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obitools3/python/obitools3/commands/grep.pyx

332 lines
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Cython

#cython: language_level=3
from obitools3.apps.progress cimport ProgressBar # @UnresolvedImport
from obitools3.dms import DMS
from obitools3.dms.view.view cimport View, Line_selection
from obitools3.uri.decode import open_uri
from obitools3.apps.optiongroups import addMinimalInputOption, addTaxonomyInputOption, addMinimalOutputOption
from obitools3.dms.view import RollbackException
from obitools3.apps.config import logger
from obitools3.utils cimport tobytes
from functools import reduce
import time
import re
import sys
__title__="Grep view lines that match the given predicates"
# TODO should sequences that have a grepped attribute at None be grepped or not? (in obi1 they are but....)
def addOptions(parser):
addMinimalInputOption(parser)
addTaxonomyInputOption(parser)
addMinimalOutputOption(parser)
group=parser.add_argument_group("obi grep specific options")
group.add_argument("--predicate", "-p",
action="append", dest="grep:grep_predicates",
metavar="<PREDICATE>",
default=None,
type=str,
help="Python boolean expression to be evaluated in the "
"sequence/line context. The attribute name can be "
"used in the expression as a variable name."
"An extra variable named 'sequence' or 'line' refers"
"to the sequence or line object itself. "
"Several -p options can be used on the same "
"commande line.")
group.add_argument("-S", "--sequence",
action="store", dest="grep:seq_pattern",
metavar="<REGULAR_PATTERN>",
type=str,
help="Regular expression pattern used to select "
"the sequence. The pattern is case insensitive.")
group.add_argument("-D", "--definition",
action="store", dest="grep:def_pattern",
metavar="<REGULAR_PATTERN>",
type=str,
help="Regular expression pattern used to select "
"the definition of the sequence. The pattern is case insensitive.")
group.add_argument("-I", "--identifier",
action="store", dest="grep:id_pattern",
metavar="<REGULAR_PATTERN>",
type=str,
help="Regular expression pattern used to select "
"the identifier of the sequence. The pattern is case insensitive.")
group.add_argument("--id-list",
action="store", dest="grep:id_list",
metavar="<FILE_NAME>",
type=str,
help="File containing the identifiers of the sequences to select.")
group.add_argument("-a", "--attribute",
action="append", dest="grep:attribute_patterns",
type=str,
default=[],
metavar="<ATTRIBUTE_NAME>:<REGULAR_PATTERN>",
help="Regular expression pattern matched against "
"the attributes of the sequence. "
"The pattern is case sensitive. "
"Several -a options can be used on the same "
"command line.")
group.add_argument("-A", "--has-attribute",
action="append", dest="grep:attributes",
type=str,
default=[],
metavar="<ATTRIBUTE_NAME>",
help="Select records with the attribute <ATTRIBUTE_NAME> "
"defined (not set to NA value). "
"Several -a options can be used on the same "
"command line.")
group.add_argument("-L", "--lmax",
action="store", dest="grep:lmax",
metavar="<MAX_LENGTH>",
type=int,
help="Keep sequences shorter than MAX_LENGTH.")
group.add_argument("-l", "--lmin",
action="store", dest="grep:lmin",
metavar="<MIN_LENGTH>",
type=int,
help="Keep sequences longer than MIN_LENGTH.")
group.add_argument("-v", "--invert-selection",
action="store_true", dest="grep:invert_selection",
default=False,
help="Invert the selection.")
group=parser.add_argument_group("Taxonomy filtering specific options") #TODO put somewhere else? not in grep
group.add_argument('--require-rank',
action="append", dest="grep:required_ranks",
metavar="<RANK_NAME>",
type=str,
default=[],
help="Select sequences with a taxid that is or has "
"a parent of rank <RANK_NAME>.")
group.add_argument('-r', '--required',
action="append", dest="grep:required_taxids",
metavar="<TAXID>",
type=int,
default=[],
help="Select the sequences having the ancestor of taxid <TAXID>. "
"If several ancestors are specified (with \n'-r taxid1 -r taxid2'), "
"the sequences having at least one of them are selected.")
# TODO useless option equivalent to -r -v?
group.add_argument('-i','--ignore',
action="append", dest="grep:ignored_taxids",
metavar="<TAXID>",
type=int,
default=[],
help="Ignore the sequences having the ancestor of taxid <TAXID>. "
"If several ancestors are specified (with \n'-r taxid1 -r taxid2'), "
"the sequences having at least one of them are ignored.")
def Filter_generator(options, tax_filter):
#taxfilter = taxonomyFilterGenerator(options)
# Initialize conditions
predicates = None
if "predicates" in options:
predicates = options["predicates"]
attributes = None
if "attributes" in options:
attributes = options["attributes"]
lmax = None
if "lmax" in options:
lmax = options["lmax"]
lmin = None
if "lmin" in options:
lmin = options["lmin"]
invert_selection = options["invert_selection"]
id_set = None
if "id_list" in options:
id_set = set(x.strip() for x in open(options["id_list"]))
# Initialize the regular expression patterns
seq_pattern = None
if "seq_pattern" in options:
seq_pattern = re.compile(tobytes(options["seq_pattern"]), re.I)
id_pattern = None
if "id_pattern" in options:
id_pattern = re.compile(tobytes(options["id_pattern"]))
def_pattern = None
if "def_pattern" in options:
def_pattern = re.compile(tobytes(options["def_pattern"]))
attribute_patterns={}
if "attribute_patterns" in options:
for p in options["attribute_patterns"]:
attribute, pattern = p.split(":", 1)
attribute_patterns[tobytes(attribute)] = re.compile(tobytes(pattern))
def filter(line, loc_env):
cdef bint good = True
if seq_pattern and hasattr(line, "seq"):
good = <bint>(seq_pattern.search(line.seq))
if good and id_pattern and hasattr(line, "id"):
good = <bint>(id_pattern.search(line.id))
if good and id_set is not None and hasattr(line, "id"):
good = line.id in id_set
if good and def_pattern and hasattr(line, "definition"):
good = <bint>(def_pattern.search(line.definition))
if good and attributes: # TODO discuss that we test not None
good = reduce(lambda bint x, bint y: x and y,
(line[attribute] is not None for attribute in attributes),
True)
if good and attribute_patterns:
good = (reduce(lambda bint x, bint y : x and y,
(line[attribute] is not None for attribute in attributes),
True)
and
reduce(lambda bint x, bint y: x and y,
(<bint>(attribute_patterns[attribute].search(tobytes(str(line[attribute]))))
for attribute in attribute_patterns),
True)
)
if good and predicates:
good = (reduce(lambda bint x, bint y: x and y,
(bool(eval(p, loc_env, line))
for p in predicates), True))
if good and lmin:
good = len(line) >= lmin
if good and lmax:
good = len(line) <= lmax
if good:
good = tax_filter(line)
if invert_selection :
good = not good
return good
return filter
def Taxonomy_filter_generator(taxo, options):
if taxo is not None:
def tax_filter(seq):
good = True
if b'TAXID' in seq and seq[b'TAXID'] is not None: # TODO use macro
taxid = seq[b'TAXID']
if "required_ranks" in options and options["required_ranks"]:
taxon_at_rank = reduce(lambda x,y: x and y,
(taxo.get_taxon_at_rank(seq[b'TAXID'], rank) is not None
for rank in options["required_ranks"]),
True)
good = good and taxon_at_rank
if "required_taxids" in options and options["required_taxids"]:
good = good and reduce(lambda x,y: x or y,
(taxo.is_ancestor(r, taxid)
for r in options["required_taxids"]),
False)
if "ignored_taxids" in options and options["ignored_taxids"]:
good = good and not reduce(lambda x,y: x or y,
(taxo.is_ancestor(r,taxid)
for r in options["ignored_taxids"]),
False)
return good
else:
def tax_filter(seq):
return True
return tax_filter
def run(config):
DMS.obi_atexit()
logger("info", "obi grep")
# Open the input
input = open_uri(config["obi"]["inputURI"])
if input is None:
raise Exception("Could not read input view")
i_view = input[1]
# Read the name of the output view
uri = config["obi"]["outputURI"].split("/")
if len(uri)==2:
# Check that input and output DMS are the same (predicate, to discuss)
if config["obi"]["inputURI"].split("/")[0] != uri[0]:
raise Exception("Input and output DMS must be the same")
output_view_name = uri[1]
else:
output_view_name = uri[0]
if "taxoURI" in config["obi"] : # TODO default None problem
taxo_uri = open_uri(config["obi"]["taxoURI"])
if taxo_uri is None:
raise Exception("Couldn't open taxonomy")
taxo = taxo_uri[1]
else :
taxo = None
# Initialize the progress bar
pb = ProgressBar(len(i_view), config, seconde=5)
# Apply filter
tax_filter = Taxonomy_filter_generator(taxo, config["grep"])
filter = Filter_generator(config["grep"], tax_filter)
selection = Line_selection(i_view)
for i in range(len(i_view)):
pb(i)
line = i_view[i]
loc_env = {"sequence": line, "line": line, "taxonomy": taxo}
good = filter(line, loc_env)
if good :
selection.append(i)
# Create output view with the line selection
try:
o_view = selection.materialize(output_view_name)
except Exception, e:
raise RollbackException("obi grep error, rollbacking view: "+str(e), o_view)
# TODO DISCUSS if output URI to different DMS, copy view?
# Save command config in View and DMS comments
command_line = " ".join(sys.argv[1:])
input_dms_name=[input[0].name]
input_view_name=[input[1].name]
if 'taxoURI' in config['obi'] and config['obi']['taxoURI'] is not None:
input_dms_name.append(config['obi']['taxoURI'].split("/", 1)[0])
input_view_name.append(config['obi']['taxoURI'].split("/", 1)[1])
o_view.write_config(config, "grep", command_line, input_dms_name=input_dms_name, input_view_name=input_view_name)
input[0].record_command_line(command_line) # TODO assuming input and output dms are the same
print("\n")
print(repr(o_view))
input[0].close()
#output[0].close()