internal async Task <FetchResponse> InternalFetchAsync(uint statementId, ulong offset, int max) { FetchResponse resp = await _client.FetchRequestAsync(this.ConnectionId, statementId, offset, (int)max, this.Options); return(resp); }
public void QueryManyRowTest() { var client = new PhoenixClient(_credentials); string connId = GenerateRandomConnId(); RequestOptions options = RequestOptions.GetGatewayDefaultOptions(); // In gateway mode, url format will be https://<cluster dns name>.azurehdinsight.net/hbasephoenix<N>/ // Requests sent to hbasephoenix0/ will be forwarded to PQS on workernode0 options.AlternativeEndpoint = "hbasephoenix0/"; string tableName = "Persons" + connId; OpenConnectionResponse openConnResponse = null; CreateStatementResponse createStatementResponse = null; try { // Opening connection pbc::MapField <string, string> info = new pbc::MapField <string, string>(); openConnResponse = client.OpenConnectionRequestAsync(connId, info, options).Result; // Syncing connection ConnectionProperties connProperties = new ConnectionProperties { HasAutoCommit = true, AutoCommit = false, HasReadOnly = true, ReadOnly = false, TransactionIsolation = 0, Catalog = "", Schema = "", IsDirty = true }; client.ConnectionSyncRequestAsync(connId, connProperties, options).Wait(); createStatementResponse = client.CreateStatementRequestAsync(connId, options).Result; // Running query 1 string sql1 = "CREATE TABLE " + tableName + " (LastName varchar(255) PRIMARY KEY,FirstName varchar(255))"; client.PrepareAndExecuteRequestAsync(connId, sql1, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Wait(); // Commit statement 1 client.CommitRequestAsync(connId, options).Wait(); // Creating statement 2 string sql2 = "UPSERT INTO " + tableName + " VALUES (?,?)"; PrepareResponse prepareResponse = client.PrepareRequestAsync(connId, sql2, long.MaxValue, options).Result; StatementHandle statementHandle = prepareResponse.Statement; // Insert 300 rows for (int i = 0; i < 300; i++) { pbc::RepeatedField <TypedValue> list = new pbc.RepeatedField <TypedValue>(); TypedValue v1 = new TypedValue { StringValue = "d" + i, Type = Rep.String }; TypedValue v2 = new TypedValue { StringValue = "x" + i, Type = Rep.String }; list.Add(v1); list.Add(v2); ExecuteResponse executeResponse = client.ExecuteRequestAsync(statementHandle, list, long.MaxValue, true, options).Result; } // Commit statement 2 client.CommitRequestAsync(connId, options).Wait(); // Running query 3 string sql3 = "select * from " + tableName; ExecuteResponse execResponse3 = client.PrepareAndExecuteRequestAsync(connId, sql3, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Result; pbc::RepeatedField <Row> rows = execResponse3.Results[0].FirstFrame.Rows; for (int i = 0; i < rows.Count; i++) { Row row = rows[i]; Debug.WriteLine(row.Value[0].ScalarValue.StringValue + " " + row.Value[1].ScalarValue.StringValue); } // 100 is hard coded in server side as default firstframe size // In order to get remaining rows, FetchRequestAsync is used Assert.AreEqual(100, rows.Count); // Fetch remaining rows, offset is not used, simply set to 0 // if FetchResponse.Frame.Done = true, that means all the rows fetched FetchResponse fetchResponse = client.FetchRequestAsync(connId, createStatementResponse.StatementId, 0, int.MaxValue, options).Result; Assert.AreEqual(200, fetchResponse.Frame.Rows.Count); Assert.AreEqual(true, fetchResponse.Frame.Done); // Running query 4 string sql4 = "DROP TABLE " + tableName; client.PrepareAndExecuteRequestAsync(connId, sql4, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Wait(); // Commit statement 4 client.CommitRequestAsync(connId, options).Wait(); } catch (Exception ex) { Assert.Fail(ex.Message); } finally { if (createStatementResponse != null) { client.CloseStatementRequestAsync(connId, createStatementResponse.StatementId, options).Wait(); createStatementResponse = null; } if (openConnResponse != null) { client.CloseConnectionRequestAsync(connId, options).Wait(); openConnResponse = null; } } }
public static async void ExecuteProcedure(DataContract dataContract) { string connId = Guid.NewGuid().ToString(); RequestOptions options = RequestOptions.GetGatewayDefaultOptions(); var credentials = new ClusterCredentials(new Uri("jdbc:phoenix:10.16.0.206:/hbase-unsecure"), null, null); var client = new PhoenixClient(credentials); // In gateway mode, PQS requests will be https://<cluster dns name>.azurehdinsight.net/hbasephoenix<N>/ // Requests sent to hbasephoenix0/ will be forwarded to PQS on workernode0 options.AlternativeEndpoint = "hbasephoenix0/"; OpenConnectionResponse openConnResponse = null; StatementHandle statementHandle = null; try { //var info = new pbc::MapField<string, string>(); // Opening connection pbc::MapField <string, string> info = new pbc::MapField <string, string>(); openConnResponse = await client.OpenConnectionRequestAsync(connId, info, options); // Syncing connection ConnectionProperties connProperties = new ConnectionProperties { HasAutoCommit = true, AutoCommit = true, HasReadOnly = true, ReadOnly = false, TransactionIsolation = 0, Catalog = "", Schema = "", IsDirty = true }; await client.ConnectionSyncRequestAsync(connId, connProperties, options); var createStatementResponse = await client.CreateStatementRequestAsync(connId, options); string sql = "SELECT * FROM Customers"; ExecuteResponse executeResponse = await client.PrepareAndExecuteRequestAsync(connId, sql, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options); pbc::RepeatedField <Row> rows = executeResponse.Results[0].FirstFrame.Rows; // Loop through all of the returned rows and display the first two columns for (int i = 0; i < rows.Count; i++) { Row row = rows[i]; Console.WriteLine(row.Value[0].ScalarValue.StringValue + " " + row.Value[1].ScalarValue.StringValue); } // 100 is hard-coded on the server side as the default firstframe size // FetchRequestAsync is called to get any remaining rows Console.WriteLine(""); Console.WriteLine($"Number of rows: {rows.Count}"); // Fetch remaining rows, offset is not used, simply set to 0 // When FetchResponse.Frame.Done is true, all rows were fetched FetchResponse fetchResponse = await client.FetchRequestAsync(connId, createStatementResponse.StatementId, 0, int.MaxValue, options); Console.WriteLine($"Frame row count: {fetchResponse.Frame.Rows.Count}"); Console.WriteLine($"Fetch response is done: {fetchResponse.Frame.Done}"); Console.WriteLine(""); // Running query 2 string sql2 = "select count(*) from Customers"; ExecuteResponse countResponse = await client.PrepareAndExecuteRequestAsync(connId, sql2, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options); long count = countResponse.Results[0].FirstFrame.Rows[0].Value[0].ScalarValue.NumberValue; Console.WriteLine($"Total customer records: {count}"); Console.WriteLine(""); // Running query 3 string sql3 = "select StateProvince, count(*) as Number from Customers group by StateProvince order by Number desc"; ExecuteResponse groupByResponse = await client.PrepareAndExecuteRequestAsync(connId, sql3, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options); pbc::RepeatedField <Row> stateRows = groupByResponse.Results[0].FirstFrame.Rows; for (int i = 0; i < stateRows.Count; i++) { Row row = stateRows[i]; Console.WriteLine(row.Value[0].ScalarValue.StringValue + ": " + row.Value[1].ScalarValue.NumberValue); } } catch (Exception ex) { } finally { if (statementHandle != null) { await client.CloseStatementRequestAsync(connId, statementHandle.Id, options); statementHandle = null; } if (openConnResponse != null) { await client.CloseConnectionRequestAsync(connId, options); openConnResponse = null; } } }