/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.hibernate;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Types;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Properties;
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import org.hibernate.HibernateException;
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import org.hibernate.type.ImmutableType;
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import org.hibernate.usertype.ParameterizedType;
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import org.jbpm.api.JbpmException;
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import org.jbpm.pvm.internal.type.Converter;
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/**
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* @author Tom Baeyens
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*/
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public class ConverterType extends ImmutableType implements ParameterizedType {
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private static final long serialVersionUID = 1L;
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private static Map<Class<?>, String> converterNames = null;
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private static Map<String, Converter> converters = null;
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public Object fromStringValue(String arg0) throws HibernateException {
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return null;
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}
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public Object get(ResultSet resultSet, String name) throws HibernateException, SQLException {
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String converterName = resultSet.getString(name);
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return converters.get(converterName);
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}
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public void set(PreparedStatement stmt, Object value, int index) throws HibernateException, SQLException {
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String converterName = (value!=null ? converterNames.get(value.getClass()) : null);
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stmt.setString(index, converterName);
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}
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public int sqlType() {
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return Types.VARCHAR;
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}
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public String toString(Object arg0) throws HibernateException {
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return null;
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}
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public String getName() {
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return "converter";
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}
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public Class getReturnedClass() {
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return Converter.class;
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}
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public void setParameterValues(Properties properties) {
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converterNames = new HashMap<Class<?>, String>();
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converters = new HashMap<String, Converter>();
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for(Object key : properties.keySet()) {
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String converterClassName = (String) key;
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try {
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ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
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Class< ? > converterClass = null;
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try {
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converterClass = Class.forName(converterClassName, true, classLoader);
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} catch (ClassNotFoundException e) {
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// when running jBPM from ant, the context classloader is not set properly
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// so the jBPM classloader is necessary as a fallback
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classLoader = getClass().getClassLoader();
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converterClass = Class.forName(converterClassName, true, classLoader);
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}
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String converterName = properties.getProperty(converterClassName);
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converterNames.put(converterClass, converterName);
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Converter converter = (Converter) converterClass.newInstance();
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converters.put(converterName, converter);
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} catch (Exception e) {
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throw new JbpmException("couldn't initialize converter type "+converterClassName, e);
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}
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}
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}
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}
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