def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
if assignment_method == 'blast':
if not opts.id_to_taxonomy_fp:
option_parser.error('Option --id_to_taxonomy_fp is required when '
'assigning with blast.')
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error(
'Either a blast db (via -b) or a collection of '
'reference sequences (via -r) must be passed to '
'assign taxonomy using blast.')
if assignment_method == 'rdp':
try:
validate_rdp_version()
except RuntimeError, e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
'A filepath for reference sequences must be '
'specified (via -r) along with the id_to_taxonomy '
'file to train the Rdp Classifier.')
elif opts.reference_seqs_fp is not None:
option_parser.error('A filepath for an id to taxonomy map must be '
'specified (via -t) along with the reference '
'sequences fp to train the Rdp Classifier.')
else:
pass
def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
if assignment_method == 'blast':
if not opts.id_to_taxonomy_fp:
option_parser.error('Option --id_to_taxonomy_fp is required when '
'assigning with blast.')
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error('Either a blast db (via -b) or a collection of '
'reference sequences (via -r) must be passed to '
'assign taxonomy using blast.')
if assignment_method == 'rdp':
try:
validate_rdp_version()
except RuntimeError, e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
'A filepath for reference sequences must be '
'specified (via -r) along with the id_to_taxonomy '
'file to train the Rdp Classifier.')
elif opts.reference_seqs_fp is not None:
option_parser.error(
'A filepath for an id to taxonomy map must be '
'specified (via -t) along with the reference '
'sequences fp to train the Rdp Classifier.')
else:
pass
def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
similarity = opts.similarity
sortmerna_coverage = opts.sortmerna_coverage
sortmerna_db = opts.sortmerna_db
if assignment_method == 'sortmerna':
# similarity must be between (0,1]
if not 0 < similarity <= 1:
option_parser.error('--similarity must be between (0,1].')
# coverage must be between (0.1]
if not 0 < sortmerna_coverage <= 1:
option_parser.error('--sortmerna_coverage must be '
'between (0,1].')
# check ID to taxonomy filepath
if not opts.id_to_taxonomy_fp:
option_parser.error('--id_to_taxonomy_fp is required when '
'assigning with sortmerna.')
# check reference sequences filepath
if not opts.reference_seqs_fp:
option_parser.error(
'sortmerna always requires --reference_seqs_fp '
'(with or without sortmerna_db)')
# check indexed database, if provided (not mandatory)
elif sortmerna_db:
if isfile(sortmerna_db + '.stats') is False:
option_parser.error('%s does not exist, make sure you have '
'indexed the database using indexdb_rna' %
(sortmerna_db + '.stats'))
if assignment_method == 'blast':
if not opts.id_to_taxonomy_fp:
option_parser.error('--id_to_taxonomy_fp is required when '
'assigning with blast.')
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error('Either a blast db (via -b) or a collection '
'of reference sequences (via -r) must be '
'passed to assign taxonomy using blast.')
if assignment_method == 'rdp':
try:
validate_rdp_version()
except RuntimeError as e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
'A filepath for reference sequences must be '
'specified (via -r) along with the id_to_taxonomy '
'file to train the Rdp Classifier.')
elif opts.reference_seqs_fp is not None:
option_parser.error('A filepath for an id to taxonomy map must be '
'specified (via -t) along with the reference '
'sequences fp to train the Rdp Classifier.')
else:
pass
if assignment_method == 'uclust':
if opts.id_to_taxonomy_fp is None:
option_parser.error('--id_to_taxonomy_fp is required when '
'assigning with uclust.')
if opts.reference_seqs_fp is None:
option_parser.error('--reference_seqs_fp is required when '
'assigning with uclust.')
if assignment_method == 'rtax':
if opts.id_to_taxonomy_fp is None or opts.reference_seqs_fp is None:
option_parser.error(
'RTAX classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
if opts.read_1_seqs_fp is None: # or opts.read_2_seqs_fp is None:
option_parser.error(
'RTAX classification requires the FASTA files '
'produced by split_illumina_fastq.py for both reads, '
'in addition to the cluster representatives. Pass '
'these via --read_1_seqs_fp and --read_2_seqs_fp.')
if assignment_method == 'mothur':
if None in [opts.id_to_taxonomy_fp, opts.reference_seqs_fp]:
option_parser.error(
'Mothur classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
taxon_assigner_constructor =\
assignment_method_constructors[assignment_method]
input_sequences_filepath = opts.input_fasta_fp
try:
id_to_taxonomy_fp = opts.id_to_taxonomy_fp
params = {'id_to_taxonomy_filepath': id_to_taxonomy_fp}
except IndexError:
params = {}
# Build the output filenames
output_dir = opts.output_dir or assignment_method + '_assigned_taxonomy'
try:
mkdir(output_dir)
except OSError:
# output_dir already exists
pass
fpath, ext = splitext(input_sequences_filepath)
input_dir, fname = split(fpath)
result_path = output_dir + '/' + fname + '_tax_assignments.txt'
log_path = output_dir + '/' + fname + '_tax_assignments.log'
if assignment_method == 'blast':
# one of these must have a value, otherwise we'd have
# an optparse error
if opts.blast_db:
params['blast_db'] = opts.blast_db
else:
params['reference_seqs_filepath'] = opts.reference_seqs_fp
params['Max E value'] = opts.blast_e_value
elif assignment_method == 'mothur':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
elif assignment_method == 'uclust':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['min_consensus_fraction'] = opts.min_consensus_fraction
params['similarity'] = similarity
params['max_accepts'] = opts.uclust_max_accepts
elif assignment_method == 'sortmerna':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['sortmerna_db'] = sortmerna_db
params['min_consensus_fraction'] = opts.min_consensus_fraction
params['min_percent_id'] = float(similarity * 100.0)
params['min_percent_cov'] = float(sortmerna_coverage * 100.0)
params['best_N_alignments'] = opts.sortmerna_best_N_alignments
params['e_value'] = opts.sortmerna_e_value
params['threads'] = opts.sortmerna_threads
elif assignment_method == 'rdp':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params[
'training_data_properties_fp'] = opts.training_data_properties_fp
params['max_memory'] = "%sM" % opts.rdp_max_memory
elif assignment_method == 'rtax':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['read_1_seqs_fp'] = opts.read_1_seqs_fp
params['read_2_seqs_fp'] = opts.read_2_seqs_fp
params['single_ok'] = opts.single_ok
params['no_single_ok_generic'] = opts.no_single_ok_generic
params['header_id_regex'] = opts.header_id_regex
params['read_id_regex'] = opts.read_id_regex
params['amplicon_id_regex'] = opts.amplicon_id_regex
else:
# should not be able to get here as an unknown classifier would
# have raised an optparse error
exit(1)
fd, temp_result_path = mkstemp(prefix='assign-tax')
close(fd)
taxon_assigner = taxon_assigner_constructor(params)
if assignment_method == "sortmerna":
taxon_assigner(input_sequences_filepath,
result_path=result_path,
log_path=log_path)
else:
taxon_assigner(input_sequences_filepath,
result_path=temp_result_path,
log_path=log_path)
# This is an ugly hack, and needs to be pushed upstream to
# the taxon assigners (except for sortmerna, which already outputs
# only the first field for all headers in the Blast tabular output).
# The output taxonomy maps that are returned by the taxon assigners
# contain the full sequence headers as the first field (so including
# "comment" text in the fasta headers), but for consistency with the
# input taxonomy maps, should only contain the sequence identifier.
# This modifies those entries to contain only the sequence identifer,
# discarding any comment information. The formatting of these result
# files needs to be centralized, and at that stage this processing
# should happen there rather than here.
result_f = open(result_path, 'w')
for line in open(temp_result_path, 'U'):
fields = line.strip().split('\t')
seq_id = fields[0].split()[0]
result_f.write('%s\t%s\n' % (seq_id, '\t'.join(fields[1:])))
result_f.close()
remove_files([temp_result_path])
def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
similarity = opts.similarity
sortmerna_coverage = opts.sortmerna_coverage
sortmerna_db = opts.sortmerna_db
if assignment_method == 'sortmerna':
# similarity must be between (0,1]
if not 0 < similarity <= 1:
option_parser.error('--similarity must be between (0,1].')
# coverage must be between (0.1]
if not 0 < sortmerna_coverage <= 1:
option_parser.error('--sortmerna_coverage must be '
'between (0,1].')
# check ID to taxonomy filepath
if not opts.id_to_taxonomy_fp:
option_parser.error('--id_to_taxonomy_fp is required when '
'assigning with sortmerna.')
# check reference sequences filepath
if not opts.reference_seqs_fp:
option_parser.error('sortmerna always requires --reference_seqs_fp '
'(with or without sortmerna_db)')
# check indexed database, if provided (not mandatory)
elif sortmerna_db:
if isfile(sortmerna_db + '.stats') is False:
option_parser.error('%s does not exist, make sure you have '
'indexed the database using indexdb_rna' %
(sortmerna_db + '.stats'))
if assignment_method == 'blast':
if not opts.id_to_taxonomy_fp:
option_parser.error('--id_to_taxonomy_fp is required when '
'assigning with blast.')
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error('Either a blast db (via -b) or a collection '
'of reference sequences (via -r) must be '
'passed to assign taxonomy using blast.')
if assignment_method == 'rdp':
try:
validate_rdp_version()
except RuntimeError as e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
'A filepath for reference sequences must be '
'specified (via -r) along with the id_to_taxonomy '
'file to train the Rdp Classifier.')
elif opts.reference_seqs_fp is not None:
option_parser.error(
'A filepath for an id to taxonomy map must be '
'specified (via -t) along with the reference '
'sequences fp to train the Rdp Classifier.')
else:
pass
if assignment_method == 'uclust':
if opts.id_to_taxonomy_fp is None:
option_parser.error('--id_to_taxonomy_fp is required when '
'assigning with uclust.')
if opts.reference_seqs_fp is None:
option_parser.error('--reference_seqs_fp is required when '
'assigning with uclust.')
if assignment_method == 'rtax':
if opts.id_to_taxonomy_fp is None or opts.reference_seqs_fp is None:
option_parser.error('RTAX classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
if opts.read_1_seqs_fp is None: # or opts.read_2_seqs_fp is None:
option_parser.error('RTAX classification requires the FASTA files '
'produced by split_illumina_fastq.py for both reads, '
'in addition to the cluster representatives. Pass '
'these via --read_1_seqs_fp and --read_2_seqs_fp.')
if assignment_method == 'mothur':
if None in [opts.id_to_taxonomy_fp, opts.reference_seqs_fp]:
option_parser.error(
'Mothur classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
taxon_assigner_constructor =\
assignment_method_constructors[assignment_method]
input_sequences_filepath = opts.input_fasta_fp
try:
id_to_taxonomy_fp = opts.id_to_taxonomy_fp
params = {'id_to_taxonomy_filepath': id_to_taxonomy_fp}
except IndexError:
params = {}
# Build the output filenames
output_dir = opts.output_dir or assignment_method + '_assigned_taxonomy'
try:
mkdir(output_dir)
except OSError:
# output_dir already exists
pass
fpath, ext = splitext(input_sequences_filepath)
input_dir, fname = split(fpath)
result_path = output_dir + '/' + fname + '_tax_assignments.txt'
log_path = output_dir + '/' + fname + '_tax_assignments.log'
if assignment_method == 'blast':
# one of these must have a value, otherwise we'd have
# an optparse error
if opts.blast_db:
params['blast_db'] = opts.blast_db
else:
params['reference_seqs_filepath'] = opts.reference_seqs_fp
params['Max E value'] = opts.blast_e_value
elif assignment_method == 'mothur':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
elif assignment_method == 'uclust':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['min_consensus_fraction'] = opts.min_consensus_fraction
params['similarity'] = similarity
params['max_accepts'] = opts.uclust_max_accepts
elif assignment_method == 'sortmerna':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['sortmerna_db'] = sortmerna_db
params['min_consensus_fraction'] = opts.min_consensus_fraction
params['min_percent_id'] = float(similarity*100.0)
params['min_percent_cov'] = float(sortmerna_coverage*100.0)
params['best_N_alignments'] = opts.sortmerna_best_N_alignments
params['e_value'] = opts.sortmerna_e_value
params['threads'] = opts.sortmerna_threads
elif assignment_method == 'rdp':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params[
'training_data_properties_fp'] = opts.training_data_properties_fp
params['max_memory'] = "%sM" % opts.rdp_max_memory
elif assignment_method == 'rtax':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['read_1_seqs_fp'] = opts.read_1_seqs_fp
params['read_2_seqs_fp'] = opts.read_2_seqs_fp
params['single_ok'] = opts.single_ok
params['no_single_ok_generic'] = opts.no_single_ok_generic
params['header_id_regex'] = opts.header_id_regex
params['read_id_regex'] = opts.read_id_regex
params['amplicon_id_regex'] = opts.amplicon_id_regex
else:
# should not be able to get here as an unknown classifier would
# have raised an optparse error
exit(1)
fd, temp_result_path = mkstemp(prefix='assign-tax')
close(fd)
taxon_assigner = taxon_assigner_constructor(params)
if assignment_method == "sortmerna":
taxon_assigner(input_sequences_filepath,
result_path=result_path,
log_path=log_path)
else:
taxon_assigner(input_sequences_filepath,
result_path=temp_result_path,
log_path=log_path)
# This is an ugly hack, and needs to be pushed upstream to
# the taxon assigners (except for sortmerna, which already outputs
# only the first field for all headers in the Blast tabular output).
# The output taxonomy maps that are returned by the taxon assigners
# contain the full sequence headers as the first field (so including
# "comment" text in the fasta headers), but for consistency with the
# input taxonomy maps, should only contain the sequence identifier.
# This modifies those entries to contain only the sequence identifer,
# discarding any comment information. The formatting of these result
# files needs to be centralized, and at that stage this processing
# should happen there rather than here.
result_f = open(result_path, 'w')
for line in open(temp_result_path, 'U'):
fields = line.strip().split('\t')
seq_id = fields[0].split()[0]
result_f.write('%s\t%s\n' % (seq_id, '\t'.join(fields[1:])))
result_f.close()
remove_files([temp_result_path])
def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
if assignment_method == 'blast':
if not opts.id_to_taxonomy_fp:
option_parser.error('Option --id_to_taxonomy_fp is required when '
'assigning with blast.')
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error(
'Either a blast db (via -b) or a collection of '
'reference sequences (via -r) must be passed to '
'assign taxonomy using blast.')
if assignment_method == 'rdp':
try:
validate_rdp_version()
except RuntimeError as e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
'A filepath for reference sequences must be '
'specified (via -r) along with the id_to_taxonomy '
'file to train the Rdp Classifier.')
elif opts.reference_seqs_fp is not None:
option_parser.error('A filepath for an id to taxonomy map must be '
'specified (via -t) along with the reference '
'sequences fp to train the Rdp Classifier.')
else:
pass
if assignment_method == 'uclust':
if opts.id_to_taxonomy_fp is None:
option_parser.error('Option --id_to_taxonomy_fp is required when '
'assigning with uclust.')
if opts.reference_seqs_fp is None:
option_parser.error('Option --reference_seqs_fp is required when '
'assigning with uclust.')
if assignment_method == 'rtax':
if opts.id_to_taxonomy_fp is None or opts.reference_seqs_fp is None:
option_parser.error(
'RTAX classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
if opts.read_1_seqs_fp is None: # or opts.read_2_seqs_fp is None:
option_parser.error(
'RTAX classification requires the FASTA files '
'produced by split_illumina_fastq.py for both reads, '
'in addition to the cluster representatives. Pass '
'these via --read_1_seqs_fp and --read_2_seqs_fp.')
if assignment_method == 'mothur':
if None in [opts.id_to_taxonomy_fp, opts.reference_seqs_fp]:
option_parser.error(
'Mothur classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
if assignment_method == 'tax2tree':
if opts.tree_fp is None:
option_parser.error(
'Tax2Tree classification requires a '
'filepath to a prebuilt tree (via --tree_fp) containing '
'both the representative and reference sequences. Check '
'Tax2Tree documentation for help building a tree.')
if opts.id_to_taxonomy_fp is None:
option_parser.error(
'Tax2Tree classification requires a '
'filepath for an id_to_taxonomy file (via -t).')
taxon_assigner_constructor =\
assignment_method_constructors[assignment_method]
input_sequences_filepath = opts.input_fasta_fp
try:
id_to_taxonomy_fp = opts.id_to_taxonomy_fp
params = {'id_to_taxonomy_filepath': id_to_taxonomy_fp}
except IndexError:
params = {}
# Build the output filenames
output_dir = opts.output_dir or assignment_method + '_assigned_taxonomy'
try:
mkdir(output_dir)
except OSError:
# output_dir already exists
pass
fpath, ext = splitext(input_sequences_filepath)
input_dir, fname = split(fpath)
result_path = output_dir + '/' + fname + '_tax_assignments.txt'
log_path = output_dir + '/' + fname + '_tax_assignments.log'
if assignment_method == 'blast':
# one of these must have a value, otherwise we'd have
# an optparse error
if opts.blast_db:
params['blast_db'] = opts.blast_db
else:
params['reference_seqs_filepath'] = opts.reference_seqs_fp
params['Max E value'] = opts.e_value
elif assignment_method == 'mothur':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
elif assignment_method == 'uclust':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['min_consensus_fraction'] = opts.uclust_min_consensus_fraction
params['similarity'] = opts.uclust_similarity
params['max_accepts'] = opts.uclust_max_accepts
elif assignment_method == 'rdp':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params[
'training_data_properties_fp'] = opts.training_data_properties_fp
params['max_memory'] = "%sM" % opts.rdp_max_memory
elif assignment_method == 'rtax':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['read_1_seqs_fp'] = opts.read_1_seqs_fp
params['read_2_seqs_fp'] = opts.read_2_seqs_fp
params['single_ok'] = opts.single_ok
params['no_single_ok_generic'] = opts.no_single_ok_generic
params['header_id_regex'] = opts.header_id_regex
params['read_id_regex'] = opts.read_id_regex
params['amplicon_id_regex'] = opts.amplicon_id_regex
elif assignment_method == 'tax2tree':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['tree_fp'] = opts.tree_fp
else:
# should not be able to get here as an unknown classifier would
# have raised an optparse error
exit(1)
temp_result_path = get_tmp_filename(prefix='assign-tax')
taxon_assigner = taxon_assigner_constructor(params)
taxon_assigner(input_sequences_filepath,
result_path=temp_result_path,
log_path=log_path)
# This is an ugly hack, and needs to be pushed upstream to
# the taxon assigners. The output taxonomy maps that are returned by the
# taxon assigners contain the full sequence headers as the first field
# (so including "comment" text in the fasta headers), but for consistency
# with the input taxonomy maps, should only contain the sequence identifier.
# This modifies those entries to contain only the sequence identifer,
# discarding any comment information. The formatting of these result files
# needs to be centralized, and at that stage this processing should
# happen there rather than here.
result_f = open(result_path, 'w')
for line in open(temp_result_path, 'U'):
fields = line.strip().split('\t')
seq_id = fields[0].split()[0]
result_f.write('%s\t%s\n' % (seq_id, '\t'.join(fields[1:])))
result_f.close()
remove_files([temp_result_path])
def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
if assignment_method == "blast":
if not opts.id_to_taxonomy_fp:
option_parser.error("Option --id_to_taxonomy_fp is required when " "assigning with blast.")
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error(
"Either a blast db (via -b) or a collection of "
"reference sequences (via -r) must be passed to "
"assign taxonomy using blast."
)
if assignment_method == "rdp":
try:
validate_rdp_version()
except RuntimeError as e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
"A filepath for reference sequences must be "
"specified (via -r) along with the id_to_taxonomy "
"file to train the Rdp Classifier."
)
elif opts.reference_seqs_fp is not None:
option_parser.error(
"A filepath for an id to taxonomy map must be "
"specified (via -t) along with the reference "
"sequences fp to train the Rdp Classifier."
)
else:
pass
if assignment_method == "uclust":
if opts.id_to_taxonomy_fp is None:
option_parser.error("Option --id_to_taxonomy_fp is required when " "assigning with uclust.")
if opts.reference_seqs_fp is None:
option_parser.error("Option --reference_seqs_fp is required when " "assigning with uclust.")
if assignment_method == "rtax":
if opts.id_to_taxonomy_fp is None or opts.reference_seqs_fp is None:
option_parser.error(
"RTAX classification requires both a filepath for "
"reference sequences (via -r) and an id_to_taxonomy "
"file (via -t)."
)
if opts.read_1_seqs_fp is None: # or opts.read_2_seqs_fp is None:
option_parser.error(
"RTAX classification requires the FASTA files "
"produced by split_illumina_fastq.py for both reads, "
"in addition to the cluster representatives. Pass "
"these via --read_1_seqs_fp and --read_2_seqs_fp."
)
if assignment_method == "mothur":
if None in [opts.id_to_taxonomy_fp, opts.reference_seqs_fp]:
option_parser.error(
"Mothur classification requires both a filepath for "
"reference sequences (via -r) and an id_to_taxonomy "
"file (via -t)."
)
if assignment_method == "tax2tree":
if opts.tree_fp is None:
option_parser.error(
"Tax2Tree classification requires a "
"filepath to a prebuilt tree (via --tree_fp) containing "
"both the representative and reference sequences. Check "
"Tax2Tree documentation for help building a tree."
)
if opts.id_to_taxonomy_fp is None:
option_parser.error("Tax2Tree classification requires a " "filepath for an id_to_taxonomy file (via -t).")
taxon_assigner_constructor = assignment_method_constructors[assignment_method]
input_sequences_filepath = opts.input_fasta_fp
try:
id_to_taxonomy_fp = opts.id_to_taxonomy_fp
params = {"id_to_taxonomy_filepath": id_to_taxonomy_fp}
except IndexError:
params = {}
# Build the output filenames
output_dir = opts.output_dir or assignment_method + "_assigned_taxonomy"
try:
mkdir(output_dir)
except OSError:
# output_dir already exists
pass
fpath, ext = splitext(input_sequences_filepath)
input_dir, fname = split(fpath)
result_path = output_dir + "/" + fname + "_tax_assignments.txt"
log_path = output_dir + "/" + fname + "_tax_assignments.log"
if assignment_method == "blast":
# one of these must have a value, otherwise we'd have
# an optparse error
if opts.blast_db:
params["blast_db"] = opts.blast_db
else:
params["reference_seqs_filepath"] = opts.reference_seqs_fp
params["Max E value"] = opts.e_value
elif assignment_method == "mothur":
params["Confidence"] = opts.confidence
params["id_to_taxonomy_fp"] = opts.id_to_taxonomy_fp
params["reference_sequences_fp"] = opts.reference_seqs_fp
elif assignment_method == "uclust":
params["id_to_taxonomy_fp"] = opts.id_to_taxonomy_fp
params["reference_sequences_fp"] = opts.reference_seqs_fp
params["min_consensus_fraction"] = opts.uclust_min_consensus_fraction
params["similarity"] = opts.uclust_similarity
params["max_accepts"] = opts.uclust_max_accepts
elif assignment_method == "rdp":
params["Confidence"] = opts.confidence
params["id_to_taxonomy_fp"] = opts.id_to_taxonomy_fp
params["reference_sequences_fp"] = opts.reference_seqs_fp
params["training_data_properties_fp"] = opts.training_data_properties_fp
params["max_memory"] = "%sM" % opts.rdp_max_memory
elif assignment_method == "rtax":
params["id_to_taxonomy_fp"] = opts.id_to_taxonomy_fp
params["reference_sequences_fp"] = opts.reference_seqs_fp
params["read_1_seqs_fp"] = opts.read_1_seqs_fp
params["read_2_seqs_fp"] = opts.read_2_seqs_fp
params["single_ok"] = opts.single_ok
params["no_single_ok_generic"] = opts.no_single_ok_generic
params["header_id_regex"] = opts.header_id_regex
params["read_id_regex"] = opts.read_id_regex
params["amplicon_id_regex"] = opts.amplicon_id_regex
elif assignment_method == "tax2tree":
params["id_to_taxonomy_fp"] = opts.id_to_taxonomy_fp
params["tree_fp"] = opts.tree_fp
else:
# should not be able to get here as an unknown classifier would
# have raised an optparse error
exit(1)
fd, temp_result_path = mkstemp(prefix="assign-tax")
close(fd)
taxon_assigner = taxon_assigner_constructor(params)
taxon_assigner(input_sequences_filepath, result_path=temp_result_path, log_path=log_path)
# This is an ugly hack, and needs to be pushed upstream to
# the taxon assigners. The output taxonomy maps that are returned by the
# taxon assigners contain the full sequence headers as the first field
# (so including "comment" text in the fasta headers), but for consistency
# with the input taxonomy maps, should only contain the sequence identifier.
# This modifies those entries to contain only the sequence identifer,
# discarding any comment information. The formatting of these result files
# needs to be centralized, and at that stage this processing should
# happen there rather than here.
result_f = open(result_path, "w")
for line in open(temp_result_path, "U"):
fields = line.strip().split("\t")
seq_id = fields[0].split()[0]
result_f.write("%s\t%s\n" % (seq_id, "\t".join(fields[1:])))
result_f.close()
remove_files([temp_result_path])
def main():
option_parser, opts, args = parse_command_line_parameters(**script_info)
assignment_method = opts.assignment_method
if assignment_method == 'blast':
if not opts.id_to_taxonomy_fp:
option_parser.error('Option --id_to_taxonomy_fp is required when '
'assigning with blast.')
if not (opts.reference_seqs_fp or opts.blast_db):
option_parser.error('Either a blast db (via -b) or a collection of '
'reference sequences (via -r) must be passed to '
'assign taxonomy using blast.')
if assignment_method == 'rdp':
try:
validate_rdp_version()
except RuntimeError as e:
option_parser.error(e)
if opts.id_to_taxonomy_fp is not None:
if opts.reference_seqs_fp is None:
option_parser.error(
'A filepath for reference sequences must be '
'specified (via -r) along with the id_to_taxonomy '
'file to train the Rdp Classifier.')
elif opts.reference_seqs_fp is not None:
option_parser.error(
'A filepath for an id to taxonomy map must be '
'specified (via -t) along with the reference '
'sequences fp to train the Rdp Classifier.')
else:
pass
if assignment_method == 'uclust':
if opts.id_to_taxonomy_fp is None:
option_parser.error('Option --id_to_taxonomy_fp is required when '
'assigning with uclust.')
if opts.reference_seqs_fp is None:
option_parser.error('Option --reference_seqs_fp is required when '
'assigning with uclust.')
if assignment_method == 'rtax':
if opts.id_to_taxonomy_fp is None or opts.reference_seqs_fp is None:
option_parser.error('RTAX classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
if opts.read_1_seqs_fp is None: # or opts.read_2_seqs_fp is None:
option_parser.error('RTAX classification requires the FASTA files '
'produced by split_illumina_fastq.py for both reads, '
'in addition to the cluster representatives. Pass '
'these via --read_1_seqs_fp and --read_2_seqs_fp.')
if assignment_method == 'mothur':
if None in [opts.id_to_taxonomy_fp, opts.reference_seqs_fp]:
option_parser.error(
'Mothur classification requires both a filepath for '
'reference sequences (via -r) and an id_to_taxonomy '
'file (via -t).')
if assignment_method == 'tax2tree':
if opts.tree_fp is None:
option_parser.error('Tax2Tree classification requires a '
'filepath to a prebuilt tree (via --tree_fp) containing '
'both the representative and reference sequences. Check '
'Tax2Tree documentation for help building a tree.')
if opts.id_to_taxonomy_fp is None:
option_parser.error('Tax2Tree classification requires a '
'filepath for an id_to_taxonomy file (via -t).')
taxon_assigner_constructor =\
assignment_method_constructors[assignment_method]
input_sequences_filepath = opts.input_fasta_fp
try:
id_to_taxonomy_fp = opts.id_to_taxonomy_fp
params = {'id_to_taxonomy_filepath': id_to_taxonomy_fp}
except IndexError:
params = {}
# Build the output filenames
output_dir = opts.output_dir or assignment_method + '_assigned_taxonomy'
try:
mkdir(output_dir)
except OSError:
# output_dir already exists
pass
fpath, ext = splitext(input_sequences_filepath)
input_dir, fname = split(fpath)
result_path = output_dir + '/' + fname + '_tax_assignments.txt'
log_path = output_dir + '/' + fname + '_tax_assignments.log'
if assignment_method == 'blast':
# one of these must have a value, otherwise we'd have
# an optparse error
if opts.blast_db:
params['blast_db'] = opts.blast_db
else:
params['reference_seqs_filepath'] = opts.reference_seqs_fp
params['Max E value'] = opts.e_value
elif assignment_method == 'mothur':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
elif assignment_method == 'uclust':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['min_consensus_fraction'] = opts.uclust_min_consensus_fraction
params['similarity'] = opts.uclust_similarity
params['max_accepts'] = opts.uclust_max_accepts
elif assignment_method == 'rdp':
params['Confidence'] = opts.confidence
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params[
'training_data_properties_fp'] = opts.training_data_properties_fp
params['max_memory'] = "%sM" % opts.rdp_max_memory
elif assignment_method == 'rtax':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['reference_sequences_fp'] = opts.reference_seqs_fp
params['read_1_seqs_fp'] = opts.read_1_seqs_fp
params['read_2_seqs_fp'] = opts.read_2_seqs_fp
params['single_ok'] = opts.single_ok
params['no_single_ok_generic'] = opts.no_single_ok_generic
params['header_id_regex'] = opts.header_id_regex
params['read_id_regex'] = opts.read_id_regex
params['amplicon_id_regex'] = opts.amplicon_id_regex
elif assignment_method == 'tax2tree':
params['id_to_taxonomy_fp'] = opts.id_to_taxonomy_fp
params['tree_fp'] = opts.tree_fp
else:
# should not be able to get here as an unknown classifier would
# have raised an optparse error
exit(1)
temp_result_path = get_tmp_filename(prefix='assign-tax')
taxon_assigner = taxon_assigner_constructor(params)
taxon_assigner(input_sequences_filepath,
result_path=temp_result_path,
log_path=log_path)
# This is an ugly hack, and needs to be pushed upstream to
# the taxon assigners. The output taxonomy maps that are returned by the
# taxon assigners contain the full sequence headers as the first field
# (so including "comment" text in the fasta headers), but for consistency
# with the input taxonomy maps, should only contain the sequence identifier.
# This modifies those entries to contain only the sequence identifer,
# discarding any comment information. The formatting of these result files
# needs to be centralized, and at that stage this processing should
# happen there rather than here.
result_f = open(result_path, 'w')
for line in open(temp_result_path, 'U'):
fields = line.strip().split('\t')
seq_id = fields[0].split()[0]
result_f.write('%s\t%s\n' % (seq_id, '\t'.join(fields[1:])))
result_f.close()
remove_files([temp_result_path])