internal DatabasePool(string hostname, int port, string databaseName, ODatabaseType databaseType, string userName, string userPassword, int poolSize, string alias)
{
Hostname = hostname;
Port = port;
DatabaseName = databaseName;
DatabaseType = databaseType;
UserName = userName;
UserPassword = userPassword;
PoolSize = poolSize;
Alias = alias;
_connections = new Queue<Connection>();
for (int i = 0; i < poolSize; i++)
{
Connection connection = new Connection(Hostname, Port, databaseName, databaseType, userName, userPassword, alias, true);
_connections.Enqueue(connection);
}
//get release from last connection
var lastConnection = _connections.LastOrDefault();
if (lastConnection != null)
{
Release = lastConnection.Document.GetField<string>("OrientdbRelease");
}
}
internal static Connection ReleaseConnection(string alias)
{
lock (_syncRoot)
{
Connection connection = null;
if (_databasePools.Exists(db => db.Alias == alias))
{
DatabasePool pool = _databasePools.Find(db => db.Alias == alias);
// deque free database connection if the pool has one
if (pool.CurrentSize > 0)
{
connection = pool.DequeueConnection();
}
// if the pool is empty - create new dedicated database connection
else if (pool.CurrentSize == 0)
{
connection = new Connection(pool.Hostname, pool.Port, pool.DatabaseName, pool.DatabaseType, pool.UserName, pool.UserPassword, alias, false);
}
}
return connection;
}
}
internal static void ReturnConnection(Connection connection)
{
lock (_syncRoot)
{
if (_databasePools.Exists(db => db.Alias == connection.Alias) && connection.IsReusable)
{
DatabasePool pool = _databasePools.Find(q => q.Alias == connection.Alias);
pool.EnqueueConnection(connection);
}
else
{
connection.Dispose();
}
}
}
internal DatabasePool(string hostname, int port, string databaseName, ODatabaseType databaseType, string userName, string userPassword, int poolSize, string alias)
{
Hostname = hostname;
Port = port;
DatabaseName = databaseName;
DatabaseType = databaseType;
UserName = userName;
UserPassword = userPassword;
PoolSize = poolSize;
Alias = alias;
_connections = new Queue<Connection>();
for (int i = 0; i < poolSize; i++)
{
Connection connection = new Connection(Hostname, Port, databaseName, databaseType, userName, userPassword, alias, true);
_connections.Enqueue(connection);
}
}
public OServer(string hostname, int port, string userName, string userPassword)
{
_connection = new Connection(hostname, port, userName, userPassword);
}
internal OLoadRecord(Connection connection)
{
_connection = connection;
}
internal ORecordMetadata(Connection connection)
{
_connection = connection;
}
internal OSqlCreateProperty(Connection connection)
{
_connection = connection;
_sqlQuery = new SqlQuery(_connection);
}
public Response(Connection connection)
{
this.Connection = connection;
}
internal OCommandQuery(Connection connection, CommandPayloadBase payload)
{
_connection = connection;
_payload = payload;
}
internal OClusterQuery(Connection _connection)
{
this._connection = _connection;
}
internal static void ReturnConnection(Connection connection)
{
lock (_syncRoot)
{
DatabasePool pool = _databasePools.Find(q => q.Alias == connection.Alias);
// enqueue the connection back if it's active, reusable and the pool size is not full
// otherwise dispose it
if ((pool != null) &&
(pool.CurrentSize < pool.PoolSize) &&
connection.IsActive &&
connection.IsReusable)
{
pool.EnqueueConnection(connection);
}
else
{
connection.Dispose();
}
}
}
internal Request(Connection connection)
{
OperationMode = OperationMode.Synchronous;
DataItems = new List<RequestDataItem>();
this.Connection = connection;
}
internal void SetConnection(Connection connection)
{
_connection = connection;
}
internal void EnqueueConnection(Connection connection)
{
if (connection.IsActive)
_connections.Enqueue(connection);
}
internal OSqlCreateProperty(Connection connection)
{
_connection = connection;
}
internal void EnqueueConnection(Connection connection)
{
_connections.Enqueue(connection);
}
internal OSqlDeleteCluster(Connection connection, short clusterid)
{
_connection = connection;
_clusterid = clusterid;
}
