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/**
* Copyright (c) 2004 - 2009 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.server.db;
import org.eclipse.emf.cdo.common.id.CDOID;
import org.eclipse.emf.cdo.common.id.CDOIDUtil;
import org.eclipse.emf.cdo.server.db.mapping.IMappingStrategy;
import org.eclipse.emf.cdo.server.internal.db.DBStore;
import org.eclipse.emf.cdo.server.internal.db.bundle.OM;
import org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.HorizontalAuditMappingStrategy;
import org.eclipse.net4j.db.IDBAdapter;
import org.eclipse.net4j.db.IDBConnectionProvider;
import org.eclipse.net4j.util.ObjectUtil;
import org.eclipse.net4j.util.WrappedException;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
/**
* @author Eike Stepper
*/
public final class CDODBUtil
{
/**
* @since 2.0
*/
public static final String EXT_POINT_MAPPING_STRATEGIES = "mappingStrategies";
private CDODBUtil()
{
}
/**
* @since 2.0
*/
public static IDBStore createStore(IMappingStrategy mappingStrategy, IDBAdapter dbAdapter,
IDBConnectionProvider dbConnectionProvider)
{
DBStore store = new DBStore();
store.setMappingStrategy(mappingStrategy);
store.setDBAdapter(dbAdapter);
store.setDbConnectionProvider(dbConnectionProvider);
mappingStrategy.setStore(store);
return store;
}
/**
* @since 2.0
*/
public static IMappingStrategy createHorizontalMappingStrategy()
{
return new HorizontalAuditMappingStrategy();
}
/**
* Can only be used when Eclipse is running. In standalone scenarios create the mapping strategy instance by directly
* calling the constructor of the mapping strategy class.
*
* @see #createHorizontalMappingStrategy()
* @since 2.0
*/
public static IMappingStrategy createMappingStrategy(String type)
{
IExtensionRegistry registry = Platform.getExtensionRegistry();
IConfigurationElement[] elements = registry.getConfigurationElementsFor(OM.BUNDLE_ID, EXT_POINT_MAPPING_STRATEGIES);
for (final IConfigurationElement element : elements)
{
if ("mappingStrategy".equals(element.getName()))
{
String typeAttr = element.getAttribute("type");
if (ObjectUtil.equals(typeAttr, type))
{
try
{
return (IMappingStrategy)element.createExecutableExtension("class");
}
catch (CoreException ex)
{
throw WrappedException.wrap(ex);
}
}
}
}
return null;
}
/**
* Get the long value of a CDOID (by delegating to {@link CDOIDUtil#getLong(org.eclipse.emf.cdo.common.id.CDOID)}) In
* addition, provide a check for external IDs which are not supported by the DBStore
*
* @param id
* the ID to convert to long
* @return the long value of the ID
* @throws IllegalArgumentException
* if the ID is not convertibla
* @since 2.0
*/
public static long getLong(CDOID id)
{
if (id != null && id.getType() == CDOID.Type.EXTERNAL_OBJECT)
{
throw new IllegalArgumentException("DBStore does not support external references.");
}
return CDOIDUtil.getLong(id);
}
// public static CDODBStoreManager getStoreManager(IDBAdapter dbAdapter,
// DataSource dataSource)
// {
// CDODBStoreManager storeManager = new CDODBStoreManager(dbAdapter,
// dataSource);
// storeManager.initDatabase();
// return storeManager;
// }
//
// public static CDODBStoreManager getStoreManager()
// {
// Properties properties = OM.BUNDLE.getConfigProperties();
// String adapterName = properties.getProperty("store.adapterName", "derby-embedded");
// IDBAdapter dbAdapter = DBUtil.getDBAdapter(adapterName);
// DataSource dataSource = DBUtil.createDataSource(properties, "datasource");
// return getStoreManager(dbAdapter, dataSource);
// }
}
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