1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/main/java/de/uapcore/sudoku/DocumentHandler.java Sat Jul 25 14:01:28 2020 +0200
1.3 @@ -0,0 +1,104 @@
1.4 +/*
1.5 + * Copyright 2013 Mike Becker. All rights reserved.
1.6 + *
1.7 + * Redistribution and use in source and binary forms, with or without
1.8 + * modification, are permitted provided that the following conditions are met:
1.9 + *
1.10 + * 1. Redistributions of source code must retain the above copyright
1.11 + * notice, this list of conditions and the following disclaimer.
1.12 + *
1.13 + * 2. Redistributions in binary form must reproduce the above copyright
1.14 + * notice, this list of conditions and the following disclaimer in the
1.15 + * documentation and/or other materials provided with the distribution.
1.16 + *
1.17 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.18 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.19 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.20 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.21 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.22 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.23 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.24 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.25 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.26 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.27 + * POSSIBILITY OF SUCH DAMAGE.
1.28 + */
1.29 +
1.30 +package de.uapcore.sudoku;
1.31 +
1.32 +import java.io.*;
1.33 +import java.util.regex.Matcher;
1.34 +import java.util.regex.Pattern;
1.35 +
1.36 +/**
1.37 + *
1.38 + * @author mike
1.39 + */
1.40 +public class DocumentHandler {
1.41 +
1.42 + private String filename;
1.43 +
1.44 + public void load(Field field) throws IOException {
1.45 + if (!isFilenameSet()) {
1.46 + throw new IOException("no filename supplied");
1.47 + }
1.48 + int row = 0;
1.49 + try (BufferedReader in = new BufferedReader(
1.50 + new InputStreamReader(new FileInputStream(filename)))) {
1.51 + Pattern pat = Pattern.compile("^\\s*(?:[1-9_] ){8}[1-9_]\\s*$");
1.52 + String line;
1.53 + while ((line = in.readLine()) != null) {
1.54 + if (line.matches("^\\s*$")) {
1.55 + continue;
1.56 + }
1.57 + Matcher m = pat.matcher(line);
1.58 + if (m.matches()) {
1.59 + String c[] = line.trim().split(" ");
1.60 + if (c.length != 9) {
1.61 + break;
1.62 + }
1.63 + for (int i = 0 ; i < 9 ; i++) {
1.64 + field.setCellValue(i, row,
1.65 + c[i].equals("_") ? 0 : Integer.valueOf(c[i]));
1.66 + }
1.67 + row++;
1.68 + } else {
1.69 + break;
1.70 + }
1.71 + }
1.72 + if (row != 9) {
1.73 + throw new IOException("Kein Sudoku-Feld enthalten!");
1.74 + }
1.75 + }
1.76 + field.setAllCellsModified(false);
1.77 + }
1.78 +
1.79 + public void save(Field field) throws IOException {
1.80 + if (!isFilenameSet()) {
1.81 + throw new IOException("no filename supplied");
1.82 + }
1.83 +
1.84 + try (BufferedWriter out = new BufferedWriter(
1.85 + new OutputStreamWriter(new FileOutputStream(filename)))) {
1.86 + for (int i = 0 ; i < 9 ; i++) {
1.87 + int[] row = field.getRow(i);
1.88 + for (int j = 0 ; j < 9 ; j++) {
1.89 + out.append(row[j] > 0 ? Character.forDigit(row[j], 10):'_');
1.90 + out.append(j == 8 ? '\n': ' ');
1.91 + }
1.92 + }
1.93 + }
1.94 + }
1.95 +
1.96 + public void setFilename(String filename) {
1.97 + this.filename = filename;
1.98 + }
1.99 +
1.100 + public void clearFilename() {
1.101 + filename = null;
1.102 + }
1.103 +
1.104 + public boolean isFilenameSet() {
1.105 + return filename != null;
1.106 + }
1.107 +}
