Project

General

Profile

1 5169 aaronmk
# TNRS
2 4990 aaronmk
3 14540 aaronmk
import json
4 13464 aaronmk
import os.path
5 4990 aaronmk
import re
6
import sys
7
import time
8
import urllib2
9
10 5149 aaronmk
import csvs
11 5107 aaronmk
import exc
12 5120 aaronmk
import profiling
13 4990 aaronmk
import streams
14 5144 aaronmk
import strings
15 4990 aaronmk
16
# Config
17
initial_pause = 0.35 # sec
18
pause_growth_factor = 1.3
19 5125 aaronmk
max_pause = 30*60 # sec; = 30 min; TNRS sometimes freezes for ~10 min
20 4990 aaronmk
assert initial_pause <= max_pause
21 13548 aaronmk
#max_names = 5000 #according to http://tnrs.iplantcollaborative.org/TNRSapp.html
22 13636 aaronmk
max_names = 500 # the maximum above crashes the live and dev TNRS servers
23 4990 aaronmk
24
# Protocol params
25 13464 aaronmk
server = streams.file_get_contents(os.path.dirname(__file__)+"/tnrs.url")
26
#server = 'tnrs.iplantcollaborative.org' # live server
27 13462 aaronmk
url_base = 'http://'+server+'/tnrsdemo/'
28 4990 aaronmk
url = url_base+'search'
29
initial_headers = {
30
    'Content-Type': 'text/x-gwt-rpc; charset=utf-8',
31
    'X-GWT-Module-Base': url_base,
32
    'X-GWT-Permutation': '574AA16D15D917C7704646FD92AFF6B3',
33
}
34
submission_request_template = ('7|0|7|'+url_base+
35 9912 aaronmk
'|1E87C78041CEFBF0992F46BDF84D7D60|org.iplantc.tnrs.demo.client.SearchService|\
36 13544 aaronmk
doSearch|java.lang.String/2004016611|{"sources":"gcc,tpl,tropicos,usda", \
37 9912 aaronmk
"names":"[names]", "type":"matching", "taxonomic":"true", \
38
"classification":"tropicos", "match_to_rank":"true"}|0.05|1|2|3|4|2|5|5|6|7|')
39 4990 aaronmk
submission_response_pattern = r'^//OK\[1,\["(\w+)"\],0,7\]$'
40
retrieval_request_template = ('7|0|15|'+url_base+
41
'|1E87C78041CEFBF0992F46BDF84D7D60|org.iplantc.tnrs.demo.client.SearchService\
42
|getRemoteData|com.extjs.gxt.ui.client.data.PagingLoadConfig|\
43
java.lang.String/2004016611|com.extjs.gxt.ui.client.data.BasePagingLoadConfig/\
44
2011366567|com.extjs.gxt.ui.client.data.RpcMap/3441186752|sortField|sortDir|\
45
com.extjs.gxt.ui.client.Style$SortDir/640452531|offset|java.lang.Integer/\
46
3438268394|limit|{"email":"tnrs@lka5jjs.orv", "key":"[key]", \
47 13597 aaronmk
"taxonomic_constraint":"true", "source_sorting":"true", "first":"false"}\
48 4990 aaronmk
|1|2|3|4|2|5|6|7|0|1|8|4|9|0|10|11|0|12|13|0|14|13|100|15|')
49 13436 aaronmk
	# taxonomic_constraint (Constrain by Higher Taxonomy): selects lower ranks
50
	#  only from within the matched higher ranks. must be turned on, to ensure
51
	#  that higher ranks are always authoritative.
52 14470 aaronmk
	# source_sorting (Constrain by Source): always puts matches in the order of
53
	#  the sources, regardless of match score. should never be turned on,
54
	#  because it selects worse matches instead of better ones. *however*, since
55
	#  this is currently broken and always forced on, we turn it on so that the
56
	#  download settings reflect what TNRS actually used.
57 4990 aaronmk
retrieval_response_pattern = '^//OK\[.*?\["com.extjs.gxt.ui.client.data.\
58
BasePagingLoadResult/496878394","java.util.ArrayList/4159755760","org.iplantc.\
59
tnrs.demo.shared.BeanTNRSEntry/1039545748",".*"\],0,7\]$'
60
retrieval_response_info_pattern = r'(?ms).*^Set-Cookie: JSESSIONID=(\w+);'
61
download_request_template = ('7|0|6|'+url_base+
62
'|1E87C78041CEFBF0992F46BDF84D7D60|org.iplantc.tnrs.demo.client.SearchService|\
63
downloadRemoteResults|java.lang.String/2004016611|{"name":"tnrs_results.txt", \
64 13855 aaronmk
"mode":"All", "type":"Detailed", "encoding":"utf8", "dirty":"false", \
65 9911 aaronmk
"sources":"false", "taxonomic":"true", "email":"tnrs@lka5jjs.orv", \
66 4990 aaronmk
"key":"[key]"}|1|2|3|4|1|5|6|')
67 13856 aaronmk
	# dirty:
68
	#  when on, sometimes marks multiple names as Selected. must be turned *off*
69 13860 aaronmk
	#  so that only one name is marked as Selected. note that this actually used
70
	#  to be on in the web app (see r9910, 2013-6-18), but does not appear to be
71
	#  needed (the source_sorting bug alluded to in r9910 is not fixed by
72
	#  enabling the dirty setting).
73 4990 aaronmk
download_response_pattern = '^//OK\[1,\["(.*)"\],0,7\]$'
74
download_url_suffix = '&name=tnrs_results.txt&encoding=utf8'
75 14596 aaronmk
tsv_to_json_col_map = {
76
	'Name_matched_author': 'Canonical_author',
77
	'Accepted_name_species': 'Accepted_species',
78
	'Accepted_name_family': 'Accepted_family',
79
	'Selected': 'selected',
80
}
81 4990 aaronmk
82 5083 aaronmk
class InvalidResponse(Exception): pass
83
84 5144 aaronmk
def gwt_encode(str_):
85 14539 aaronmk
    # embedded strs within GWT sections additionally have " JSON-escaped
86 5144 aaronmk
    return strings.esc_quotes(strings.json_encode(str_), '|', quote_esc='\!')
87 4990 aaronmk
88 14539 aaronmk
def gwt_decode(str_):
89
    # embedded strs within GWT sections additionally have " JSON-escaped
90
    return strings.json_decode(strings.unesc_quotes(str_, '|', quote_esc='\!'))
91
92 5149 aaronmk
def make_spliced_decode_map(decode_map):
93
    return [(r'(?: |(?<=\t)|^)'+re.escape(from_.strip())+r'(?: |(?=\t)|$)',
94
        strings.regexp_repl_esc(to)) for from_, to in decode_map]
95
96 5154 aaronmk
padding = ' !pad ' # prepend to empty and whitespace-only strings
97 5149 aaronmk
encode_map = [
98 5167 aaronmk
    ('!', ' !exc '), # our escape char
99
    ('\t', ' !tab '), # TNRS replaces with " "
100
    ('\n', ' !nl '), # used to separate multiple names
101
    ('\r', ' !cr '), # used to separate multiple names
102 5168 aaronmk
    ('"', ' !quo '), # TNRS removes it when at the beginning or end
103 5167 aaronmk
    ('%', ' !pct '), # TNRS URL-decodes it in matched fields
104 5168 aaronmk
    ("'", ' !apo '), # TNRS removes it when at the beginning or end
105 5167 aaronmk
    (';', ' !sem '), # changes TNRS response format
106
    ('\\', ' !bsl '), # TNRS removes it
107 5165 aaronmk
    ('_', ' !und '), # TNRS replaces with " "
108 5171 aaronmk
    ('­', ' !sub '), # TNRS removes it
109 5169 aaronmk
    ('×', ' !mul '), # TNRS replaces with "x"
110 5149 aaronmk
]
111
decode_map = strings.flip_map(encode_map)
112 5154 aaronmk
decode_map.append((padding, ''))
113 5149 aaronmk
spliced_decode_map = make_spliced_decode_map(decode_map)
114
115 5154 aaronmk
def encode(str_):
116
    str_ = strings.replace_all(encode_map, str_)
117
    # Empty and whitespace-only strings are ignored by TNRS (no response row)
118
    if str_.strip() == '': str_ = padding+str_
119
    return str_
120 5149 aaronmk
121
def decode(str_): return strings.replace_all_re(spliced_decode_map, str_)
122
123
decode_for_tsv_map = make_spliced_decode_map([(from_, strings.replace_all(
124
    csvs.tsv_encode_map, to)) for from_, to in decode_map])
125
126
def decode_for_tsv(str_):
127
    return strings.replace_all_re(decode_for_tsv_map, str_)
128
129
class TnrsOutputStream(streams.FilterStream):
130
    '''Decodes a TNRS response whose names were encoded with encode()'''
131
    def __init__(self, stream):
132
        streams.FilterStream.__init__(self, decode_for_tsv, stream)
133
134 5106 aaronmk
def parse_response(name, pattern, str_, response, response_info):
135
    match = re.match(pattern, str_)
136
    if not match:
137
        raise InvalidResponse('Invalid '+name+' response:\n'+response_info+'\n'
138
            +response)
139 4990 aaronmk
    return match.groups()
140
141 14578 aaronmk
export_cols = None
142
143 14540 aaronmk
def single_tnrs_request(names, debug=False, cumulative_profiler=None,
144
    use_tnrs_export=True):
145 5127 aaronmk
    '''
146
    Note that names containing only whitespace characters (after gwt_encode())
147
    are ignored by TNRS and do not receive a response row. Thus, you should
148
    always match up the Name_submitted returned by TNRS with the actual
149
    submitted name to determine the corresponding TNRS response row.
150 14540 aaronmk
151
    @param use_tnrs_export whether to use TNRS's TSV export feature, which
152
        currently returns incorrect selected matches (vegpath.org/issues/943)
153 5127 aaronmk
    '''
154 14578 aaronmk
    global export_cols
155
156 5121 aaronmk
    name_ct = len(names)
157
    assert name_ct <= max_names
158 14576 aaronmk
    assert name_ct >= 1 # with no names, TNRS hangs indefinitely
159 4990 aaronmk
160
    # Logging
161
    def debug_log(label, str_=''):
162
        if debug: sys.stderr.write('\n'+label+':\n'+str_+'\n')
163
164 14578 aaronmk
    if not use_tnrs_export and export_cols == None: # need export_cols
165
        debug_log('fetching export columns')
166
        export_cols = csvs.header(single_tnrs_request([''], debug,
167
            use_tnrs_export=True)) # need at least 1 name
168 14596 aaronmk
        debug_log('TSV export columns', strings.urepr(export_cols))
169
        json_cols = [tsv_to_json_col_map.get(c, c) for c in export_cols]
170
        debug_log('JSON columns', strings.urepr(json_cols))
171 14578 aaronmk
172 4990 aaronmk
    ## HTTP
173 5119 aaronmk
    headers = initial_headers.copy() # don't modify global constant!
174 4990 aaronmk
175 5005 aaronmk
    def do_request(request):
176 13857 aaronmk
        request_obj = urllib2.Request(url, request, headers)
177 13859 aaronmk
        debug_log('request URL', str(url))
178 13857 aaronmk
        debug_log('request info', str(request_obj.header_items()))
179
        debug_log('request str', str(request_obj.get_data()))
180
        response = urllib2.urlopen(request_obj)
181 4990 aaronmk
        response_str = streams.read_all(response)
182
        response_info = str(response.info())
183
        debug_log('response info', response_info)
184
        debug_log('response str', response_str)
185
        return response_str, response_info
186
187
    def do_repeated_request(request):
188
        pause = initial_pause
189
        total_pause = 0
190
        while True:
191
            total_pause += pause
192
            if total_pause > max_pause: raise # error is not temporary
193
            debug_log('total_pause', str(total_pause)+'s')
194
            time.sleep(pause) # wait for job to complete
195
196
            try: return do_request(request)
197
            except urllib2.HTTPError: pass # try again
198
            pause *= pause_growth_factor
199
200 5120 aaronmk
    profiler = profiling.ItersProfiler(start_now=True, iter_text='name')
201
    try:
202
        debug_log('Submit')
203 5121 aaronmk
        request = submission_request_template.replace('[names]',
204 5150 aaronmk
            gwt_encode('\n'.join(map(encode, names))))
205 5120 aaronmk
        response, response_info = do_request(request)
206 5151 aaronmk
        key, = parse_response('submission', submission_response_pattern,
207
            response, response, response_info)
208 5120 aaronmk
        debug_log('key', key)
209
        key_enc = gwt_encode(key)
210
211
        debug_log('Retrieve')
212
        request = retrieval_request_template.replace('[key]', key_enc)
213
        response, response_info = do_repeated_request(request)
214 5151 aaronmk
        parse_response('retrieval', retrieval_response_pattern, response,
215
            response, response_info)
216
        session_id, = parse_response('retrieval info',
217
            retrieval_response_info_pattern, response_info, response,
218 5120 aaronmk
            response_info)
219
        debug_log('session_id', session_id)
220
        headers['Cookie'] = 'JSESSIONID='+session_id
221
222 14511 aaronmk
        # the output of the retrieve step is unusable because the array does not
223
        # contain all the columns, contains no column names, and has different
224
        # lengths depending on the taxonomic ranks present in the provided taxon
225
        # name. the extra download step is therefore necessary.
226 5120 aaronmk
227 14540 aaronmk
        if use_tnrs_export:
228
            debug_log('Prepare download')
229
            request = download_request_template.replace('[key]', key_enc)
230
            response, response_info = do_request(request)
231
            csv_url, = parse_response('download', download_response_pattern,
232
                response, response, response_info)
233
            csv_url += download_url_suffix
234
            debug_log('csv_url', csv_url)
235
236
            debug_log('Download')
237
            request_obj = urllib2.Request(csv_url)
238
            debug_log('request URL', str(csv_url))
239
            debug_log('request info', str(request_obj.header_items()))
240
            debug_log('request str', str(request_obj.get_data()))
241
            response = urllib2.urlopen(request_obj)
242
            response_info = str(response.info())
243
            debug_log('response info', response_info)
244
            return TnrsOutputStream(response)
245
        else:
246
            debug_log('Expand')
247
            request = ('7|0|6|http://tnrs.iplantcollaborative.org/tnrsdemo/|\
248
1E87C78041CEFBF0992F46BDF84D7D60|org.iplantc.tnrs.demo.client.SearchService|\
249
requestGroupMembers|java.lang.String/2004016611|{"group":"0", \
250
"email":"tnrs@lka5jjs.orv", "key":"[key]", "source_sorting":"false", \
251
"taxonomic_constraint":"false"}|1|2|3|4|1|5|6|'.replace('[key]', key_enc))
252
            response, response_info = do_request(request)
253
            data_gwt, = parse_response('expand', r'^//OK\[1,\["(.*)"\],0,7\]$',
254
                response, response, response_info)
255
            data_json = json.loads(gwt_decode(data_gwt))
256
            raise NotImplementedError()
257 5120 aaronmk
    finally:
258 5121 aaronmk
        profiler.stop(name_ct)
259 5120 aaronmk
        sys.stderr.write(profiler.msg()+'\n')
260 9525 aaronmk
261
        if cumulative_profiler != None:
262
            cumulative_profiler.add_subprofiler(profiler)
263
            sys.stderr.write('Cumulatively: '+cumulative_profiler.msg()+'\n')
264 5088 aaronmk
265 9520 aaronmk
def tnrs_request(names, debug=False, **kw_args):
266 5108 aaronmk
    for try_num in xrange(2):
267 9519 aaronmk
        try: return single_tnrs_request(names, debug, **kw_args)
268 5160 aaronmk
        except (urllib2.HTTPError, InvalidResponse), e:
269 5107 aaronmk
            exc.print_ex(e, detail=False)
270 5108 aaronmk
            debug = True
271
            # try again with debug turned on
272 5088 aaronmk
    raise # error is not temporary