/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.engine.query;
import java.io.InputStream;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRDataset;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.data.JsonDataSource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* JSON query executer implementation.
*
* @author Narcis Marcu (narcism@users.sourceforge.net)
* @version $Id: JsonQueryExecuter.java 4186 2011-02-16 10:02:42Z narcism $
*/
public class JsonQueryExecuter extends JRAbstractQueryExecuter
{
private static final Log log = LogFactory.getLog(JsonQueryExecuter.class);
private JsonDataSource datasource;
public JsonQueryExecuter(JRDataset dataset, Map parametersMap)
{
super(dataset, parametersMap);
parseQuery();
}
protected String getParameterReplacement(String parameterName)
{
return String.valueOf(getParameterValue(parameterName));
}
public JRDataSource createDatasource() throws JRException
{
InputStream jsonInputStream = (InputStream) getParameterValue(JsonQueryExecuterFactory.JSON_INPUT_STREAM);
if (jsonInputStream != null) {
datasource = new JsonDataSource(jsonInputStream, getQueryString());
} else {
String jsonSource = getStringParameterOrProperty(JsonQueryExecuterFactory.JSON_SOURCE);
if (jsonSource != null) {
datasource = new JsonDataSource(jsonSource, getQueryString());
} else {
if (log.isWarnEnabled()) {
log.warn("No JSON source was provided.");
}
}
}
if (datasource != null) {
String dateFormatPattern = getStringParameterOrProperty(JsonQueryExecuterFactory.JSON_DATE_PATTERN);
if(dateFormatPattern != null){
datasource.setDatePattern(dateFormatPattern);
}
String numberFormatPattern = getStringParameterOrProperty(JsonQueryExecuterFactory.JSON_NUMBER_PATTERN);
if(numberFormatPattern != null){
datasource.setNumberPattern(numberFormatPattern);
}
Locale jsonLocale = (Locale) getParameterValue(JsonQueryExecuterFactory.JSON_LOCALE, true);
if (jsonLocale != null) {
datasource.setLocale(jsonLocale);
} else {
String jsonLocaleCode = getStringParameterOrProperty(JsonQueryExecuterFactory.JSON_LOCALE_CODE);
if (jsonLocaleCode != null) {
datasource.setLocale(jsonLocaleCode);
}
}
TimeZone jsonTimezone = (TimeZone) getParameterValue(JsonQueryExecuterFactory.JSON_TIME_ZONE, true);
if (jsonTimezone != null) {
datasource.setTimeZone(jsonTimezone);
} else {
String jsonTimezoneId = getStringParameterOrProperty(JsonQueryExecuterFactory.JSON_TIMEZONE_ID);
if (jsonTimezoneId != null) {
datasource.setTimeZone(jsonTimezoneId);
}
}
}
return datasource;
}
public void close()
{
if(datasource != null){
datasource.close();
}
}
public boolean cancelQuery() throws JRException
{
//nothing to cancel
return false;
}
}