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<title>[13032] CalendarServer/branches/users/sagen/move2who-4/txdav/dps/json.py</title>
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<dt>Revision</dt> <dd><a href="http://trac.calendarserver.org//changeset/13032">13032</a></dd>
<dt>Author</dt> <dd>wsanchez@apple.com</dd>
<dt>Date</dt> <dd>2014-03-28 13:57:18 -0700 (Fri, 28 Mar 2014)</dd>
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<h3>Log Message</h3>
<pre>Implement expressionAsJSONText()</pre>
<h3>Added Paths</h3>
<ul>
<li><a href="#CalendarServerbranchesuserssagenmove2who4txdavdpsjsonpy">CalendarServer/branches/users/sagen/move2who-4/txdav/dps/json.py</a></li>
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<h3>Diff</h3>
<a id="CalendarServerbranchesuserssagenmove2who4txdavdpsjsonpy"></a>
<div class="addfile"><h4>Added: CalendarServer/branches/users/sagen/move2who-4/txdav/dps/json.py (0 => 13032)</h4>
<pre class="diff"><span>
<span class="info">--- CalendarServer/branches/users/sagen/move2who-4/txdav/dps/json.py (rev 0)
+++ CalendarServer/branches/users/sagen/move2who-4/txdav/dps/json.py 2014-03-28 20:57:18 UTC (rev 13032)
</span><span class="lines">@@ -0,0 +1,90 @@
</span><ins>+##
+# Copyright (c) 2014 Apple Inc. All rights reserved.
+#
+# Licensed 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.
+##
+
+from __future__ import absolute_import
+
+"""
+JSON serialization utilities.
+"""
+
+__all__ = [
+ "expressionAsJSONText",
+ "expressionFromJSONText",
+]
+
+from json import dumps, loads as from_json_text
+
+from twext.who.expression import (
+ CompoundExpression, Operand,
+ MatchExpression, MatchType, MatchFlags,
+)
+
+
+
+def expressionAsJSONText(expression):
+ return to_json_text(expressionAsJSON(expression))
+
+
+def expressionAsJSON(expression):
+ if isinstance(expression, CompoundExpression):
+ return compoundExpressionAsJSON(expression)
+
+ if isinstance(expression, MatchExpression):
+ return matchExpressionAsJSON(expression)
+
+ raise NotImplementedError(
+ "Unknown expression type: {!r}".format(expression)
+ )
+
+
+def compoundExpressionAsJSON(expression):
+ return dict(
+ type=expression.__class__.__name__,
+ operand=expression.operand.name,
+ expressions=[expressionAsJSON(e) for e in expression.expressions],
+ )
+
+
+def matchExpressionAsJSON(expression):
+ return dict(
+ type=expression.__class__.__name__,
+ field=expression.fieldName.name,
+ value=expression.fieldValue,
+ match=expression.matchType.name,
+ flags=expression.flags.name,
+ )
+ raise NotImplementedError()
+
+
+def expressionFromJSONText(jsonText):
+ Operand
+ MatchType, MatchFlags
+ from_json_text
+ raise NotImplementedError()
+
+
+
+def to_json_text(obj):
+ """
+ Convert an object into JSON text.
+
+ @param obj: An object that is serializable to JSON.
+ @type obj: L{object}
+
+ @return: JSON text.
+ @rtype: L{unicode}
+ """
+ return dumps(obj, separators=(',', ':')).decode("UTF-8")
</ins></span></pre>
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