serialization_utils.py 11.7 KB
Newer Older
1
from import_dotnet import *
2
3
import time
import logging
4
logging.basicConfig(format='%(asctime)s %(message)s', level=logging.INFO)
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282


#------------------------------supposed----------------------------------------
# Generic interfaces for pickling .net or standard objects
#------------------------------------------------------------------------------

#check if .net object and wrap it accordingly
def GetBaseOrLSO(obj):
    #print "----------------------------------------------------------------------------------"
    #print hasattr(obj, "GetType")
    if (hasattr(obj, "GetType")):
        #print System.Object().GetType().IsAssignableFrom(obj.GetType())
        #print "----------------------------------------------------------------------------------"
        if System.Object().GetType().IsAssignableFrom(obj.GetType()):
            try:
                srlz = Latino.ISerializable(obj)
                return LSO(srlz)
            except:
                return obj
        else:
            return obj
    else:
        #print "----------------------------------------------------------------------------------"
        return obj

#------------------------------supposed------------------------------------------------
# Generic interfaces for pickling .net objects
#------------------------------------------------------------------------------
class SerializableObject:
    netObj = None
    constructor = '<constructor_func_name>'
    def __init__(self, object = None):
        self.netObj = object
        self.copyAttributes()
    def createInstance(self, dict):
        constr = eval(self.constructor)
        args = self.getConstructorArgs(dict)
        self.netObj = constr(*args)
        self.copyAttributes()
    def getConstructorArgs(self, dict):
        if dict.has_key('constructorArgs'):
            return tuple([val for key,val in dict['constructorArgs'].items()])
        return ()
    def copyAttributes(self): #copy all attributes from wrapped object to the wrapper
        pass
        #for attr in dir(self.netObj):
        #    if hasattr(self.netObj, attr) and not hasattr(self, attr):
        #        setattr(self, attr, getattr(self.netObj, attr))
    def __repr__(self):
        #return "<" + self.netObj.__str__() + " wrapped in "+self.__class__.__name__+">"
        return "<" + self.netObj.__str__() + ">"
    def netObj(self):
        return self.netObj

class LatinoSerializableObject(SerializableObject):
    def __getstate__(self):
        logging.info('Serialize {0} with latino serializer (start)'.format(self.netObj.__class__.__name__))
        start = time.clock()
        byteData = LatinoCF.Save(self.netObj)
        elapsed = (time.clock() - start)
        logging.info('Serialize {0} with latino serializer (end, size: {1:,} chars) in {2} ms'.format(self.netObj.__class__.__name__, len(byteData),elapsed))
        return {'byteData': byteData}
    def __setstate__(self, dict):
        logging.info('Deserialize {0} with latino deserializer (start)'.format("<LatinoObject>"))
        start = time.clock()
        self.netObj = LatinoCF.Load(dict['byteData'])
        self.copyAttributes()
        elapsed = (time.clock() - start)
        logging.info('Deserialize {0} with latino deserializer (end, size: {1:,} chars) in {2} ms'.format(self.netObj.__class__.__name__, len(dict['byteData']),elapsed))
    def __repr__(self):
        return "<LSO: " + self.netObj.__str__() + ">"

LSO = LatinoSerializableObject

class ObjectFunctionSerializableObject(SerializableObject):
    save = '<save_data_func_name>'
    load = '<load_data_func_name>'
    def __getstate__(self):
        logging.info('Serialize {0} with obj.function {1} (start)'.format(self.__class__.__name__, self.save))
        saveFunc = getattr(self.netObj, self.save)
        data = saveFunc()
        logging.info('Serialize {0} with obj.function {1} (end, size: {2:,} chars)'.format(self.__class__.__name__, self.save, len(data)))
        return {'data': data}
    def __setstate__(self, dict):
        logging.info('Deserialize {0} with obj.function {1} (start)'.format(self.__class__.__name__, self.load))
        self.createInstance(dict)
        loadFunc = getattr(self.netObj, self.load)
        loadFunc(dict['data'])
        logging.info('Deserialize {0} with obj.function {1} (end, size: {2:,} chars)'.format(self.__class__.__name__, self.load, len(dict['data'])))

class ExternalFunctionSerializableObject(SerializableObject):
    save = '<save_data_func_name>'
    load = '<load_data_func_name>'
    def __getstate__(self):
        logging.info('Serialize {0} with ext.function {1} (start)'.format(self.__class__.__name__, self.save))
        saveFunc = eval(self.save)
        data = saveFunc(self.netObj)
        logging.info('Serialize {0} with ext.function {1} (end, size: {2:,} chars)'.format(self.__class__.__name__, self.save, len(data)))
        return {'data': data}
    def __setstate__(self, dict):
        logging.info('Deserialize {0} with ext.function {1} (start)'.format(self.__class__.__name__, self.load))
        loadFunc = eval(self.load)
        self.netObj = loadFunc(dict['data'])
        self.copyAttributes()
        logging.info('Deserialize {0} with ext.function {1} (end, size: {2:,} chars)'.format(self.__class__.__name__, self.load, len(dict['data'])))

class PropertySerializableObject(SerializableObject):
    constructorArgs = []
    props = []
    def __getstate__(self):
        logging.info('Serialize {0} properties (start)'.format(self.__class__.__name__))
        dictToSave = {'props':{},'constructorArgs':{}}
        for prop in self.props:
            if hasattr(self.netObj, prop):
                dictToSave['props'][prop] = getattr(self.netObj, prop)
        for constructorArg in self.constructorArgs:
            if hasattr(self.netObj, constructorArg):
                dictToSave['constructorArgs'][constructorArg] = getattr(self.netObj, constructorArg)
        logging.info('Serialize {0} properties (end {1:,} properties)'.format(self.__class__.__name__, len(dictToSave['props'])+len(dictToSave['constructorArgs'])))
        return dictToSave
    def __setstate__(self, dict):
        logging.info('Deserialize {0} properties (start)'.format(self.__class__.__name__))
        self.createInstance(dict)
        for prop in dict:
            if hasattr(self.netObj, prop):
                setattr(self.netObj, prop, dict[prop])
        logging.info('Deserialize {0} properties (end {1:,} properties)'.format(self.__class__.__name__, len(dict['props'])+len(dict['constructorArgs'])))

class ManuallySerializableObject(SerializableObject):
    def __getstate__(self):
        logging.info('Serialize {0} manually (start)'.format(self.__class__.__name__))
        dictToSave = self.getstate()
        logging.info('Serialize {0} manually ({1:,} properties)'.format(self.__class__.__name__, len(dictToSave)))
        return dictToSave
    def __setstate__(self, dict):
        logging.info('Deserialize {0} manually start)'.format(self.__class__.__name__))
        self.createInstance(dict)
        self.setstate(dict)
        logging.info('Deserialize {0} manually ({1:,} properties)'.format(self.__class__.__name__, len(dict)))
    def getstate(self):
        return {}
    def setstate(self, dict):
        pass

#------------------------------------------------------------------------------
# Helper functions
#------------------------------------------------------------------------------
def ToInt(s):
    try:
        return int(s)
    except:
        return 0
def ToFloat(s):
    try:
        return float(s)
    except:
        return 0
def ToBool(s):
    if s == 'true' or s == 'True':
        return True
    else:
        return False
def ToString(s):
    return s
def ToEnum(typ, s,defaultValue):
    return LatinoCF.ParseEnum[typ](s, defaultValue)
def ToIntList(s):
    il = []
    for i in s:
        il.append(ToInt(i))
    return il
def ToPyList(l):
    return [x for x in l]
def ToNetList(Type,l):
    a = System.Array[Type](l)
    return a
def IsSequence(arg):
    return (not hasattr(arg, "strip") and
            hasattr(arg, "__getitem__") or
            hasattr(arg, "__iter__"))
def Flatten(l, ltypes=(list, tuple)):
    ltype = type(l)
    l = list(l)
    i = 0
    while i < len(l):
        while isinstance(l[i], ltypes):
            if not l[i]:
                l.pop(i)
                i -= 1
                break
            else:
                l[i:i + 1] = l[i]
        i += 1
    return ltype(l)

def ToNetObj(data):
    if hasattr(data, "netObj"):
        return data.netObj
    if isinstance(data, dict):
        if not len(data):
            return System.Collections.Generic.Dictionary[System.Object,System.Object]()
        else:
            key = ToNetObj(data.keys()[0])
            val = ToNetObj(data.values()[0])
            for tryIndex in [0, 1]:
                try:
                    if not tryIndex:
                        d = System.Collections.Generic.Dictionary[type(key),type(val)]()
                    else:
                        d = System.Collections.Generic.Dictionary[System.Object,System.Object]()
                    for key,val in data.items():
                        k = ToNetObj(key)
                        v = ToNetObj(val)
                        d[k] = v
                    return d
                except:
                    pass
            return System.Object()
    if isinstance(data, list):
        if not len(data):
            return System.Collections.Generic.List[System.Object]()
        else:
            dataNet = ToNetObj(data[0])
            for tryIndex in [0, 1]:
                try:
                    if not tryIndex:
                        l = System.Collections.Generic.List[type(dataNet)]()
                    else:
                        l = System.Collections.Generic.List[System.Object]()
                    for i, val in enumerate(data):
                        l.Add(ToNetObj(val))
                    return l
                except:
                    pass
            return System.Object()
    if isinstance(data, tuple):
        if not len(data):
            return System.Collections.Generic.LinkedList[System.Object]()
        else:
            dataNet = ToNetObj(data[0])
            for tryIndex in [0, 1]:
                try:
                    if not tryIndex:
                        a = System.Collections.Generic.LinkedList[type(dataNet)]()
                    else:
                        a = System.Collections.Generic.LinkedList[System.Object]()
                    for i, val in enumerate(data):
                        a.AddLast(ToNetObj(val))
                    return a
                except:
                    pass
            return System.Object()
    return data
def ToPyObj(data):
    if hasattr(data, "GetType") and data.GetType().IsGenericType:
        genType = data.GetType().GetGenericTypeDefinition()
        if genType.Equals(System.Collections.Generic.Dictionary):
            d = {}
            for keyVal in data:
                k = ToPyObj(keyVal.Key)
                v = ToPyObj(keyVal.Value)
                d[k] = v
            return d
        if genType.Equals(System.Collections.Generic.List):
            l = []
            for val in data:
                l.append(ToPyObj(val))
            return l
        if genType.Equals(System.Collections.Generic.LinkedList):
            l = []
            for val in data:
                l.append(ToPyObj(val))
            return tuple(l)
    if hasattr(data, "GetType"):
        for interface in data.GetType().GetInterfaces():
            if interface.Name == u'ISerializable':
                return LSO(data)
    return data