Mercurial > repos > yufei-luo > s_mart
diff SMART/Java/Python/adaptorStripper.py @ 6:769e306b7933
Change the repository level.
author | yufei-luo |
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date | Fri, 18 Jan 2013 04:54:14 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SMART/Java/Python/adaptorStripper.py Fri Jan 18 04:54:14 2013 -0500 @@ -0,0 +1,115 @@ +#! /usr/bin/env python +# +# Copyright INRA-URGI 2009-2010 +# +# This software is governed by the CeCILL license under French law and +# abiding by the rules of distribution of free software. You can use, +# modify and/ or redistribute the software under the terms of the CeCILL +# license as circulated by CEA, CNRS and INRIA at the following URL +# "http://www.cecill.info". +# +# As a counterpart to the access to the source code and rights to copy, +# modify and redistribute granted by the license, users are provided only +# with a limited warranty and the software's author, the holder of the +# economic rights, and the successive licensors have only limited +# liability. +# +# In this respect, the user's attention is drawn to the risks associated +# with loading, using, modifying and/or developing or reproducing the +# software by the user in light of its specific status of free software, +# that may mean that it is complicated to manipulate, and that also +# therefore means that it is reserved for developers and experienced +# professionals having in-depth computer knowledge. Users are therefore +# encouraged to load and test the software's suitability as regards their +# requirements in conditions enabling the security of their systems and/or +# data to be ensured and, more generally, to use and operate it in the +# same conditions as regards security. +# +# The fact that you are presently reading this means that you have had +# knowledge of the CeCILL license and that you accept its terms. +# +"""Remove adaptors""" + +import os +from optparse import OptionParser +from SMART.Java.Python.structure.Sequence import Sequence +from SMART.Java.Python.structure.SequenceList import SequenceList +from commons.core.parsing.FastaParser import FastaParser +from commons.core.writer.FastaWriter import FastaWriter +from SMART.Java.Python.misc.Progress import Progress + + +def distance (string1, string2): + if len(string1) != len(string2): + return None + distance = 0 + for i in range(0, len(string1)): + if string1[i] != string2[i]: + distance += 1 + return distance + + + +if __name__ == "__main__": + nbRemaining = 0 + + # parse command line + description = "Adaptor Stripper v1.0.1: Remove the adaptor of a list of reads. [Category: Personnal]" + + parser = OptionParser(description = description) + parser.add_option("-i", "--input", dest="inputFileName", action="store", type="string", help="input file [compulsory] [format: file in FASTA format]") + parser.add_option("-o", "--output", dest="outputFileName", action="store", type="string", help="output file [compulsory] [format: output file in FASTA format]") + parser.add_option("-5", "--5primeAdaptor", dest="fivePrimeAdaptor", action="store", type="string", help="five prime adaptor [format: string]") + parser.add_option("-3", "--3primeAdaptor", dest="threePrimeAdaptor", action="store", type="string", help="three prime adaptor [format: string]") + parser.add_option("-d", "--5primeDist", dest="fivePrimeDistance", action="store", default=3, type="int", help="five prime distance [format: int] [default: 3]") + parser.add_option("-e", "--3primeDist", dest="threePrimeDistance", action="store", default=3, type="int", help="three prime distance [format: int [default: 3]]") + parser.add_option("-m", "--3primeSize", dest="threePrimeSize", action="store", default=10, type="int", help="three prime size [format: int] [default: 10]") + parser.add_option("-v", "--verbosity", dest="verbosity", action="store", default=1, type="int", help="trace level [format: int] [default: 1]") + parser.add_option("-l", "--log", dest="log", action="store_true", default=False, help="write a log file [format: bool] [default: false]") + (options, args) = parser.parse_args() + + if options.log: + logHandle = open(options.outputFileName + ".log", "w") + + + writer = FastaWriter(options.outputFileName + ".fas", options.verbosity) + sequenceParser = FastaParser(options.inputFileName, options.verbosity) + nbSequences = sequenceParser.getNbSequences() + + # treat sequences + progress = Progress(sequenceParser.getNbSequences(), "Analyzing " + options.inputFileName, options.verbosity) + for sequence in sequenceParser.getIterator(): + fivePrimeAdaptor = sequence.getSequence()[0:len(options.fivePrimeAdaptor)] + threePrimeAdaptor = sequence.getSequence()[len(sequence.sequence)-len(options.threePrimeAdaptor):] + + # check 5' adaptor + fivePrimeDistance = distance(fivePrimeAdaptor, options.fivePrimeAdaptor) + # check 3' adaptor + threePrimeDistance = len(threePrimeAdaptor) + for i in range(options.threePrimeSize, len(threePrimeAdaptor)+1): + threePrimeDistance = min(threePrimeDistance, distance(threePrimeAdaptor[-i:], options.threePrimeAdaptor[:i])) + + # sort candidates + if fivePrimeDistance > options.fivePrimeDistance: + if options.log: + logHandle.write("Sequence %s does not start with the right adaptor (%s != %s)\n" % (sequence.getSequence(), fivePrimeAdaptor, options.fivePrimeAdaptor)) + elif threePrimeDistance > options.threePrimeDistance: + if options.log: + logHandle.write("Sequence %s does not end with the right adaptor (%s != %s)\n" % (sequence.getSequence(), threePrimeAdaptor, options.threePrimeAdaptor)) + else: + nbRemaining += 1 + sequence.setSequence(sequence.getSequence()[len(options.fivePrimeAdaptor):len(sequence.getSequence())-len(options.threePrimeAdaptor)]) + writer.addSequence(sequence) + + progress.inc() + + progress.done() + + if options.log: + logHandle.close() + + writer.write() + + print "kept %i over %i (%.f%%)" % (nbRemaining, nbSequences, float(nbRemaining) / nbSequences * 100) + +