/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2012, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.testing.byteman;

import java.util.concurrent.atomic.AtomicInteger;

import org.jboss.byteman.rule.Rule;
import org.jboss.byteman.rule.helper.Helper;
import org.jboss.logging.Logger;

/**
 * @author Sanne Grinovero <sanne@hibernate.org> (C) 2011 Red Hat Inc.
 * @author Hardy Ferentschik
 */
public class BytemanHelper extends Helper {
	private static final Logger log = Logger.getLogger( BytemanHelper.class );

	public static final AtomicInteger counter = new AtomicInteger();

	protected BytemanHelper(Rule rule) {
		super( rule );
	}

	public void sleepASecond() {
		try {
			log.info( "Byteman rule triggered: sleeping a second" );
			Thread.sleep( 1000 );
		}
		catch ( InterruptedException e ) {
			Thread.currentThread().interrupt();
			log.error( "unexpected interruption", e );
		}
	}

	public void throwNPE(String message) {
		//Needed because of Bug BYTEMAN-173: can't simply inject a NPE from the rule
		throw new NullPointerException( message );
	}

	public void countInvocation() {
		log.debug( "Increment call count" );
		counter.incrementAndGet();
	}

	public static int getAndResetInvocationCount() {
		return counter.getAndSet( 0 );
	}
}