src/de/uapcore/sudoku/DocumentHandler.java

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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.BufferedWriter;
30 import java.io.FileOutputStream;
31 import java.io.IOException;
32 import java.io.OutputStreamWriter;
33
34 /**
35 *
36 * @author mike
37 */
38 public class DocumentHandler {
39
40 private String filename;
41
42 public void load(Field field) throws IOException {
43 if (!isFilenameSet()) {
44 throw new IOException("no filename supplied");
45 }
46 // TODO: implement
47 }
48
49 public void save(Field field) throws IOException {
50 if (!isFilenameSet()) {
51 throw new IOException("no filename supplied");
52 }
53
54 try (BufferedWriter out = new BufferedWriter(
55 new OutputStreamWriter(new FileOutputStream(filename)))) {
56 for (int i = 0 ; i < 9 ; i++) {
57 int[] row = field.getRow(i);
58 for (int j = 0 ; j < 9 ; j++) {
59 out.append(row[j] > 0 ? Character.forDigit(row[j], 10):'_');
60 out.append(j == 8 ? '\n': ' ');
61 }
62 }
63 }
64 }
65
66 public void setFilename(String filename) {
67 this.filename = filename;
68 }
69
70 public void clearFilename() {
71 filename = null;
72 }
73
74 public boolean isFilenameSet() {
75 return filename != null;
76 }
77 }

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