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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.dba;

import org.apache.cayenne.access.DataNode;
import org.apache.cayenne.dba.derby.DerbyPkGenerator;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.testdo.testmap.Artist;
import org.apache.cayenne.unit.di.server.CayenneProjects;
import org.apache.cayenne.unit.di.server.SchemaBuilder;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.util.Collections;

import static org.junit.Assert.assertTrue;

@UseServerRuntime(CayenneProjects.TESTMAP_PROJECT)
public class JdbcPkGeneratorIT extends ServerCase {

    @Inject
    private DbAdapter adapter;

    @Inject
    private DataNode node;
    
    @Inject
    private SchemaBuilder schemaBuilder;

    @Before
    public void setUp() throws Exception {
        schemaBuilder.dropPKSupport();
    }
    
    @After
    public void tearDown() throws Exception {

        if (JdbcPkGenerator.class.isAssignableFrom(adapter.getPkGenerator().getClass())) {
            // reset PK gen properly before updating PKs in DB
            JdbcPkGenerator pkGenerator = (JdbcPkGenerator) adapter.getPkGenerator();

            pkGenerator.setPkStartValue(JdbcPkGenerator.DEFAULT_PK_START_VALUE);

            schemaBuilder.dropPKSupport();
            schemaBuilder.createPKSupport();
        }
    }

    @Test
    public void testLongPk() throws Exception {

        if (!JdbcPkGenerator.class.isAssignableFrom(adapter.getPkGenerator().getClass())) {
            return;
        }

        DbEntity artistEntity = node.getEntityResolver().getObjEntity(Artist.class).getDbEntity();

        DbAttribute pkAttribute = artistEntity.getAttribute(Artist.ARTIST_ID_PK_COLUMN);

        JdbcPkGenerator pkGenerator = (JdbcPkGenerator) adapter.getPkGenerator();

        pkGenerator.setPkStartValue(Integer.MAX_VALUE * 2l);
        if (!JdbcPkGenerator.class.equals(adapter.getPkGenerator().getClass()) &&
        		!DerbyPkGenerator.class.equals(adapter.getPkGenerator().getClass())) { // AUTO_PK_SUPPORT doesn't allow dropping PK support for a single entity
            pkGenerator.dropAutoPk(node, Collections.singletonList(artistEntity));
        }
        pkGenerator.createAutoPk(node, Collections.singletonList(artistEntity));
        pkGenerator.reset();
        
        Object pk = pkGenerator.generatePk(node, pkAttribute);
        assertTrue(pk instanceof Long);
        assertTrue("PK is too small: " + pk, ((Long) pk).longValue() > Integer.MAX_VALUE);
    }
}