/*******************************************************************************
 * 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.client;

import java.util.Collection;

import org.junit.Test;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.Session;
import org.simantics.db.WriteGraph;
import org.simantics.db.common.request.ReadRequest;
import org.simantics.db.common.request.WriteRequest;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.exception.ValidationException;
import org.simantics.db.testing.annotation.Fails;
import org.simantics.db.testing.common.TestBase;
import org.simantics.db.testing.common.Tests;
import org.simantics.db.testing.impl.Configuration;
import org.simantics.layer0.Layer0;

public class ConnectionTest4 {
	private static final int RECONNECT_COUNT = Configuration.get().connectionReconnectCount;
	private static final boolean SKIP = Configuration.get().skipServerCreation;
	private Session session = null;
    @Test
    @Fails
	public void test4() throws DatabaseException {
	    if (SKIP) {
	    	System.out.println("This test is not valid for remote server.");
	    	return;
	    }
        for (int i=0; i<RECONNECT_COUNT; ++i) {
            connectionTest();
        }
	}
	void connectionTest() throws DatabaseException {
        try {
            session = Tests.getTestHandler().getSession();
            final String newInstanceName ="ConnectionTest4InstanceName-" +
                TestBase.getRandomString();

            session.syncRequest(new WriteRequest() {
                @Override
                public void perform(WriteGraph g) throws DatabaseException {
                    Layer0 b = Layer0.getInstance(g);
                    Resource newResource = g.newResource();
                    g.claim(newResource, b.InstanceOf, null, b.Type);
                    g.claimLiteral(newResource, b.HasName, newInstanceName);
                    g.claim(g.getRootLibrary(), b.ConsistsOf, newResource);
                }
            });

            session.syncRequest(new ReadRequest() {
                @Override
                public void run(ReadGraph g) throws DatabaseException {
                    Layer0 b = Layer0.getInstance(g);
                    Collection<Resource> resources = g.getObjects(g.getRootLibrary(), b.ConsistsOf);
                    Resource newResource = null;
                    for (Resource r : resources) {
                        String value = g.getPossibleRelatedValue(r, b.HasName);
                        if (null != value && value.equals(newInstanceName)) {
                            newResource = r;
                            break;
                        }
                    }
                    if (newResource == null) {
                        throw new ValidationException("Could not find created resource");
                    }
                    if (!g.isInstanceOf(newResource, b.Type))
                        throw new ValidationException("Created resource is not an instance of Type");
                }
            });
            Tests.closeSession(session);
            session = Tests.getTestHandler().getSession();
            session.syncRequest(new ReadRequest() {
                @Override
                public void run(ReadGraph g) throws DatabaseException {
                    Layer0 b = Layer0.getInstance(g);
                    Collection<Resource> resources = g.getObjects(g.getRootLibrary(), b.ConsistsOf);
                    Resource newResource = null;
                    for (Resource r : resources) {
                        String value = g.getPossibleRelatedValue(r, b.HasName);
                        if (null != value && value.equals(newInstanceName)) {
                            newResource = r;
                            break;
                        }
                    }
                    if (newResource == null) {
                        throw new ValidationException("Could not find created resource");
                    }
                    if (!g.isInstanceOf(newResource, b.Type))
                        throw new ValidationException("Created resource is not an instance of Type");
                }
            });
            Tests.closeSession(session);
//        } catch (ClassNotFoundException e) {
//            throw new DatabaseException("Test failed.", e);
        } finally {
            Tests.closeSession(session);
        }
	}
}