public void TesCurrentLSN()
{
testName = "TesCurrentLSN";
SetUpTest(true);
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
/*
* Move the cursor to the beginning of the #1 log file.
* Get the current LSN and confirm that is the position
* the cursor is moved to.
*/
LSN lsn = new LSN(1, 0);
logCursor.Move(lsn);
Assert.AreEqual(lsn.LogFileNumber,
logCursor.CurrentLSN.LogFileNumber);
Assert.AreEqual(lsn.Offset, logCursor.CurrentLSN.Offset);
// Close all.
logCursor.Close();
db.Close();
env.Close();
}
public void TestCurrentRecord()
{
testName = "TestCurrentRecord";
SetUpTest(true);
DatabaseEnvironment env;
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
/*
* Move the cursor to the beginning of the #1 log file.
* Get the current LSN and confirm that is the position
* the cursor is moved to.
*/
LSN lsn = new LSN(1, 0);
logCursor.Move(lsn);
Assert.IsNotNull(logCursor.CurrentRecord.Data);
// Close all.
logCursor.Close();
db.Close();
env.Close();
}
public void TestMoveNext()
{
testName = "TestMoveNext";
SetUpTest(true);
DatabaseEnvironment env;
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
logCursor.MoveLast();
DatabaseEntry curRec = logCursor.CurrentRecord;
for (int i = 0; i < 1000; i++)
{
db.Append(new DatabaseEntry(
ASCIIEncoding.ASCII.GetBytes("new data")));
}
Assert.IsTrue(logCursor.MoveNext());
logCursor.MoveNext();
// Close the log cursor.
logCursor.Close();
db.Close();
env.Close();
}
static void Main(string[] args)
{
LogDbClient client = new LogDbClient();
client.Connect("localhost", 8888, "araqne", "");
LogCursor cursor = client.Query("logdb tables");
foreach (IDictionary o in cursor)
{
Console.WriteLine(PrettyPrint(o));
}
cursor.Dispose();
client.Close();
}
public void TestMovePrev()
{
testName = "TestMovePrev";
SetUpTest(true);
DatabaseEnvironment env;
LSN lsn;
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
// Get the last two LSN in log file.
logCursor.MoveLast();
Assert.IsTrue(logCursor.MovePrev());
// Close all.
logCursor.Close();
db.Close();
env.Close();
}
public void TestMove()
{
testName = "TestMove";
SetUpTest(true);
DatabaseEnvironment env;
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
// Move the cursor to specified location in log files.
LSN lsn = new LSN(1, 0);
Assert.IsTrue(logCursor.Move(lsn));
// Close all.
logCursor.Close();
db.Close();
env.Close();
}
public void TestMoveLast()
{
testName = "TestMoveLast";
SetUpTest(true);
DatabaseEnvironment env;
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
// Move to the last LSN in log file.
Assert.IsTrue(logCursor.MoveLast());
// The offset of last LSN shouldn't be 0.
Assert.AreNotEqual(0, logCursor.CurrentLSN.Offset);
// Close all.
logCursor.Close();
db.Close();
env.Close();
}
public void TestRefresh()
{
testName = "TestRefresh";
SetUpTest(true);
DatabaseEnvironment env;
LSN lsn;
RecnoDatabase db;
Logging(testHome, testName, out env, out db);
// Get log cursor to read/write log.
LogCursor logCursor = env.GetLogCursor();
// Move the cursor to the last record.
logCursor.MoveLast();
DatabaseEntry curRec = logCursor.CurrentRecord;
// Put some new records into database.
for (int i = 0; i < 10; i++)
{
db.Append(new DatabaseEntry(
ASCIIEncoding.ASCII.GetBytes("new data")));
}
// Get the current record that cursor points to.
logCursor.Refresh();
// It shouldn't be changed.
Assert.AreEqual(curRec.Data,
logCursor.CurrentRecord.Data);
// Close all.
logCursor.Close();
db.Close();
env.Close();
}
