| #!/usr/bin/python |
| import getopt, sys |
| import re |
| from string import Template |
| |
| def type_to_signature(itype): |
| if len(itype) > 2: |
| if itype[-2:] == '[]': |
| return "[%s" % type_to_signature(itype[:-2]) |
| if itype == "int": |
| return "I" |
| if itype == "long": |
| return "J" |
| if itype == "void": |
| return "V" |
| if itype == "boolean": |
| return "Z" |
| if itype == "byte": |
| return "B" |
| if itype == "char": |
| return "C" |
| if itype == "short": |
| return "S" |
| if itype == "float": |
| return "F" |
| if itype == "double": |
| return "D" |
| if itype == "String": |
| return "Ljava/lang/String;" |
| if itype == "Object": |
| return "Ljava/lang/Object;" |
| return "Lcx/ring/daemon/%s;" % itype |
| |
| def parse_java_file(input_stream, package, module): |
| outputs = [] |
| package_prefix = "Java_%s_%sJNI" % (package.replace(".", "_"), module) |
| for line in input_stream: |
| definition = re.match(r'.*public final static native ([^\( ]*) ([^\)]*)\(([^)]*)\).*',line) |
| if definition is not None: |
| retour = definition.group(1) |
| name = definition.group(2) |
| args = definition.group(3) |
| args_sigs = [] |
| args_frags = args.split(',') |
| for args_frag in args_frags: |
| argf = re.match(r'(\b)?([^ ]+) .*', args_frag.strip()) |
| if argf is not None: |
| args_sigs.append(type_to_signature(argf.group(2))) |
| sig = "(%s)%s" % (''.join(args_sigs), type_to_signature(retour)) |
| outputs.append("{\"%s\", \"%s\", (void*)& %s_%s}" % (name, sig, package_prefix, name.replace('_', '_1'))) |
| return outputs |
| |
| def render_to_template(defs, template_string): |
| template = Template(template_string) |
| return template.substitute(defs= ",\r\n".join(defs) ) |
| |
| |
| if __name__ == "__main__": |
| try: |
| opts, args = getopt.getopt(sys.argv[1:], "i:o:t:m:p:", ["input=", "output=", "template=", "module=", "package="]) |
| except getopt.GetoptError as err: |
| # print help information and exit: |
| print(str(err)) # will print something like "option -a not recognized" |
| sys.exit(2) |
| input_stream = None |
| output_file = None |
| template_string = None |
| package = "" |
| module = "" |
| for o, a in opts: |
| if o in ("-i", "--input"): |
| input_stream = open(a) |
| if o in ("-o", "--output"): |
| output_file = open(a, "w") |
| if o in ("-t", "--template"): |
| template_string = open(a).read() |
| if o in ("-m", "--module"): |
| module = a |
| if o in ("-p", "--package"): |
| package = a |
| |
| defs = parse_java_file(input_stream, package, module) |
| output_file.write(render_to_template(defs, template_string)) |
| output_file.close() |
| input_stream.close() |