universe@5: /*
universe@5:  * Copyright 2013 Mike Becker. All rights reserved.
universe@5:  * 
universe@5:  * Redistribution and use in source and binary forms, with or without
universe@5:  * modification, are permitted provided that the following conditions are met:
universe@5:  * 
universe@5:  * 1. Redistributions of source code must retain the above copyright
universe@5:  *    notice, this list of conditions and the following disclaimer.
universe@5:  * 
universe@5:  * 2. Redistributions in binary form must reproduce the above copyright
universe@5:  *    notice, this list of conditions and the following disclaimer in the
universe@5:  *    documentation and/or other materials provided with the distribution.
universe@5:  * 
universe@5:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@5:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@5:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@5:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@5:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@5:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@5:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@5:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@5:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@5:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@5:  * POSSIBILITY OF SUCH DAMAGE.
universe@5:  */
universe@5: 
universe@5: package de.uapcore.sudoku;
universe@5: 
universe@5: import java.io.BufferedWriter;
universe@5: import java.io.FileOutputStream;
universe@5: import java.io.IOException;
universe@5: import java.io.OutputStreamWriter;
universe@5: 
universe@5: /**
universe@5:  *
universe@5:  * @author mike
universe@5:  */
universe@5: public class DocumentHandler {
universe@5:     
universe@5:     private String filename;
universe@5:     
universe@5:     public void load(Field field) throws IOException {
universe@5:         if (!isFilenameSet()) {
universe@5:             throw new IOException("no filename supplied");
universe@5:         }
universe@5:         // TODO: implement
universe@5:     }
universe@5:     
universe@5:     public void save(Field field) throws IOException {
universe@5:         if (!isFilenameSet()) {
universe@5:             throw new IOException("no filename supplied");
universe@5:         }
universe@5:         
universe@5:         try (BufferedWriter out = new BufferedWriter(
universe@5:                 new OutputStreamWriter(new FileOutputStream(filename)))) {
universe@5:             for (int i = 0 ; i < 9 ; i++) {
universe@5:                 int[] row = field.getRow(i);
universe@5:                 for (int j = 0 ; j < 9 ; j++) {
universe@5:                     out.append(row[j] > 0 ? Character.forDigit(row[j], 10):'_');
universe@5:                     out.append(j == 8 ? '\n': ' ');
universe@5:                 }
universe@5:             }
universe@5:         }
universe@5:     }
universe@5:     
universe@5:     public void setFilename(String filename) {
universe@5:         this.filename = filename;
universe@5:     }
universe@5:     
universe@5:     public void clearFilename() {
universe@5:         filename = null;
universe@5:     }
universe@5:     
universe@5:     public boolean isFilenameSet() {
universe@5:         return filename != null;
universe@5:     }
universe@5: }