int ObRootServerRpcStub::scan(const ObServer & server, const int64_t timeout, const ObScanParam & param, ObScanner & result) { ObDataBuffer data_buff; int ret = get_frame_buffer(data_buff); if (ret != OB_SUCCESS) { TBSYS_LOG(ERROR, "check get rpc buffer failed:ret[%d]", ret); } else { // step 1. serialize ObGetParam to the data_buff ret = param.serialize(data_buff.get_data(), data_buff.get_capacity(), data_buff.get_position()); if (OB_SUCCESS != ret) { TBSYS_LOG(ERROR, "serialize get param failed:ret[%d]", ret); } } // step 2. send request for get data if (OB_SUCCESS == ret) { ret = rpc_frame_->send_request(server, OB_SCAN_REQUEST, DEFAULT_VERSION, timeout, data_buff); if (ret != OB_SUCCESS) { TBSYS_LOG(WARN, "get data failed from server:ret[%d]", ret); } } // step 3. deserialize the response result int64_t pos = 0; if (OB_SUCCESS == ret) { ObResultCode result_code; ret = result_code.deserialize(data_buff.get_data(), data_buff.get_position(), pos); if (OB_SUCCESS != ret) { TBSYS_LOG(ERROR, "deserialize result failed:pos[%ld], ret[%d]", pos, ret); } else if ((ret = result_code.result_code_) != OB_SUCCESS) { TBSYS_LOG(ERROR,"scan failed,ret[%d]",ret); } } // step 4. deserialize the scanner if (OB_SUCCESS == ret) { result.clear(); ret = result.deserialize(data_buff.get_data(), data_buff.get_position(), pos); if (OB_SUCCESS != ret) { TBSYS_LOG(ERROR, "deserialize scanner from buff failed:pos[%ld], ret[%d]", pos, ret); } } return ret; }
TEST(TestObScanner, get_row) { ObScanner scanner; const int table_num = 10; const int row_num = 20; const int column_num = 10; buffer table_name[table_num]; buffer row_key[row_num]; buffer column_name[column_num]; for (int i = 0; i < table_num; i++) { table_name[i].assigne("T").appende(i); } for (int i = 0; i < row_num; i++) { row_key[i].assigne("R").appende(i); } for (int i = 0; i < column_num; i++) { column_name[i].assigne("C").appende(i); } for (int i = 0; i < table_num; i++) { for (int j = 0; j < row_num; j++) { for (int k = 0; k < column_num; k++) { ObCellInfo cell; cell.table_name_ = table_name[i].get_obstring(); cell.row_key_ = row_key[j].get_obstring(); cell.column_name_ = column_name[k].get_obstring(); cell.value_.set_int(1); scanner.add_cell(cell); } } } ObScanner::RowIterator it = scanner.row_begin(); ASSERT_EQ(it == scanner.row_begin(), true); for (int i = 0; i < table_num; i++) { for (int j = 0; j < row_num; j++) { ObCellInfo *row; int64_t num = 0; ASSERT_EQ(OB_SUCCESS, scanner.next_row()); ASSERT_EQ(OB_SUCCESS, scanner.get_row(&row, &num)); ASSERT_EQ(column_num, num); } } ASSERT_EQ(OB_ITER_END, scanner.next_row()); buffer buf(1 << 21); scanner.serialize(buf.ptre(), buf.capacity(), buf.length()); printf("%ld\n", buf.length()); ObScanner dscanner; int64_t pos = 0; dscanner.deserialize(buf.ptre(), buf.length(), pos); for (int i = 0; i < table_num; i++) { for (int j = 0; j < row_num; j++) { ObCellInfo *row; int64_t num = 0; ASSERT_EQ(OB_SUCCESS, dscanner.next_row()); ASSERT_EQ(OB_SUCCESS, dscanner.get_row(&row, &num)); ASSERT_EQ(column_num, num); } } ASSERT_EQ(OB_ITER_END, dscanner.next_row()); scanner.clear(); scanner.set_mem_size_limit(256); int j = 0, k = 0; int err = OB_SUCCESS; for (; j < row_num; j++) { for (k = 0; k < column_num; k++) { ObCellInfo cell; cell.table_name_ = table_name[0].get_obstring(); cell.row_key_ = row_key[j].get_obstring(); cell.column_name_ = column_name[k].get_obstring(); cell.value_.set_int(1); if (OB_SUCCESS != (err = scanner.add_cell(cell))) { break; } } if (OB_SUCCESS != err) { break; } } if (OB_SUCCESS != err) { scanner.rollback(); } for (int i = 0; i < j; i++) { ObCellInfo *row; int64_t num = 0; ASSERT_EQ(OB_SUCCESS, scanner.next_row()); ASSERT_EQ(OB_SUCCESS, scanner.get_row(&row, &num)); ASSERT_EQ(column_num, num); } ASSERT_EQ(OB_ITER_END, scanner.next_row()); buf.length() = 0; scanner.serialize(buf.ptre(), buf.capacity(), buf.length()); printf("%ld\n", buf.length()); dscanner.reset(); pos = 0; dscanner.deserialize(buf.ptre(), buf.length(), pos); printf("row_num=%ld\n", dscanner.get_row_num()); for (int i = 0; i < j; i++) { ObCellInfo *row; int64_t num = 0; ASSERT_EQ(OB_SUCCESS, dscanner.next_row()); ASSERT_EQ(OB_SUCCESS, dscanner.get_row(&row, &num)); ASSERT_EQ(column_num, num); } ASSERT_EQ(OB_ITER_END, dscanner.next_row()); }
TEST(TestObScanner, row_num) { ObScanner scanner; const int table_num = 3; const int row_num = 20; const int column_num = 5; buffer table_name[table_num]; buffer row_key[row_num]; buffer column_name[column_num]; for (int i = 0; i < table_num; i++) { table_name[i].assigne("T").appende(i); } for (int i = 0; i < row_num; i++) { row_key[i].assigne("R").appende(i); } for (int i = 0; i < column_num; i++) { column_name[i].assigne("C").appende(i); } for (int i = 0; i < table_num; i++) { for (int j = 0; j < row_num; j++) { for (int k = 0; k < column_num; k++) { ObCellInfo cell; cell.table_name_ = table_name[i].get_obstring(); cell.row_key_ = row_key[j].get_obstring(); cell.column_name_ = column_name[k].get_obstring(); cell.value_.set_int(1); scanner.add_cell(cell); } } } ASSERT_EQ(scanner.get_row_num(), table_num * row_num); ASSERT_EQ(scanner.get_cell_num(), table_num * row_num * column_num); scanner.set_whole_result_row_num(1000); buffer buf(1 << 21); scanner.serialize(buf.ptre(), buf.capacity(), buf.length()); printf("%ld\n", buf.length()); ObScanner dscanner; int64_t pos = 0; dscanner.deserialize(buf.ptre(), buf.length(), pos); EXPECT_EQ(dscanner.get_row_num(), table_num * row_num); EXPECT_EQ(dscanner.get_cell_num(), table_num * row_num * column_num); EXPECT_EQ(dscanner.get_whole_result_row_num(), 1000); scanner.clear(); scanner.set_mem_size_limit(256); int j = 0, k = 0; int err = OB_SUCCESS; for (; j < row_num; j++) { k = 0; for (; k < column_num; k++) { ObCellInfo cell; cell.table_name_ = table_name[0].get_obstring(); cell.row_key_ = row_key[j].get_obstring(); cell.column_name_ = column_name[k].get_obstring(); cell.value_.set_int(1); if (OB_SUCCESS != (err = scanner.add_cell(cell))) { break; } } if (OB_SUCCESS != err) { break; } } if (OB_SUCCESS != err) { scanner.rollback(); } EXPECT_EQ(scanner.get_row_num(), j); EXPECT_EQ(scanner.get_cell_num(), j * column_num); buf.length() = 0; scanner.serialize(buf.ptre(), buf.capacity(), buf.length()); printf("%ld\n", buf.length()); dscanner.reset(); pos = 0; dscanner.deserialize(buf.ptre(), buf.length(), pos); EXPECT_EQ(dscanner.get_row_num(), j); EXPECT_EQ(dscanner.get_cell_num(), j * column_num); }