/**
* Saves the MIDI data from a pattern into a file.
*
* @param pattern the pattern to save
* @param file the File to save the pattern to. Should include file extension, such as .mid
*/
public void saveMidi(Pattern pattern, File file) throws IOException {
Sequence sequence = getSequence(pattern);
int[] writers = MidiSystem.getMidiFileTypes(sequence);
if (writers.length == 0) return;
MidiSystem.write(sequence, writers[0], file);
}
/**
* Exports to a file.
*
* @param outputFileName The output file name
* @throws InvalidFileFormatException If the file name doesn't end in .mid or .midi
*/
public void exportToFile(String outputFileName) throws InvalidFileFormatException {
// Check for a valid file format.
if (!outputFileName.endsWith(".mid") && !outputFileName.endsWith(".midi")) {
String msg = "File names must end in .mid or .midi";
throw new InvalidFileFormatException(msg);
}
// Find a supported file type, and export the file.
int[] types = MidiSystem.getMidiFileTypes(sequence);
try {
File outputFile = new File(outputFileName);
MidiSystem.write(sequence, types[0], outputFile);
} catch (IOException ex) {
ex.printStackTrace();
System.exit(1);
}
}
public boolean saveMidiFile(File file) {
try {
int[] fileTypes = MidiSystem.getMidiFileTypes(sequence);
if (fileTypes.length == 0) {
System.out.println("Can't save sequence");
return false;
} else {
if (MidiSystem.write(sequence, fileTypes[0], file) == -1) {
throw new IOException("Problems writing to file");
}
return true;
}
} catch (SecurityException ex) {
ex.printStackTrace();
return false;
} catch (Exception ex) {
ex.printStackTrace();
return false;
}
}