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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.common.id.CDOID;
import org.eclipse.emf.cdo.common.id.CDOIDMeta;
import org.eclipse.emf.cdo.common.id.CDOIDMetaRange;
import org.eclipse.emf.cdo.common.model.CDOClass;
import org.eclipse.emf.cdo.common.model.CDOClassProxy;
import org.eclipse.emf.cdo.common.model.CDOFeature;
import org.eclipse.emf.cdo.common.model.CDOPackage;
import org.eclipse.emf.cdo.common.revision.CDORevision;
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.emf.cdo.spi.common.InternalCDOClass;
import org.eclipse.emf.cdo.spi.common.InternalCDOFeature;
import org.eclipse.net4j.db.DBException;
import org.eclipse.net4j.db.DBUtil;
import org.eclipse.net4j.db.ddl.IDBTable;
import org.eclipse.net4j.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);
}
@Override
public void commit()
{
super.commit();
try
{
getConnection().commit();
}
catch (SQLException ex)
{
throw new DBException(ex);
}
}
@Override
public void rollback(CommitContext context)
{
super.rollback(context);
try
{
getConnection().rollback();
}
catch (SQLException ex)
{
throw new DBException(ex);
}
}
@Override
protected void writePackages(CDOPackage... cdoPackages)
{
super.writePackages(cdoPackages);
Set<IDBTable> affectedTables = mapPackages(cdoPackages);
getStore().getDBAdapter().createTables(affectedTables, getConnection());
}
@Override
protected void writePackage(CDOPackage cdoPackage)
{
int id = getStore().getNextPackageID();
PackageServerInfo.setDBID(cdoPackage, id);
if (TRACER.isEnabled())
{
TRACER.format("Writing package: {0} --> {1}", cdoPackage, id);
}
String packageURI = cdoPackage.getPackageURI();
String name = cdoPackage.getName();
String ecore = cdoPackage.getEcore();
boolean dynamic = cdoPackage.isDynamic();
CDOIDMetaRange metaIDRange = cdoPackage.getMetaIDRange();
long lowerBound = metaIDRange == null ? 0L : ((CDOIDMeta)metaIDRange.getLowerBound()).getLongValue();
long upperBound = metaIDRange == null ? 0L : ((CDOIDMeta)metaIDRange.getUpperBound()).getLongValue();
String parentURI = cdoPackage.getParentURI();
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, lowerBound);
pstmt.setLong(7, upperBound);
pstmt.setString(8, parentURI);
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);
}
super.writePackage(cdoPackage);
}
@Override
protected void writeClass(InternalCDOClass cdoClass)
{
int id = getStore().getNextClassID();
ClassServerInfo.setDBID(cdoClass, id);
CDOPackage 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);
super.writeClass(cdoClass);
}
@Override
protected void writeSuperType(InternalCDOClass type, CDOClassProxy superType)
{
int id = ClassServerInfo.getDBID(type);
String packageURI = superType.getPackageURI();
int classifierID = superType.getClassifierID();
DBUtil.insertRow(getConnection(), getStore().getDBAdapter(), CDODBSchema.SUPERTYPES, id, packageURI, classifierID);
}
@Override
protected void writeFeature(CDOFeature 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 = ((InternalCDOFeature)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);
}
@Override
protected void writeRevisions(CDORevision[] revisions)
{
for (CDORevision revision : revisions)
{
writeRevision(revision);
}
}
protected void writeRevision(CDORevision revision)
{
if (TRACER.isEnabled())
{
TRACER.format("Writing revision: {0}", revision);
}
CDOClass cdoClass = revision.getCDOClass();
IClassMapping mapping = getStore().getMappingStrategy().getClassMapping(cdoClass);
mapping.writeRevision(this, revision);
}
@Override
protected void detachObjects(CDOID[] detachedObjects, long revised)
{
for (CDOID id : detachedObjects)
{
detachObject(id, revised);
}
}
/**
* @param revised
* @since 2.0
*/
protected void detachObject(CDOID id, long revised)
{
if (TRACER.isEnabled())
{
TRACER.format("Detaching object: {0}", id);
}
CDOClass cdoClass = getObjectType(id);
IClassMapping mapping = getStore().getMappingStrategy().getClassMapping(cdoClass);
mapping.detachObject(this, id, revised);
}
}
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