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/**
* Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Martin Taal - initial API and implementation
* Eike Stepper - maintenance
*/
package org.eclipse.emf.cdo.server.hibernate.teneo;
import org.eclipse.emf.common.util.WrappedException;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.teneo.PersistenceOptions;
import org.eclipse.emf.teneo.annotations.mapper.EDataTypeAnnotator;
import org.eclipse.emf.teneo.annotations.mapper.EFeatureAnnotator;
import org.eclipse.emf.teneo.annotations.xml.XmlPersistenceContentHandler;
import org.eclipse.emf.teneo.extension.ExtensionManager;
import org.eclipse.emf.teneo.extension.ExtensionManagerFactory;
import org.eclipse.emf.teneo.extension.ExtensionUtil;
import org.eclipse.emf.teneo.hibernate.mapper.ManyAttributeMapper;
import org.eclipse.emf.teneo.hibernate.mapper.MappingContext;
import org.eclipse.emf.teneo.hibernate.mapper.MappingUtil;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
/**
* Generates a CDO enabled mapping for Hibernate.
*
* @author <a href="mtaal@elver.org">Martin Taal</a>
* @since 3.0
*/
public class CDOMappingGenerator
{
private static Map<String, String> extensions = new HashMap<String, String>();
private ExtensionManager extensionManager = ExtensionManagerFactory.getInstance().create();
public CDOMappingGenerator()
{
}
public void registerCDOExtensions(ExtensionManager extensionManager)
{
MappingUtil.registerHbExtensions(extensionManager);
// very strange but these can not go into the constructor...
// get a class not found exception then
addDefaultExtension(MappingContext.class, CDOMappingContext.class, extensionManager);
addDefaultExtension(EFeatureAnnotator.class, CDOEFeatureAnnotator.class, extensionManager);
addDefaultExtension(ManyAttributeMapper.class, CDOManyAttributeMapper.class, extensionManager);
addDefaultExtension(XmlPersistenceContentHandler.class, CDOXmlPersistenceContentHandler.class, extensionManager);
addDefaultExtension(EDataTypeAnnotator.class, CDOEDataTypeAnnotator.class, extensionManager);
for (String key : extensions.keySet())
{
try
{
final Class<?> keyClass = Thread.currentThread().getContextClassLoader().loadClass(key);
final Class<?> valueClass = Thread.currentThread().getContextClassLoader().loadClass(extensions.get(key));
extensionManager.registerExtension(ExtensionUtil.createExtension(keyClass, valueClass, false));
}
catch (Exception e)
{
throw new WrappedException(e);
}
}
}
protected void addDefaultExtension(Class<?> extensionClass, Class<?> extendingClass, ExtensionManager extensionManager)
{
if (extensions.containsKey(extensionClass.getName()))
{
return;
}
extensionManager.registerExtension(ExtensionUtil.createExtension(extensionClass, extendingClass, false));
}
public Map<String, String> getExtensions()
{
return extensions;
}
public void putExtension(String extensionClassName, String extendingClassName)
{
extensions.put(extensionClassName, extendingClassName);
}
/**
* Separate utility method, generates a hibernate mapping for a set of epackages and options. The hibernate.hbm.xml is
* returned as a string. The mapping is not registered or used in any other way by Elver.
*/
public String generateMapping(EPackage[] epackages, Properties props)
{
// set some default properties
if (!props.containsKey(PersistenceOptions.ALWAYS_VERSION))
{
props.put(PersistenceOptions.ALWAYS_VERSION, "true"); //$NON-NLS-1$
}
if (!props.containsKey(PersistenceOptions.ID_COLUMN_NAME))
{
props.put(PersistenceOptions.ID_COLUMN_NAME, "idcol"); //$NON-NLS-1$
}
if (!props.containsKey(PersistenceOptions.VERSION_COLUMN_NAME))
{
props.put(PersistenceOptions.VERSION_COLUMN_NAME, "version"); //$NON-NLS-1$
}
props.put(PersistenceOptions.ALSO_MAP_AS_CLASS, "false"); //$NON-NLS-1$
props.put(PersistenceOptions.EMAP_AS_TRUE_MAP, "false"); //$NON-NLS-1$
registerCDOExtensions(extensionManager);
return MappingUtil.generateMapping(epackages, props, extensionManager);
}
}
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