def __init__(self,
wget=os.path.join("/", "usr", "bin", "wget"),
gunzip=os.path.join("/", "usr", "bin", "gunzip")):
"""
Constructor
"""
config = Configure()
## check that we are in linux or osx
if _platform == "linux" or _platform == "linux2":
pass
elif _platform == "darwin":
pass
elif _platform == "win32":
raise Exception("DatabaseFetch currently does not work on windows platforms\n"+\
"you may still download the files one by one and populated the db")
## ensure they have set up config
for key in ['data', 'dbname']:
if config.log[key] == '':
raise Exception(
"You must modify the config file before running DatabaseFetch.py"
)
dataDir = config.log['data']
if not os.path.isdir(dataDir):
raise Exception(
"Specified htsint data directory does not exist %s" % dataDir)
## move into specified directory
self.cwd = os.getcwd()
os.chdir(dataDir)
## check for the necessary programs
for wgetPath in [
wget, os.path.join('/', 'usr', 'local', 'bin', 'wget')
]:
if os.path.exists(wgetPath) == True:
break
wgetPath = None
if wgetPath == None:
raise Exception(
"ERROR: cannot find wget -- either download the files (see documentation) or specify a path"
)
self.wgetPath = wgetPath
gunzipPaths = [gunzip, os.path.join("/", "bin", "gunzip")]
for gunzipPath in gunzipPaths:
if os.path.exists(gunzipPath) == True:
break
gunzipPath = None
if gunzipPath == None:
raise Exception(
"ERROR: cannot find gunzip -- either download the files (see documentation) or specify a path"
)
self.gunzipPath = gunzipPath
def get_file_sizes():
"""
return a unique dict of geneids with refseq values from the idmapping file
"""
config = Configure()
taxaList = config.log['taxa']
geneInfoCount = read_gene_info_file(lineCount=True)
idmappingFile = get_idmapping_file()
idmappingFid = open(idmappingFile, 'rU')
reader = csv.reader(idmappingFid, delimiter="\t")
records = set([])
totalRecords = 0
for record in reader:
totalRecords += 1
if record[1] == 'ncbi-taxa-id' and record[2] not in taxaList:
continue
records.update([record[0]])
idmappingFid.close()
print 'debug. totalRecords %s, records %s, geneInfoCount %s' % (
totalRecords, len(list(records)), geneInfoCount)
return len(list(records)), geneInfoCount
def setUp(self):
"""
connect to the database
"""
self.queryFile = os.path.join(os.path.dirname(__file__), "adh.fasta")
config = Configure()
self.BLASTDB = config.log['data']
def get_gene2go_file():
"""
check for presence of the annotation file
raise exception when not found
return the file path
"""
config = Configure()
dataDir = config.log['data']
annotationFile = os.path.join(dataDir,'gene2go.db')
if os.path.exists(annotationFile) == False:
raise Exception("Could not find 'gene2go' -- did you run FetchDbData.py?")
return annotationFile
def get_ontology_file():
"""
check for presence of ontology file
raise exception when not found
return the file path
"""
config = Configure()
dataDir = config.log['data']
ontologyFile = os.path.join(dataDir,'go.obo')
if os.path.exists(ontologyFile) == False:
raise Exception("Could not find 'go.obo' -- did you run DatabaseFetch?")
return ontologyFile
def get_idmapping_file():
"""
check for presence of the annotation file
raise exception when not found
return the file path
"""
config = Configure()
dataDir = config.log['data']
idmappingFile = os.path.join(dataDir,'idmapping.dat.db')
if os.path.exists(idmappingFile) == False:
raise Exception("Could not find 'idmapping.dat.db' -- did you run FetchDbData.py?")
return idmappingFile
def get_annotation_file():
"""
check for presence of the annotation file
raise exception when not found
return the file path
"""
fileName = 'gene_association.goa_uniprot.db'
config = Configure()
dataDir = config.log['data']
annotationFile = os.path.join(dataDir,fileName)
if os.path.exists(annotationFile) == False:
raise Exception("Could not find '%s' -- did you run FetchDbData.py?"%(fileName))
return annotationFile
def read_gene_info_file(lineCount=False, short=False):
"""
read the essential info from NCBI's gene info file
"""
config = Configure()
taxaList = config.log['taxa']
geneInfoFile = os.path.join(config.log['data'], "gene_info.db")
geneInfoFid = open(geneInfoFile, 'rU')
header = geneInfoFid.next()
geneInfo = {}
totalLines = 0
for record in geneInfoFid:
record = record.rstrip("\n")
record = record.split("\t")
if re.search("^\#", record[0]):
continue
taxId = record[0]
ncbiId = record[1]
if taxId not in taxaList:
continue
if lineCount == True:
totalLines += 1
continue
symbol = record[2]
synonyms = record[4]
chromosome = record[6]
map_location = record[7]
description = record[8]
if short == False:
geneInfo[ncbiId] = [
taxId, symbol, synonyms, chromosome, map_location, description
]
else:
geneInfo[ncbiId] = taxId
geneInfoFid.close()
if lineCount == True:
return totalLines
else:
return geneInfo
def print_db_summary():
"""
print a summary of rows and tables for the database
"""
print('querying database...')
config = Configure()
printstr = ""
session,engine = db_connect(verbose=False)
printstr += "\nDATABASE - %s - SUMMARY"%config.log['dbname'] + "\n"
print("\nDATABASE - %s - SUMMARY"%config.log['dbname'])
for table in [Taxon,Gene,Uniprot,GoTerm,GoAnnotation]:
print("There are %s entries in the %s table"%(session.query(table).count(),table.__tablename__))
printstr += "There are %s entries in the %s table"%(session.query(table).count(),table.__tablename__) + "\n"
return printstr
def ask_upass():
"""
returns the pass word for the database
"""
config = Configure()
for key in ['data','dbname']:
if config.log[key] == '':
raise Exception("You must modify the config file before running DatabaseFetch.py")
upass = config.log['dbpass']
if upass == '':
upass = getpass.getpass()
return upass
def __init__(self):
"""
Constructor
"""
self.config = Configure()
## ensure config is setup
for key in ['data','dbname']:
if self.config.log[key] == '':
raise Exception("You must modify the config file before running DatabaseFetch.py")
dataDir = self.config.log['data']
if not os.path.isdir(dataDir):
raise Exception("Specified htsint data directory does not exist %s"%dataDir)
self.taxaList = self.config.log['taxa']
def db_connect(verbose=False, upass=''):
"""
generic function to connect to db
"""
config = Configure()
for key in ['data', 'dbname']:
if config.log[key] == '':
raise Exception(
"You must modify the config file before running DatabaseFetch.py"
)
check_version()
## declare variables
uname = config.log['dbuser']
dbhost = config.log['dbhost']
dbname = config.log['dbname']
port = config.log['dbport']
## get data base parameters
if upass == '':
upass = ask_upass()
if dbname == '' or port == '' or dbhost == '' or uname == '':
raise Exception(
"Invalid database parameters -- parameters not specified in config file"
)
## create connection to db and create necessary tables
if verbose:
print "connecting to database: %s" % dbname
engine = create_engine('postgresql://%s:%s@%s:%s/%s' %
(uname, upass, dbhost, port, dbname),
echo=verbose)
connection = engine.connect()
Session = sessionmaker(bind=engine)
session = Session()
if verbose:
print 'connected.'
return session, engine
def get_total_annotations():
"""
get the number of annotations in the uniprot file
this does not include the gene2go file
"""
config = Configure()
taxaList = config.log['taxa']
annotationFile = get_annotation_file()
annotationFid = open(annotationFile,'rU')
annotsCount = 0
annotatedIds = {}
totalAnnotations = 0
for record in annotationFid:
record = record[:-1].split("\t")
if record[0][0] == "!":
continue
if record[0] != 'UniProtKB':
continue
taxon = re.sub("taxon:","",record[12])
if taxon == "" or re.search("\|",taxon):
continue
if taxon not in taxaList:
continue
totalAnnotations += 1
gene2goFile = get_gene2go_file()
gene2goFid = open(gene2goFile,'rU')
header = gene2goFid.next()
for record in gene2goFid:
totalAnnotations += 1
return totalAnnotations
def populate_uniprot_table(lineCount,session,engine):
"""
populate the uniprot table with entries from idmappings
"""
config = Configure()
taxaList = config.log['taxa']
timeStart = time.time()
totalLines,totalRecords = 0,0
idmappingFile = get_idmapping_file()
idmappingFid = open(idmappingFile,'rb')
reader = csv.reader(idmappingFid,delimiter="\t")
ac2kbMap,toAdd = {},{}
wayPoints = [round(int(w)) for w in np.linspace(0,lineCount,20)]
print("getting mappers...")
geneIdMap = gene_mapper(session)
taxonIdMap = taxa_mapper(session)
print("mappers loaded... %s"%time.strftime('%H:%M:%S',time.gmtime(time.time()-timeStart)))
def queue_entries(toAdd,geneIdMap,taxonIdMap,engine):
toCommit = []
for uniprotKbEntry, entry in toAdd.iteritems():
db_gene_id = None
db_taxa_id = None
db_gene_taxa_id = None
## convert the gene id to a database key (check old names if we cannot find it)
if entry['gene-id'] == None:
pass
elif entry['gene-id'] in geneIdMap:
db_gene_id = geneIdMap[entry['gene-id']]
elif entry['gene-id'] not in geneIdMap:
_geneIds = [re.sub("\s+","",_ncid) for _ncid in entry['gene-id'].split(";")]
db_gene_id = None
for _gid in _geneIds:
if _gid in geneIdMap:
db_gene_id= _gid
## convert the taxa id to a database key
if entry['ncbi-taxa-id'] and entry['ncbi-taxa-id'] in taxonIdMap:
db_taxa_id = taxonIdMap[entry['ncbi-taxa-id']]
## check that the linked gene taxa is the same as the entry taxa
#if db_gene_id:
# db_gene_taxa_id = session.query(Gene).filter_by(id=db_gene_id).first().taxa_id
#if db_taxa_id and db_gene_id:
# if db_taxa_id != db_gene_taxa_id:
# print("WARNING: two taxa present in single uniprot entry? %s %s "%(uniprotKbEntry,\
# entry['gene-id']))
## if no taxa was provdied use the one assocated with the linked gene
#if not db_taxa_id:
# dgeneQuery = session.query(Gene).filter_by(id=db_gene_id).first()
# if dgeneQuery:
# db_taxa_id = dgeneQuery.taxa_id
## ensure we are in appropriate taxa
if entry['ncbi-taxa-id'] not in taxaList:
continue
## ready the uniprot-ac and refseq rows
entry['uniprot-ac'] = list(entry['uniprot-ac'])
if len(entry['uniprot-ac']) == 0:
entry['uniprot-ac'] = None
elif len(entry['uniprot-ac']) == 1:
entry['uniprot-ac'] = entry['uniprot-ac'][0]
else:
entry['uniprot-ac'] = ";".join(entry['uniprot-ac'])
entry['refseq'] = list(entry['refseq'])
if len(entry['refseq']) == 0:
entry['refseq'] = None
elif len(entry['refseq']) == 1:
entry['refseq'] = entry['refseq'][0]
else:
entry['refseq'] = ";".join(entry['refseq'])
## commit to db
toCommit.append({'uniprot_ac':entry['uniprot-ac'],'uniprot_entry':uniprotKbEntry,
'refseq':entry['refseq'],'taxa_id':db_taxa_id,'gene_id':db_gene_id})
if len(toCommit) > 0:
with engine.begin() as connection:
connection.execute(Uniprot.__table__.insert().
values(toCommit))
## parse the idmapping file into the db
for record in reader:
if len(record) != 3:
continue
uniprotKbAc,uniprotKbEntry,ncbiId,refseq,ncbiTaxaId = None,None,None,None,None
uniprotKbAc = record[0]
totalLines += 1
if totalLines in wayPoints:
print("\t%s / %s"%(totalLines,lineCount))
if record[1] == 'NCBI_TaxID':
ncbiTaxaId = record[2]
elif record[1] == 'GeneID':
ncbiId = record[2]
elif record[1] == 'UniProtKB-ID':
uniprotKbEntry = record[2]
if uniprotKbAc not in ac2kbMap:
ac2kbMap[uniprotKbAc] = uniprotKbEntry
elif record[1] == 'RefSeq':
refseq = record[2]
else:
continue
## skip the XXXX-1 like uniprot ac
if uniprotKbAc not in ac2kbMap:
continue
## get current key
uniprotKbEntry = ac2kbMap[uniprotKbAc]
## make new entry if necessary
if uniprotKbEntry and uniprotKbEntry not in toAdd:
## queue entries in blocks
totalRecords += 1
if totalRecords % 100000 == 0:
queue_entries(toAdd,geneIdMap,taxonIdMap,engine)
toAdd,ac2kbMap = {},{}
ac2kbMap[uniprotKbAc] = uniprotKbEntry
toAdd[uniprotKbEntry] = {'ncbi-taxa-id':None,
'gene-id':None,
'uniprot-ac':set([]),
'refseq':set([])}
## populate uniprot dictionary
toAdd[uniprotKbEntry]['uniprot-ac'].update([uniprotKbAc])
if ncbiTaxaId:
toAdd[uniprotKbEntry]['ncbi-taxa-id'] = ncbiTaxaId
elif ncbiId:
toAdd[uniprotKbEntry]['gene-id'] = ncbiId
elif refseq:
toAdd[uniprotKbEntry]['refseq'].update([refseq])
## queue any remaining
if len(toAdd.keys()) > 0:
queue_entries(toAdd,geneIdMap,taxonIdMap,engine)
## clean up
idmappingFid.close()
timeStr = "...total time taken: %s"%time.strftime('%H:%M:%S', time.gmtime(time.time()-timeStart))
addedStr = "...%s unique uniprot entries were added."%totalRecords
return timeStr,addedStr
def populate_gene_table(geneInfoCount,session,engine):
"""
use the geneids derived from the idmapping file along with gene_info data to populate the gene table
"""
config = Configure()
taxaList = config.log['taxa']
timeStart = time.time()
toAdd = []
totalRecords = 0
total = geneInfoCount
wayPoints = [round(int(w)) for w in np.linspace(0,total,20)]
geneInfoFile = os.path.join(config.log['data'],"gene_info.db")
geneInfoFid = open(geneInfoFile,'rU')
header = geneInfoFid.__next__()
taxaIdMap = taxa_mapper(session)
for record in geneInfoFid:
record = record.rstrip("\n")
record = record.split("\t")
if re.search("^\#",record[0]):
continue
taxId = record[0]
if taxId not in taxaList:
continue
ncbiId = record[1]
symbol = record[2]
synonyms = record[4]
chromosome = record[6]
map_location = record[7]
description = record[8]
## define the table entry
toAdd.append({'ncbi_id':ncbiId,'description':description,'symbol':symbol,'synonyms':synonyms,
'chromosome':chromosome,'map_location':map_location,'taxa_id':taxId})
totalRecords += 1
if len(toAdd) >= 200000:
toRemove = []
for ta in toAdd:
if ta['taxa_id'] in taxaIdMap:
ta['taxa_id'] = taxaIdMap[ta['taxa_id']]
else:
toRemove.append(ta)
for ta in toRemove:
toAdd.remove(ta)
if len(toAdd) > 0:
with engine.begin() as connection:
connection.execute(Gene.__table__.insert().
values(toAdd))
toAdd = []
## show progress
if totalRecords in wayPoints:
print("\t%s / %s"%(totalRecords,total))
print('committing changes...')
toRemove = []
for ta in toAdd:
if ta['taxa_id'] in taxaIdMap:
ta['taxa_id'] = taxaIdMap[ta['taxa_id']]
else:
toRemove.append(ta)
for ta in toRemove:
toAdd.remove(ta)
if len(toAdd) > 0:
with engine.begin() as connection:
connection.execute(Gene.__table__.insert().
values(toAdd))
## clean up
geneInfoFid.close()
timeStr = "...total time taken: %s"%time.strftime('%H:%M:%S', time.gmtime(time.time()-timeStart))
addedStr = "...%s unique genes were added."%totalRecords
return timeStr,addedStr
def populate_taxon_table(engine):
"""
given a list of taxon ids populate the taxon table
populates all taxa
"""
config = Configure()
namesFile = os.path.join(config.log['data'],"names.dmp")
if os.path.exists(namesFile) == False:
raise Exception("Cannot find names.dmp... exiting")
namesFID = open(namesFile,'rU')
taxaCount = 0
timeStart = time.time()
toAdd = {}
taxaID = None
debug = 0
for linja in namesFID:
debug += 1
linja = linja.rstrip("\n")
linja = linja.split("|")
linja = [re.sub("\t","",element) for element in linja]
scientificName,commonName = None,None
if linja[3] == 'scientific name':
taxaID = linja[0]
scientificName = linja[1]
elif re.search("common name",linja[3]):
taxaID = linja[0]
commonName = linja[1]
else:
continue
if taxaID in ['root']:
continue
## if record does not exist
if taxaID not in toAdd:
taxaCount += 1
if len(toAdd) >= 300000:
with engine.begin() as connection:
connection.execute(Taxon.__table__.insert().
values(toAdd.values()))
toAdd = {}
toAdd[taxaID] = {'ncbi_id':taxaID,'name':None,'common_name_1':None,
'common_name_2':None,'common_name_3':None}
## if record exists add a common name
if taxaID in toAdd and scientificName != None:
toAdd[taxaID]['name'] = scientificName
elif taxaID in toAdd and commonName != None:
if toAdd[taxaID]['common_name_1'] == None:
toAdd[taxaID]['common_name_1'] = commonName
elif toAdd[taxaID]['common_name_2'] == None:
toAdd[taxaID]['common_name_2'] = commonName
elif toAdd[taxaID]['common_name_3'] == None:
toAdd[taxaID]['common_name_3'] = commonName
else:
continue
print('committing changes...')
with engine.begin() as connection:
connection.execute(Taxon.__table__.insert().
values(toAdd.values()))
namesFID.close()
timeStr = "...total time taken: %s"%time.strftime('%H:%M:%S', time.gmtime(time.time()-timeStart))
addedStr = "...%s unique taxa were added."%taxaCount
return timeStr, addedStr
optlist, args = getopt.getopt(sys.argv[1:], 'v')
except getopt.GetoptError:
print(getopt.GetoptError)
print(sys.argv[0] + "-v")
print("... the verbose flag (-v) may be used")
sys.exit()
VERBOSE = False
RUNALL = False
for o, a in optlist:
if o == '-v':
VERBOSE = True
## ensure config is setup
config = Configure()
if config.log['dbname'] == '':
raise Exception("Config file is not setup")
## Database tests
from .DatabaseTest import *
DatabaseTestSuite = unittest.TestLoader().loadTestsFromTestCase(DatabaseTest)
DatabaseSuite = unittest.TestSuite([DatabaseTestSuite])
## GeneOntology tests
from .GeneOntologyTest import *
GeneOntologyTestSuite = unittest.TestLoader().loadTestsFromTestCase(
GeneOntologyTest)
GeneOntologySuite = unittest.TestSuite([GeneOntologyTestSuite])
def populate_go_annotations(totalAnnotations,session,engine):
"""
read the annotation file into a dictionary
This will take some time
This function is intended for use with
http://www.geneontology.org/GO.format.gaf-2_0.shtml
"""
timeStart = time.time()
config = Configure()
taxaList = config.log['taxa']
toAdd = []
annotationFile = get_annotation_file()
annotationFid = open(annotationFile,'rU')
wayPoints = [round(int(w)) for w in np.linspace(0,totalAnnotations,20)]
annotationCount = 0
print("...loading mappers")
termIdMap = goterm_mapper(session)
taxaIdMap = taxa_mapper(session)
uniprotIdMap = uniprot_mapper(session)
print("...populating rows")
def queue_entry(goId,evidenceCode,pubmedRefs,uniprotId,geneId,taxon,toAdd,mapper,ignoredAnnotations):
## remove invalid term ids
if not goId in termIdMap:
queryTerm = session.query(GoTerm).filter_by(alternate_id=goId).first()
if queryTerm == None:
return
go_db_id = queryTerm.id
else:
go_db_id = termIdMap[goId]
## remove invalid uniprot ids
if uniprotId and uniprotId not in mapper:
return
if uniprotId:
uniprot_db_id = mapper[uniprotId]
else:
uniprot_db_id = None
## remove invalid gene ids
if geneId and geneId not in mapper:
return
if geneId:
gene_db_id = mapper[geneId]
else:
gene_db_id = None
## ignore annotations that have an outdated taxon
if taxon not in taxaIdMap:
ignoredAnnotations += 1
return
## get the taxa foreign key
taxon_db_id = taxaIdMap[taxon]
toAdd.append({'go_term_id':go_db_id,'evidence_code':evidenceCode,
'pubmed_refs':pubmedRefs,'uniprot_id':uniprot_db_id,
'gene_id':gene_db_id,'taxa_id':taxon_db_id})
## add annotations from uniprot annotation file
ignoredAnnotationsUniprot = 0
print("...getting annotations from gene_association (uniprot)")
for record in annotationFid:
record = record[:-1].split("\t")
## check that it is a uniprot entry
if record[0][0] == "!":
continue
if record[0] != 'UniProtKB':
continue
uniprotId = record[1]
dbObjectSymbol = record[2]
goId = record[4]
pubmedRefs = record[5]
evidenceCode = record[6]
aspect = record[8]
uniprotEntry = record[10]
goTermName = record[11]
taxon = re.sub("taxon:","",record[12])
date = record[13]
assignedBy = record[14]
if taxon not in taxaList:
continue
## parse the uniprot Entry
if re.search("\|",uniprotEntry):
uniprotEntry = re.split("\|",uniprotEntry)[0]
## ignore annotations with multiple species
if re.search("\|",taxon):
continue
## update progress
annotationCount += 1
if annotationCount in wayPoints:
print("\t%s / %s"%(annotationCount,totalAnnotations))
queue_entry(goId,evidenceCode,pubmedRefs,uniprotEntry,None,taxon,toAdd,
uniprotIdMap,ignoredAnnotationsUniprot)
if len(toAdd) >= 100000: # 100000
with engine.begin() as connection:
connection.execute(GoAnnotation.__table__.insert().
values(toAdd))
toAdd = []
print('committing final changes...')
print('ignored annotations after uniprot... %s'%(ignoredAnnotationsUniprot))
with engine.begin() as connection:
connection.execute(GoAnnotation.__table__.insert().
values(toAdd))
del uniprotIdMap
annotationFid.close()
## add annotations from gene2go
gene2goFile = get_gene2go_file()
gene2goFid = open(gene2goFile,'rU')
ignoredAnnotationsGene = 0
print("...getting annotations from gene2go")
header = gene2goFid.__next__()
geneIdMap = gene_mapper(session)
toAdd = []
for record in gene2goFid:
record = record.rstrip("\n")
record = record.split("\t")
if re.search("^\#",record[0]) or len(record) != 8:
continue
taxon = record[0]
ncbiId = record[1]
goId = record[2]
evidenceCode = record[3]
qualifier = record[4]
go_term_description = record[5]
pubmedRefs = record[6]
go_aspect = record[7]
annotationCount += 1
if taxon not in taxaList:
continue
if annotationCount in wayPoints:
print("\t%s / %s"%(annotationCount,totalAnnotations))
queue_entry(goId,evidenceCode,pubmedRefs,None,ncbiId,taxon,toAdd,
geneIdMap,ignoredAnnotationsGene)
if len(toAdd) >= 100000: #100000
with engine.begin() as connection:
connection.execute(GoAnnotation.__table__.insert().
values(toAdd))
toAdd = []
print('ignored annotations after gene2go... %s'%(ignoredAnnotationsGene))
print('committing final changes...')
with engine.begin() as connection:
connection.execute(GoAnnotation.__table__.insert().
values(toAdd))
timeStr = "...total time taken: %s"%time.strftime('%H:%M:%S', time.gmtime(time.time()-timeStart))
addedStr = "...%s unique go annotation entries were added."%annotationCount
return timeStr,addedStr,(ignoredAnnotationsUniprot,ignoredAnnotationsGene)
