/*
* 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.env.session.hibernate;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.HashMap;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import org.hibernate.HibernateException;
import org.hibernate.type.ImmutableType;
import org.hibernate.usertype.ParameterizedType;
import org.jbpm.PvmException;
import org.jbpm.pvm.type.Converter;
import org.jbpm.util.ReflectUtil;
/**
* @author Tom Baeyens
*/
public class ConverterType extends ImmutableType implements ParameterizedType {
private static final long serialVersionUID = 1L;
private static Map<Class<?>, String> converterNames = null;
private static Map<String, Converter> converters = null;
public Object fromStringValue(String arg0) throws HibernateException {
return null;
}
public Object get(ResultSet resultSet, String name) throws HibernateException, SQLException {
String converterName = resultSet.getString(name);
return converters.get(converterName);
}
public void set(PreparedStatement stmt, Object value, int index) throws HibernateException, SQLException {
String converterName = (value!=null ? converterNames.get(value.getClass()) : null);
stmt.setString(index, converterName);
}
public int sqlType() {
return Types.CHAR;
}
public String toString(Object arg0) throws HibernateException {
return null;
}
public String getName() {
return "converter";
}
public Class getReturnedClass() {
return Converter.class;
}
public void setParameterValues(Properties properties) {
converterNames = new HashMap<Class<?>, String>();
converters = new HashMap<String, Converter>();
for(Object key : properties.keySet()) {
String converterClassName = (String) key;
try {
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
Class<?> converterClass = ReflectUtil.loadClass(classLoader, converterClassName);
String converterName = properties.getProperty(converterClassName);
converterNames.put(converterClass, converterName);
Converter converter = (Converter) converterClass.newInstance();
converters.put(converterName, converter);
} catch (Exception e) {
throw new PvmException("couldn't initialize converter type "+converterClassName, e);
}
}
}
}