private static HashSet <int> BulkWrite(BerkeleyBulkCursor cursor, out bool blobExists)
{
var keys = new HashSet <int>();
DateTime d1 = new DateTime(2014, 1, 1);
for (int i = 0; i < 3000; i++)
{
if (i == 500)
{
Byte[] key2 = Encoding.UTF8.GetBytes("blob value");
Byte[] value2 = GenerateByteArray(34123);
cursor.AddWrite(key2, value2);
}
Byte[] key = Encoding.UTF8.GetBytes((i + 1).ToString());
String v = d1.AddDays(i).ToString("dddd dd MMMM yyyy");
Byte[] value = Encoding.UTF8.GetBytes(v);
cursor.AddWrite(key, value);
keys.Add(i + 1);
}
var error = cursor.WriteAsync(BerkeleyDbWriteMode.DB_OVERWRITE_DUP).Result;
error.ThrowIfError();
blobExists = true;
return(keys);
}
private static void BulkRead(BerkeleyBulkCursor cursor, HashSet <int> keys, bool blobExists)
{
var checkKeys = new HashSet <int>(keys);
bool blobFound = false;
DateTime d1 = new DateTime(2014, 1, 1);
for (BerkeleyBulkEnumerator buffer = cursor.ReadAsync(Encoding.UTF8.GetBytes("1"), BerkeleyDbOperation.DB_SET).Result;
!buffer.NotFound;
buffer = cursor.ReadAsync(null, BerkeleyDbOperation.DB_NEXT).Result)
{
buffer.Error.ThrowIfError();
foreach (BerkeleyKeyValueBulk data in buffer)
{
String key = Encoding.UTF8.GetString(data.Key.ToArray());
int i;
if (int.TryParse(key, out i))
{
Assert.IsTrue(checkKeys.Remove(i), "key: " + i + " not exists");
String value = Encoding.UTF8.GetString(data.Value.ToArray());
Assert.AreEqual(DateTime.ParseExact(value, "dddd dd MMMM yyyy", null), d1.AddDays(i - 1), "bad value: " + value);
}
else
{
blobFound = key == "blob value" && data.Value.Count == 34123 && CheckByteArray(data.Value);
}
}
}
Assert.AreEqual(checkKeys.Count, 0, "not all keys found");
Assert.IsTrue(blobFound == blobExists, "blob error");
}
public void BulkTest()
{
using (var bdb = CreateDb())
using (var cursor = new BerkeleyBulkCursor(bdb, GetPageSize(bdb)))
{
bool blobExists;
HashSet <int> keys = BulkWrite(cursor, out blobExists);
BulkRead(cursor, keys, blobExists);
keys = BulkDelete(cursor, keys, ref blobExists);
BulkRead(cursor, keys, blobExists);
}
}
private static HashSet <int> BulkDelete(BerkeleyBulkCursor cursor, HashSet <int> keys, ref bool blobExists)
{
foreach (int i in keys.Where(i => (i % 3) == 0))
{
cursor.AddDelete(Encoding.UTF8.GetBytes(i.ToString()));
}
if (blobExists)
{
cursor.AddDelete(Encoding.UTF8.GetBytes("blob value"));
}
BerkeleyError error = cursor.DeleteAsync().Result;
error.ThrowIfError();
blobExists = false;
return(new HashSet <int>(keys.Where(i => (i % 3) != 0)));
}
static void Main(string[] args)
{
var serviceRootUri = new Uri("http://*****:*****@"D:\гуманитарий с дипломом менеджера.jpg");
//ReadFoto(bdb);
}
}
}
