handler for URL:sum://

SumURLHandler.py

#!/usr/bin/env jython
# -*- coding: utf-8 -*-
# Copyright : (c) SAEKI Yoshiyasu
# License   : MIT-style license
#             <http://www.opensource.org/licenses/mit-license.php>
# last updated: 2012/04/01


from java.lang import String
from java.net import URL
from java.net import URLConnection
from java.net import URLStreamHandler
from java.net import URLStreamHandlerFactory
from java.io import ByteArrayInputStream
from java.io import InputStreamReader


class SumConnection(URLConnection):
    def __init__(self, url):
        self.__parent = super(SumConnection, self)
        self.__parent.__init__(url)

    def connect(self):
        pass

    def getInputStream(self):
        return ByteArrayInputStream(
                String(String.valueOf(
                    sum(map(int, self.__parent.getURL().getHost().split(",")))))
                .getBytes())

    def getContentType(self):
        return "text/plain"


class SumStreamHandler(URLStreamHandler):
    def openConnection(self, url):
        return SumConnection(url)


class SumStreamFactory(URLStreamHandlerFactory):
    def createURLStreamHandler(self, protocol):
        if protocol == "sum":
            return SumStreamHandler()
        else:
            return None

URL.setURLStreamHandlerFactory(SumStreamFactory())


if __name__ == "__main__":
    u = URL("sum://11,22,33,44")
    result = ""
    isr = InputStreamReader(u.getContent())
    while isr.ready():
        result += chr(isr.read())
    print result