Subversion Repositories svn.mios

/*
 * @(#)SysexFile.java   beta8   2006/04/23
 *
 * Copyright (C) 2008    Adam King
 *
 * This application 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 2 of the License, or
 * (at your option) any later version.
 *
 * This application 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 application; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.midibox.midi;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

public class SysexFile {
    private byte[] data;

    public boolean read(String sFilename) {
        try {

            File file = new File(sFilename);

            InputStream is = new FileInputStream(file);

            // Get the size of the file
            long length = file.length();

            // You cannot create an array using a long type.
            // It needs to be an int type.
            // Before converting to an int type, check
            // to ensure that file is not larger than Integer.MAX_VALUE.
            if (length > Integer.MAX_VALUE) {
                // File is too large
            }

            // Create the byte array to hold the data
            data = new byte[(int) length];

            // Read in the bytes
            int offset = 0;
            int numRead = 0;
            while (offset < data.length
                    && (numRead = is.read(data, offset, data.length - offset)) >= 0) {
                offset += numRead;
            }

            // Ensure all the bytes have been read in
            if (offset < data.length) {
                throw new IOException("Could not completely read file "
                        + file.getName());
            }

            // Close the input stream and return bytes
            is.close();
        } catch (Exception e) {
            System.out.println(e.toString());
            return false;
        }
        return true;
    }

    public byte[] getData() {
        return data;
    }
}