/**
* Copyright 2010-2013 Atilika Inc. and contributors (see CONTRIBUTORS.md)
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. A copy of the
* License is distributed with this work in the LICENSE.md file. You may
* also obtain a copy of the License from
*
* 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 com.atilika.kuromoji.util;
import com.atilika.kuromoji.dict.ConnectionCosts;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
public class ConnectionCostsBuilder {
public static ConnectionCosts build(String filename) throws IOException {
FileInputStream inputStream = new FileInputStream(filename);
InputStreamReader streamReader = new InputStreamReader(inputStream);
LineNumberReader lineReader = new LineNumberReader(streamReader);
String line = lineReader.readLine();
String[] dimensions = line.split("\\s+");
assert dimensions.length == 3;
int forwardSize = Integer.parseInt(dimensions[0]);
int backwardSize = Integer.parseInt(dimensions[1]);
assert forwardSize > 0 && backwardSize > 0;
ConnectionCosts costs = new ConnectionCosts(forwardSize, backwardSize);
while ((line = lineReader.readLine()) != null) {
String[] fields = line.split("\\s+");
assert fields.length == 3;
short forwardId = Short.parseShort(fields[0]);
short backwardId = Short.parseShort(fields[1]);
short cost = Short.parseShort(fields[2]);
costs.add(forwardId, backwardId, cost);
}
return costs;
}
}