view TEisotools-1.1.a/commons/core/coord/MatchUtils.py @ 15:255c852351c5 draft

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# Copyright INRA (Institut National de la Recherche Agronomique)
# http://www.inra.fr
# http://urgi.versailles.inra.fr
#
# 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
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# same conditions as regards security.
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# The fact that you are presently reading this means that you have had
# knowledge of the CeCILL license and that you accept its terms.

import os
import sys
import math
from commons.core.coord.Match import Match
from commons.core.utils.FileUtils import FileUtils
from commons.core.checker.RepetException import RepetException

# # Static methods for the manipulation of Match instances
#
class MatchUtils (object):

    # # Return a list with Match instances from the given file
    #
    # @param inFile name of a file in the Match format
    # @return a list of Match instances
    #
    @staticmethod
    def getMatchListFromFile(inFile):
        lMatchInstances = []
        inFileHandler = open(inFile, "r")
        while True:
            line = inFileHandler.readline()
            if line == "":
                break
            if line[0:10] == "query.name":
                continue
            m = Match()
            m.setFromString(line)
            lMatchInstances.append(m)
        inFileHandler.close()
        return lMatchInstances

    # #  Split a Match list in several Match lists according to the subject
    #
    #  @param lMatches a list of Match instances
    #  @return a dictionary which keys are subject names and values Match lists
    #
    @staticmethod
    def getDictOfListsWithSubjectAsKey(lMatches):
        dSubject2MatchList = {}
        for iMatch in lMatches:
            if not dSubject2MatchList.has_key(iMatch.range_subject.seqname):
                dSubject2MatchList[ iMatch.range_subject.seqname ] = []
            dSubject2MatchList[ iMatch.range_subject.seqname ].append(iMatch)
        return dSubject2MatchList

    # #  Split a Match list in several Match lists according to the query
    #
    #  @param lMatches a list of Match instances
    #  @return a dictionary which keys are query names and values Match lists
    #
    @staticmethod
    def getDictOfListsWithQueryAsKey (lMatches):
        dQuery2MatchList = {}
        for iMatch in lMatches:
            if not dQuery2MatchList.has_key(iMatch.range_query.seqname):
                dQuery2MatchList[ iMatch.range_query.seqname ] = []
            dQuery2MatchList[ iMatch.range_query.seqname ].append(iMatch)
        return dQuery2MatchList

    # # Write Match instances contained in the given list
    #
    # @param lMatches a list of Match instances
    # @param fileName name of the file to write the Match instances
    # @param mode the open mode of the file ""w"" or ""a""
    #
    @staticmethod
    def writeListInFile(lMatches, fileName, mode = "w", header = None):
        fileHandler = open(fileName, mode)
        if header:
            fileHandler.write(header)
        for iMatch in lMatches:
            iMatch.write(fileHandler)
        fileHandler.close()

    # # Give path id list from a list of Match instances
    #
    # @param lMatch list of Match instances
    # @return lId integer list
    #
    @staticmethod
    def getIdListFromMatchList(lMatch):
        lId = []
        for iMatch in lMatch:
            lId.append(iMatch.id)
        return lId

    # # Remove duplicated matches in a match list
    # ## replace old PyRepet.MatchDB.rmvDoublons()
    #
    # @param lMatch list of Match instances
    # @return lMatchesUniq match unique list
    #
    @staticmethod
    def rmvDuplicateMatches(lMatch):
        lMatchesUniq = []
        for match in lMatch:
            if len(lMatchesUniq) == 0:
                lMatchesUniq.append(match)
            else:
                nbDoublons = 0
                for m in lMatchesUniq:
                    if match.isDoublonWith(m):
                        nbDoublons += 1
                if nbDoublons == 0:
                    lMatchesUniq.append(match)

        for match1 in lMatchesUniq:
            for match2 in lMatchesUniq:
                if match1.id != match2.id:
                    if match1.isDoublonWith(match2):
                        raise RepetException ("*** Error: doublon not removed")
        return lMatchesUniq

    # # Return the list of queries 'included' in subjects when two different databanks are used.
    # #replace old pyRepet.MatchDB.filterDiffQrySbj()
    #
    # @param iBioseqDB bioseqDB databank of queries
    # @param thresIdentity float identity threshold
    # @param thresLength float length threshold
    # @param verbose int verbosity
    #
    # @return lMatches match list to keep according to length and identity thresholds
    # TODO: don't take into account match for sequence against itself. To do ?
    @staticmethod
    def filterDiffQrySbj(iBioseqDB, matchFile, thresIdentity = 0.95, thresLength = 0.98, verbose = 0):
        if verbose > 0:
            print "filtering matches (id>=%.2f,qlgth>=%.2f)..." % (thresIdentity, thresLength); sys.stdout.flush()

        thresIdentityPerc = math.floor(thresIdentity * 100)
        lQryToKeep = []
        dQry2Matches = MatchUtils.getDictOfListsWithQueryAsKey(MatchUtils.getMatchListFromFile(matchFile))

        for seqH in iBioseqDB.idx.keys():
            # keep it if it has no match
            if not dQry2Matches.has_key(seqH):
                if seqH not in lQryToKeep:
                    lQryToKeep.append(seqH)
            else:
                isConditionsMet = False
                for match in dQry2Matches[ seqH ]:
                    # check if they are above the thresholds
                    if match.identity >= thresIdentityPerc and match.query_length_perc >= thresLength:
                        isConditionsMet = True
                        break
                if not isConditionsMet and  seqH not in lQryToKeep:
                    lQryToKeep.append(seqH)
        return lQryToKeep

    # # Count the number of distinct matches involved in at least one match above the thresholds.
    # #replace old pyRepet.coord.MatchDB.getNbDistinctSbjWithThres() and pyRepet.coord.MatchDB.getNbDistinctSbjWithThres()
    #
    # @param thresIdentity float identity threshold
    # @param thresLength float length threshold
    #
    @staticmethod
    def getNbDistinctSequencesInsideMatchesWithThresh(lMatches, thresIdentity = 0.95, thresLength = 0.98, whatToCount = "query"):
        thresIdentityPerc = math.floor(thresIdentity * 100)
        countSbj = 0
        if whatToCount.lower() == "query":
            dMatches = MatchUtils.getDictOfListsWithQueryAsKey(lMatches)
        else:
            dMatches = MatchUtils.getDictOfListsWithSubjectAsKey(lMatches)

        for qry in dMatches.keys():
            countMatch = 0
            for match in dMatches[ qry ]:

                if match.identity >= thresIdentityPerc and getattr(match, whatToCount.lower() + "_length_perc") >= thresLength:
                    countMatch += 1
            if countMatch > 0:
                countSbj += 1
        return countSbj

    # # Convert a 'match' file (output from Matcher) into an 'align' file
    # # replace old parser.tab2align
    #
    # @param inFileName  a string input file name
    #
    @staticmethod
    def convertMatchFileToAlignFile(inFileName):
        basename = os.path.splitext(inFileName)[0]
        outFileName = "%s.align" % basename
        outFile = open(outFileName, "w")

        lMatches = MatchUtils.getMatchListFromFile(inFileName)

        for match in lMatches:
            string = "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n" % (match.getQueryName(), match.getQueryStart(), match.getQueryEnd(), match.getSubjectName(), match.getSubjectStart(), match.getSubjectEnd(), match.getEvalue(), match.getScore(), match.getIdentity())
            outFile.write(string)

        outFile.close()

    # # Convert a 'match' file (output from Matcher) into an 'abc' file (MCL input file)
    # for each match, compute coverage on the smallest seq using this expression
    #           Min (|QMatchEnd - QMatchStart + 1|,|SMatchEnd - SMatchStart + 1|)
    #coverage = -----------------------------------------------------------------
    #                             Min (QLength,SLength)
    #
    # Use this coverage for arc value. Matches of a sequence on itself are filtered.
    #
    # @param matchFileName string input match file name
    # @param outFileName string output abc file name
    # @param coverage float coverage filter threshold
    #
    @staticmethod
    def convertMatchFileIntoABCFileWithCoverageComputeOnSmallestSeq(matchFileName, outFileName, coverageThreshold = 0):
        sSeqNames = set()
        sSeqNamesUsed = set()
        with open(outFileName, "w") as outF:
            with open(matchFileName) as inF:
                inF.readline()
                for inLine in inF:
                    splittedLine = inLine.split("\t")
                    qName = splittedLine[0]
                    sName = splittedLine[6]
                    sSeqNames.add(qName)
                    sSeqNames.add(sName)
                    if qName != sName:
                        matchMin = min(abs(float(splittedLine[2]) - float(splittedLine[1]) + 1), abs(float(splittedLine[8]) - float(splittedLine[7]) + 1))
                        seqMin = min(int(splittedLine[3]) / float(splittedLine[4]), int(splittedLine[9]) / float(splittedLine[10]))
                        coverage = round(matchMin / seqMin, 2)
                        if coverage >= coverageThreshold:
                            outF.write("%s\n" % "\t".join([qName, sName, str(coverage)]))
                            sSeqNamesUsed.add(qName)
                            sSeqNamesUsed.add(sName)

        with open("%s.unused" % outFileName, "w") as outSeqNameOfUnusedMatchesF:
            for seqName in sorted(sSeqNames - sSeqNamesUsed):
                outSeqNameOfUnusedMatchesF.write("%s\n" % seqName)

        if FileUtils.isEmpty(outFileName):
            print "WARNING: '%s' is empty." % outFileName

    # # Convert a 'match' file (output from Matcher) into an 'abc' file (MCL input file)
    # Use coverage on query for arc value
    #
    # @param matchFileName string input match file name
    # @param outFileName string output abc file name
    # @param coverage float query coverage filter threshold
    #
    @staticmethod
    def convertMatchFileIntoABCFileOnQueryCoverage(matchFileName, outFileName, coverage = 0):
        with open(matchFileName) as inF:
                with open(outFileName, "w") as outF:
                    inF.readline()
                    for inLine in inF:
                        splittedLine = inLine.split("\t")
                        if float(splittedLine[4]) >= coverage:
                            outLine = "\t".join([splittedLine[0], splittedLine[6], splittedLine[4]])
                            outLine += "\n"
                            outF.write(outLine)

        if FileUtils.isEmpty(outFileName):
            print "WARNING: '%s' is empty." % outFileName

    # # Adapt the path IDs as the input file is the concatenation of several 'Match' files, and remove the extra header lines.
    # # replace old parser.tabnum2id
    #
    # @param fileName  a string input file name
    # @param  outputFileName  a string output file name (optional)
    #
    @staticmethod
    def generateMatchFileWithNewPathId(fileName, outputFileName = None):
        if outputFileName is None:
            outFile = open(fileName, "w")
        else:
            outFile = open(outputFileName, "w")
        outFile.write("query.name\tquery.start\tquery.end\tquery.length\tquery.length.%\tmatch.length.%\tsubject.name\tsubject.start\tsubject.end\tsubject.length\tsubject.length.%\tE.value\tScore\tIdentity\tpath\n")

        lMatches = MatchUtils.getMatchListFromFile(fileName)
        count = 1
        dMatchKeyIdcount = {}

        for match in lMatches:
            key_id = str(match.getIdentifier()) + "-" + match.getQueryName() + "-" + match.getSubjectName()
            if not key_id in dMatchKeyIdcount.keys():
                newPath = count
                count += 1
                dMatchKeyIdcount[ key_id ] = newPath
            else:
                newPath = dMatchKeyIdcount[ key_id ]

            match.id = newPath
            outFile.write(match.toString() + "\n")
        outFile.close()