| /* |
| * 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 org.apache.lucene.analysis.ko.util; |
| |
| import java.io.IOException; |
| import java.io.LineNumberReader; |
| import java.io.Reader; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| |
| class ConnectionCostsBuilder { |
| |
| private ConnectionCostsBuilder() {} |
| |
| public static ConnectionCostsWriter build(Path path) throws IOException { |
| try (Reader reader = Files.newBufferedReader(path, StandardCharsets.US_ASCII); |
| LineNumberReader lineReader = new LineNumberReader(reader)) { |
| |
| String line = lineReader.readLine(); |
| String[] dimensions = line.split("\\s+"); |
| |
| assert dimensions.length == 2; |
| |
| int forwardSize = Integer.parseInt(dimensions[0]); |
| int backwardSize = Integer.parseInt(dimensions[1]); |
| |
| assert forwardSize > 0 && backwardSize > 0; |
| |
| ConnectionCostsWriter costs = new ConnectionCostsWriter(forwardSize, backwardSize); |
| |
| while ((line = lineReader.readLine()) != null) { |
| String[] fields = line.split("\\s+"); |
| |
| assert fields.length == 3; |
| |
| int forwardId = Integer.parseInt(fields[0]); |
| int backwardId = Integer.parseInt(fields[1]); |
| int cost = Integer.parseInt(fields[2]); |
| |
| costs.add(forwardId, backwardId, cost); |
| } |
| return costs; |
| } |
| } |
| } |