horaedb/utils.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package horaedb

import (
	"fmt"
)

func getTablesFromPoints(points []Point) []string {
	dict := make(map[string]byte)
	tables := make([]string, 0, len(points))
	for _, point := range points {
		if _, ok := dict[point.Table]; !ok {
			dict[point.Table] = 0
			tables = append(tables, point.Table)
		}
	}
	return tables
}

func splitPointsByRoute(points []Point, routes map[string]route) (map[string][]Point, error) {
	pointsByRoute := make(map[string][]Point, len(routes))
	for _, point := range points {
		route, ok := routes[point.Table]
		if !ok {
			return nil, fmt.Errorf("route for table %s not found", point.Table)
		}
		if rows, ok := pointsByRoute[route.Endpoint]; ok {
			pointsByRoute[route.Endpoint] = append(rows, point)
		} else {
			pointsByRoute[route.Endpoint] = []Point{point}
		}
	}

	return pointsByRoute, nil
}

func combineWriteResponse(r1 WriteResponse, r2 WriteResponse) WriteResponse {
	r1.Success += r2.Success
	r1.Failed += r2.Failed
	return r1
}