| /* |
| * 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(); |
| } |
| } |
| } |