private ConcurrentDictionary <string, AtomicValue <KeyspaceMetadata> > SetupSchema()
{
var ks = _keyspaces.Value;
if (ks == null)
{
var newKeyspaces = new ConcurrentDictionary <string, AtomicValue <KeyspaceMetadata> >();
int streamId = _activeConnection.Value.AllocateStreamId();
using (var rows = ProcessRowset(_activeConnection.Value.Query(streamId, SelectKeyspaces, ConsistencyLevel.Default, false)))
{
foreach (var row in rows.GetRows())
{
var strKsName = row.GetValue <string>("keyspace_name");
var strClass = GetStrategyClass(row.GetValue <string>("strategy_class"));
var drblWrites = row.GetValue <bool>("durable_writes");
var rplctOptions = Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"));
var newMetadata = new KeyspaceMetadata(this, strKsName, drblWrites, strClass, rplctOptions);
newKeyspaces.TryAdd(strKsName, new AtomicValue <KeyspaceMetadata>(newMetadata));
}
}
return(_keyspaces.Value = newKeyspaces);
}
else
{
return(ks);
}
}
private ReadOnlyDictionary <string, KeyspaceMetadata> SetupSchema()
{
var ks = _keyspaces.Value;
if (ks == null)
{
var newKeyspaces = new ReadOnlyDictionary <string, KeyspaceMetadata>();
using (var rows = _session.Query(SelectKeyspaces))
{
foreach (var row in rows.GetRows())
{
var strKsName = row.GetValue <string>("keyspace_name");
var strClass = GetStrategyClass(row.GetValue <string>("strategy_class"));
var drblWrites = row.GetValue <bool>("durable_writes");
var rplctOptions = Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"));
var newMetadata = new KeyspaceMetadata(this, strKsName, drblWrites, strClass,
new ReadOnlyDictionary <string, int>(rplctOptions));
newKeyspaces.InternalSetup(strKsName, newMetadata);
}
}
return(_keyspaces.Value = newKeyspaces);
}
else
{
return(ks);
}
}
private KeyspaceMetadata ParseKeyspaceRow(Row row)
{
return(new KeyspaceMetadata(
ControlConnection,
row.GetValue <string>("keyspace_name"),
row.GetValue <bool>("durable_writes"),
row.GetValue <string>("strategy_class"),
Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"))));
}
private KeyspaceMetadata SetupKeyspace(string keyspace)
{
var sc = SetupSchema();
AtomicValue <KeyspaceMetadata> ksval;
if (!sc.TryGetValue(keyspace, out ksval) || ksval.Value == null || ksval.Value.Tables.Value == null)
{
WaitForSchemaAgreement();
ResetSchema();
sc = SetupSchema();
KeyspaceMetadata ks = null;
{
int streamId = _activeConnection.Value.AllocateStreamId();
using (var rows = ProcessRowset(_activeConnection.Value.Query(streamId, string.Format(
SelectKeyspaces + " WHERE keyspace_name='{0}';",
keyspace), ConsistencyLevel.Default, false)))
{
foreach (var row in rows.GetRows())
{
var strKsName = row.GetValue <string>("keyspace_name");
var strClass = GetStrategyClass(row.GetValue <string>("strategy_class"));
var drblWrites = row.GetValue <bool>("durable_writes");
var rplctOptions = Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"));
ks = new KeyspaceMetadata(this, strKsName, drblWrites, strClass, rplctOptions);
}
}
if (ks == null)
{
throw new InvalidOperationException();
}
}
{
int streamId = _activeConnection.Value.AllocateStreamId();
var ktb = new ConcurrentDictionary <string, AtomicValue <TableMetadata> >();
using (
var rows = ProcessRowset(_activeConnection.Value.Query(streamId, string.Format(SelectColumnFamilies + " WHERE keyspace_name='{0}';", keyspace), ConsistencyLevel.Default, false)))
{
foreach (var row in rows.GetRows())
{
ktb.TryAdd(row.GetValue <string>("columnfamily_name"), new AtomicValue <TableMetadata>(null));
}
}
ks.Tables.Value = ktb;
sc.TryAdd(ks.Name, new AtomicValue <KeyspaceMetadata>(ks));
return(ks);
}
}
else
{
return(ksval.Value);
}
}
private KeyspaceMetadata SetupKeyspace(string keyspace)
{
var sc = SetupSchema();
if (!sc.ContainsKey(keyspace) || sc[keyspace].Tables.Value == null)
{
WaitForSchemaAgreement();
ResetSchema();
sc = SetupSchema();
KeyspaceMetadata ks = null;
using (
var rows =
_session.Query(
string.Format(
SelectKeyspaces + " WHERE keyspace_name='{0}';",
keyspace)))
{
foreach (var row in rows.GetRows())
{
var strKsName = row.GetValue <string>("keyspace_name");
var strClass = GetStrategyClass(row.GetValue <string>("strategy_class"));
var drblWrites = row.GetValue <bool>("durable_writes");
var rplctOptions = Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"));
ks = new KeyspaceMetadata(this, strKsName, drblWrites, strClass,
new ReadOnlyDictionary <string, int>(rplctOptions));
}
}
if (ks == null)
{
throw new InvalidOperationException();
}
var ktb = new ReadOnlyDictionary <string, AtomicValue <TableMetadata> >();
using (
var rows =
_session.Query(string.Format(SelectColumnFamilies + " WHERE keyspace_name='{0}';", keyspace)))
{
foreach (var row in rows.GetRows())
{
ktb.InternalSetup(row.GetValue <string>("columnfamily_name"), new AtomicValue <TableMetadata>(null));
}
}
ks.Tables.Value = ktb;
sc.InternalSetup(ks.Name, ks);
return(ks);
}
else
{
return(sc[keyspace]);
}
}
private KeyspaceMetadata ParseKeyspaceRow(Row row)
{
if (row == null)
{
return(null);
}
return(new KeyspaceMetadata(
Parent,
row.GetValue <string>("keyspace_name"),
row.GetValue <bool>("durable_writes"),
row.GetValue <string>("strategy_class"),
Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options")),
false));
}
private KeyspaceMetadata SetupKeyspace(string keyspace)
{
ConcurrentDictionary <string, AtomicValue <KeyspaceMetadata> > sc = SetupSchema();
AtomicValue <KeyspaceMetadata> ksval;
if (!sc.TryGetValue(keyspace, out ksval) || ksval.Value == null || ksval.Value.Tables.Value == null)
{
WaitForSchemaAgreement();
ResetSchema();
sc = SetupSchema();
KeyspaceMetadata ks = null;
{
var cqlQuery = String.Format(SelectKeyspaces + " WHERE keyspace_name='{0}';", keyspace);
var rows = Query(cqlQuery);
foreach (Row row in rows)
{
var strKsName = row.GetValue <string>("keyspace_name");
string strClass = GetStrategyClass(row.GetValue <string>("strategy_class"));
var drblWrites = row.GetValue <bool>("durable_writes");
IDictionary <string, int> rplctOptions = Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"));
ks = new KeyspaceMetadata(this, strKsName, drblWrites, strClass, rplctOptions);
}
if (ks == null)
{
throw new InvalidOperationException();
}
}
{
var ktb = new ConcurrentDictionary <string, AtomicValue <TableMetadata> >();
var cqlQuery = String.Format(SelectColumnFamilies + " WHERE keyspace_name='{0}';", keyspace);
var rows = Query(cqlQuery);
foreach (Row row in rows)
{
ktb.TryAdd(row.GetValue <string>("columnfamily_name"), new AtomicValue <TableMetadata>(null));
}
ks.Tables.Value = ktb;
sc.TryAdd(ks.Name, new AtomicValue <KeyspaceMetadata>(ks));
return(ks);
}
}
return(ksval.Value);
}
private ConcurrentDictionary <string, AtomicValue <KeyspaceMetadata> > SetupSchema()
{
ConcurrentDictionary <string, AtomicValue <KeyspaceMetadata> > ks = _keyspaces.Value;
if (ks == null)
{
var newKeyspaces = new ConcurrentDictionary <string, AtomicValue <KeyspaceMetadata> >();
var rows = Query(SelectKeyspaces);
foreach (Row row in rows)
{
var strKsName = row.GetValue <string>("keyspace_name");
string strClass = GetStrategyClass(row.GetValue <string>("strategy_class"));
var drblWrites = row.GetValue <bool>("durable_writes");
IDictionary <string, int> rplctOptions = Utils.ConvertStringToMapInt(row.GetValue <string>("strategy_options"));
var newMetadata = new KeyspaceMetadata(this, strKsName, drblWrites, strClass, rplctOptions);
newKeyspaces.TryAdd(strKsName, new AtomicValue <KeyspaceMetadata>(newMetadata));
}
return(_keyspaces.Value = newKeyspaces);
}
return(ks);
}
