public IKeyspace Create(
ICassandraClient client,
string keyspaceName,
IDictionary<string, Dictionary<string, string>> keyspaceDesc,
ConsistencyLevel consistencyLevel,
FailoverPolicy failoverPolicy,
IKeyedObjectPool<Endpoint, ICassandraClient> pool)
{
switch (client.Version)
{
case CassandraVersion.v0_6_0_beta_3:
throw new NotImplementedException("Version 0.6.0 not implimented yet");
default:
case CassandraVersion.v0_5_1:
return new _051.Keyspace(
client,
keyspaceName,
keyspaceDesc,
consistencyLevel,
failoverPolicy,
pool,
monitor
);
}
}
/// <summary>
/// Creates a unique map name for the keyspace and its consistency level
/// </summary>
/// <param name="keyspaceName"></param>
/// <param name="consistencyLevel"></param>
/// <param name="failoverPolicy"></param>
/// <returns></returns>
string BuildKeyspaceMapName(string keyspaceName, ConsistencyLevel consistencyLevel, FailoverPolicy failoverPolicy)
{
return string.Format("{0}[{1},{2}]", keyspaceName, consistencyLevel, failoverPolicy);
}
public IKeyspace GetKeyspace(string keyspaceName, ConsistencyLevel consistencyLevel, FailoverPolicy failoverPolicy)
{
var key = BuildKeyspaceMapName(keyspaceName, consistencyLevel, failoverPolicy);
IKeyspace keyspace;
if (keyspaceMap.ContainsKey(key))
keyspace = keyspaceMap[key];
else
{
if (Keyspaces.Contains(keyspaceName))
{
IDictionary<string, Dictionary<string, string>> keyspaceDesc = null;
if(Version == CassandraVersion.v0_5_1)
keyspaceDesc = cassandra051.describe_keyspace(keyspaceName);
else if(Version == CassandraVersion.v0_6_0_beta_3)
keyspaceDesc = cassandra060.describe_keyspace(keyspaceName);
keyspace = keyspaceFactory.Create(this, keyspaceName, keyspaceDesc,
consistencyLevel, failoverPolicy, pool);
IKeyspace tmp = null;
if (!keyspaceMap.ContainsKey(key))
{
keyspaceMap.Add(key, keyspace);
tmp = keyspaceMap[key];
}
if (tmp != null)
// There was another put that got here before we did.
keyspace = tmp;
}
else
throw new Exception("Requested key space not exist, keyspaceName=" + keyspaceName);
}
return keyspace;
}
