/*******************************************************************************
 * 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.support.clusterControl;

import java.util.Arrays;

import org.junit.Test;
import org.simantics.databoard.Bindings;
import org.simantics.db.Resource;
import org.simantics.db.WriteGraph;
import org.simantics.db.common.request.WriteRequest;
import org.simantics.db.event.ChangeEvent;
import org.simantics.db.event.ChangeListener;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.service.ClusterControl;
import org.simantics.db.service.GraphChangeListenerSupport;
import org.simantics.db.testing.cases.FreshDatabaseTest;

public class CreateAndCollectBigClusterInUpdateTest extends FreshDatabaseTest {

	Resource resource1;
	Resource resource2;
	Resource resource3;
	
	@Test
    public void test() throws Exception{

        GraphChangeListenerSupport changeListenerSupport = getSession().getService(GraphChangeListenerSupport.class);
        changeListenerSupport.addMetadataListener( new ChangeListener() {
			
			@Override
			public void graphChanged(ChangeEvent e) throws DatabaseException {

				// Collect
		        ClusterControl cc = e.getGraph().getService(ClusterControl.class);
		        cc.collectClusters(Integer.MAX_VALUE);

		        Arrays.equals(testArray(10), (byte[])e.getGraph().getValue(resource1, Bindings.BYTE_ARRAY));
		        Arrays.equals(testArray(100000), (byte[])e.getGraph().getValue(resource2, Bindings.BYTE_ARRAY));
		        Arrays.equals(testArray(10), (byte[])e.getGraph().getValue(resource3, Bindings.BYTE_ARRAY));
				
			}
			
		} );

        
        getSession().sync(new WriteRequest() {

			@Override
			public void perform(WriteGraph g) throws DatabaseException {
				
                g.flushCluster();

                for(int i=0;i<1000;i++) g.newResource();
                resource1 = g.newResource();
                g.claimValue(resource1, testArray(10), Bindings.BYTE_ARRAY);
                
                for(int i=0;i<1000;i++) g.newResource();
                resource2 = g.newResource();
                g.claimValue(resource2, testArray(100000), Bindings.BYTE_ARRAY);
                
                for(int i=0;i<1000;i++) g.newResource();
                resource3 = g.newResource();
                g.claimValue(resource3, testArray(10), Bindings.BYTE_ARRAY);
				
			}
        	
        });

    }
	
	byte[] testArray(int size) {
		byte[] result = new byte[size];
		for(int i=0;i<size;i++) result[i] = (byte)i;
		return result;
	}

}