ige.IMarshal.IMarshal.encode() - Code Metrics - Inspection of "Refactoring of planet production phase code." - ospaceteam/outerspace - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#192)

by Marek

created 2018-06-23 22:22 UTC

ige.IMarshal.IMarshal.encode() A

↳ Parent: ige.IMarshal

Complexity

Conditions

Size

Total Lines	14
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	10
nop	3
dl	0
loc	14
rs	9.9
c	0
b	0
f	0

#
#  Copyright 2001 - 2016 Ludek Smid [http://www.ospace.net/]
#
#  This file is part of Outer Space.
#
#  Outer Space is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  Outer Space is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with Outer Space; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
import types

from IDataHolder import IDataHolder
import zlib, string

__all__ = ('EncodeException', 'DecodeException', 'IPacket', 'IMarshal')

class EncodeException(Exception):
    pass

class DecodeException(Exception):
    pass

class IPacket:

    def __init__(self):
        self.sid = None
        self.method = None
        self.params = None
        self.result = None
        self.messages = None
        self.exception = None
        self.clientAddr = None

    def __repr__(self):
        result = '<%s.%s %d ' % (self.__class__.__module__, self.__class__.__name__, id(self))
        for key, value in self.__dict__.items():
            result += '%s=%s, ' % (key, repr(value))
        result += '>'
        return result

class IMarshal:

    def __init__(self):
        pass

    def encode(self, data, version = "V20"):
        if version == "V11":
            return u'V11%s' % string.join(self.__encodeV11(data), '')
            # Profiling code TODO remove profiling code
            data = u'V11%s' % self.__encodeV11(data)
            stats.encBytes += len(data)
            # TODO remove zlib profiling
            stats.zipBytes += len(zlib.compress(data))
            # End of profiling code
            return data
        elif version == "V20":
            return "V20%s" % zlib.compress(pickle.dumps(data, 1))
        else:
            raise EncodeException("Cannot handle version %s." % version)

    def __encodeV11(self, data, isKey = 0):
        t = type(data)
        if t == types.NoneType:
            return [u'|N']
        elif t == types.IntType:
            return [u'|I%d' % (data,)]
        elif t == types.LongType:
            return [u'|G%d' % (data,)]
        elif t == types.FloatType:
            return [u'|F%.2f' % (data,)]
        elif t == types.StringType:
            # Profiling code TODO comment this code
            #if isKey:
            #    global stats
            #    stats.data[data] = stats.data.get(data, 0) + 1
            #    stats.total += 1
            #    stats.totalBytes += len(data)
            #    if stats.total % 100 == 0:
            #        saveStats()
            #    if compress.has_key(data):
            #        stats.hits += 1
            #        stats.savedBytes += len(data) - len(compress[data])
            # End of profiling code
            if compress.has_key(data):
                return [u'|C%s' % (compress[data])]
            return [u'|S%s' % (data.replace('\\','\\\\').replace('|', '\\/').replace('\n', '\\n').replace('\r', '\\r'),)]
        elif t == types.UnicodeType:
            return [u'|U%s' % (data.replace('\\','\\\\').replace('|', '\\/').replace('\n', '\\n').replace('\r', '\\r'),)]
        elif t == types.ListType:
            result = [u'|L']
            for item in data:
                result.extend(self.__encodeV11(item))
            result.append(u'|E')
            return result
        elif t == types.TupleType:
            result = [u'|T']
            for item in data:
                result.extend(self.__encodeV11(item))
            result.append(u'|E')
            return result
        elif t == types.DictType:
            result = [u'|D']
            for item in data.keys():
                result.extend(self.__encodeV11(item, 1))
                result.extend(self.__encodeV11(data[item]))
            result.append(u'|E')
            return result
        elif t == types.InstanceType:
            result = [u'|O']
            result.extend(self.__encodeV11('%s.%s' % (data.__class__.__module__, data.__class__.__name__), 1))
            for item in data.__dict__.keys():
                result.extend(self.__encodeV11(item, 1))
                result.extend(self.__encodeV11(data.__dict__[item]))
            result.append(u'|E')
            return result
        else:
            raise EncodeException('Cannot handle ' + repr(t))

    def decode(self, str):
        prefix = str[:3]
        if prefix == u'V11':
            self.index = 0
            list = str.split('|')
            self.list = list[1:]
            data = self.__decodeV11()
        elif prefix == u'V20':
            data = pickle.loads(zlib.decompress(str[3:]))
        else:
            raise DecodeException('Cannot handle version %s [message: %s]' % (prefix, str))
        return data

    def __decodeV11(self):
        item = self.list[self.index]
        self.index += 1
        #@print self.index,
        t = item[0]
        if t == u'N':
            #@print 'None'
            return None
        if t == u'I':
            return int(item[1:])
        if t == u'G':
            return long(item[1:])

        if t == u'F':
            return float(item[1:])
        elif t == u'S':
            #@print 'String', item[1:]
            str = item[1:]
            i = str.find('\\')
            index = 0
            result = ''
            while i > -1:

                #@print str, i,
                result += str[index:i]
                index = i + 2
                c = str[i + 1]
                if c == 'n': result += '\n'
                elif c == 'r': result += '\r'
                elif c == '/': result += '|'
                else: result += c
                #@print repr(result)
                i = str.find('\\', i + 2)
            result += str[index:]
            return result.encode('ascii')
        elif t == u'U':
            #@print 'String', item[1:]
            str = item[1:]
            i = str.find('\\')
            index = 0
            result = ''
            while i > -1:

                #@print str, i,
                result += str[index:i]
                index = i + 2
                c = str[i + 1]
                if c == 'n': result += '\n'
                elif c == 'r': result += '\r'
                elif c == '/': result += '|'
                else: result += c
                #@print repr(result)
                i = str.find('\\', i + 2)
            result += str[index:]
            return result
        elif t == u'C':
            return decompress[item[1:]]
        elif t == u'T':
            #@print 'Tuple'
            result = []
            while self.list[self.index][0] != 'E':
                result.append(self.__decodeV11())
            self.index += 1
            #@print ':=', result
            return tuple(result)
        elif t == u'L':
            #@print 'Tuple'
            result = []
            while self.list[self.index][0] != 'E':
                result.append(self.__decodeV11())
            self.index += 1
            #@print ':=', result
            return result
        elif t == u'D':
            #@print 'Dict'
            result = {}
            while self.list[self.index][0] != 'E':
                key = self.__decodeV11()
                value = self.__decodeV11()
                result[key] = value
            self.index += 1
            #@print ':=', result
            return result
        elif t == u'O':
            #@print 'Dict'
            str = self.__decodeV11()
            if str == 'ige.IMarshal.IPacket':
                result = IPacket()
            elif str == 'ige.IDataHolder.IDataHolder':
                result = IDataHolder()
            else:
                DecodeException('Unsupported class %s' % str)
            while self.list[self.index][0] != 'E':
                key = self.__decodeV11()
                value = self.__decodeV11()
                setattr(result, key ,value)

            self.index += 1
            #@print ':=', result
            return result
        else:
            raise DecodeException('Cannot handle type <%s>' % t)

# (de)compress dictionary
#try:
#    from ICompressScheme import compress
#except ImportError:
compress = {}

decompress = {}

for key, value in compress.items():
    decompress[str(value)] = key

# statistics
import cPickle as pickle

class Stats:
    def __init__(self):
        self.data = {}
        self.total = 0
        self.hits = 0
        self.totalBytes = 0
        self.savedBytes = 0
        self.encBytes = 0
        self.zipBytes = 0

# load stats TODO remove profiling code
# TODO change dir according to config file
try:
    fh = open('var/marshal.stats.data', 'rb')
    stats = pickle.load(fh)
    fh.close()
except IOError, e:
    stats = Stats()
except EOFError, e:
    stats = Stats()

def saveStats(directory):
    print 'Saving IMarshal statistics'
    # stats
    fh = open(os.path.join(directory, 'marshal.stats.data'), 'wb')

    pickle.dump(stats, fh, 1)
    fh.close()
    # various data
    keys = []
    for key in stats.data.keys():
        keys.append((len(key) * stats.data[key],key))
    keys.sort()
    keys.reverse()
    fstats = open(os.path.join(directory, 'marshal.stats'), 'w')
    fscheme = open(os.path.join(directory, 'marshal.cscheme'), 'w')
    fpysrc = open(os.path.join(directory, 'marshal.cscheme.py'), 'w')
    print >> fpysrc, 'compress = {'
    print >> fstats, '# Summary'
    print >> fstats, '# Total strings:', stats.total
    print >> fstats, '# Compressed strings:', stats.hits
    print >> fstats, '# Uncompressed strings:', stats.total - stats.hits
    print >> fstats, '# Ratio:', stats.hits / stats.total * 100L, '%'
    print >> fstats, '# Uncompressed size:', stats.totalBytes
    print >> fstats, '# Compressed size:', stats.totalBytes - stats.savedBytes
    print >> fstats, '# Saved bytes:', stats.savedBytes
    print >> fstats, '# Ratio:', stats.savedBytes / stats.totalBytes * 100L, '%'
    print >> fstats, '# Encoded pckt bytes total:', stats.encBytes
    print >> fstats, '# Encoded pckt bytes total (no compression, est.):', stats.encBytes + stats.savedBytes
    print >> fstats, '# Ratio:', stats.encBytes / (stats.encBytes + stats.savedBytes) * 100L, '%'
    print >> fstats, '# Encoded pckt bytes total (zipped):', stats.zipBytes
    print >> fstats, '# Ratio (to compressed):', stats.zipBytes / stats.encBytes * 100L, '%'
    print >> fstats, '# Ratio (to uncompressed):', stats.zipBytes / (stats.encBytes + stats.savedBytes)* 100L , '%'
    print >> fstats, '# total bytes,number of items,string'
    index = 0
    for key in keys:
        count, name = key
        print >> fstats, '%d,%d,%s' % (count, stats.data[name], name)
        code = makeCode(index)
        # include in scheme when there is save in bytes
        if len(code) < len(name):
            print >> fscheme, code, name
            print >> fpysrc, "    '%s' : '%s'," % (name, code)
        index += 1
    print >>fpysrc, '}'
    fstats.close()
    fscheme.close()
    fpysrc.close()

codeChars = '0123456789abcdefghjiklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

def makeCode(index):
    if index < len(codeChars):
        return codeChars[index]
    elif index / len(codeChars) - 1 < len(codeChars):
        return '%s%s' % (
            codeChars[index / len(codeChars) - 1],
            codeChars[index % len(codeChars)]
        )
    else:
        return None

# testing only
if __name__ == '__main__':

    packet = IPacket()
    packet.sid = '0123456789'
    packet.method = 'test'
    packet.params = { 'name':u'Corvus', 'componentOf':1001, 'rules':[1,2], 'isA': (1,2) }
    marshal = IMarshal()

    str = marshal.encode(packet)

    print repr(str)
    print len(str)
    packet = marshal.decode(str)
    print packet.params

    import pprint
    pprint.pprint(packet.params)



1		#
2		# Copyright 2001 - 2016 Ludek Smid [http://www.ospace.net/]
3		#
4		# This file is part of Outer Space.
5		#
6		# Outer Space is free software; you can redistribute it and/or modify
7		# it under the terms of the GNU General Public License as published by
8		# the Free Software Foundation; either version 2 of the License, or
9		# (at your option) any later version.
10		#
11		# Outer Space is distributed in the hope that it will be useful,
12		# but WITHOUT ANY WARRANTY; without even the implied warranty of
13		# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14		# GNU General Public License for more details.
15		#
16		# You should have received a copy of the GNU General Public License
17		# along with Outer Space; if not, write to the Free Software
18		# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19		#
20		import types
21
22		from IDataHolder import IDataHolder
23		import zlib, string
24
25		__all__ = ('EncodeException', 'DecodeException', 'IPacket', 'IMarshal')
26
27		class EncodeException(Exception):
28		pass
29
30		class DecodeException(Exception):
31		pass
32
33		class IPacket:
34
35		def __init__(self):
36		self.sid = None
37		self.method = None
38		self.params = None
39		self.result = None
40		self.messages = None
41		self.exception = None
42		self.clientAddr = None
43
44		def __repr__(self):
45		result = '<%s.%s %d ' % (self.__class__.__module__, self.__class__.__name__, id(self))
46		for key, value in self.__dict__.items():
47		result += '%s=%s, ' % (key, repr(value))
48		result += '>'
49		return result
50
51		class IMarshal:
52
53		def __init__(self):
54		pass
55
56		def encode(self, data, version = "V20"):
57		if version == "V11":
58		return u'V11%s' % string.join(self.__encodeV11(data), '')
59		# Profiling code TODO remove profiling code
60		data = u'V11%s' % self.__encodeV11(data)
61		stats.encBytes += len(data)
62		# TODO remove zlib profiling
63		stats.zipBytes += len(zlib.compress(data))
64		# End of profiling code
65		return data
66		elif version == "V20":
67		return "V20%s" % zlib.compress(pickle.dumps(data, 1))
68		else:
69		raise EncodeException("Cannot handle version %s." % version)
70
71		def __encodeV11(self, data, isKey = 0):
72		t = type(data)
73		if t == types.NoneType:
74		return [u'\|N']
75		elif t == types.IntType:
76		return [u'\|I%d' % (data,)]
77		elif t == types.LongType:
78		return [u'\|G%d' % (data,)]
79		elif t == types.FloatType:
80		return [u'\|F%.2f' % (data,)]
81		elif t == types.StringType:
82		# Profiling code TODO comment this code
83		#if isKey:
84		# global stats
85		# stats.data[data] = stats.data.get(data, 0) + 1
86		# stats.total += 1
87		# stats.totalBytes += len(data)
88		# if stats.total % 100 == 0:
89		# saveStats()
90		# if compress.has_key(data):
91		# stats.hits += 1
92		# stats.savedBytes += len(data) - len(compress[data])
93		# End of profiling code
94		if compress.has_key(data):
95		return [u'\|C%s' % (compress[data])]
96		return [u'\|S%s' % (data.replace('\\','\\\\').replace('\|', '\\/').replace('\n', '\\n').replace('\r', '\\r'),)]
97		elif t == types.UnicodeType:
98		return [u'\|U%s' % (data.replace('\\','\\\\').replace('\|', '\\/').replace('\n', '\\n').replace('\r', '\\r'),)]
99		elif t == types.ListType:
100		result = [u'\|L']
101		for item in data:
102		result.extend(self.__encodeV11(item))
103		result.append(u'\|E')
104		return result
105		elif t == types.TupleType:
106		result = [u'\|T']
107		for item in data:
108		result.extend(self.__encodeV11(item))
109		result.append(u'\|E')
110		return result
111		elif t == types.DictType:
112		result = [u'\|D']
113		for item in data.keys():
114		result.extend(self.__encodeV11(item, 1))
115		result.extend(self.__encodeV11(data[item]))
116		result.append(u'\|E')
117		return result
118		elif t == types.InstanceType:
119		result = [u'\|O']
120		result.extend(self.__encodeV11('%s.%s' % (data.__class__.__module__, data.__class__.__name__), 1))
121		for item in data.__dict__.keys():
122		result.extend(self.__encodeV11(item, 1))
123		result.extend(self.__encodeV11(data.__dict__[item]))
124		result.append(u'\|E')
125		return result
126		else:
127		raise EncodeException('Cannot handle ' + repr(t))
128
129		def decode(self, str):
130		prefix = str[:3]
131		if prefix == u'V11':
132		self.index = 0
133		list = str.split('\|')
134		self.list = list[1:]
135		data = self.__decodeV11()
136		elif prefix == u'V20':
137		data = pickle.loads(zlib.decompress(str[3:]))
138		else:
139		raise DecodeException('Cannot handle version %s [message: %s]' % (prefix, str))
140		return data
141
142		def __decodeV11(self):
143		item = self.list[self.index]
144		self.index += 1
145		#@print self.index,
146		t = item[0]
147		if t == u'N':
148		#@print 'None'
149		return None
150		if t == u'I':
151		return int(item[1:])
152		if t == u'G':
153		return long(item[1:])
		0 ignored issues – show Comprehensibility Best Practice introduced 2018-06-13 22:14 UTC by Report Bug Copy Issue Report The variable `long` does not seem to be defined. Loading history...
154		if t == u'F':
155		return float(item[1:])
156		elif t == u'S':
157		#@print 'String', item[1:]
158		str = item[1:]
159		i = str.find('\\')
160		index = 0
161		result = ''
162	View Code Duplication	while i > -1:
		0 ignored issues – show Duplication introduced 2018-06-13 22:14 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
163		#@print str, i,
164		result += str[index:i]
165		index = i + 2
166		c = str[i + 1]
167		if c == 'n': result += '\n'
168		elif c == 'r': result += '\r'
169		elif c == '/': result += '\|'
170		else: result += c
171		#@print repr(result)
172		i = str.find('\\', i + 2)
173		result += str[index:]
174		return result.encode('ascii')
175		elif t == u'U':
176		#@print 'String', item[1:]
177		str = item[1:]
178		i = str.find('\\')
179		index = 0
180		result = ''
181	View Code Duplication	while i > -1:
		0 ignored issues – show Duplication introduced 2018-06-13 22:14 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
182		#@print str, i,
183		result += str[index:i]
184		index = i + 2
185		c = str[i + 1]
186		if c == 'n': result += '\n'
187		elif c == 'r': result += '\r'
188		elif c == '/': result += '\|'
189		else: result += c
190		#@print repr(result)
191		i = str.find('\\', i + 2)
192		result += str[index:]
193		return result
194		elif t == u'C':
195		return decompress[item[1:]]
196		elif t == u'T':
197		#@print 'Tuple'
198		result = []
199		while self.list[self.index][0] != 'E':
200		result.append(self.__decodeV11())
201		self.index += 1
202		#@print ':=', result
203		return tuple(result)
204		elif t == u'L':
205		#@print 'Tuple'
206		result = []
207		while self.list[self.index][0] != 'E':
208		result.append(self.__decodeV11())
209		self.index += 1
210		#@print ':=', result
211		return result
212		elif t == u'D':
213		#@print 'Dict'
214		result = {}
215		while self.list[self.index][0] != 'E':
216		key = self.__decodeV11()
217		value = self.__decodeV11()
218		result[key] = value
219		self.index += 1
220		#@print ':=', result
221		return result
222		elif t == u'O':
223		#@print 'Dict'
224		str = self.__decodeV11()
225		if str == 'ige.IMarshal.IPacket':
226		result = IPacket()
227		elif str == 'ige.IDataHolder.IDataHolder':
228		result = IDataHolder()
229		else:
230		DecodeException('Unsupported class %s' % str)
231		while self.list[self.index][0] != 'E':
232		key = self.__decodeV11()
233		value = self.__decodeV11()
234		setattr(result, key ,value)
		0 ignored issues – show introduced 2018-06-13 22:14 UTC by Report Bug Copy Issue Report The variable `result` does not seem to be defined for all execution paths. Loading history...
235		self.index += 1
236		#@print ':=', result
237		return result
238		else:
239		raise DecodeException('Cannot handle type <%s>' % t)
240
241		# (de)compress dictionary
242		#try:
243		# from ICompressScheme import compress
244		#except ImportError:
245		compress = {}
246
247		decompress = {}
248
249		for key, value in compress.items():
250		decompress[str(value)] = key
251
252		# statistics
253		import cPickle as pickle
254
255		class Stats:
256		def __init__(self):
257		self.data = {}
258		self.total = 0
259		self.hits = 0
260		self.totalBytes = 0
261		self.savedBytes = 0
262		self.encBytes = 0
263		self.zipBytes = 0
264
265		# load stats TODO remove profiling code
266		# TODO change dir according to config file
267		try:
268		fh = open('var/marshal.stats.data', 'rb')
269		stats = pickle.load(fh)
270		fh.close()
271		except IOError, e:
272		stats = Stats()
273		except EOFError, e:
274		stats = Stats()
275
276		def saveStats(directory):
277		print 'Saving IMarshal statistics'
278		# stats
279		fh = open(os.path.join(directory, 'marshal.stats.data'), 'wb')
		0 ignored issues – show Comprehensibility Best Practice introduced 2018-06-13 22:14 UTC by Report Bug Copy Issue Report The variable `os` does not seem to be defined. Loading history...
280		pickle.dump(stats, fh, 1)
281		fh.close()
282		# various data
283		keys = []
284		for key in stats.data.keys():
285		keys.append((len(key) * stats.data[key],key))
286		keys.sort()
287		keys.reverse()
288		fstats = open(os.path.join(directory, 'marshal.stats'), 'w')
289		fscheme = open(os.path.join(directory, 'marshal.cscheme'), 'w')
290		fpysrc = open(os.path.join(directory, 'marshal.cscheme.py'), 'w')
291		print >> fpysrc, 'compress = {'
292		print >> fstats, '# Summary'
293		print >> fstats, '# Total strings:', stats.total
294		print >> fstats, '# Compressed strings:', stats.hits
295		print >> fstats, '# Uncompressed strings:', stats.total - stats.hits
296		print >> fstats, '# Ratio:', stats.hits / stats.total * 100L, '%'
297		print >> fstats, '# Uncompressed size:', stats.totalBytes
298		print >> fstats, '# Compressed size:', stats.totalBytes - stats.savedBytes
299		print >> fstats, '# Saved bytes:', stats.savedBytes
300		print >> fstats, '# Ratio:', stats.savedBytes / stats.totalBytes * 100L, '%'
301		print >> fstats, '# Encoded pckt bytes total:', stats.encBytes
302		print >> fstats, '# Encoded pckt bytes total (no compression, est.):', stats.encBytes + stats.savedBytes
303		print >> fstats, '# Ratio:', stats.encBytes / (stats.encBytes + stats.savedBytes) * 100L, '%'
304		print >> fstats, '# Encoded pckt bytes total (zipped):', stats.zipBytes
305		print >> fstats, '# Ratio (to compressed):', stats.zipBytes / stats.encBytes * 100L, '%'
306		print >> fstats, '# Ratio (to uncompressed):', stats.zipBytes / (stats.encBytes + stats.savedBytes)* 100L , '%'
307		print >> fstats, '# total bytes,number of items,string'
308		index = 0
309		for key in keys:
310		count, name = key
311		print >> fstats, '%d,%d,%s' % (count, stats.data[name], name)
312		code = makeCode(index)
313		# include in scheme when there is save in bytes
314		if len(code) < len(name):
315		print >> fscheme, code, name
316		print >> fpysrc, " '%s' : '%s'," % (name, code)
317		index += 1
318		print >>fpysrc, '}'
319		fstats.close()
320		fscheme.close()
321		fpysrc.close()
322
323		codeChars = '0123456789abcdefghjiklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
324
325		def makeCode(index):
326		if index < len(codeChars):
327		return codeChars[index]
328		elif index / len(codeChars) - 1 < len(codeChars):
329		return '%s%s' % (
330		codeChars[index / len(codeChars) - 1],
331		codeChars[index % len(codeChars)]
332		)
333		else:
334		return None
335
336		# testing only
337		if __name__ == '__main__':
338
339		packet = IPacket()
340		packet.sid = '0123456789'
341		packet.method = 'test'
342		packet.params = { 'name':u'Corvus', 'componentOf':1001, 'rules':[1,2], 'isA': (1,2) }
343		marshal = IMarshal()
344
345		str = marshal.encode(packet)
346
347		print repr(str)
348		print len(str)
349		packet = marshal.decode(str)
350		print packet.params
351
352		import pprint
353		pprint.pprint(packet.params)
354
355

ospaceteam / outerspace

Pull Request — master (#192)

ige.IMarshal.IMarshal.encode() A

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