comparison: src/main/java/de/uapcore/sudoku/DocumentHandler.java
src/main/java/de/uapcore/sudoku/DocumentHandler.java
- changeset 9
- 576e7a2861ae
- parent 7
- 2c0a2766461c
- child 10
- 369903afbb29
equal
deleted
inserted
replaced
| 8:e70a0e3555fb | 9:576e7a2861ae |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 Mike Becker. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are met: | |
| 6 * | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 24 * POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 package de.uapcore.sudoku; | |
| 28 | |
| 29 import java.io.*; | |
| 30 import java.util.regex.Matcher; | |
| 31 import java.util.regex.Pattern; | |
| 32 | |
| 33 /** | |
| 34 * | |
| 35 * @author mike | |
| 36 */ | |
| 37 public class DocumentHandler { | |
| 38 | |
| 39 private String filename; | |
| 40 | |
| 41 public void load(Field field) throws IOException { | |
| 42 if (!isFilenameSet()) { | |
| 43 throw new IOException("no filename supplied"); | |
| 44 } | |
| 45 int row = 0; | |
| 46 try (BufferedReader in = new BufferedReader( | |
| 47 new InputStreamReader(new FileInputStream(filename)))) { | |
| 48 Pattern pat = Pattern.compile("^\\s*(?:[1-9_] ){8}[1-9_]\\s*$"); | |
| 49 String line; | |
| 50 while ((line = in.readLine()) != null) { | |
| 51 if (line.matches("^\\s*$")) { | |
| 52 continue; | |
| 53 } | |
| 54 Matcher m = pat.matcher(line); | |
| 55 if (m.matches()) { | |
| 56 String c[] = line.trim().split(" "); | |
| 57 if (c.length != 9) { | |
| 58 break; | |
| 59 } | |
| 60 for (int i = 0 ; i < 9 ; i++) { | |
| 61 field.setCellValue(i, row, | |
| 62 c[i].equals("_") ? 0 : Integer.valueOf(c[i])); | |
| 63 } | |
| 64 row++; | |
| 65 } else { | |
| 66 break; | |
| 67 } | |
| 68 } | |
| 69 if (row != 9) { | |
| 70 throw new IOException("Kein Sudoku-Feld enthalten!"); | |
| 71 } | |
| 72 } | |
| 73 field.setAllCellsModified(false); | |
| 74 } | |
| 75 | |
| 76 public void save(Field field) throws IOException { | |
| 77 if (!isFilenameSet()) { | |
| 78 throw new IOException("no filename supplied"); | |
| 79 } | |
| 80 | |
| 81 try (BufferedWriter out = new BufferedWriter( | |
| 82 new OutputStreamWriter(new FileOutputStream(filename)))) { | |
| 83 for (int i = 0 ; i < 9 ; i++) { | |
| 84 int[] row = field.getRow(i); | |
| 85 for (int j = 0 ; j < 9 ; j++) { | |
| 86 out.append(row[j] > 0 ? Character.forDigit(row[j], 10):'_'); | |
| 87 out.append(j == 8 ? '\n': ' '); | |
| 88 } | |
| 89 } | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 public void setFilename(String filename) { | |
| 94 this.filename = filename; | |
| 95 } | |
| 96 | |
| 97 public void clearFilename() { | |
| 98 filename = null; | |
| 99 } | |
| 100 | |
| 101 public boolean isFilenameSet() { | |
| 102 return filename != null; | |
| 103 } | |
| 104 } |
