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/***************************************************************************
* Copyright (c) 2004 - 2008 Eike Stepper, Germany.
* 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.internal.db;
import org.eclipse.emf.cdo.internal.protocol.model.CDOClassImpl;
import org.eclipse.emf.cdo.internal.protocol.model.CDOClassProxy;
import org.eclipse.emf.cdo.internal.protocol.model.CDOFeatureImpl;
import org.eclipse.emf.cdo.internal.protocol.model.CDOPackageImpl;
import org.eclipse.emf.cdo.internal.protocol.revision.CDORevisionImpl;
import org.eclipse.emf.cdo.protocol.CDOIDRange;
import org.eclipse.emf.cdo.server.IView;
import org.eclipse.emf.cdo.server.db.IClassMapping;
import org.eclipse.emf.cdo.server.db.IDBStoreWriter;
import org.eclipse.emf.cdo.server.db.IMappingStrategy;
import org.eclipse.emf.cdo.server.internal.db.bundle.OM;
import org.eclipse.net4j.db.DBException;
import org.eclipse.net4j.db.DBUtil;
import org.eclipse.net4j.db.ddl.IDBTable;
import org.eclipse.net4j.internal.util.om.trace.ContextTracer;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Set;
/**
* @author Eike Stepper
*/
public class DBStoreWriter extends DBStoreReader implements IDBStoreWriter
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG, DBStoreWriter.class);
public DBStoreWriter(DBStore store, IView view) throws DBException
{
super(store, view);
}
public void writePackages(CDOPackageImpl... cdoPackages)
{
for (CDOPackageImpl cdoPackage : cdoPackages)
{
writePackage(cdoPackage);
}
Set<IDBTable> affectedTables = mapPackages(cdoPackages);
getStore().getDBAdapter().createTables(affectedTables, getConnection());
}
protected void writePackage(CDOPackageImpl cdoPackage)
{
int id = getStore().getNextPackageID();
PackageServerInfo.setDBID(cdoPackage, id);
if (TRACER.isEnabled())
{
TRACER.format("Inserting package: {0} --> {1}", cdoPackage, id);
}
String packageURI = cdoPackage.getPackageURI();
String name = cdoPackage.getName();
String ecore = cdoPackage.getEcore();
boolean dynamic = cdoPackage.isDynamic();
CDOIDRange metaIDRange = cdoPackage.getMetaIDRange();
long lb = metaIDRange == null ? 0L : metaIDRange.getLowerBound().getValue();
long ub = metaIDRange == null ? 0L : metaIDRange.getUpperBound().getValue();
String sql = "INSERT INTO " + CDODBSchema.PACKAGES + " VALUES (?, ?, ?, ?, ?, ?, ?)";
DBUtil.trace(sql);
PreparedStatement pstmt = null;
try
{
pstmt = getConnection().prepareStatement(sql);
pstmt.setInt(1, id);
pstmt.setString(2, packageURI);
pstmt.setString(3, name);
pstmt.setString(4, ecore);
pstmt.setBoolean(5, dynamic);
pstmt.setLong(6, lb);
pstmt.setLong(7, ub);
if (pstmt.execute())
{
throw new DBException("No result set expected");
}
if (pstmt.getUpdateCount() == 0)
{
throw new DBException("No row inserted into table " + CDODBSchema.PACKAGES);
}
}
catch (SQLException ex)
{
throw new DBException(ex);
}
finally
{
DBUtil.close(pstmt);
}
for (CDOClassImpl cdoClass : cdoPackage.getClasses())
{
writeClass(cdoClass);
}
}
protected void writeClass(CDOClassImpl cdoClass)
{
int id = getStore().getNextClassID();
ClassServerInfo.setDBID(cdoClass, id);
CDOPackageImpl cdoPackage = cdoClass.getContainingPackage();
int packageID = ServerInfo.getDBID(cdoPackage);
int classifierID = cdoClass.getClassifierID();
String name = cdoClass.getName();
boolean isAbstract = cdoClass.isAbstract();
DBUtil.insertRow(getConnection(), getStore().getDBAdapter(), CDODBSchema.CLASSES, id, packageID, classifierID,
name, isAbstract);
for (CDOClassProxy superType : cdoClass.getSuperTypeProxies())
{
writeSuperType(id, superType);
}
for (CDOFeatureImpl feature : cdoClass.getFeatures())
{
writeFeature(feature);
}
}
protected void writeSuperType(int type, CDOClassProxy superType)
{
String packageURI = superType.getPackageURI();
int classifierID = superType.getClassifierID();
DBUtil
.insertRow(getConnection(), getStore().getDBAdapter(), CDODBSchema.SUPERTYPES, type, packageURI, classifierID);
}
protected void writeFeature(CDOFeatureImpl feature)
{
int id = getStore().getNextFeatureID();
FeatureServerInfo.setDBID(feature, id);
int classID = ServerInfo.getDBID(feature.getContainingClass());
String name = feature.getName();
int featureID = feature.getFeatureID();
int type = feature.getType().getTypeID();
CDOClassProxy reference = feature.getReferenceTypeProxy();
String packageURI = reference == null ? null : reference.getPackageURI();
int classifierID = reference == null ? 0 : reference.getClassifierID();
boolean many = feature.isMany();
boolean containment = feature.isContainment();
int idx = feature.getFeatureIndex();
DBUtil.insertRow(getConnection(), getStore().getDBAdapter(), CDODBSchema.FEATURES, id, classID, featureID, name,
type, packageURI, classifierID, many, containment, idx);
}
public void writeRevision(CDORevisionImpl revision)
{
if (TRACER.isEnabled())
{
TRACER.format("Inserting revision: {0}", revision);
}
CDOClassImpl cdoClass = revision.getCDOClass();
IMappingStrategy mappingStrategy = getStore().getMappingStrategy();
IClassMapping mapping = mappingStrategy.getClassMapping(cdoClass);
mapping.writeRevision(this, revision);
}
public void commit()
{
try
{
if (TRACER.isEnabled())
{
TRACER.format("Committing transaction: {0}", getView());
}
getConnection().commit();
}
catch (SQLException ex)
{
throw new DBException(ex);
}
}
public void rollback()
{
try
{
if (TRACER.isEnabled())
{
TRACER.format("Rolling back transaction: {0}", getView());
}
getConnection().rollback();
}
catch (SQLException ex)
{
throw new DBException(ex);
}
}
}
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