private void convert(File source, NavigationFormat format, File target) throws IOException {
NavigationFileParser parser = new NavigationFileParser();
if (!parser.read(source)) {
log.severe("Could not read source '" + source.getAbsolutePath() + "'");
logFormatNames(NavigationFormats.getReadFormatsSortedByName());
System.exit(20);
}
if (format.isSupportsMultipleRoutes()) {
parser.write(parser.getAllRoutes(), (MultipleRoutesFormat) format, target);
} else {
int fileCount =
NavigationFileParser.getNumberOfFilesToWriteFor(parser.getTheRoute(), format, false);
File[] targets =
Files.createTargetFiles(
target, fileCount, format.getExtension(), format.getMaximumFileNameLength());
for (File t : targets) {
if (t.exists()) {
log.severe("Target '" + t.getAbsolutePath() + "' already exists; stopping.");
System.exit(13);
}
}
parser.write(parser.getTheRoute(), format, false, false, targets);
}
}
private NavigationFormat determineFormat(
List<BaseRoute> routes, NavigationFormat preferredFormat) {
NavigationFormat result = preferredFormat;
for (BaseRoute route : routes) {
// more than one route: the same result
if (result.equals(route.getFormat())) continue;
// result is capable of storing multiple routes
if (result.isSupportsMultipleRoutes()) continue;
// result from GPSBabel-based format which allows only one route but is represented by GPX 1.0
if (result instanceof BabelFormat) continue;
// default for multiple routes is GPX 1.1
result = new Gpx11Format();
}
return result;
}