public void TestAppendWithoutTxn()
{
testName = "TestAppendWithoutTxn";
testHome = testFixtureHome + "/" + testName;
string queueDBFileName = testHome + "/" + testName + ".db";
Configuration.ClearDir(testHome);
QueueDatabaseConfig queueConfig = new QueueDatabaseConfig();
queueConfig.Creation = CreatePolicy.ALWAYS;
queueConfig.Length = 1000;
QueueDatabase queueDB = QueueDatabase.Open(
queueDBFileName, queueConfig);
byte[] byteArr = new byte[4];
byteArr = BitConverter.GetBytes((int)1);
DatabaseEntry data = new DatabaseEntry(byteArr);
uint recno = queueDB.Append(data);
// Confirm that the recno is larger than 0.
Assert.AreNotEqual(0, recno);
// Confirm that the record exists in the database.
byteArr = BitConverter.GetBytes(recno);
DatabaseEntry key = new DatabaseEntry();
key.Data = byteArr;
Assert.IsTrue(queueDB.Exists(key));
queueDB.Close();
}
public void TestAppendWithTxn()
{
testName = "TestAppendWithTxn";
testHome = testFixtureHome + "/" + testName;
string queueDBFileName = testHome + "/" + testName + ".db";
string queueDBName =
Path.GetFileNameWithoutExtension(queueDBFileName);
Configuration.ClearDir(testHome);
DatabaseEnvironmentConfig envConfig =
new DatabaseEnvironmentConfig();
envConfig.Create = true;
envConfig.UseTxns = true;
envConfig.UseMPool = true;
DatabaseEnvironment env = DatabaseEnvironment.Open(
testHome, envConfig);
Transaction txn = env.BeginTransaction();
QueueDatabaseConfig queueConfig = new QueueDatabaseConfig();
queueConfig.Creation = CreatePolicy.ALWAYS;
queueConfig.Env = env;
queueConfig.Length = 1000;
/* If environmnet home is set, the file name in
* Open() is the relative path.
*/
QueueDatabase queueDB = QueueDatabase.Open(
queueDBName, queueConfig, txn);
DatabaseEntry data;
int i = 1000;
try
{
while (i > 0)
{
data = new DatabaseEntry(
BitConverter.GetBytes(i));
queueDB.Append(data, txn);
i--;
}
txn.Commit();
}
catch
{
txn.Abort();
}
finally
{
queueDB.Close();
env.Close();
}
}
protected void AddToDb(string keyval, byte[] dataval)
{
var key = new DatabaseEntry(Encoding.UTF8.GetBytes(keyval));
var data = new DatabaseEntry(dataval);
//This is the data insertion method for Queue/Recno databases.
db.Append(data);
//...not this one
//db.Put(key, data);
}
public void PutQueue(byte[] data, Transaction txn = null)
{
QueueDatabase queue = db as QueueDatabase;
if (null != queue)
{
DatabaseEntry v = new DatabaseEntry(data);
queue.Append(v, txn);
}
}
public void TestConsumeWithoutTxn()
{
testName = "TestConsumeWithoutTxn";
testHome = testFixtureHome + "/" + testName;
string queueDBFileName = testHome + "/" +
testName + ".db";
Configuration.ClearDir(testHome);
QueueDatabaseConfig queueConfig =
new QueueDatabaseConfig();
queueConfig.Creation = CreatePolicy.ALWAYS;
queueConfig.ErrorPrefix = testName;
queueConfig.Length = 1000;
QueueDatabase queueDB = QueueDatabase.Open(
queueDBFileName, queueConfig);
DatabaseEntry data = new DatabaseEntry(
ASCIIEncoding.ASCII.GetBytes("data"));
queueDB.Append(data);
DatabaseEntry consumeData = new DatabaseEntry();
KeyValuePair <uint, DatabaseEntry> pair = queueDB.Consume(false);
try
{
DatabaseEntry key =
new DatabaseEntry(BitConverter.GetBytes(pair.Key));
queueDB.Get(key);
}
catch (NotFoundException)
{
throw new ExpectedTestException();
}
finally
{
queueDB.Close();
}
}
public void TestConsumeWithTxn()
{
testName = "TestConsumeWithTxn";
testHome = testFixtureHome + "/" + testName;
string queueDBFileName = testHome + "/" + testName + ".db";
string queueDBName = Path.GetFileName(queueDBFileName);
Configuration.ClearDir(testHome);
DatabaseEnvironmentConfig envConfig =
new DatabaseEnvironmentConfig();
envConfig.Create = true;
envConfig.UseTxns = true;
envConfig.UseMPool = true;
DatabaseEnvironment env = DatabaseEnvironment.Open(
testHome, envConfig);
Transaction txn = env.BeginTransaction();
QueueDatabaseConfig queueConfig =
new QueueDatabaseConfig();
queueConfig.Creation = CreatePolicy.ALWAYS;
queueConfig.Env = env;
queueConfig.Length = 1000;
QueueDatabase queueDB = QueueDatabase.Open(
queueDBName, queueConfig, txn);
int i = 1;
DatabaseEntry data;
DatabaseEntry getData = new DatabaseEntry();
while (i <= 10)
{
data = new DatabaseEntry(
ASCIIEncoding.ASCII.GetBytes(i.ToString()));
queueDB.Append(data, txn);
if (i == 5)
{
getData = data;
}
i++;
}
KeyValuePair <uint, DatabaseEntry> pair = queueDB.Consume(false, txn);
queueDB.Close();
txn.Commit();
env.Close();
Database db = Database.Open(queueDBFileName,
new QueueDatabaseConfig());
try
{
DatabaseEntry key =
new DatabaseEntry(BitConverter.GetBytes(pair.Key));
db.Get(key);
}
catch (NotFoundException)
{
throw new ExpectedTestException();
}
finally
{
db.Close();
}
}