Sudoku: src/de/uapcore/sudoku/DocumentHandler.java@8ddf4af937d7

     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  */

    27 package de.uapcore.sudoku;

    29 import java.io.BufferedWriter;

    30 import java.io.FileOutputStream;

    31 import java.io.IOException;

    32 import java.io.OutputStreamWriter;

    34 /**

    35  *

    36  * @author mike

    37  */

    38 public class DocumentHandler {

    40     private String filename;

    42     public void load(Field field) throws IOException {

    43         if (!isFilenameSet()) {

    44             throw new IOException("no filename supplied");

    45         }

    46         // TODO: implement

    47     }

    49     public void save(Field field) throws IOException {

    50         if (!isFilenameSet()) {

    51             throw new IOException("no filename supplied");

    52         }

    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     }

    66     public void setFilename(String filename) {

    67         this.filename = filename;

    68     }

    70     public void clearFilename() {

    71         filename = null;

    72     }

    74     public boolean isFilenameSet() {

    75         return filename != null;

    76     }

    77 }

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