private Descriptor getDescriptor(String descriptorFileInClassPath) {
try {
InputStream fin =
this.getClass().getClassLoader().getResourceAsStream(descriptorFileInClassPath);
FileDescriptorSet set = FileDescriptorSet.parseFrom(fin);
FileDescriptor file = FileDescriptor.buildFrom(set.getFile(0), new FileDescriptor[] {});
return file.getMessageTypes().get(0);
} catch (Exception e) {
throw Throwables.propagate(e);
}
}
