ArrayObjectReader.condition() - Code Metrics - Inspection of "Merge pull request #3612 from StackStorm/more_v2.3..." - Plexxi/st2 - Measure and Improve Code Quality continuously with Scrutinizer

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Push — plexxi-v2.3.2 ( 5d46fe )

unknown

created 2017-08-22 17:03 UTC

ArrayObjectReader.condition() A

↳ Parent: ArrayObjectReader

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
c	0
b	0
f	0
dl	0
loc	3
rs	10

# Licensed to the StackStorm, Inc ('StackStorm') 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.

import re

import jsonschema
from jsonschema import Draft3Validator
from prompt_toolkit import prompt
from prompt_toolkit import token
from prompt_toolkit import validation

from st2client.exceptions.operations import OperationFailureException


POSITIVE_BOOLEAN = {'1', 'y', 'yes', 'true'}
NEGATIVE_BOOLEAN = {'0', 'n', 'no', 'nope', 'nah', 'false'}


class ReaderNotImplemented(OperationFailureException):
    pass


class DialogInterrupted(OperationFailureException):
    pass


class MuxValidator(validation.Validator):
    def __init__(self, validators, spec):
        super(MuxValidator, self).__init__()

        self.validators = validators
        self.spec = spec

    def validate(self, document):
        input = document.text


        for validator in self.validators:
            validator(input, self.spec)


class StringReader(object):
    def __init__(self, name, spec, prefix=None, secret=False, **kw):
        self.name = name
        self.spec = spec
        self.prefix = prefix or ''
        self.options = {
            'is_password': secret
        }

        self._construct_description()
        self._construct_template()
        self._construct_validators()

        self.options.update(kw)

    @staticmethod
    def condition(spec):
        return True

    @staticmethod
    def validate(input, spec):

        try:
            jsonschema.validate(input, spec, Draft3Validator)
        except jsonschema.ValidationError as e:
            raise validation.ValidationError(len(input), str(e))

    def read(self):
        message = self.template.format(self.prefix + self.name, **self.spec)
        response = prompt(message, **self.options)

        result = self.spec.get('default', None)

        if response:
            result = self._transform_response(response)

        return result

    def _construct_description(self):
        if 'description' in self.spec:
            def get_bottom_toolbar_tokens(cli):
                return [(token.Token.Toolbar, self.spec['description'])]

            self.options['get_bottom_toolbar_tokens'] = get_bottom_toolbar_tokens

    def _construct_template(self):
        self.template = u'{0}: '

        if 'default' in self.spec:
            self.template = u'{0} [{default}]: '

    def _construct_validators(self):
        self.options['validator'] = MuxValidator([self.validate], self.spec)

    def _transform_response(self, response):
        return response


class BooleanReader(StringReader):
    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'boolean'

    @staticmethod
    def validate(input, spec):

        if not input and (not spec.get('required', None) or spec.get('default', None)):
            return

        if input.lower() not in POSITIVE_BOOLEAN | NEGATIVE_BOOLEAN:
            raise validation.ValidationError(len(input),
                                             'Does not look like boolean. Pick from [%s]'
                                             % ', '.join(POSITIVE_BOOLEAN | NEGATIVE_BOOLEAN))

    def _construct_template(self):
        self.template = u'{0} (boolean)'

        if 'default' in self.spec:
            self.template += u' [{}]: '.format(self.spec.get('default') and 'y' or 'n')
        else:
            self.template += u': '

    def _transform_response(self, response):
        if response.lower() in POSITIVE_BOOLEAN:
            return True
        if response.lower() in NEGATIVE_BOOLEAN:
            return False

        # Hopefully, it will never happen
        raise OperationFailureException('Response neither positive no negative. '
                                        'Value have not been properly validated.')


class NumberReader(StringReader):
    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'number'

    @staticmethod
    def validate(input, spec):

        if input:
            try:
                input = float(input)
            except ValueError as e:
                raise validation.ValidationError(len(input), str(e))

            super(NumberReader, NumberReader).validate(input, spec)

    def _construct_template(self):
        self.template = u'{0} (float)'

        if 'default' in self.spec:
            self.template += u' [{default}]: '.format(default=self.spec.get('default'))
        else:
            self.template += u': '

    def _transform_response(self, response):
        return float(response)


class IntegerReader(StringReader):
    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'integer'

    @staticmethod
    def validate(input, spec):

        if input:
            try:
                input = int(input)
            except ValueError as e:
                raise validation.ValidationError(len(input), str(e))

            super(IntegerReader, IntegerReader).validate(input, spec)

    def _construct_template(self):
        self.template = u'{0} (integer)'

        if 'default' in self.spec:
            self.template += u' [{default}]: '.format(default=self.spec.get('default'))
        else:
            self.template += u': '

    def _transform_response(self, response):
        return int(response)


class SecretStringReader(StringReader):
    def __init__(self, *args, **kwargs):
        super(SecretStringReader, self).__init__(*args, secret=True, **kwargs)

    @staticmethod
    def condition(spec):
        return spec.get('secret', None)

    def _construct_template(self):
        self.template = u'{0} (secret)'

        if 'default' in self.spec:
            self.template += u' [{default}]: '.format(default=self.spec.get('default'))
        else:
            self.template += u': '


class EnumReader(StringReader):
    @staticmethod
    def condition(spec):
        return spec.get('enum', None)

    @staticmethod
    def validate(input, spec):

        if not input and (not spec.get('required', None) or spec.get('default', None)):
            return

        if not input.isdigit():
            raise validation.ValidationError(len(input), 'Not a number')

        enum = spec.get('enum')
        try:
            enum[int(input)]
        except IndexError:
            raise validation.ValidationError(len(input), 'Out of bounds')

    def _construct_template(self):
        self.template = u'{0}: '

        enum = self.spec.get('enum')
        for index, value in enumerate(enum):
            self.template += u'\n {} - {}'.format(index, value)

        num_options = len(enum)
        more = ''
        if num_options > 3:
            num_options = 3
            more = '...'
        options = [str(i) for i in range(0, num_options)]
        self.template += u'\nChoose from {}{}'.format(', '.join(options), more)

        if 'default' in self.spec:
            self.template += u' [{}]: '.format(enum.index(self.spec.get('default')))
        else:
            self.template += u': '

    def _transform_response(self, response):
        return self.spec.get('enum')[int(response)]


class ObjectReader(StringReader):

    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'object'

    def read(self):
        prefix = u'{}.'.format(self.name)

        result = InteractiveForm(self.spec.get('properties', {}),
                                 prefix=prefix, reraise=True).initiate_dialog()

        return result


class ArrayReader(StringReader):
    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'array'

    @staticmethod
    def validate(input, spec):

        if not input and (not spec.get('required', None) or spec.get('default', None)):
            return

        for m in re.finditer(r'[^, ]+', input):
            index, item = m.start(), m.group()
            try:
                StringReader.validate(item, spec.get('items', {}))
            except validation.ValidationError as e:
                raise validation.ValidationError(index, str(e))

    def read(self):
        item_type = self.spec.get('items', {}).get('type', 'string')

        if item_type not in ['string', 'integer', 'number', 'boolean']:
            message = 'Interactive mode does not support arrays of %s type yet' % item_type
            raise ReaderNotImplemented(message)

        result = super(ArrayReader, self).read()

        return result

    def _construct_template(self):
        self.template = u'{0} (comma-separated list)'

        if 'default' in self.spec:
            self.template += u' [{default}]: '.format(default=','.join(self.spec.get('default')))
        else:
            self.template += u': '

    def _transform_response(self, response):
        return [item.strip() for item in response.split(',')]


class ArrayObjectReader(StringReader):
    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'array' and spec.get('items', {}).get('type') == 'object'

    def read(self):
        results = []
        properties = self.spec.get('items', {}).get('properties', {})
        message = '~~~ Would you like to add another item to  "%s" array / list?' % self.name

        is_continue = True
        index = 0
        while is_continue:
            prefix = u'{name}[{index}].'.format(name=self.name, index=index)
            results.append(InteractiveForm(properties,
                                           prefix=prefix,
                                           reraise=True).initiate_dialog())

            index += 1
            if Question(message, {'default': 'y'}).read() != 'y':
                is_continue = False

        return results


class ArrayEnumReader(EnumReader):
    def __init__(self, name, spec, prefix=None):
        self.items = spec.get('items', {})

        super(ArrayEnumReader, self).__init__(name, spec, prefix)

    @staticmethod
    def condition(spec):
        return spec.get('type', None) == 'array' and 'enum' in spec.get('items', {})

    @staticmethod
    def validate(input, spec):

        if not input and (not spec.get('required', None) or spec.get('default', None)):
            return

        for m in re.finditer(r'[^, ]+', input):
            index, item = m.start(), m.group()
            try:
                EnumReader.validate(item, spec.get('items', {}))
            except validation.ValidationError as e:
                raise validation.ValidationError(index, str(e))

    def _construct_template(self):
        self.template = u'{0}: '

        enum = self.items.get('enum')
        for index, value in enumerate(enum):
            self.template += u'\n {} - {}'.format(index, value)

        num_options = len(enum)
        more = ''
        if num_options > 3:
            num_options = 3
            more = '...'
        options = [str(i) for i in range(0, num_options)]
        self.template += u'\nChoose from {}{}'.format(', '.join(options), more)

        if 'default' in self.spec:
            default_choises = [str(enum.index(item)) for item in self.spec.get('default')]
            self.template += u' [{}]: '.format(', '.join(default_choises))
        else:
            self.template += u': '

    def _transform_response(self, response):
        result = []

        for i in (item.strip() for item in response.split(',')):
            if i:
                result.append(self.items.get('enum')[int(i)])

        return result


class InteractiveForm(object):
    readers = [
        EnumReader,
        BooleanReader,
        NumberReader,
        IntegerReader,
        ObjectReader,
        ArrayEnumReader,
        ArrayObjectReader,
        ArrayReader,
        SecretStringReader,
        StringReader
    ]

    def __init__(self, schema, prefix=None, reraise=False):
        self.schema = schema
        self.prefix = prefix
        self.reraise = reraise

    def initiate_dialog(self):
        result = {}

        try:
            for field in self.schema:
                try:
                    result[field] = self._read_field(field)
                except ReaderNotImplemented as e:
                    print('%s. Skipping...' % str(e))
        except DialogInterrupted:
            if self.reraise:
                raise
            print('Dialog interrupted.')

        return result

    def _read_field(self, field):
        spec = self.schema[field]

        reader = None

        for Reader in self.readers:
            if Reader.condition(spec):
                reader = Reader(field, spec, prefix=self.prefix)
                break

        if not reader:
            raise ReaderNotImplemented('No reader for the field spec')

        try:
            return reader.read()
        except KeyboardInterrupt:
            raise DialogInterrupted()


class Question(StringReader):
    def __init__(self, message, spec=None):
        if not spec:
            spec = {}

        super(Question, self).__init__(message, spec)


1			# Licensed to the StackStorm, Inc ('StackStorm') under one or more
2			# contributor license agreements. See the NOTICE file distributed with
3			# this work for additional information regarding copyright ownership.
4			# The ASF licenses this file to You under the Apache License, Version 2.0
5			# (the "License"); you may not use this file except in compliance with
6			# the License. You may obtain a copy of the License at
7			#
8			# http://www.apache.org/licenses/LICENSE-2.0
9			#
10			# Unless required by applicable law or agreed to in writing, software
11			# distributed under the License is distributed on an "AS IS" BASIS,
12			# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13			# See the License for the specific language governing permissions and
14			# limitations under the License.
15
16			import re
17
18			import jsonschema
19			from jsonschema import Draft3Validator
20			from prompt_toolkit import prompt
21			from prompt_toolkit import token
22			from prompt_toolkit import validation
23
24			from st2client.exceptions.operations import OperationFailureException
25
26
27			POSITIVE_BOOLEAN = {'1', 'y', 'yes', 'true'}
28			NEGATIVE_BOOLEAN = {'0', 'n', 'no', 'nope', 'nah', 'false'}
29
30
31			class ReaderNotImplemented(OperationFailureException):
32			pass
33
34
35			class DialogInterrupted(OperationFailureException):
36			pass
37
38
39			class MuxValidator(validation.Validator):
40			def __init__(self, validators, spec):
41			super(MuxValidator, self).__init__()
42
43			self.validators = validators
44			self.spec = spec
45
46			def validate(self, document):
47			input = document.text
			0 ignored issues – show Bug Best Practice introduced 2016-10-28 05:25 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
48
49			for validator in self.validators:
50			validator(input, self.spec)
51
52
53			class StringReader(object):
54			def __init__(self, name, spec, prefix=None, secret=False, **kw):
55			self.name = name
56			self.spec = spec
57			self.prefix = prefix or ''
58			self.options = {
59			'is_password': secret
60			}
61
62			self._construct_description()
63			self._construct_template()
64			self._construct_validators()
65
66			self.options.update(kw)
67
68			@staticmethod
69			def condition(spec):
70			return True
71
72			@staticmethod
73			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2017-04-18 08:10 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
74			try:
75			jsonschema.validate(input, spec, Draft3Validator)
76			except jsonschema.ValidationError as e:
77			raise validation.ValidationError(len(input), str(e))
78
79			def read(self):
80			message = self.template.format(self.prefix + self.name, **self.spec)
81			response = prompt(message, **self.options)
82
83			result = self.spec.get('default', None)
84
85			if response:
86			result = self._transform_response(response)
87
88			return result
89
90			def _construct_description(self):
91			if 'description' in self.spec:
92			def get_bottom_toolbar_tokens(cli):
93			return [(token.Token.Toolbar, self.spec['description'])]
94
95			self.options['get_bottom_toolbar_tokens'] = get_bottom_toolbar_tokens
96
97			def _construct_template(self):
98			self.template = u'{0}: '
99
100			if 'default' in self.spec:
101			self.template = u'{0} [{default}]: '
102
103			def _construct_validators(self):
104			self.options['validator'] = MuxValidator([self.validate], self.spec)
105
106			def _transform_response(self, response):
107			return response
108
109
110			class BooleanReader(StringReader):
111			@staticmethod
112			def condition(spec):
113			return spec.get('type', None) == 'boolean'
114
115			@staticmethod
116			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2017-04-18 09:25 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
117			if not input and (not spec.get('required', None) or spec.get('default', None)):
118			return
119
120			if input.lower() not in POSITIVE_BOOLEAN \| NEGATIVE_BOOLEAN:
121			raise validation.ValidationError(len(input),
122			'Does not look like boolean. Pick from [%s]'
123			% ', '.join(POSITIVE_BOOLEAN \| NEGATIVE_BOOLEAN))
124
125			def _construct_template(self):
126			self.template = u'{0} (boolean)'
127
128			if 'default' in self.spec:
129			self.template += u' [{}]: '.format(self.spec.get('default') and 'y' or 'n')
130			else:
131			self.template += u': '
132
133			def _transform_response(self, response):
134			if response.lower() in POSITIVE_BOOLEAN:
135			return True
136			if response.lower() in NEGATIVE_BOOLEAN:
137			return False
138
139			# Hopefully, it will never happen
140			raise OperationFailureException('Response neither positive no negative. '
141			'Value have not been properly validated.')
142
143
144			class NumberReader(StringReader):
145			@staticmethod
146			def condition(spec):
147			return spec.get('type', None) == 'number'
148
149			@staticmethod
150			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2017-04-18 08:10 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
151			if input:
152			try:
153			input = float(input)
154			except ValueError as e:
155			raise validation.ValidationError(len(input), str(e))
156
157			super(NumberReader, NumberReader).validate(input, spec)
158
159			def _construct_template(self):
160			self.template = u'{0} (float)'
161
162			if 'default' in self.spec:
163			self.template += u' [{default}]: '.format(default=self.spec.get('default'))
164			else:
165			self.template += u': '
166
167			def _transform_response(self, response):
168			return float(response)
169
170
171			class IntegerReader(StringReader):
172			@staticmethod
173			def condition(spec):
174			return spec.get('type', None) == 'integer'
175
176			@staticmethod
177			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2017-04-18 09:25 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
178			if input:
179			try:
180			input = int(input)
181			except ValueError as e:
182			raise validation.ValidationError(len(input), str(e))
183
184			super(IntegerReader, IntegerReader).validate(input, spec)
185
186			def _construct_template(self):
187			self.template = u'{0} (integer)'
188
189			if 'default' in self.spec:
190			self.template += u' [{default}]: '.format(default=self.spec.get('default'))
191			else:
192			self.template += u': '
193
194			def _transform_response(self, response):
195			return int(response)
196
197
198			class SecretStringReader(StringReader):
199			def __init__(self, args, *kwargs):
200			super(SecretStringReader, self).__init__(args, secret=True, *kwargs)
201
202			@staticmethod
203			def condition(spec):
204			return spec.get('secret', None)
205
206			def _construct_template(self):
207			self.template = u'{0} (secret)'
208
209			if 'default' in self.spec:
210			self.template += u' [{default}]: '.format(default=self.spec.get('default'))
211			else:
212			self.template += u': '
213
214
215			class EnumReader(StringReader):
216			@staticmethod
217			def condition(spec):
218			return spec.get('enum', None)
219
220			@staticmethod
221			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2017-04-18 09:25 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
222			if not input and (not spec.get('required', None) or spec.get('default', None)):
223			return
224
225			if not input.isdigit():
226			raise validation.ValidationError(len(input), 'Not a number')
227
228			enum = spec.get('enum')
229			try:
230			enum[int(input)]
231			except IndexError:
232			raise validation.ValidationError(len(input), 'Out of bounds')
233
234			def _construct_template(self):
235			self.template = u'{0}: '
236
237			enum = self.spec.get('enum')
238			for index, value in enumerate(enum):
239			self.template += u'\n {} - {}'.format(index, value)
240
241			num_options = len(enum)
242			more = ''
243			if num_options > 3:
244			num_options = 3
245			more = '...'
246			options = [str(i) for i in range(0, num_options)]
247			self.template += u'\nChoose from {}{}'.format(', '.join(options), more)
248
249			if 'default' in self.spec:
250			self.template += u' [{}]: '.format(enum.index(self.spec.get('default')))
251			else:
252			self.template += u': '
253
254			def _transform_response(self, response):
255			return self.spec.get('enum')[int(response)]
256
257
258			class ObjectReader(StringReader):
259
260			@staticmethod
261			def condition(spec):
262			return spec.get('type', None) == 'object'
263
264			def read(self):
265			prefix = u'{}.'.format(self.name)
266
267			result = InteractiveForm(self.spec.get('properties', {}),
268			prefix=prefix, reraise=True).initiate_dialog()
269
270			return result
271
272
273			class ArrayReader(StringReader):
274			@staticmethod
275			def condition(spec):
276			return spec.get('type', None) == 'array'
277
278			@staticmethod
279			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2017-04-18 09:25 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
280			if not input and (not spec.get('required', None) or spec.get('default', None)):
281			return
282
283			for m in re.finditer(r'[^, ]+', input):
284			index, item = m.start(), m.group()
285			try:
286			StringReader.validate(item, spec.get('items', {}))
287			except validation.ValidationError as e:
288			raise validation.ValidationError(index, str(e))
289
290			def read(self):
291			item_type = self.spec.get('items', {}).get('type', 'string')
292
293			if item_type not in ['string', 'integer', 'number', 'boolean']:
294			message = 'Interactive mode does not support arrays of %s type yet' % item_type
295			raise ReaderNotImplemented(message)
296
297			result = super(ArrayReader, self).read()
298
299			return result
300
301			def _construct_template(self):
302			self.template = u'{0} (comma-separated list)'
303
304			if 'default' in self.spec:
305			self.template += u' [{default}]: '.format(default=','.join(self.spec.get('default')))
306			else:
307			self.template += u': '
308
309			def _transform_response(self, response):
310			return [item.strip() for item in response.split(',')]
311
312
313			class ArrayObjectReader(StringReader):
314			@staticmethod
315			def condition(spec):
316			return spec.get('type', None) == 'array' and spec.get('items', {}).get('type') == 'object'
317
318			def read(self):
319			results = []
320			properties = self.spec.get('items', {}).get('properties', {})
321			message = '~~~ Would you like to add another item to "%s" array / list?' % self.name
322
323			is_continue = True
324			index = 0
325			while is_continue:
326			prefix = u'{name}[{index}].'.format(name=self.name, index=index)
327			results.append(InteractiveForm(properties,
328			prefix=prefix,
329			reraise=True).initiate_dialog())
330
331			index += 1
332			if Question(message, {'default': 'y'}).read() != 'y':
333			is_continue = False
334
335			return results
336
337
338			class ArrayEnumReader(EnumReader):
339			def __init__(self, name, spec, prefix=None):
340			self.items = spec.get('items', {})
341
342			super(ArrayEnumReader, self).__init__(name, spec, prefix)
343
344			@staticmethod
345			def condition(spec):
346			return spec.get('type', None) == 'array' and 'enum' in spec.get('items', {})
347
348			@staticmethod
349			def validate(input, spec):
			0 ignored issues – show Bug Best Practice introduced 2016-11-04 10:06 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `input`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history...
350			if not input and (not spec.get('required', None) or spec.get('default', None)):
351			return
352
353			for m in re.finditer(r'[^, ]+', input):
354			index, item = m.start(), m.group()
355			try:
356			EnumReader.validate(item, spec.get('items', {}))
357			except validation.ValidationError as e:
358			raise validation.ValidationError(index, str(e))
359
360			def _construct_template(self):
361			self.template = u'{0}: '
362
363			enum = self.items.get('enum')
364			for index, value in enumerate(enum):
365			self.template += u'\n {} - {}'.format(index, value)
366
367			num_options = len(enum)
368			more = ''
369			if num_options > 3:
370			num_options = 3
371			more = '...'
372			options = [str(i) for i in range(0, num_options)]
373			self.template += u'\nChoose from {}{}'.format(', '.join(options), more)
374
375			if 'default' in self.spec:
376			default_choises = [str(enum.index(item)) for item in self.spec.get('default')]
377			self.template += u' [{}]: '.format(', '.join(default_choises))
378			else:
379			self.template += u': '
380
381			def _transform_response(self, response):
382			result = []
383
384			for i in (item.strip() for item in response.split(',')):
385			if i:
386			result.append(self.items.get('enum')[int(i)])
387
388			return result
389
390
391			class InteractiveForm(object):
392			readers = [
393			EnumReader,
394			BooleanReader,
395			NumberReader,
396			IntegerReader,
397			ObjectReader,
398			ArrayEnumReader,
399			ArrayObjectReader,
400			ArrayReader,
401			SecretStringReader,
402			StringReader
403			]
404
405			def __init__(self, schema, prefix=None, reraise=False):
406			self.schema = schema
407			self.prefix = prefix
408			self.reraise = reraise
409
410			def initiate_dialog(self):
411			result = {}
412
413			try:
414			for field in self.schema:
415			try:
416			result[field] = self._read_field(field)
417			except ReaderNotImplemented as e:
418			print('%s. Skipping...' % str(e))
419			except DialogInterrupted:
420			if self.reraise:
421			raise
422			print('Dialog interrupted.')
423
424			return result
425
426			def _read_field(self, field):
427			spec = self.schema[field]
428
429			reader = None
430
431			for Reader in self.readers:
432			if Reader.condition(spec):
433			reader = Reader(field, spec, prefix=self.prefix)
434			break
435
436			if not reader:
437			raise ReaderNotImplemented('No reader for the field spec')
438
439			try:
440			return reader.read()
441			except KeyboardInterrupt:
442			raise DialogInterrupted()
443
444
445			class Question(StringReader):
446			def __init__(self, message, spec=None):
447			if not spec:
448			spec = {}
449
450			super(Question, self).__init__(message, spec)
451

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ArrayObjectReader.condition() A

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