1 files changed, 120 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/wrapped/modules/implementation-python-runtime/src/main/resources/atomutil.py b/sandbox/sebastien/java/wrapped/modules/implementation-python-runtime/src/main/resources/atomutil.py
new file mode 100644
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+++ b/sandbox/sebastien/java/wrapped/modules/implementation-python-runtime/src/main/resources/atomutil.py
@@ -0,0 +1,120 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#  
+#    http://www.apache.org/licenses/LICENSE-2.0
+#    
+#  Unless required by applicable law or agreed to in writing,
+#  software distributed under the License is distributed on an
+#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#  KIND, either express or implied.  See the License for the
+#  specific language governing permissions and limitations
+#  under the License.
+
+# ATOM data conversion functions
+
+from util import *
+from elemutil import *
+from xmlutil import *
+
+# Convert a list of elements to a list of values representing an ATOM entry
+def entryElementsToValues(e):
+    lt = filter(selector((element, "'title")), e)
+    t = "" if isNil(lt) else elementValue(car(lt))
+    li = filter(selector((element, "'id")), e)
+    i = "" if isNil(li) else elementValue(car(li))
+    lc = filter(selector((element, "'content")), e)
+    return (t, i, elementValue(car(lc)))
+
+# Convert a list of elements to a list of values representing ATOM entries
+def entriesElementsToValues(e):
+    if isNil(e):
+        return e
+    return cons(entryElementsToValues(car(e)), entriesElementsToValues(cdr(e)))
+
+# Convert a list of strings to a list of values representing an ATOM entry
+def readATOMEntry(l):
+    e = readXML(l)
+    if isNil(e):
+        return ()
+    return entryElementsToValues(car(e))
+
+# Convert a list of values representy an ATOM entry to a value
+def entryValue(e):
+    v = elementsToValues((caddr(e),))
+    return cons(car(e), (cadr(e), cdr(car(v))))
+
+# Return true if a list of strings represents an ATOM feed
+def isATOMFeed(l):
+    if isNil(l):
+        return False
+    if car(l)[0:5] != "<?xml":
+        return False
+    return contains(car(l), "<feed")
+
+# Convert a list of strings to a list of values representing an ATOM feed
+def readATOMFeed(l):
+    f = readXML(l)
+    if isNil(f):
+        return ()
+    t = filter(selector((element, "'title")), car(f))
+    i = filter(selector((element, "'id")), car(f))
+    e = filter(selector((element, "'entry")), car(f))
+    if isNil(e):
+        return (elementValue(car(t)), elementValue(car(i)))
+    return cons(elementValue(car(t)), cons(elementValue(car(i)), entriesElementsToValues(e)))
+
+# Convert an ATOM feed containing elements to an ATOM feed containing values
+def feedValuesLoop(e):
+    if (isNil(e)):
+        return e
+    return cons(entryValue(car(e)), feedValuesLoop(cdr(e)))
+
+def feedValues(e):
+    return cons(car(e), cons(cadr(e), feedValuesLoop(cddr(e))))
+
+# Convert a list of values representy an ATOM entry to a list of elements
+def entryElement(l):
+    return (element, "'entry", (attribute, "'xmlns", "http://www.w3.org/2005/Atom"),
+            (element, "'title", (attribute, "'type", "text"), car(l)),
+            (element, "'id", cadr(l)),
+            (element, "'content", (attribute, "'type", ("application/xml" if isList(caddr(l)) else "text")), caddr(l)),
+            (element, "'link", (attribute, "'href", cadr(l))))
+
+# Convert a list of values representing ATOM entries to a list of elements
+def entriesElements(l):
+    if isNil(l):
+        return l
+    return cons(entryElement(car(l)), entriesElements(cdr(l)))
+
+# Convert a list of values representing an ATOM entry to an ATOM entry
+def writeATOMEntry(l):
+    return writeXML((entryElement(l),), True)
+
+# Convert a list of values representing an ATOM feed to an ATOM feed
+def writeATOMFeed(l):
+    f = (element, "'feed", (attribute, "'xmlns", "http://www.w3.org/2005/Atom"),
+            (element, "'title", (attribute, "'type", "text"), car(l)),
+            (element, "'id", cadr(l)))
+    if isNil(cddr(l)):
+        return writeXML((f,), True)
+    fe = append(f, entriesElements(cddr(l)))
+    return writeXML((fe,), True)
+
+# Convert an ATOM entry containing a value to an ATOM entry containing an item element
+def entryValuesToElements(v):
+    return cons(car(v), cons(cadr(v), valuesToElements((cons("'item", caddr(v)),))))
+
+# Convert an ATOM feed containing values to an ATOM feed containing elements
+def feedValuesToElementsLoop(v):
+    if isNil(v):
+        return v
+    return cons(entryValuesToElements(car(v)), feedValuesToElementsLoop(cdr(v)))
+
+def feedValuesToElements(v):
+    return cons(car(v), cons(cadr(v), feedValuesToElementsLoop(cddr(v))))
+