def generate_dasquery(self, uinput, inst, html_error=True):
"""
Check provided input as valid DAS input query.
Returns status and content (either error message or valid DASQuery)
"""
def helper(msg, html_error=None):
"""Helper function which provide error template"""
if not html_error:
return msg
guide = self.templatepage('dbsql_vs_dasql',
operators=', '.join(das_operators()))
page = self.templatepage('das_ambiguous', msg=msg, base=self.base,
guide=guide)
return page
if not uinput:
return 1, helper('No input query')
# Generate DASQuery object, if it fails we catch the exception and
# wrap it for upper layer (web interface)
try:
dasquery = DASQuery(uinput, instance=inst)
except Exception as err:
return 1, helper(das_parser_error(uinput, str(err)), html_error)
fields = dasquery.mongo_query.get('fields', [])
if not fields:
fields = []
spec = dasquery.mongo_query.get('spec', {})
for word in fields+spec.keys():
found = 0
if word in DAS_DB_KEYWORDS:
found = 1
for key in self.daskeys:
if word.find(key) != -1:
found = 1
if not found:
msg = 'Provided input does not contain a valid DAS key'
return 1, helper(msg, html_error)
if isinstance(uinput, dict): # DASQuery w/ {'spec':{'_id:id}}
pass
elif uinput.find('queries') != -1:
pass
elif uinput.find('records') != -1:
pass
else: # normal user DAS query
try:
service_map = dasquery.service_apis_map()
except Exception as exc:
msg = 'Fail to lookup DASQuery service API map'
print msg
print_exc(exc)
return 1, helper(msg, html_error)
if not service_map:
msg = "None of the API's registered in DAS "
msg += "can resolve this query"
return 1, helper(msg, html_error)
return 0, dasquery
def generate_dasquery(self, uinput, inst, html_mode=True, qcache=0):
"""
Check provided input as valid DAS input query.
Returns status and content (either error message or valid DASQuery)
:param uinput: user's input
:param inst: DBS instance
:param html_mode: whether errors shall be output in html
"""
def error_msg(msg, show_kws=False, tmpl='das_ambiguous', **kwargs):
"""
Helper function which renders an error template, default is
das_ambiguous, but can be overriden via tmpl param.
Template has two versions: html and text for CLI.
The template is passed with msg, base, guide, and **kwargs. """
# TODO: this shall be done by inheriting a parent template
# TODO: no header/footer?
guide = self.templatepage('dbsql_vs_dasql',
operators=', '.join(das_operators()))
# render keyword search loader, if needed
kws = ''
if show_kws:
kws = self.templatepage('kwdsearch_via_ajax',
uinput=uinput,
jsonize=jsonize,
url_extend_params_as_dict=url_extend_params_as_dict,
inst=inst or self.dbs_global,
kws_host=self._get_kws_host())
# render the appropriate template (html vs text mode)
page = self.templatepage(tmpl + ('_txt' if not html_mode else ''),
msg=msg, base=self.base, guide=guide,
kws_enabled=show_kws, kws=kws, **kwargs)
return page
if not uinput:
return 1, error_msg('No input query')
# Generate a DASQuery object, if it fails we catch the exception and
# wrap it for upper layer (web interface)
try:
dasquery = DASQuery(uinput, instance=inst, qcache=qcache)
except WildcardMultipleMatchesException as err:
das_parser_error(uinput, str(err).replace('\n', ''))
# TODO: hints could be shown here also, but it makes no sense, as
# they are shown only when no matches are found
return 1, error_msg(str(err), tmpl='das_wildcard_err',
suggest=err.options.values,
url_extend_params=url_extend_params)
except WildcardMatchingException as err:
das_parser_error(uinput, str(type(err)) + ' ' + str(err))
kwds = {'input':uinput, 'instance':inst}
hints = self.hint_datasets(kwds)
page = error_msg(str(err))
for hint in hints:
page += self.templatepage('hint',
url_extend_params=url_extend_params,
hint=hint, base=self.base, dbs=self.dbs_global)
return 1, page
except Exception as err:
das_parser_error(uinput, str(type(err)) + ' ' + str(err))
# show multiple dataset matches for 1 keyword queries
if hasattr(response, 'dataset_matches_msg'):
return 1, error_msg(response.dataset_matches_msg,
show_kws=self.is_kws_enabled())
# for non Wildcard parsing errors, show the Keyword Search
return 1, error_msg(str(err), show_kws=self.is_kws_enabled())
# DAS query validation
if isinstance(uinput, dict): # DASQuery w/ {'spec':{'_id:id}}
pass
elif uinput.find('queries') != -1:
pass
elif uinput.find('records') != -1:
pass
else: # normal user DAS query
try:
service_map = dasquery.service_apis_map()
except Exception as exc:
msg = 'Fail to obtain service API map for this DASQuery'
print(msg)
print_exc(exc)
return 1, error_msg(msg)
if not service_map:
return 1, error_msg('Unable to resolve the query over the '
'available services: %s' % dasquery)
return 0, dasquery
def generate_dasquery(self, uinput, inst, html_mode=True):
"""
Check provided input as valid DAS input query.
Returns status and content (either error message or valid DASQuery)
:param uinput: user's input
:param inst: DBS instance
:param html_mode: whether errors shall be output in html
"""
def error_msg(msg, show_kws=False, tmpl="das_ambiguous", **kwargs):
"""
Helper function which renders an error template, default is
das_ambiguous, but can be overriden via tmpl param.
Template has two versions: html and text for CLI.
The template is passed with msg, base, guide, and **kwargs. """
guide = self.templatepage("dbsql_vs_dasql", operators=", ".join(das_operators()))
# render keyword search loader, if needed
kws = ""
if show_kws:
kws = self.templatepage(
"kwdsearch_via_ajax", uinput=uinput, inst=inst or self.dbs_global, kws_host=self._get_kws_host()
)
# render the appropriate template (html vs text mode)
page = self.templatepage(
tmpl + ("_txt" if not html_mode else ""),
msg=msg,
base=self.base,
guide=guide,
kws_enabled=show_kws,
kws=kws,
**kwargs
)
return page
if not uinput:
return 1, error_msg("No input query")
# Generate a DASQuery object, if it fails we catch the exception and
# wrap it for upper layer (web interface)
try:
dasquery = DASQuery(uinput, instance=inst)
except WildcardMultipleMatchesException as err:
das_parser_error(uinput, str(err).replace("\n", ""))
return 1, error_msg(str(err), tmpl="das_wildcard_err", suggest=err.options.values)
except WildcardMatchingException as err:
das_parser_error(uinput, str(type(err)) + " " + str(err))
return 1, error_msg(str(err))
except Exception as err:
das_parser_error(uinput, str(type(err)) + " " + str(err))
# show multiple dataset matches for 1 keyword queries
if hasattr(response, "dataset_matches_msg"):
return 1, error_msg(response.dataset_matches_msg, show_kws=self.is_kws_enabled())
# for non Wildcard parsing errors, show the Keyword Search
return 1, error_msg(str(err), show_kws=self.is_kws_enabled())
# DAS query validation
if isinstance(uinput, dict): # DASQuery w/ {'spec':{'_id:id}}
pass
elif uinput.find("queries") != -1:
pass
elif uinput.find("records") != -1:
pass
else: # normal user DAS query
try:
service_map = dasquery.service_apis_map()
except Exception as exc:
msg = "Fail to obtain service API map for this DASQuery"
print msg
print_exc(exc)
return 1, error_msg(msg)
if not service_map:
return 1, error_msg("Unable to resolve the query over the " "available services: %s" % dasquery)
return 0, dasquery
