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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2022 TIBCO Software Inc. 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 .
*/
package net.sf.jasperreports.data.hibernate;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import java.util.Properties;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import net.sf.jasperreports.data.AbstractClasspathAwareDataAdapterService;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.ParameterContributorContext;
import net.sf.jasperreports.engine.query.JRHibernateQueryExecuterFactory;
import net.sf.jasperreports.engine.util.JRClassLoader;
/**
* @author Veaceslov Chicu ([email protected])
*/
public class HibernateDataAdapterService extends AbstractClasspathAwareDataAdapterService {
private static final Log log = LogFactory
.getLog(HibernateDataAdapterService.class);
private Object session;
/**
*
*/
public HibernateDataAdapterService(ParameterContributorContext paramContribContext, HibernateDataAdapter jsonDataAdapter)
{
super(paramContribContext, jsonDataAdapter);
}
public HibernateDataAdapter getHibernateDataAdapter() {
return (HibernateDataAdapter) getDataAdapter();
}
@Override
public void contributeParameters(Map parameters)
throws JRException {
HibernateDataAdapter hbmDA = getHibernateDataAdapter();
if (hbmDA != null) {
ClassLoader oldThreadClassLoader = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(getClassLoader(oldThreadClassLoader));
Class clazz = null;
if (!hbmDA.isUseAnnotation()) {
clazz = JRClassLoader.loadClassForRealName("org.hibernate.cfg.Configuration");
}
else {
clazz = JRClassLoader.loadClassForRealName("org.hibernate.cfg.AnnotationConfiguration");
}
if (clazz != null) {
Object configure = clazz.getDeclaredConstructor().newInstance();
if (configure != null) {
String xmlFileName = hbmDA.getXMLFileName();
if (xmlFileName != null && !xmlFileName.isEmpty()) {
File file = new File(xmlFileName);
clazz.getMethod("configure", file.getClass())
.invoke(configure, file);
} else {
clazz.getMethod("configure", new Class[] {})
.invoke(configure, new Object[] {});
}
String pFileName = hbmDA.getPropertiesFileName();
if (pFileName != null && !pFileName.isEmpty()) {
Properties propHibernate = new Properties();
propHibernate.load(new FileInputStream(pFileName));
clazz.getMethod("setProperties",
propHibernate.getClass()).invoke(configure,
propHibernate);
}
Object bsf = clazz.getMethod("buildSessionFactory",
new Class[] {}).invoke(configure,
new Object[] {});
session = bsf.getClass()
.getMethod("openSession", new Class[] {})
.invoke(bsf, new Object[] {});
session.getClass()
.getMethod("beginTransaction", new Class[] {})
.invoke(session, new Object[] {});
parameters
.put(JRHibernateQueryExecuterFactory.PARAMETER_HIBERNATE_SESSION,
session);
}
}
} catch (IOException | ClassNotFoundException | InstantiationException
| IllegalAccessException | IllegalArgumentException | SecurityException
| InvocationTargetException | NoSuchMethodException e) {
throw new JRException(e);
} finally {
Thread.currentThread().setContextClassLoader(oldThreadClassLoader);
}
}
}
@Override
public void dispose() {
if (session != null) {
try {
session.getClass().getMethod("close", new Class[] {})
.invoke(session, new Object[] {});
} catch (Exception ex) {
if (log.isErrorEnabled())
log.error("Error while closing the connection.", ex);
}
}
}
}