Android RandomAccessFile Write writeString(RandomAccessFile file, int size, String text)

Description

write String

License

Open Source License

Declaration

public static void writeString(RandomAccessFile file, int size,
            String text) throws IOException 

Method Source Code

//package com.java2s;
/*/*from  ww w.j av  a 2 s.c  o m*/
 * Java build tools related to the Android operating system.
 * Copyright (C) 2011 DivDE <divde@free.fr>
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.IOException;
import java.io.RandomAccessFile;

public class Main {
    public static void writeString(RandomAccessFile file, int size,
            String text) throws IOException {
        int textLength = text.length();
        int remainingSize = size - textLength;
        if (remainingSize < 0) {
            throw new IllegalArgumentException(String.format(
                    "String is too long: '%s' is longer than %d", text,
                    size));
        }
        file.writeBytes(text);
        fillPadding(file, remainingSize);
    }

    public static void fillPadding(RandomAccessFile file, int size)
            throws IOException {
        if (size < 0) {
            throw new IOException(String.format("Negative padding: %d",
                    size));
        }
        for (int i = 0; i < size; i++) {
            file.writeByte(0);
        }
    }
}

Related

1. copyBytes(RandomAccessFile srcFile, RandomAccessFile dstFile, int length, MessageDigest messageDigest)