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/*
* Copyright (c) 2010-2013, 2015 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:
* Stefan Winkler - initial API and implementation
* Stefan Winkler - Bug 285426: [DB] Implement user-defined typeMapping support
*/
package org.eclipse.emf.cdo.tests.db;
import org.eclipse.emf.cdo.common.model.EMFUtil;
import org.eclipse.emf.cdo.eresource.CDOResource;
import org.eclipse.emf.cdo.server.db.mapping.AbstractTypeMapping;
import org.eclipse.emf.cdo.server.db.mapping.AbstractTypeMappingFactory;
import org.eclipse.emf.cdo.server.db.mapping.ITypeMapping;
import org.eclipse.emf.cdo.server.internal.db.mapping.TypeMappingUtil;
import org.eclipse.emf.cdo.session.CDOSession;
import org.eclipse.emf.cdo.tests.AbstractCDOTest;
import org.eclipse.emf.cdo.tests.db.verifier.DBStoreVerifier;
import org.eclipse.emf.cdo.transaction.CDOTransaction;
import org.eclipse.emf.cdo.util.CDOUtil;
import org.eclipse.emf.cdo.util.CommitException;
import org.eclipse.net4j.db.DBType;
import org.eclipse.net4j.db.DBUtil;
import org.eclipse.net4j.util.container.IPluginContainer;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EcoreFactory;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.emf.ecore.util.EcoreUtil;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
/**
* @author Stefan Winkler
*/
public class CustomTypeMappingTest extends AbstractCDOTest
{
public void testCustomTypeMapping() throws CommitException
{
// Manually register type mapping
MyIntToVarcharTypeMapping.Factory factory = new MyIntToVarcharTypeMapping.Factory();
IPluginContainer.INSTANCE.registerFactory(factory);
try
{
final EPackage pkg = createUniquePackage();
EClass cls = EMFUtil.createEClass(pkg, "foo", false, false);
EAttribute att = EMFUtil.createEAttribute(cls, "bar", EcorePackage.eINSTANCE.getEInt());
// Annotate type mapping and column type
EAnnotation annotation = EcoreFactory.eINSTANCE.createEAnnotation();
annotation.setSource("http://www.eclipse.org/CDO/DBStore");
annotation.getDetails().put("typeMapping", "org.eclipse.emf.cdo.tests.db.EIntToVarchar");
annotation.getDetails().put("columnType", DBType.VARCHAR.getKeyword());
att.getEAnnotations().add(annotation);
if (!isConfig(LEGACY))
{
CDOUtil.prepareDynamicEPackage(pkg);
}
CDOSession session = openSession();
CDOTransaction transaction = session.openTransaction();
CDOResource resource = transaction.createResource(getResourcePath("/test"));
EObject obj = EcoreUtil.create(cls);
obj.eSet(att, 42);
resource.getContents().add(obj);
transaction.commit();
transaction.close();
session.close();
msg("Check if type was mapped to string...");
new DBStoreVerifier(getRepository())
{
@Override
protected void doVerify() throws Exception
{
Statement stmt = null;
ResultSet rset = null;
try
{
stmt = getStatement();
rset = stmt.executeQuery("SELECT bar FROM " + pkg.getName() + "_foo");
assertEquals("java.lang.String", rset.getMetaData().getColumnClassName(1));
rset.next();
assertEquals("2a", rset.getString(1));
}
finally
{
DBUtil.close(rset);
DBUtil.close(stmt);
}
}
}.verify();
}
finally
{
IPluginContainer.INSTANCE.getFactoryRegistry().remove(factory.getKey());
}
}
/**
* @author Stefan Winkler
*/
public static class MyIntToVarcharTypeMapping extends AbstractTypeMapping
{
public static final ITypeMapping.Descriptor DESCRIPTOR = TypeMappingUtil.createDescriptor(
"org.eclipse.emf.cdo.tests.db.EIntToVarchar", EcorePackage.eINSTANCE.getEInt(), DBType.VARCHAR);
public MyIntToVarcharTypeMapping()
{
}
@Override
protected void doSetValue(PreparedStatement stmt, int index, Object value) throws SQLException
{
Integer val = (Integer)value;
stmt.setString(index, Integer.toHexString(val));
}
@Override
protected Object getResultSetValue(ResultSet resultSet) throws SQLException
{
String stringVal = resultSet.getString(getField().getName());
return Integer.parseInt(stringVal, 16);
}
/**
* @author Stefan Winkler
*/
public static class Factory extends AbstractTypeMappingFactory
{
public Factory()
{
super(DESCRIPTOR);
}
@Override
public ITypeMapping create(String description)
{
return new MyIntToVarcharTypeMapping();
}
}
}
}
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