/*******************************************************************************
 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
 * in Industry THTH ry.
 * 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:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.db.tests.api.request.misc;

import java.util.concurrent.atomic.AtomicInteger;

import org.junit.Test;
import org.simantics.databoard.Bindings;
import org.simantics.db.Resource;
import org.simantics.db.Session;
import org.simantics.db.WriteGraph;
import org.simantics.db.common.primitiverequest.Value;
import org.simantics.db.common.request.WriteRequest;
import org.simantics.db.common.request.WriteResultRequest;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.procedure.Listener;
import org.simantics.db.testing.base.ExistingDatabaseTest;
import org.simantics.layer0.Layer0;

/**
 * @author Tuukka Lehtonen
 */
public class NoneListenerTest extends ExistingDatabaseTest {

	static AtomicInteger execs = new AtomicInteger(0);
	
    static class TestListener implements Listener<String> {
        @Override
        public void execute(String result) {
        	execs.incrementAndGet();
        }
        @Override
        public boolean isDisposed() {
            return false;
        }
		@Override
		public void exception(Throwable t) {
			t.printStackTrace();
		}
		@Override
		public int hashCode() {
			return getClass().hashCode();
		}
		@Override
		public boolean equals(Object obj) {
			return getClass().equals(obj.getClass());
		}
    }

	@Test
    public void test() throws Exception {

    	final Session session = getSession();

        final Resource newResource = session.syncRequest(new WriteResultRequest<Resource>() {
            @Override
            public Resource perform(WriteGraph g) throws DatabaseException {
                Layer0 b = Layer0.getInstance(g);
                Resource result = g.newResource();
                g.claim(result, b.InstanceOf, null, b.Entity);
                g.claim(g.getRootLibrary(), b.ConsistsOf, result);
                g.claimValue(result, "Test", Bindings.STRING);
                return result;
            }
        });

        TestListener l1 = new TestListener();
        TestListener l2 = new TestListener();

        session.syncRequest(new Value<String>(newResource, Bindings.STRING), l1);
        session.syncRequest(new Value<String>(newResource, Bindings.STRING), l2);

        assertEquals(execs.get(), 2);

        session.syncRequest(new WriteRequest() {
            @Override
            public void perform(WriteGraph graph) throws DatabaseException {
                graph.claimValue(newResource, "Test2", Bindings.STRING);
            }
        });
        
        assertEquals(execs.get(), 3);

    }
}