/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.ant;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.cfg.Configuration;
import org.jbpm.JbpmConfiguration;
import org.jbpm.JbpmException;
/**
* common strategy for jbpm ant tasks to obtain a hibernate SessionFactory.
*/
public class AntHelper
{
final static Map configurations = new HashMap();
final static Map jbpmConfigurations = new HashMap();
private AntHelper() {
// prevent instantiation
}
public static Configuration getConfiguration(String hibernateCfgResource, String hibernatePropertiesResource)
{
Object key = getKey(hibernateCfgResource, hibernatePropertiesResource);
Configuration configuration = (Configuration)configurations.get(key);
if (configuration == null)
{
log.debug("creating hibernate configuration from cfg '" + hibernateCfgResource + "' and properties '" + hibernatePropertiesResource + "'");
configuration = new Configuration();
configuration.configure(hibernateCfgResource);
if (hibernatePropertiesResource != null)
{
try
{
InputStream propertiesInputStream = AntHelper.class.getResourceAsStream(hibernatePropertiesResource);
if (propertiesInputStream == null)
throw new IllegalArgumentException("Cannot read properties: " + hibernatePropertiesResource);
Properties properties = new Properties();
properties.load(propertiesInputStream);
configuration.setProperties(properties);
}
catch (Exception ex)
{
ex.printStackTrace();
throw new JbpmException("couldn't set properties '" + hibernatePropertiesResource + "'", ex);
}
}
configurations.put(key, configuration);
}
else
{
log.debug("got hibernate configuration from cfg '" + hibernateCfgResource + "' and properties '" + hibernatePropertiesResource + "' from the cache");
}
return configuration;
}
public static JbpmConfiguration getJbpmConfiguration(String jbpmCfg)
{
JbpmConfiguration jbpmConfiguration = (JbpmConfiguration)jbpmConfigurations.get(jbpmCfg);
if (jbpmConfiguration == null)
{
if (jbpmCfg == null)
{
jbpmConfiguration = JbpmConfiguration.getInstance();
}
else
{
jbpmConfiguration = JbpmConfiguration.getInstance(jbpmCfg);
}
jbpmConfigurations.put(jbpmCfg, jbpmConfiguration);
}
return jbpmConfiguration;
}
static Object getKey(String cfg, String properties)
{
List key = new ArrayList();
key.add(cfg);
key.add(properties);
return key;
}
private static final Log log = LogFactory.getLog(AntHelper.class);
}