Get based on the Id from the hashmap.
if (template == null)
{
dc.addMessage("exilNoSQLTemplate", serviceID);
throw new TaskFailedException();
}
return template.getSQL(dc);
}
@Override
public void execute(final String serviceID,
final String gridName,
final DataCollection dc,
final Connection con,
final boolean erronNoData,
final boolean gridHasColumnHeading,
final String prefix) throws TaskFailedException
{
// locate the statement fromHashMap
final SQLTemplate template = (SQLTemplate) sqlTemplates.get(serviceID);// Get based on the Id from the hashmap.
if (template == null)
{
dc.addMessage("exilNoSQLTemplate", serviceID);
throw new TaskFailedException();
}
final String sql = getSQL(serviceID, dc, con);
extractData(sql, gridName, dc, con, erronNoData, gridHasColumnHeading, prefix);
}
}