SessionStatsTest.java :  » Database-ORM » hibernate » org » hibernate » test » stats » Java Open Source

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hibernate » org » hibernate » test » stats » SessionStatsTest.java
//$Id: SessionStatsTest.java 10977 2006-12-12 23:28:04Z steve.ebersole@jboss.com $
package org.hibernate.test.stats;

import java.util.HashSet;

import junit.framework.Test;

import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.junit.functional.FunctionalTestCase;
import org.hibernate.junit.functional.FunctionalTestClassTestSuite;
import org.hibernate.stat.SessionStatistics;
import org.hibernate.stat.Statistics;

/**
 * @author Emmanuel Bernard
 */
public class SessionStatsTest extends FunctionalTestCase {

  public SessionStatsTest(String x) {
    super(x);
  }

  public String[] getMappings() {
    return new String[] { "stats/Continent2.hbm.xml" };
  }

  public static Test suite() {
    return new FunctionalTestClassTestSuite( SessionStatsTest.class );
  }

  public void testSessionStatistics() throws Exception {
    Session s = openSession();
    Transaction tx = s.beginTransaction();
    Statistics stats = getSessions().getStatistics();
    stats.clear();
    boolean isStats = stats.isStatisticsEnabled();
    stats.setStatisticsEnabled(true);
    Continent europe = fillDb(s);
    tx.commit();
    s.clear();
    tx = s.beginTransaction();
    SessionStatistics sessionStats = s.getStatistics();
    assertEquals( 0, sessionStats.getEntityKeys().size() );
    assertEquals( 0, sessionStats.getEntityCount() );
    assertEquals( 0, sessionStats.getCollectionKeys().size() );
    assertEquals( 0, sessionStats.getCollectionCount() );
    europe = (Continent) s.get( Continent.class, europe.getId() );
    Hibernate.initialize( europe.getCountries() );
    Hibernate.initialize( europe.getCountries().iterator().next() );
    assertEquals( 2, sessionStats.getEntityKeys().size() );
    assertEquals( 2, sessionStats.getEntityCount() );
    assertEquals( 1, sessionStats.getCollectionKeys().size() );
    assertEquals( 1, sessionStats.getCollectionCount() );
    tx.commit();
    s.close();

    stats.setStatisticsEnabled( isStats);

  }

  private Continent fillDb(Session s) {
    Continent europe = new Continent();
    europe.setName("Europe");
    Country france = new Country();
    france.setName("France");
    europe.setCountries( new HashSet() );
    europe.getCountries().add(france);
    s.persist(france);
    s.persist(europe);
    return europe;
  }

}
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