/* 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.CRSSortedBackendDBTester;
import org.helidb.Database;
import org.helidb.backend.bpluscrs.ConstantRecordSizeBPlusTreeBackendFactory;
import org.helidb.lang.serializer.CharacterNullSerializer;
import org.helidb.lang.serializer.CharacterSerializer;
import org.helidb.lang.serializer.IntegerNullSerializer;
import org.helidb.lang.serializer.LongSerializer;
import org.helidb.txn.TransactionalDatabase;
import org.helidb.util.bplus.FileBackedNodeRepositoryBuilder;
import org.helidb.util.bplus.KeyAndValue;
import org.helidb.util.bplus.LruCacheNodeRepositoryBuilder;
import org.helidb.util.bplus.NumberOfRecordsNodeSizeStrategy;
import org.junit.Test;
public class ScTxnDbOnConstantRecordSizeBPlusTreeBackendTest extends AbstractScTxnDbOnConstantRecordSizeBackendTest<KeyAndValue<Integer, Long>>
{
private final Map<Database<?, ?>, Entity[]> m_dbFiles = new HashMap<Database<?, ?>, Entity[]>();
private ShadowCopyTransactionalDatabase<Integer, Long, KeyAndValue<Integer, Long>> createDatabaseUsingFile(Directory dir, EFile f)
{
LogAdapterHolder lah = new LogAdapterHolder(new StdOutLogAdapter());
FileBackedNodeRepositoryBuilder<Integer, Long> fbnrb = new FileBackedNodeRepositoryBuilder<Integer, Long>().setInternalPointerSize(4).setKeySerializer(IntegerNullSerializer.INSTANCE).setValueSerializer(LongSerializer.INSTANCE).setLeafNodeHasPointersToAdjacentNodes(true).setLogAdapterHolder(lah).setNodeSizeStrategy(new NumberOfRecordsNodeSizeStrategy(2));
LruCacheNodeRepositoryBuilder<Integer, Long> nrb = new LruCacheNodeRepositoryBuilder<Integer, Long>().setProxiedBuilder(fbnrb).setMaxCacheSize(10);
ConstantRecordSizeBPlusTreeBackendFactory<Integer, Long> bf = new ConstantRecordSizeBPlusTreeBackendFactory<Integer, Long>(nrb, lah);
ShadowCopyTransactionalDatabase<Integer, Long, KeyAndValue<Integer, Long>> res = new ShadowCopyTransactionalDatabase<Integer, Long, KeyAndValue<Integer, Long>>(new SingleFileManager(f, dir), bf, false, lah);
m_dbFiles.put(res, new Entity[] { dir, f });
return res;
}
@Override
public ShadowCopyTransactionalDatabase<Integer, Long, KeyAndValue<Integer, Long>> createDatabaseWoTxnInDirectory(Directory dir)
{
EFile f = Directories.newFile(dir, "db");
return createDatabaseUsingFile(dir, f);
}
@Override
public ShadowCopyTransactionalDatabase<Integer, Long, KeyAndValue<Integer, Long>> createNewDatabaseUsingSameFiles(TransactionalDatabase<Integer, Long> otherDb)
{
Entity[] ents = m_dbFiles.get(otherDb);
return createDatabaseUsingFile((Directory) ents[0], (EFile) ents[1]);
}
private ShadowCopyTransactionalDatabase<Character, Character, KeyAndValue<Character, Character>> createCharacterDatabaseUsingFile(Directory dir, EFile f)
{
LogAdapterHolder lah = new LogAdapterHolder(new StdOutLogAdapter());
FileBackedNodeRepositoryBuilder<Character, Character> fbnrb = new FileBackedNodeRepositoryBuilder<Character, Character>().setInternalPointerSize(4).setKeySerializer(CharacterNullSerializer.INSTANCE).setValueSerializer(CharacterSerializer.INSTANCE).setLeafNodeHasPointersToAdjacentNodes(true).setLogAdapterHolder(lah).setNodeSizeStrategy(new NumberOfRecordsNodeSizeStrategy(2));
LruCacheNodeRepositoryBuilder<Character, Character> nrb = new LruCacheNodeRepositoryBuilder<Character, Character>().setProxiedBuilder(fbnrb).setMaxCacheSize(10);
ConstantRecordSizeBPlusTreeBackendFactory<Character, Character> bf = new ConstantRecordSizeBPlusTreeBackendFactory<Character, Character>(nrb, lah);
ShadowCopyTransactionalDatabase<Character, Character, KeyAndValue<Character, Character>> res = new ShadowCopyTransactionalDatabase<Character, Character, KeyAndValue<Character, Character>>(new SingleFileManager(f, dir), bf, false, lah);
m_dbFiles.put(res, new Entity[] { dir, f });
return res;
}
@Override
protected TransactionalDatabase<Character, Character> createCharacterDatabaseWoTxnInDirectory(Directory dir)
{
EFile f = Directories.newFile(dir, "db");
return createCharacterDatabaseUsingFile(dir, f);
}
@Test
public void testCursor()
{
Database<Integer, Long> db = createDatabase();
try
{
CRSSortedBackendDBTester.testCursor(db);
}
finally
{
tearDownDatabase(db);
}
}
@Test
public void testCursorIterator()
{
Database<Integer, Long> db = createDatabase();
try
{
CRSSortedBackendDBTester.testCursorIterator(db);
}
finally
{
tearDownDatabase(db);
}
}
@Test
public void testCursorBackwardsIterator()
{
Database<Integer, Long> db = createDatabase();
try
{
CRSSortedBackendDBTester.testCursorBackwardsIterator(db);
}
finally
{
tearDownDatabase(db);
}
}
}