/*
* eXist Open Source Native XML Database
* Copyright (C) 2001-04 The eXist Project
* http://exist-db.org
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.storage;
import org.exist.EXistException;
import org.exist.storage.btree.Value;
import org.exist.storage.index.BFile;
import org.exist.storage.sync.Sync;
import org.exist.storage.txn.TransactionManager;
import org.exist.storage.txn.Txn;
import org.exist.test.ExistEmbeddedServer;
import org.exist.util.FixedByteArray;
import org.junit.Rule;
import org.junit.Test;
import java.io.IOException;
import java.util.Optional;
import static java.nio.charset.StandardCharsets.UTF_8;
/**
* @author wolf
*
*/
public class BFileOverflowTest {
@Rule
public final ExistEmbeddedServer existEmbeddedServer = new ExistEmbeddedServer(true, false);
@Test
public void add() throws EXistException, IOException {
final BrokerPool pool = existEmbeddedServer.getBrokerPool();
final TransactionManager mgr = pool.getTransactionManager();
try(final DBBroker broker = pool.get(Optional.of(pool.getSecurityManager().getSystemSubject()))) {
broker.flush();
broker.sync(Sync.MAJOR);
final BFile collectionsDb = (BFile) ((NativeBroker) broker).getStorage(NativeBroker.COLLECTIONS_DBX_ID);
BrokerPool.FORCE_CORRUPTION = true;
final Value key = new Value("test".getBytes());
try(final Txn txn = mgr.beginTransaction()) {
byte[] data = "_HELLO_YOU_".getBytes();
collectionsDb.put(txn, key, new FixedByteArray(data, 0, data.length), true);
for (int i = 1; i < 101; i++) {
String value = "_HELLO_" + i;
data = value.getBytes(UTF_8);
collectionsDb.append(txn, key, new FixedByteArray(data, 0, data.length));
}
mgr.commit(txn);
}
// start a new transaction that will not be committed and thus undone
final Txn txn = mgr.beginTransaction();
for (int i = 1001; i < 2001; i++) {
String value = "_HELLO_" + i;
final byte[] data = value.getBytes(UTF_8);
collectionsDb.append(txn, key, new FixedByteArray(data, 0, data.length));
}
collectionsDb.remove(txn, key);
pool.getJournalManager().get().flush(true, false);
}
}
@Test
public void read() throws EXistException {
BrokerPool.FORCE_CORRUPTION = false;
final BrokerPool pool = existEmbeddedServer.getBrokerPool();
try(final DBBroker broker = pool.get(Optional.of(pool.getSecurityManager().getSystemSubject()))) {
BFile collectionsDb = (BFile)((NativeBroker)broker).getStorage(NativeBroker.COLLECTIONS_DBX_ID);
Value key = new Value("test".getBytes());
Value val = collectionsDb.get(key);
}
}
}