public static JFMGenerator getInstance(
final Class<? extends Object> clazz, final FreeMarkerGeneratorArguments arguments)
throws Exception {
// load the bean class
Class<? extends Object> beanClass;
if (arguments.getJavaClassFile() != null) {
beanClass = ClassUtils.loadClassFromFile(arguments.getJavaClassFile());
} else if (arguments.getJavaClassName() != null) {
beanClass = Class.forName(arguments.getJavaClassName());
} else {
throw new IllegalStateException("either javaClassName or " + "javaClassFile is required");
}
final JFMGenerator generator = loadGeneratorInstance(clazz);
generator.setModel(createModel(beanClass, arguments));
// setup the template reader
if (arguments.getTemplateFile() != null) {
final File template = arguments.getTemplateFile();
generator.setTemplateReader(new FileReader(template));
} else if (arguments.getTemplateResourceName() != null) {
final String resourceName = arguments.getTemplateResourceName();
final URL url = ClassLoader.getSystemResource(resourceName);
final Reader reader = new InputStreamReader(url.openStream());
generator.setTemplateReader(reader);
} else {
throw new IllegalStateException(
"either templateFile or " + "templateResourceName is required");
}
generator.afterPropertiesSet(); // initializing bean
return generator;
}
public static void generateToOutputFileArgument(
final JFMGenerator generator, final FreeMarkerGeneratorArguments arguments)
throws IOException, TemplateException {
final File output = arguments.getOutputFile();
output.getParentFile().mkdirs();
if (!output.exists() && !output.createNewFile()) {
throw new IllegalStateException("could not create output file");
}
final OutputStream outputStream = new FileOutputStream(output, false);
try {
generator.generate(outputStream);
} finally {
if (outputStream != null) {
outputStream.close();
}
if (generator.getTemplateReader() != null) {
generator.getTemplateReader().close();
}
}
logger.info(output.getAbsolutePath() + " written");
}