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Viewing changes to examples/shoppingcart/shopserver.py

  • Committer: Bazaar Package Importer
  • Author(s): Carl Chenet, Carl Chenet, Jakub Wilk
  • Date: 2010-09-14 01:04:28 UTC
  • Revision ID: james.westby@ubuntu.com-20100914010428-02r7p1rzr7jvw94z
Tags: 1:3.9.1-2
http://bugs.debian.org/589172
http://bugs.debian.org/589053
[Carl Chenet]
* revert to 3.9.1-1 package because of the development status 
  of the 4.1 package is unsuitable for stable use
  DPMT svn #8557 revision (Closes: #589172) 
* added debian/source
* added debian/source/format
* package is now 3.0 (quilt) source format
* debian/control
  - Bump Standards-Version to 3.9.1

[Jakub Wilk]
* Add ‘XS-Python-Version: >= 2.5’ to prevent bytecompilation with python2.4
  (closes: #589053).

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examples/shoppingcart/shopserver.py
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import time
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import Pyro
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from shoppingcart import ShoppingCart
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class Shop(object):
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    inventory= {
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        "paper"     : 1.25,
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        "bread"     : 1.50,
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        "meat"      : 5.99,
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        "milk"      : 0.80,
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        "fruit"     : 2.65,
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        "chocolate" : 3.99,
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        "pasta"     : 0.50,
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        "sauce"     : 1.20,
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        "vegetables": 1.40,
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        "cookies"   : 1.99,
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        "pizza"     : 3.60,
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        "shampoo"   : 2.22,
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        "whiskey"   : 24.99
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        }
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    customersInStore={}
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    def enter(self, name):
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        print "Customer %s enters the store." % name
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        print "Customer takes a shopping cart."
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        # create a cart and return it as a pyro object to the client
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        cart=ShoppingCart()
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        self.customersInStore[name]=cart
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        return self.__proxyfy(cart)
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    def customers(self):
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        return self.customersInStore.keys()
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    def goods(self):
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        return self.inventory
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    def payByName(self, name):
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        print "Customer %s goes to the counter to pay." % name
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        cart=self.customersInStore[name]
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        return self.payCart(cart, name)
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    def payCart(self,cart,name=None):
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        receipt=[]
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        if name:
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            receipt.append("Receipt for %s." % name)
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        receipt.append("Receipt Date: "+time.asctime())
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        total=0.0
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        for item in cart.getContents():
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            price=self.inventory[item]
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            total+=price
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            receipt.append("%13s  %.2f" % (item,price))
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        receipt.append("")
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        receipt.append("%13s  %.2f" % ("total:",total))
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        cart.empty()
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        return "\n".join(receipt)
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    def leave(self, name):
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        print "Customer %s leaves." % name
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        cart=self.customersInStore[name]
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        print "  their shopping cart contains:",cart.getContents()
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        if cart.getContents():
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            print "  it is not empty, they are trying to shoplift!"
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            raise Exception("attempt to steal a full cart prevented")
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        # delete the cart and unregister it with pyro
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        del self.customersInStore[name]
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        self.__unproxyfy(cart)
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    # utility methods:
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    def __proxyfy(self, object):
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        """register the object with the daemon and return a proxy"""
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        uri=self._pyroDaemon.register(object)
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        return Pyro.Proxy(uri)
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    def __unproxyfy(self, object):
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        """unregister the object with the daemon"""
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        self._pyroDaemon.unregister(object)
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######## main program
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daemon=Pyro.Daemon()
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shop=Shop()
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uri=daemon.register(shop)
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ns=Pyro.locateNS()
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ns.remove("example.shop")
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ns.register("example.shop", uri)
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print "Shop Server is ready."
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daemon.requestLoop()