/* HeliDB -- A simple database for Java, http://www.helidb.org
* Copyright (C) 2008, 2009 Karl Gustafsson
*
* This file is a part of HeliDB.
*
* HeliDB is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeliDB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.helidb.impl.txn.sc;
import java.util.HashMap;
import java.util.Map;
import org.entityfs.Directory;
import org.entityfs.EFile;
import org.entityfs.Entity;
import org.entityfs.support.log.LogAdapterHolder;
import org.entityfs.support.log.StdOutLogAdapter;
import org.entityfs.util.Directories;
import org.helidb.Database;
import org.helidb.UnknownOrderBackendDBTester;
import org.helidb.backend.heap.HeapBackendFactory;
import org.helidb.backend.index.bplus.BPlusTreeIndexBackendFactory;
import org.helidb.backend.index.bplus.BPlusTreeIndexBackendFileBackedNodeRepositoryBuilder;
import org.helidb.lang.hasher.StringToLongHasher;
import org.helidb.lang.serializer.LongNullSerializer;
import org.helidb.lang.serializer.StringSerializer;
import org.helidb.txn.TransactionalDatabase;
import org.helidb.util.bplus.LruCacheNodeRepositoryBuilder;
import org.junit.Test;
public class ScTxnDbOnHeapBackendWBPlusTreeIndexTest extends AbstractScTxnDbTest<Long>
{
private final Map<Database<?, ?>, Entity[]> m_dbFiles = new HashMap<Database<?, ?>, Entity[]>();
private ShadowCopyTransactionalDatabase<String, String, Long> createDatabaseUsingFile(Directory dir, EFile f, EFile indf)
{
LogAdapterHolder lah = new LogAdapterHolder(new StdOutLogAdapter());
BPlusTreeIndexBackendFileBackedNodeRepositoryBuilder<Long> nrb = new BPlusTreeIndexBackendFileBackedNodeRepositoryBuilder<Long>();
nrb.setKeySerializer(LongNullSerializer.INSTANCE);
nrb.setLogAdapterHolder(lah);
ShadowCopyTransactionalDatabase<String, String, Long> res = new ShadowCopyTransactionalDatabase<String, String, Long>(new BPlusTreeIndexFileManager(new HeapBackendFileManager(f, dir), indf, dir), new BPlusTreeIndexBackendFactory<String, String, Long, Long>(new HeapBackendFactory<String, String>(StringSerializer.INSTANCE, StringSerializer.INSTANCE, lah), new LruCacheNodeRepositoryBuilder<Long, Long>().setProxiedBuilder(nrb), new StringToLongHasher(), lah), false, lah);
m_dbFiles.put(res, new Entity[] { dir, f, indf });
return res;
}
@Override
public ShadowCopyTransactionalDatabase<String, String, Long> createDatabaseWoTxnInDirectory(Directory dir)
{
EFile f = Directories.newFile(dir, "db");
EFile indf = Directories.newFile(dir, "index");
return createDatabaseUsingFile(dir, f, indf);
}
@Override
public ShadowCopyTransactionalDatabase<String, String, Long> createNewDatabaseUsingSameFiles(TransactionalDatabase<String, String> otherDb)
{
Entity[] ents = m_dbFiles.get(otherDb);
return createDatabaseUsingFile((Directory) ents[0], (EFile) ents[1], (EFile) ents[2]);
}
@Test
public void testCursor()
{
Database<String, String> db = createDatabase();
try
{
UnknownOrderBackendDBTester.testCursor(db);
}
finally
{
tearDownDatabase(db);
}
}
@Test
public void testCursorIterator()
{
Database<String, String> db = createDatabase();
try
{
UnknownOrderBackendDBTester.testCursorIterator(db);
}
finally
{
tearDownDatabase(db);
}
}
@Test
public void testCursorBackwardsIterator()
{
Database<String, String> db = createDatabase();
try
{
UnknownOrderBackendDBTester.testCursorBackwardsIterator(db);
}
finally
{
tearDownDatabase(db);
}
}
}