/*
* eXist Open Source Native XML Database
* Copyright (C) 2001-04 The eXist Team
*
* 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 java.io.StringWriter;
import java.io.Writer;
import java.util.Iterator;
import java.util.List;
import junit.framework.TestCase;
import junit.textui.TestRunner;
import org.exist.numbering.NodeId;
import org.exist.numbering.NodeIdFactory;
import org.exist.security.SecurityManager;
import org.exist.storage.btree.IndexQuery;
import org.exist.storage.btree.Value;
import org.exist.storage.dom.DOMFile;
import org.exist.storage.txn.TransactionManager;
import org.exist.storage.txn.Txn;
import org.exist.util.Configuration;
/**
* Tests transaction management and basic recovery for the DOMFile class.
*
* @author wolf
*
*/
public class DOMFileRecoverTest extends TestCase {
public static void main(String[] args) {
TestRunner.run(DOMFileRecoverTest.class);
}
private BrokerPool pool;
public void testAdd() {
BrokerPool.FORCE_CORRUPTION = false;
DBBroker broker = null;
NodeIdFactory idFact = pool.getNodeFactory();
try {
System.out.println("Add some random data and force db corruption ...\n");
broker = pool.get(SecurityManager.SYSTEM_USER);
assertNotNull(broker);
//TODO : is this necessary ?
broker.flush();
TransactionManager mgr = pool.getTransactionManager();
assertNotNull(mgr);
Txn txn = mgr.beginTransaction();
assertNotNull(txn);
System.out.println("Transaction started ...");
DOMFile domDb = ((NativeBroker) broker).getDOMFile();
assertNotNull(domDb);
domDb.setOwnerObject(this);
// put 1000 values into the btree
long firstToRemove = -1;
for (int i = 1; i <= 10000; i++) {
byte[] data = ("Value" + i).getBytes();
NodeId id = idFact.createInstance(i);
long addr = domDb.put(txn, new NativeBroker.NodeRef(500, id), data);
// TODO : test addr ?
if (i == 1)
firstToRemove = addr;
}
domDb.closeDocument();
// remove all
NativeBroker.NodeRef ref = new NativeBroker.NodeRef(500);
assertNotNull(ref);
IndexQuery idx = new IndexQuery(IndexQuery.TRUNC_RIGHT, ref);
assertNotNull(idx);
domDb.remove(txn, idx, null);
domDb.removeAll(txn, firstToRemove);
// put some more
for (int i = 1; i <= 10000; i++) {
byte[] data = ("Value" + i).getBytes();
long addr = domDb.put(txn, new NativeBroker.NodeRef(500, idFact.createInstance(i)), data);
// TODO : test addr ?
}
domDb.closeDocument();
mgr.commit(txn);
System.out.println("Transaction commited ...");
txn = mgr.beginTransaction();
System.out.println("Transaction started ...");
// put 1000 new values into the btree
for (int i = 1; i <= 1000; i++) {
byte[] data = ("Value" + i).getBytes();
long addr = domDb.put(txn, new NativeBroker.NodeRef(501, idFact.createInstance(i)), data);
// TODO : test addr ?
if (i == 1)
firstToRemove = addr;
}
domDb.closeDocument();
mgr.commit(txn);
System.out.println("Transaction commited ...");
// the following transaction is not committed and will be rolled back during recovery
txn = mgr.beginTransaction();
System.out.println("Transaction started ...");
for (int i = 1; i <= 200; i++) {
domDb.remove(txn, new NativeBroker.NodeRef(500, idFact.createInstance(i)));
}
idx = new IndexQuery(IndexQuery.TRUNC_RIGHT, new NativeBroker.NodeRef(501));
domDb.remove(txn, idx, null);
domDb.removeAll(txn, firstToRemove);
// Don't commit...
mgr.commit(txn);
mgr.getJournal().flushToLog(true);
System.out.println("Transaction interrupted ...");
Writer writer = new StringWriter();
domDb.dump(writer);
System.out.println(writer.toString());
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
} finally {
pool.release(broker);
}
}
public void testGet() {
DBBroker broker = null;
try {
System.out.println("Recover and read the data ...\n");
broker = pool.get(SecurityManager.SYSTEM_USER);
assertNotNull(broker);
TransactionManager mgr = pool.getTransactionManager();
assertNotNull(mgr);
DOMFile domDb = ((NativeBroker) broker).getDOMFile();
assertNotNull(domDb);
domDb.setOwnerObject(this);
IndexQuery query = new IndexQuery(IndexQuery.GT, new NativeBroker.NodeRef(500));
assertNotNull(query);
List keys = domDb.findKeys(query);
assertNotNull(keys);
int count = 0;
for (Iterator i = keys.iterator(); i.hasNext(); count++) {
Value key = (Value) i.next();
assertNotNull(key);
Value value = domDb.get(key);
assertNotNull(value);
System.out.println(new String(value.data(), value.start(), value.getLength()));
}
System.out.println("Values read: " + count);
Writer writer = new StringWriter();
domDb.dump(writer);
System.out.println(writer.toString());
} catch (Exception e) {
fail(e.getMessage());
} finally {
pool.release(broker);
}
}
protected void setUp() {
try {
Configuration config = new Configuration();
BrokerPool.configure(1, 5, config);
pool = BrokerPool.getInstance();
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
protected void tearDown() {
BrokerPool.stopAll(false);
}
}