public SessionDataSet(string sql, TSExecuteStatementResp resp, ConcurentClientQueue clientQueue)
{
this.clientQueue = clientQueue;
this.sql = sql;
this.query_dataset = resp.QueryDataSet;
this.query_id = resp.QueryId;
this.column_size = resp.Columns.Count;
this.current_bitmap = new byte[this.column_size];
this.column_name_lst = new List <string> {
};
this.time_buffer = new ByteBuffer(query_dataset.Time);
this.column_name_index_map = new Dictionary <string, int> {
};
this.column_type_lst = new List <string> {
};
this.duplicate_location = new Dictionary <int, int> {
};
this.value_buffer_lst = new List <ByteBuffer> {
};
this.bitmap_buffer_lst = new List <ByteBuffer> {
};
// some internal variable
this.has_catched_result = false;
this.row_index = 0;
if (resp.ColumnNameIndexMap != null)
{
for (var index = 0; index < resp.Columns.Count; index++)
{
this.column_name_lst.Add("");
this.column_type_lst.Add("");
}
for (var index = 0; index < resp.Columns.Count; index++)
{
var name = resp.Columns[index];
this.column_name_lst[resp.ColumnNameIndexMap[name]] = name;
this.column_type_lst[resp.ColumnNameIndexMap[name]] = resp.DataTypeList[index];
}
}
else
{
this.column_name_lst = resp.Columns;
this.column_type_lst = resp.DataTypeList;
}
for (int index = 0; index < this.column_name_lst.Count; index++)
{
var column_name = this.column_name_lst[index];
if (this.column_name_index_map.ContainsKey(column_name))
{
this.duplicate_location[index] = this.column_name_index_map[column_name];
}
else
{
this.column_name_index_map[column_name] = index;
}
this.value_buffer_lst.Add(new ByteBuffer(this.query_dataset.ValueList[index]));
this.bitmap_buffer_lst.Add(new ByteBuffer(this.query_dataset.BitmapList[index]));
}
}
private bool fetch_results()
{
row_index = 0;
var my_client = clientQueue.Take();
var req = new TSFetchResultsReq(my_client.sessionId, sql, fetch_size, query_id, true);
req.Timeout = default_timeout;
try{
var task = my_client.client.fetchResultsAsync(req);
task.Wait();
var resp = task.Result;
if (resp.HasResultSet)
{
this.query_dataset = resp.QueryDataSet;
// reset buffer
this.time_buffer = new ByteBuffer(resp.QueryDataSet.Time);
this.value_buffer_lst = new List <ByteBuffer> {
};
this.bitmap_buffer_lst = new List <ByteBuffer> {
};
for (int index = 0; index < query_dataset.ValueList.Count; index++)
{
this.value_buffer_lst.Add(new ByteBuffer(query_dataset.ValueList[index]));
this.bitmap_buffer_lst.Add(new ByteBuffer(query_dataset.BitmapList[index]));
}
// reset row index
row_index = 0;
}
if (clientQueue != null)
{
clientQueue.Add(my_client);
}
return(resp.HasResultSet);
}
catch (TException e) {
if (clientQueue != null)
{
clientQueue.Add(my_client);
}
var message = string.Format("Cannot fetch result from server, because of network connection");
throw new TException(message, e);
}
}
