/*******************************************************************************
 * 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.ArrayList;
import java.util.concurrent.ConcurrentSkipListSet;

import org.junit.Test;
import org.simantics.db.AsyncReadGraph;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.Session;
import org.simantics.db.common.request.AsyncReadRequest;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.procedure.Procedure;
import org.simantics.db.request.Read;
import org.simantics.db.testing.base.ExistingDatabaseTest;
import org.simantics.layer0.Layer0;

public class SyncAsyncSyncTest3 extends ExistingDatabaseTest {
	
	@Test
	public void test() throws Exception {
		
		Session session = getSession();
		
		final ConcurrentSkipListSet<String> names = new ConcurrentSkipListSet<String>();
		final ArrayList<Resource> resources = new ArrayList<Resource>();
		final Resource root = SyncAsyncSyncUtils.createNames(session, names, resources);
		if (DEBUG)
		    System.out.println("Root resource is " + root);

		session.syncRequest(new AsyncReadRequest() {

            @Override
            public void run(AsyncReadGraph graph) {

                for(final Resource r : resources) {

                    graph.asyncRequest(new Read<String>() {

                        @Override
                        public String perform(ReadGraph graph) throws DatabaseException {
                            Layer0 b = Layer0.getInstance(graph);
                            return graph.getRelatedValue(r, b.HasName);
                        }

                        @Override
                        public String toString() {
                            return "Read " + r.getResourceId();
                        }

                    }, new Procedure<String>() {

                        @Override
                        public void exception(Throwable t) {
                            t.printStackTrace();
                        }

                        @Override
                        public void execute(String result) {
                            names.remove(result);
                        }

                    });

                }

            }

		});
		
		assert(names.isEmpty());
		
	}

}