net.sf.jasperreports.data.hibernate.spring.SpringHibernateDataAdapterService.java Source code

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Here is the source code for net.sf.jasperreports.data.hibernate.spring.SpringHibernateDataAdapterService.java

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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2019 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 <http://www.gnu.org/licenses/>.
 */
package net.sf.jasperreports.data.hibernate.spring;

import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import java.util.StringTokenizer;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import net.sf.jasperreports.data.AbstractDataAdapterService;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.engine.ParameterContributorContext;
import net.sf.jasperreports.engine.query.JRHibernateQueryExecuterFactory;
import net.sf.jasperreports.engine.util.JRClassLoader;

/**
 * @author Veaceslav Chicu (schicu@users.sourceforge.net)
 */
public class SpringHibernateDataAdapterService extends AbstractDataAdapterService {
    private static final Log log = LogFactory.getLog(SpringHibernateDataAdapterService.class);
    private Object session;

    /**
     * 
     */
    public SpringHibernateDataAdapterService(ParameterContributorContext paramContribContext,
            SpringHibernateDataAdapter jsonDataAdapter) {
        super(paramContribContext, jsonDataAdapter);
    }

    /**
     * @deprecated Replaced by {@link #SpringHibernateDataAdapterService(ParameterContributorContext, SpringHibernateDataAdapter)}.
     */
    public SpringHibernateDataAdapterService(JasperReportsContext jasperReportsContext,
            SpringHibernateDataAdapter jsonDataAdapter) {
        super(jasperReportsContext, jsonDataAdapter);
    }

    public SpringHibernateDataAdapter getHibernateDataAdapter() {
        return (SpringHibernateDataAdapter) getDataAdapter();
    }

    @Override
    public void contributeParameters(Map<String, Object> parameters) throws JRException {
        SpringHibernateDataAdapter hbmDA = getHibernateDataAdapter();
        if (hbmDA != null) {
            try {
                Class<?> clazz = JRClassLoader
                        .loadClassForRealName("org.springframework.context.support.ClassPathXmlApplicationContext");
                if (clazz != null) {
                    StringTokenizer parser = new StringTokenizer(hbmDA.getSpringConfig(), ",");
                    String[] configs = new String[parser.countTokens()];
                    int iCount = 0;
                    while (parser.hasMoreTokens()) {
                        configs[iCount++] = parser.nextToken();
                    }
                    Object configure = clazz.getConstructor(String[].class).newInstance((Object) configs);
                    if (configure != null) {
                        Object bsf = clazz.getMethod("getBean", String.class).invoke(configure, hbmDA.getBeanId());

                        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 (ClassNotFoundException e) {
                throw new JRException(e);
            } catch (InstantiationException e) {
                throw new JRException(e);
            } catch (IllegalAccessException e) {
                throw new JRException(e);
            } catch (IllegalArgumentException e) {
                throw new JRException(e);
            } catch (SecurityException e) {
                throw new JRException(e);
            } catch (InvocationTargetException e) {
                throw new JRException(e);
            } catch (NoSuchMethodException e) {
                throw new JRException(e);
            }
        }
    }

    @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);
            }
        }
    }
}