public void KeyValueTest()
{
using (var bdb = CreateDb())
{
var keys = new List <int>();
for (int i = 0; i < 6; i++)
{
keys.Add(i);
var key = Encoding.UTF8.GetBytes("key" + i.ToString());
var value = Encoding.UTF8.GetBytes("value" + i.ToString());
BerkeleyError error = bdb.WriteAsync(key, value, 0).Result;
error.ThrowIfError();
}
using (var cursor = new BerkeleyKeyValueCursor(bdb))
{
KeyValueCheck(cursor, keys);
BerkeleyError error = cursor.DeleteCurrentAsync().Result;
error.ThrowIfError();
keys.Remove(keys.Last());
KeyValueCheck(cursor, keys);
var key = Encoding.UTF8.GetBytes("key3");
error = cursor.DeleteAsync(key, 0).Result;
error.ThrowIfError();
keys.Remove(3);
KeyValueCheck(cursor, keys);
}
}
}
private static HashSet <KeyValuePair <int, DateTime> > BulkDuplicateDelete(BerkeleyBulkDuplicateCursor cursor, HashSet <KeyValuePair <int, DateTime> > data, ref bool blobExists)
{
var checkData = new HashSet <KeyValuePair <int, DateTime> >();
Byte[] key, value;
foreach (KeyValuePair <int, DateTime> keyValue in data)
{
if ((keyValue.Value.Day % 3) == 0)
{
key = Encoding.UTF8.GetBytes(keyValue.Key.ToString());
value = Encoding.UTF8.GetBytes(keyValue.Value.ToString("dddd dd MMMM yyyy"));
cursor.AddDelete(key, value);
}
else
{
checkData.Add(keyValue);
}
}
key = Encoding.UTF8.GetBytes((500 / 100 + 1).ToString());
value = GenerateByteArray(34123);
cursor.AddDelete(key, value);
BerkeleyError error = cursor.DeleteAsync().Result;
error.ThrowIfError();
blobExists = false;
return(checkData);
}
private static BerkeleyDb CreateDb(BerkeleyDbFlags flags)
{
var client = new HttpClient();
client.BaseAddress = serviceRootUri;
var methods = new BerkeleyDbWebApiMethods(client, new Newtonsoft.Json.JsonSerializer(), new System.Net.Http.Formatting.JsonMediaTypeFormatter());
var bdb = new BerkeleyDb(methods, BerkeleyDbType.DB_BTREE, flags);
String fileName = Path.Combine(Path.GetTempPath(), "test.bdb");
File.Delete(fileName);
BerkeleyError error = bdb.OpenAsync(fileName, BerkeleyDbOpenFlags.DB_CREATE).Result;
error.ThrowIfError();
return(bdb);
}
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)));
}