f4c4803ce0
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1237740 13f79535-47bb-0310-9956-ffa450edef68
80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# stores collection implementation
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from util import *
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# Convert a particular store tag to a store id
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def storeid(tag):
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return ("'store", "'" + tag, "'store.apps")
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# Get a store from the cache
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def getstore(id, cache):
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store = cache.get(id)
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if isNil(store) or store is None:
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return ()
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return store
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# Put an app into a store
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def put(key, app, cache):
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def putapp(app, store):
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if isNil(store):
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return app
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if cadr(caddr(car(app))) == cadr(caddr(car(store))):
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return cons(car(app), cdr(store))
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return cons(car(store), putapp(app, cdr(store)))
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tag = car(key)
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store = putapp(app, getstore(storeid(tag), cache))
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cache.put(storeid(tag), store)
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return True
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# Get apps from a store
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def get(key, cache):
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tag = car(key)
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id = cdr(key)
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def findapp(id, store):
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if isNil(store):
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return None
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if car(id) == cadr(caddr(car(store))):
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return (car(store),)
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return findapp(id, cdr(store))
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if isNil(id):
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return ((("'feed", ("'title", "App Store"), ("'id", tag)) + getstore(storeid(tag), cache)),)
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return findapp(id, getstore(storeid(tag), cache))
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# Delete apps from a store
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def delete(key, cache):
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tag = car(key)
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id = cdr(key)
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if isNil(id):
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return cache.delete(storeid(tag))
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def deleteapp(id, store):
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if isNil(store):
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return ()
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if car(id) == cadr(caddr(car(store))):
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return cdr(store)
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return cons(car(store), deleteapp(id, cdr(store)))
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store = deleteapp(id, getstore(storeid(tag), cache))
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cache.put(storeid(tag), store)
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return True
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