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/*
* Copyright (c) 2004 - 2011 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
*/
package org.eclipse.emf.cdo.tests.performance;
import org.eclipse.emf.cdo.eresource.CDOResource;
import org.eclipse.emf.cdo.session.CDOSession;
import org.eclipse.emf.cdo.tests.model1.Category;
import org.eclipse.emf.cdo.tests.model1.Company;
import org.eclipse.emf.cdo.tests.performance.framework.PerformanceTest;
import org.eclipse.emf.cdo.transaction.CDOTransaction;
import org.eclipse.emf.cdo.util.CDOUtil;
import org.eclipse.emf.cdo.util.CommitException;
import java.util.Random;
/**
* @author Stefan Winkler
*/
public class DeletePerformanceTest extends PerformanceTest
{
private static final int AMOUNT_ELEMENTS = 10000;
private Random random = new Random();
private Company initModel() throws CommitException
{
msg("Initializing model ...");
CDOSession session = openSession();
CDOTransaction transaction = session.openTransaction();
CDOResource resource = transaction.createResource(getResourcePath("res"));
Company company = getModel1Factory().createCompany();
for (int i = 0; i < AMOUNT_ELEMENTS; i++)
{
Category cat = getModel1Factory().createCategory();
cat.setName(Integer.toString(i));
company.getCategories().add(cat);
}
resource.getContents().add(company);
msg("Committing model ...");
transaction.commit();
msg("Done.");
return company;
}
@CleanRepositoriesBefore
public void _testDeleteRandom() throws Exception
{
Company company = initModel();
CDOTransaction transaction = (CDOTransaction)CDOUtil.getCDOObject(company).cdoView();
msg("Starting to remove elements ...");
for (int i = 0; i < AMOUNT_ELEMENTS / 4; i++)
{
int currentSize = AMOUNT_ELEMENTS - i;
int indexToRemove = random.nextInt(currentSize - 1);
company.getCategories().remove(indexToRemove);
startProbing();
transaction.commit();
stopProbing();
}
}
@CleanRepositoriesBefore
public void testDeleteEveryOther() throws Exception
{
Company company = initModel();
CDOTransaction transaction = (CDOTransaction)CDOUtil.getCDOObject(company).cdoView();
msg("Starting to remove elements ...");
for (int i = 0; i < AMOUNT_ELEMENTS / 4; i++)
{
int indexToRemove = AMOUNT_ELEMENTS / 2 - i;
company.getCategories().remove(indexToRemove);
startProbing();
transaction.commit();
stopProbing();
}
}
@CleanRepositoriesBefore
public void _testDeleteAtBeginning() throws Exception
{
Company company = initModel();
CDOTransaction transaction = (CDOTransaction)CDOUtil.getCDOObject(company).cdoView();
msg("Starting to remove elements ...");
for (int i = 0; i < AMOUNT_ELEMENTS / 4; i++)
{
int indexToRemove = 0;
company.getCategories().remove(indexToRemove);
startProbing();
transaction.commit();
stopProbing();
}
}
}
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