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#!/usr/bin/env python
# **********************************************************************
#
# Copyright (c) 2003-2009 ZeroC, Inc. All rights reserved.
#
# This copy of Ice is licensed to you under the terms described in the
# ICE_LICENSE file included in this distribution.
#
# **********************************************************************
import sys, threading, Ice
Ice.loadSlice('Filesystem.ice')
import Filesystem
class DirectoryI(Filesystem.Directory):
def __init__(self, communicator, name, parent):
self._name = name
self._parent = parent
self._contents = []
# Create an identity. The root directory has the fixed identity "RootDir"
#
if self._parent:
self._id = communicator.stringToIdentity(Ice.generateUUID())
else:
self._id = communicator.stringToIdentity("RootDir")
# Slice Node::name() operation
def name(self, current=None):
return self._name
# Slice Directory::list() operation
def list(self, current=None):
return self._contents
# addChild is called by the child in order to add
# itself to the _contents member of the parent
def addChild(self, child):
self._contents.append(child)
# Add servant to ASM and Parent's _contents map.
def activate(self, a):
thisNode = Filesystem.DirectoryPrx.uncheckedCast(a.add(self, self._id))
if self._parent:
self._parent.addChild(thisNode)
class FileI(Filesystem.File):
def __init__(self, communicator, name, parent):
self._name = name
self._parent = parent
self.lines = []
assert(self._parent != None)
# Create an identity
#
self._id = communicator.stringToIdentity(Ice.generateUUID())
# Slice Node::name() operation
def name(self, current=None):
return self._name
# Slice File::read() operation
def read(self, current=None):
return self._lines
# Slice File::write() operation
def write(self, text, current=None):
self._lines = text
# Add servant to ASM and Parent's _contents map.
def activate(self, a):
thisNode = Filesystem.FilePrx.uncheckedCast(a.add(self, self._id))
self._parent.addChild(thisNode)
class Server(Ice.Application):
def run(self, args):
# Terminate cleanly on receipt of a signal
#
self.shutdownOnInterrupt()
# Create an object adapter
#
adapter = self.communicator().createObjectAdapterWithEndpoints("SimpleFileSystem", "default -p 10000")
# Create the root directory (with name "/" and no parent)
#
root = DirectoryI(self.communicator(), "/", None)
root.activate(adapter)
# Create a file called "README" in the root directory
#
file = FileI(self.communicator(), "README", root)
text = [ "This file system contains a collection of poetry." ]
try:
file.write(text)
except Filesystem.GenericError, e:
print e.reason
file.activate(adapter)
# Create a directory called "Coleridge" in the root directory
#
coleridge = DirectoryI(self.communicator(), "Coleridge", root)
coleridge.activate(adapter)
# Create a file called "Kubla_Khan" in the Coleridge directory
#
file = FileI(self.communicator(), "Kubla_Khan", coleridge)
text = [ "In Xanadu did Kubla Khan",
"A stately pleasure-dome decree:",
"Where Alph, the sacred river, ran",
"Through caverns measureless to man",
"Down to a sunless sea." ]
try:
file.write(text)
except Filesystem.GenericError, e:
print e.reason
file.activate(adapter)
# All objects are created, allow client requests now
#
adapter.activate()
# Wait until we are done
#
self.communicator().waitForShutdown()
if self.interrupted():
print self.appName() + ": terminating"
return 0
app = Server()
sys.exit(app.main(sys.argv))
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