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/***************************************************************************
* Copyright (c) 2004 - 2007 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.CDOIDRangeImpl;
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.CDOClassRefImpl;
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.model.CDOTypeImpl;
import org.eclipse.emf.cdo.protocol.CDOID;
import org.eclipse.emf.cdo.protocol.CDOIDRange;
import org.eclipse.emf.cdo.protocol.model.CDOClassRef;
import org.eclipse.emf.cdo.protocol.model.CDOType;
import org.eclipse.emf.cdo.protocol.revision.CDORevision;
import org.eclipse.emf.cdo.server.IStoreReader;
import org.eclipse.net4j.db.DBException;
import org.eclipse.net4j.db.DBUtil;
import org.eclipse.net4j.db.IDBRowHandler;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
/**
* @author Eike Stepper
*/
public class DBStoreReader implements IStoreReader
{
protected DBStore store;
protected Connection connection;
public DBStoreReader(DBStore store) throws DBException
{
this.store = store;
try
{
connection = store.getDataSource().getConnection();
}
catch (SQLException ex)
{
throw new DBException(ex);
}
}
public void release() throws DBException
{
try
{
connection.close();
}
catch (SQLException ex)
{
throw new DBException(ex);
}
}
public DBStore getStore()
{
return store;
}
public Collection<PackageInfo> readPackageInfos()
{
final Collection<PackageInfo> result = new ArrayList(0);
IDBRowHandler rowHandler = new IDBRowHandler()
{
public boolean handle(int row, final Object... values)
{
result.add(new PackageInfo()
{
public String getPackageURI()
{
return (String)values[0];
}
public boolean isDynamic()
{
return values[1] != null;
}
public CDOIDRange getMetaIDRange()
{
long rangeLB = (Long)values[2];
long rangeUB = (Long)values[3];
return CDOIDRangeImpl.create(rangeLB, rangeUB);
}
});
return true;
}
};
DBUtil.select(connection, rowHandler, CDODBSchema.PACKAGES_URI, CDODBSchema.PACKAGES_DYNAMIC,
CDODBSchema.PACKAGES_RANGE_LB, CDODBSchema.PACKAGES_RANGE_UB);
return result;
}
public void readPackage(final CDOPackageImpl cdoPackage)
{
Object[] values = DBUtil.select(connection, "", CDODBSchema.PACKAGES_ID, CDODBSchema.PACKAGES_NAME,
CDODBSchema.PACKAGES_ECORE);
cdoPackage.setServerInfo(values[0]);
cdoPackage.setName((String)values[1]);
cdoPackage.setEcore((String)values[2]);
IDBRowHandler rowHandler = new IDBRowHandler()
{
public boolean handle(int row, Object... values)
{
int classifierID = (Integer)values[1];
String name = (String)values[2];
boolean isAbstract = (Boolean)values[3];
CDOClassImpl cdoClass = new CDOClassImpl(cdoPackage, classifierID, name, isAbstract);
cdoClass.setServerInfo(values[0]);
cdoPackage.addClass(cdoClass);
readClass(cdoClass);
return true;
}
};
String where = CDODBSchema.CLASSES_PACKAGE.toString() + " = '" + cdoPackage.getPackageURI() + "'";
DBUtil.select(connection, rowHandler, where, CDODBSchema.CLASSES_ID, CDODBSchema.CLASSES_CLASSIFIER,
CDODBSchema.CLASSES_NAME, CDODBSchema.CLASSES_ABSTRACT);
}
public void readClass(final CDOClassImpl cdoClass)
{
int classID = (Integer)cdoClass.getServerInfo();
readSuperTypes(cdoClass, classID);
readFeatures(cdoClass, classID);
}
public void readSuperTypes(final CDOClassImpl cdoClass, int classID)
{
IDBRowHandler rowHandler = new IDBRowHandler()
{
public boolean handle(int row, Object... values)
{
String packageURI = (String)values[0];
int classifierID = (Integer)values[1];
cdoClass.addSuperType(new CDOClassRefImpl(packageURI, classifierID));
return true;
}
};
String where = CDODBSchema.SUPERTYPES_TYPE.toString() + " = " + classID;
DBUtil.select(connection, rowHandler, where, CDODBSchema.SUPERTYPES_SUPERTYPE_PACKAGE,
CDODBSchema.SUPERTYPES_SUPERTYPE_CLASSIFIER);
}
public void readFeatures(final CDOClassImpl cdoClass, int classID)
{
IDBRowHandler rowHandler = new IDBRowHandler()
{
public boolean handle(int row, Object... values)
{
int featureID = (Integer)values[1];
String name = (String)values[2];
CDOTypeImpl type = CDOTypeImpl.getType((Integer)values[3]);
boolean many = (Boolean)values[6];
CDOFeatureImpl feature;
if (type == CDOType.OBJECT)
{
String packageURI = (String)values[4];
int classifierID = (Integer)values[5];
boolean containment = (Boolean)values[7];
CDOClassRefImpl classRef = new CDOClassRefImpl(packageURI, classifierID);
CDOClassProxy referenceType = new CDOClassProxy(classRef, cdoClass.getPackageManager());
feature = new CDOFeatureImpl(cdoClass, featureID, name, referenceType, many, containment);
}
else
{
feature = new CDOFeatureImpl(cdoClass, featureID, name, type, many);
}
feature.setServerInfo(values[0]);
cdoClass.addFeature(feature);
return true;
}
};
String where = CDODBSchema.FEATURES_CLASS.toString() + " = " + classID;
DBUtil.select(connection, rowHandler, where, CDODBSchema.FEATURES_ID, CDODBSchema.FEATURES_FEATURE,
CDODBSchema.FEATURES_NAME, CDODBSchema.FEATURES_TYPE, CDODBSchema.FEATURES_REFERENCE_PACKAGE,
CDODBSchema.FEATURES_REFERENCE_CLASSIFIER, CDODBSchema.FEATURES_MANY, CDODBSchema.FEATURES_CONTAINMENT);
}
public CDORevision readRevision(CDOID id, long timeStamp)
{
// TODO Implement method DBStoreReader.readRevision()
throw new UnsupportedOperationException("Not yet implemented");
}
public CDOID readResourceID(String path)
{
// TODO Implement method DBStoreReader.readResourceID()
throw new UnsupportedOperationException("Not yet implemented");
}
public String readResourcePath(CDOID id)
{
// TODO Implement method DBStoreReader.readResourcePath()
throw new UnsupportedOperationException("Not yet implemented");
}
public CDORevision readRevision(CDOID id)
{
// TODO Implement method DBStoreReader.readRevision()
throw new UnsupportedOperationException("Not yet implemented");
}
public CDOClassRef readObjectType(CDOID id)
{
// TODO Implement method DBStoreReader.readObjectType()
throw new UnsupportedOperationException("Not yet implemented");
}
}
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