private void doCombinedFindAndUpdate()

in performance/src/main/java/org/hibernate/ogm/perftest/mongodb/ogm/HibernateOgmCombinedBenchmark.java [122:183]
42 lines of code
7 McCabe index (conditional complexity)

	private void doCombinedFindAndUpdate(TestDataInserter inserter, Blackhole blackhole) throws NotSupportedException, SystemException, RollbackException,
			HeuristicMixedException, HeuristicRollbackException {
		EntityManagerFactoryHolder stateHolder = inserter.stateHolder;

		EntityManager entityManager = stateHolder.entityManagerFactory.createEntityManager();

		stateHolder.transactionManager.begin();
		entityManager.joinTransaction();

		AuthorWithSequence author = null;

		int updates = 0;
		// do GETS_PER_INVOCATION find-by-id
		for ( int i = 0; i < GETS_PER_INVOCATION; i++ ) {
			long id = stateHolder.rand.nextInt( NUMBER_OF_TEST_ENTITIES - 1 ) + 1;

			author = entityManager.find( AuthorWithSequence.class, id );

			if ( author == null ) {
				throw new IllegalArgumentException( "Couldn't find entry with id " + id );
			}

			blackhole.consume( author.getFname() );

			// do UPDATES_PER_INVOCATION updates
			if ( updates < UPDATES_PER_INVOCATION ) {
				author.setLname( "Royce" );
				updates++;
			}

		}

		// do FINDS_PER_INVOCATION queries
		for ( int i = 0; i < FINDS_PER_INVOCATION; i++ ) {
			int mName = stateHolder.rand.nextInt( 26 );

			TypedQuery<AuthorWithSequence> query = entityManager.createNamedQuery( "author_by_mname", AuthorWithSequence.class );
			query.setMaxResults( 50 );
			query.setParameter( "mname", "" + mName );
			List<AuthorWithSequence> authors = query.getResultList();

			for ( AuthorWithSequence foundAuthor : authors ) {
				blackhole.consume( foundAuthor.getLname() );
			}
		}

		// do INSERTS_PER_INVOCATION queries
		for ( int i = 0; i < INSERTS_PER_INVOCATION; i++ ) {
			AuthorWithSequence newAuthor = new AuthorWithSequence();

			newAuthor.setBio( "This is a decent size bio made of " + stateHolder.rand.nextDouble() + " stuffs" );
			newAuthor.setDob( new Date() );
			newAuthor.setFname( "Jessie " + stateHolder.rand.nextInt() );
			newAuthor.setLname( "Landis " + stateHolder.rand.nextInt() );
			newAuthor.setMname( "" + stateHolder.rand.nextInt( 26 ) );

			entityManager.persist( newAuthor );
		}

		stateHolder.transactionManager.commit();
		entityManager.close();
	}