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Unified Diff: gslib/third_party/storage_apitools/extra_types.py

Issue 698893003: Update checked in version of gsutil to version 4.6 (Closed) Base URL: http://dart.googlecode.com/svn/third_party/gsutil/
Patch Set: Created 6 years, 1 month ago
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Index: gslib/third_party/storage_apitools/extra_types.py
===================================================================
--- gslib/third_party/storage_apitools/extra_types.py (revision 0)
+++ gslib/third_party/storage_apitools/extra_types.py (revision 0)
@@ -0,0 +1,246 @@
+# Copyright 2014 Google 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.
+"""Extra types understood by apitools.
+
+This file will be replaced by a .proto file when we switch to proto2
+from protorpc.
+"""
+
+import collections
+import json
+import numbers
+
+from gslib.third_party.protorpc import message_types
+from gslib.third_party.protorpc import messages
+from gslib.third_party.protorpc import protojson
+
+from gslib.third_party.storage_apitools import encoding
+from gslib.third_party.storage_apitools import exceptions
+from gslib.third_party.storage_apitools import util
+
+__all__ = [
+ 'DateTimeMessage',
+ 'JsonArray',
+ 'JsonObject',
+ 'JsonValue',
+ 'JsonProtoEncoder',
+ 'JsonProtoDecoder',
+]
+
+# We import from protorpc.
+# pylint:disable=invalid-name
+DateTimeMessage = message_types.DateTimeMessage
+# pylint:enable=invalid-name
+
+
+def _ValidateJsonValue(json_value):
+ entries = [(f, json_value.get_assigned_value(f.name))
+ for f in json_value.all_fields()]
+ assigned_entries = [(f, value) for f, value in entries if value is not None]
+ if len(assigned_entries) != 1:
+ raise exceptions.InvalidDataError('Malformed JsonValue: %s' % json_value)
+
+
+def _JsonValueToPythonValue(json_value):
+ """Convert the given JsonValue to a json string."""
+ util.Typecheck(json_value, JsonValue)
+ _ValidateJsonValue(json_value)
+ if json_value.is_null:
+ return None
+ entries = [(f, json_value.get_assigned_value(f.name))
+ for f in json_value.all_fields()]
+ assigned_entries = [(f, value) for f, value in entries if value is not None]
+ field, value = assigned_entries[0]
+ if not isinstance(field, messages.MessageField):
+ return value
+ elif field.message_type is JsonObject:
+ return _JsonObjectToPythonValue(value)
+ elif field.message_type is JsonArray:
+ return _JsonArrayToPythonValue(value)
+
+
+def _JsonObjectToPythonValue(json_value):
+ util.Typecheck(json_value, JsonObject)
+ return dict([(prop.key, _JsonValueToPythonValue(prop.value)) for prop
+ in json_value.properties])
+
+
+def _JsonArrayToPythonValue(json_value):
+ util.Typecheck(json_value, JsonArray)
+ return [_JsonValueToPythonValue(e) for e in json_value.entries]
+
+
+_MAXINT64 = 2 << 63 - 1
+_MININT64 = -(2 << 63)
+
+
+def _PythonValueToJsonValue(py_value):
+ """Convert the given python value to a JsonValue."""
+ if py_value is None:
+ return JsonValue(is_null=True)
+ if isinstance(py_value, bool):
+ return JsonValue(boolean_value=py_value)
+ if isinstance(py_value, basestring):
+ return JsonValue(string_value=py_value)
+ if isinstance(py_value, numbers.Number):
+ if isinstance(py_value, (int, long)):
+ if _MININT64 < py_value < _MAXINT64:
+ return JsonValue(integer_value=py_value)
+ return JsonValue(double_value=float(py_value))
+ if isinstance(py_value, dict):
+ return JsonValue(object_value=_PythonValueToJsonObject(py_value))
+ if isinstance(py_value, collections.Iterable):
+ return JsonValue(array_value=_PythonValueToJsonArray(py_value))
+ raise exceptions.InvalidDataError(
+ 'Cannot convert "%s" to JsonValue' % py_value)
+
+
+def _PythonValueToJsonObject(py_value):
+ util.Typecheck(py_value, dict)
+ return JsonObject(
+ properties=[
+ JsonObject.Property(key=key, value=_PythonValueToJsonValue(value))
+ for key, value in py_value.iteritems()])
+
+
+def _PythonValueToJsonArray(py_value):
+ return JsonArray(entries=map(_PythonValueToJsonValue, py_value))
+
+
+class JsonValue(messages.Message):
+ """Any valid JSON value."""
+ # Is this JSON object `null`?
+ is_null = messages.BooleanField(1, default=False)
+
+ # Exactly one of the following is provided if is_null is False; none
+ # should be provided if is_null is True.
+ boolean_value = messages.BooleanField(2)
+ string_value = messages.StringField(3)
+ # We keep two numeric fields to keep int64 round-trips exact.
+ double_value = messages.FloatField(4, variant=messages.Variant.DOUBLE)
+ integer_value = messages.IntegerField(5, variant=messages.Variant.INT64)
+ # Compound types
+ object_value = messages.MessageField('JsonObject', 6)
+ array_value = messages.MessageField('JsonArray', 7)
+
+
+class JsonObject(messages.Message):
+ """A JSON object value.
+
+ Messages:
+ Property: A property of a JsonObject.
+
+ Fields:
+ properties: A list of properties of a JsonObject.
+ """
+
+ class Property(messages.Message):
+ """A property of a JSON object.
+
+ Fields:
+ key: Name of the property.
+ value: A JsonValue attribute.
+ """
+ key = messages.StringField(1)
+ value = messages.MessageField(JsonValue, 2)
+
+ properties = messages.MessageField(Property, 1, repeated=True)
+
+
+class JsonArray(messages.Message):
+ """A JSON array value."""
+ entries = messages.MessageField(JsonValue, 1, repeated=True)
+
+
+_JSON_PROTO_TO_PYTHON_MAP = {
+ JsonArray: _JsonArrayToPythonValue,
+ JsonObject: _JsonObjectToPythonValue,
+ JsonValue: _JsonValueToPythonValue,
+}
+_JSON_PROTO_TYPES = tuple(_JSON_PROTO_TO_PYTHON_MAP.keys())
+
+
+def _JsonProtoToPythonValue(json_proto):
+ util.Typecheck(json_proto, _JSON_PROTO_TYPES)
+ return _JSON_PROTO_TO_PYTHON_MAP[type(json_proto)](json_proto)
+
+
+def _PythonValueToJsonProto(py_value):
+ if isinstance(py_value, dict):
+ return _PythonValueToJsonObject(py_value)
+ if (isinstance(py_value, collections.Iterable) and
+ not isinstance(py_value, basestring)):
+ return _PythonValueToJsonArray(py_value)
+ return _PythonValueToJsonValue(py_value)
+
+
+def _JsonProtoToJson(json_proto, unused_encoder=None):
+ return json.dumps(_JsonProtoToPythonValue(json_proto))
+
+
+def _JsonToJsonProto(json_data, unused_decoder=None):
+ return _PythonValueToJsonProto(json.loads(json_data))
+
+
+# pylint:disable=invalid-name
+JsonProtoEncoder = _JsonProtoToJson
+JsonProtoDecoder = _JsonToJsonProto
+# pylint:enable=invalid-name
+encoding.RegisterCustomMessageCodec(
+ encoder=JsonProtoEncoder, decoder=JsonProtoDecoder)(JsonValue)
+encoding.RegisterCustomMessageCodec(
+ encoder=JsonProtoEncoder, decoder=JsonProtoDecoder)(JsonObject)
+encoding.RegisterCustomMessageCodec(
+ encoder=JsonProtoEncoder, decoder=JsonProtoDecoder)(JsonArray)
+
+
+def _EncodeDateTimeField(field, value):
+ result = protojson.ProtoJson().encode_field(field, value)
+ return encoding.CodecResult(value=result, complete=True)
+
+
+def _DecodeDateTimeField(unused_field, value):
+ result = protojson.ProtoJson().decode_field(
+ message_types.DateTimeField(1), value)
+ return encoding.CodecResult(value=result, complete=True)
+
+
+encoding.RegisterFieldTypeCodec(_EncodeDateTimeField, _DecodeDateTimeField)(
+ message_types.DateTimeField)
+
+
+# Handle the int64<-->string conversion apiary requires
+def _EncodeInt64Field(field, value):
+ """Handle the special case of int64 as a string."""
+ capabilities = [
+ messages.Variant.INT64,
+ messages.Variant.UINT64,
+ ]
+ if field.variant not in capabilities:
+ return encoding.CodecResult(value=value, complete=False)
+
+ if field.repeated:
+ result = [str(x) for x in value]
+ else:
+ result = str(value)
+ return encoding.CodecResult(value=result, complete=True)
+
+
+def _DecodeInt64Field(unused_field, value):
+ # Don't need to do anything special, they're decoded just fine
+ return encoding.CodecResult(value=value, complete=False)
+
+encoding.RegisterFieldTypeCodec(_EncodeInt64Field, _DecodeInt64Field)(
+ messages.IntegerField)
+
Property changes on: gslib/third_party/storage_apitools/extra_types.py
___________________________________________________________________
Added: svn:eol-style
+ LF
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