int Revert::execute(int argc, char **argv)
{
// Extract command line arguments.
String inFile = "";
String outFile = "";
bool cigar = false;
bool qual = false;
bool noeof = false;
bool params = false;
bool rmBQ = false;
String rmTags = "";
myKeepTags = false;
ParameterList inputParameters;
BEGIN_LONG_PARAMETERS(longParameterList)
LONG_STRINGPARAMETER("in", &inFile)
LONG_STRINGPARAMETER("out", &outFile)
LONG_PARAMETER("cigar", &cigar)
LONG_PARAMETER("qual", &qual)
LONG_PARAMETER("keepTags", &myKeepTags)
LONG_PARAMETER("rmBQ", &rmBQ)
LONG_STRINGPARAMETER("rmTags", &rmTags)
LONG_PARAMETER("noeof", &noeof)
LONG_PARAMETER("params", ¶ms)
LONG_PHONEHOME(VERSION)
END_LONG_PARAMETERS();
inputParameters.Add(new LongParameters ("Input Parameters",
longParameterList));
// parameters start at index 2 rather than 1.
inputParameters.Read(argc, argv, 2);
// If no eof block is required for a bgzf file, set the bgzf file type to
// not look for it.
if(noeof)
{
// Set that the eof block is not required.
BgzfFileType::setRequireEofBlock(false);
}
// Check to see if the in file was specified, if not, report an error.
if(inFile == "")
{
usage();
inputParameters.Status();
// In file was not specified but it is mandatory.
std::cerr << "--in is a mandatory argument, "
<< "but was not specified" << std::endl;
return(-1);
}
if(outFile == "")
{
usage();
inputParameters.Status();
// In file was not specified but it is mandatory.
std::cerr << "--out is a mandatory argument, "
<< "but was not specified" << std::endl;
return(-1);
}
if(params)
{
inputParameters.Status();
}
// Open the input file for reading.
SamFile samIn;
samIn.OpenForRead(inFile);
// Open the output file for writing.
SamFile samOut;
samOut.OpenForWrite(outFile);
// Read the sam header.
SamFileHeader samHeader;
samIn.ReadHeader(samHeader);
// Write the sam header.
samOut.WriteHeader(samHeader);
SamRecord samRecord;
// Set returnStatus to success. It will be changed to the
// failure reason if any of the writes or updates fail.
SamStatus::Status returnStatus = SamStatus::SUCCESS;
// Keep reading records until ReadRecord returns false.
while(samIn.ReadRecord(samHeader, samRecord))
{
// Update the cigar & position.
if(cigar)
{
if(!updateCigar(samRecord))
{
// Failed to update the cigar & position.
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
returnStatus = samIn.GetStatus();
}
}
if(qual)
{
if(!updateQual(samRecord))
{
// Failed to update the quality.
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
returnStatus = samIn.GetStatus();
}
}
if(rmBQ)
{
if(!removeBQ(samRecord))
{
// Failed to remove BQ.
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
returnStatus = samIn.GetStatus();
}
}
if(rmTags != "")
{
if(!samRecord.rmTags(rmTags.c_str()))
{
// Failed to remove the specified tags.
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
returnStatus = samIn.GetStatus();
}
}
// Successfully read a record from the file, so write it.
if(!samOut.WriteRecord(samHeader, samRecord))
{
// Failed to write a record.
fprintf(stderr, "%s\n", samOut.GetStatusMessage());
returnStatus = samOut.GetStatus();
}
}
std::cerr << std::endl << "Number of records read = " <<
samIn.GetCurrentRecordCount() << std::endl;
std::cerr << "Number of records written = " <<
samOut.GetCurrentRecordCount() << std::endl;
// Since the reads were successful, return the status based
// on the status of the writes. If any failed, return
// their failure status.
return(returnStatus);
}
int Stats::execute(int argc, char **argv)
{
// Extract command line arguments.
String inFile = "";
String indexFile = "";
bool basic = false;
bool noeof = false;
bool params = false;
bool qual = false;
bool phred = false;
int maxNumReads = -1;
bool unmapped = false;
String pBaseQC = "";
String cBaseQC = "";
String regionList = "";
int excludeFlags = 0;
int requiredFlags = 0;
bool withinRegion = false;
int minMapQual = 0;
String dbsnp = "";
PosList *dbsnpListPtr = NULL;
bool baseSum = false;
int bufferSize = PileupHelper::DEFAULT_WINDOW_SIZE;
ParameterList inputParameters;
BEGIN_LONG_PARAMETERS(longParameterList)
LONG_PARAMETER_GROUP("Required Parameters")
LONG_STRINGPARAMETER("in", &inFile)
LONG_PARAMETER_GROUP("Types of Statistics")
LONG_PARAMETER("basic", &basic)
LONG_PARAMETER("qual", &qual)
LONG_PARAMETER("phred", &phred)
LONG_STRINGPARAMETER("pBaseQC", &pBaseQC)
LONG_STRINGPARAMETER("cBaseQC", &cBaseQC)
LONG_PARAMETER_GROUP("Optional Parameters")
LONG_INTPARAMETER("maxNumReads", &maxNumReads)
LONG_PARAMETER("unmapped", &unmapped)
LONG_STRINGPARAMETER("bamIndex", &indexFile)
LONG_STRINGPARAMETER("regionList", ®ionList)
LONG_INTPARAMETER("excludeFlags", &excludeFlags)
LONG_INTPARAMETER("requiredFlags", &requiredFlags)
LONG_PARAMETER("noeof", &noeof)
LONG_PARAMETER("params", ¶ms)
LONG_PARAMETER_GROUP("Optional phred/qual Only Parameters")
LONG_PARAMETER("withinRegion", &withinRegion)
LONG_PARAMETER_GROUP("Optional BaseQC Only Parameters")
LONG_PARAMETER("baseSum", &baseSum)
LONG_INTPARAMETER("bufferSize", &bufferSize)
LONG_INTPARAMETER("minMapQual", &minMapQual)
LONG_STRINGPARAMETER("dbsnp", &dbsnp)
END_LONG_PARAMETERS();
inputParameters.Add(new LongParameters ("Input Parameters",
longParameterList));
inputParameters.Read(argc-1, &(argv[1]));
// If no eof block is required for a bgzf file, set the bgzf file type to
// not look for it.
if(noeof)
{
// Set that the eof block is not required.
BgzfFileType::setRequireEofBlock(false);
}
// Check to see if the in file was specified, if not, report an error.
if(inFile == "")
{
usage();
inputParameters.Status();
// In file was not specified but it is mandatory.
std::cerr << "--in is a mandatory argument for stats, "
<< "but was not specified" << std::endl;
return(-1);
}
// Use the index file if unmapped or regionList is not empty.
bool useIndex = (unmapped|| (!regionList.IsEmpty()));
// IndexFile is required, so check to see if it has been set.
if(useIndex && (indexFile == ""))
{
// In file was not specified, so set it to the in file
// + ".bai"
indexFile = inFile + ".bai";
}
////////////////////////////////////////
// Setup in case pileup is used.
Pileup<PileupElementBaseQCStats> pileup(bufferSize);
// Initialize start/end positions.
myStartPos = 0;
myEndPos = -1;
// Open the output qc file if applicable.
IFILE baseQCPtr = NULL;
if(!pBaseQC.IsEmpty() && !cBaseQC.IsEmpty())
{
usage();
inputParameters.Status();
// Cannot specify both types of baseQC.
std::cerr << "Cannot specify both --pBaseQC & --cBaseQC." << std::endl;
return(-1);
}
else if(!pBaseQC.IsEmpty())
{
baseQCPtr = ifopen(pBaseQC, "w");
PileupElementBaseQCStats::setPercentStats(true);
}
else if(!cBaseQC.IsEmpty())
{
baseQCPtr = ifopen(cBaseQC, "w");
PileupElementBaseQCStats::setPercentStats(false);
}
if(baseQCPtr != NULL)
{
PileupElementBaseQCStats::setOutputFile(baseQCPtr);
PileupElementBaseQCStats::printHeader();
}
if((baseQCPtr != NULL) || baseSum)
{
PileupElementBaseQCStats::setMapQualFilter(minMapQual);
PileupElementBaseQCStats::setBaseSum(baseSum);
}
if(params)
{
inputParameters.Status();
}
// Open the file for reading.
SamFile samIn;
if(!samIn.OpenForRead(inFile))
{
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
return(samIn.GetStatus());
}
samIn.SetReadFlags(requiredFlags, excludeFlags);
// Set whether or not basic statistics should be generated.
samIn.GenerateStatistics(basic);
// Read the sam header.
SamFileHeader samHeader;
if(!samIn.ReadHeader(samHeader))
{
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
return(samIn.GetStatus());
}
// Open the bam index file for reading if we are
// doing unmapped reads (also set the read section).
if(useIndex)
{
samIn.ReadBamIndex(indexFile);
if(unmapped)
{
samIn.SetReadSection(-1);
}
if(!regionList.IsEmpty())
{
myRegionList = ifopen(regionList, "r");
}
}
//////////////////////////
// Read dbsnp if specified and doing baseQC
if(((baseQCPtr != NULL) || baseSum) && (!dbsnp.IsEmpty()))
{
// Read the dbsnp file.
IFILE fdbSnp;
fdbSnp = ifopen(dbsnp,"r");
// Determine how many entries.
const SamReferenceInfo& refInfo = samHeader.getReferenceInfo();
int maxRefLen = 0;
for(int i = 0; i < refInfo.getNumEntries(); i++)
{
int refLen = refInfo.getReferenceLength(i);
if(refLen >= maxRefLen)
{
maxRefLen = refLen + 1;
}
}
dbsnpListPtr = new PosList(refInfo.getNumEntries(),maxRefLen);
if(fdbSnp==NULL)
{
std::cerr << "Open dbSNP file " << dbsnp.c_str() << " failed!\n";
}
else if(dbsnpListPtr == NULL)
{
std::cerr << "Failed to init the memory allocation for the dbsnpList.\n";
}
else
{
// Read the dbsnp file.
StringArray tokens;
String buffer;
int position = 0;
int refID = 0;
// Loop til the end of the file.
while (!ifeof(fdbSnp))
{
// Read the next line.
buffer.ReadLine(fdbSnp);
// If it does not have at least 2 columns,
// continue to the next line.
if (buffer.IsEmpty() || buffer[0] == '#') continue;
tokens.AddTokens(buffer);
if(tokens.Length() < 2) continue;
if(!tokens[1].AsInteger(position))
{
std::cerr << "Improperly formatted region line, start position "
<< "(2nd column) is not an integer: "
<< tokens[1]
<< "; Skipping to the next line.\n";
continue;
}
// Look up the reference name.
refID = samHeader.getReferenceID(tokens[0]);
if(refID != SamReferenceInfo::NO_REF_ID)
{
// Reference id was found, so add it to the dbsnp
dbsnpListPtr->addPosition(refID, position);
}
tokens.Clear();
buffer.Clear();
}
}
ifclose(fdbSnp);
}
// Read the sam records.
SamRecord samRecord;
int numReads = 0;
//////////////////////
// Setup in case doing a quality count.
// Quality histogram.
const int MAX_QUAL = 126;
const int START_QUAL = 33;
uint64_t qualCount[MAX_QUAL+1];
for(int i = 0; i <= MAX_QUAL; i++)
{
qualCount[i] = 0;
}
const int START_PHRED = 0;
const int PHRED_DIFF = START_QUAL - START_PHRED;
const int MAX_PHRED = MAX_QUAL - PHRED_DIFF;
uint64_t phredCount[MAX_PHRED+1];
for(int i = 0; i <= MAX_PHRED; i++)
{
phredCount[i] = 0;
}
int refPos = 0;
Cigar* cigarPtr = NULL;
char cigarChar = '?';
// Exclude clips from the qual/phred counts if unmapped reads are excluded.
bool qualExcludeClips = excludeFlags & SamFlag::UNMAPPED;
//////////////////////////////////
// When not reading by sections, getNextSection returns true
// the first time, then false the next time.
while(getNextSection(samIn))
{
// Keep reading records from the file until SamFile::ReadRecord
// indicates to stop (returns false).
while(((maxNumReads < 0) || (numReads < maxNumReads)) && samIn.ReadRecord(samHeader, samRecord))
{
// Another record was read, so increment the number of reads.
++numReads;
// See if the quality histogram should be genereated.
if(qual || phred)
{
// Get the quality.
const char* qual = samRecord.getQuality();
// Check for no quality ('*').
if((qual[0] == '*') && (qual[1] == 0))
{
// This record does not have a quality string, so no
// quality processing is necessary.
}
else
{
int index = 0;
cigarPtr = samRecord.getCigarInfo();
cigarChar = '?';
refPos = samRecord.get0BasedPosition();
if(!qualExcludeClips && (cigarPtr != NULL))
{
// Offset the reference position by any soft clips
// by subtracting the queryIndex of this start position.
// refPos is now the start position of the clips.
refPos -= cigarPtr->getQueryIndex(0);
}
while(qual[index] != 0)
{
// Skip this quality if it is clipped and we are skipping clips.
if(cigarPtr != NULL)
{
cigarChar = cigarPtr->getCigarCharOpFromQueryIndex(index);
}
if(qualExcludeClips && Cigar::isClip(cigarChar))
{
// Skip a clipped quality.
++index;
// Increment the position.
continue;
}
if(withinRegion && (myEndPos != -1) && (refPos >= myEndPos))
{
// We have hit the end of the region, stop processing this
// quality string.
break;
}
if(withinRegion && (refPos < myStartPos))
{
// This position is not in the target.
++index;
// Update the position if this is found in the reference or a clip.
if(Cigar::foundInReference(cigarChar) || Cigar::isClip(cigarChar))
{
++refPos;
}
continue;
}
// Check for valid quality.
if((qual[index] < START_QUAL) || (qual[index] > MAX_QUAL))
{
if(qual)
{
std::cerr << "Invalid Quality found: " << qual[index]
<< ". Must be between "
<< START_QUAL << " and " << MAX_QUAL << ".\n";
}
if(phred)
{
std::cerr << "Invalid Phred Quality found: " << qual[index] - PHRED_DIFF
<< ". Must be between "
<< START_QUAL << " and " << MAX_QUAL << ".\n";
}
// Skip an invalid quality.
++index;
// Update the position if this is found in the reference or a clip.
if(Cigar::foundInReference(cigarChar) || Cigar::isClip(cigarChar))
{
++refPos;
}
continue;
}
// Increment the count for this quality.
++(qualCount[(int)(qual[index])]);
++(phredCount[(int)(qual[index]) - PHRED_DIFF]);
// Update the position if this is found in the reference or a clip.
if(Cigar::foundInReference(cigarChar) || Cigar::isClip(cigarChar))
{
++refPos;
}
++index;
}
}
}
// Check the next thing to do for the read.
if((baseQCPtr != NULL) || baseSum)
{
// Pileup the bases for this read.
pileup.processAlignmentRegion(samRecord, myStartPos, myEndPos, dbsnpListPtr);
}
}
// Done with a section, move on to the next one.
// New section, so flush the pileup.
pileup.flushPileup();
}
// Flush the rest of the pileup.
if((baseQCPtr != NULL) || baseSum)
{
// Pileup the bases.
pileup.processAlignmentRegion(samRecord, myStartPos, myEndPos, dbsnpListPtr);
PileupElementBaseQCStats::printSummary();
ifclose(baseQCPtr);
}
std::cerr << "Number of records read = " <<
samIn.GetCurrentRecordCount() << std::endl;
if(basic)
{
std::cerr << std::endl;
samIn.PrintStatistics();
}
// Print the quality stats.
if(qual)
{
std::cerr << std::endl;
std::cerr << "Quality\tCount\n";
for(int i = START_QUAL; i <= MAX_QUAL; i++)
{
std::cerr << i << "\t" << qualCount[i] << std::endl;
}
}
// Print the phred quality stats.
if(phred)
{
std::cerr << std::endl;
std::cerr << "Phred\tCount\n";
for(int i = START_PHRED; i <= MAX_PHRED; i++)
{
std::cerr << i << "\t" << phredCount[i] << std::endl;
}
}
SamStatus::Status status = samIn.GetStatus();
if(status == SamStatus::NO_MORE_RECS)
{
// A status of NO_MORE_RECS means that all reads were successful.
status = SamStatus::SUCCESS;
}
return(status);
}
int Convert::execute(int argc, char **argv)
{
// Extract command line arguments.
String inFile = "";
String outFile = "";
String refFile = "";
bool lshift = false;
bool noeof = false;
bool params = false;
bool useBases = false;
bool useEquals = false;
bool useOrigSeq = false;
bool recover = false;
ParameterList inputParameters;
BEGIN_LONG_PARAMETERS(longParameterList)
LONG_STRINGPARAMETER("in", &inFile)
LONG_STRINGPARAMETER("out", &outFile)
LONG_STRINGPARAMETER("refFile", &refFile)
LONG_PARAMETER("lshift", &lshift)
LONG_PARAMETER("noeof", &noeof)
LONG_PARAMETER("recover", &recover)
LONG_PARAMETER("params", ¶ms)
LONG_PARAMETER_GROUP("SequenceConversion")
EXCLUSIVE_PARAMETER("useBases", &useBases)
EXCLUSIVE_PARAMETER("useEquals", &useEquals)
EXCLUSIVE_PARAMETER("useOrigSeq", &useOrigSeq)
LONG_PHONEHOME(VERSION)
END_LONG_PARAMETERS();
inputParameters.Add(new LongParameters ("Input Parameters",
longParameterList));
// parameters start at index 2 rather than 1.
inputParameters.Read(argc, argv, 2);
// If no eof block is required for a bgzf file, set the bgzf file type to
// not look for it.
if(noeof)
{
// Set that the eof block is not required.
BgzfFileType::setRequireEofBlock(false);
}
// Check to see if the in file was specified, if not, report an error.
if(inFile == "")
{
printUsage(std::cerr);
inputParameters.Status();
// In file was not specified but it is mandatory.
std::cerr << "--in is a mandatory argument, "
<< "but was not specified" << std::endl;
return(-1);
}
if(outFile == "")
{
printUsage(std::cerr);
inputParameters.Status();
// In file was not specified but it is mandatory.
std::cerr << "--out is a mandatory argument, "
<< "but was not specified" << std::endl;
return(-1);
}
// Check to see if the ref file was specified.
// Open the reference.
GenomeSequence* refPtr = NULL;
if(refFile != "")
{
refPtr = new GenomeSequence(refFile);
}
SamRecord::SequenceTranslation translation;
if((useBases) && (refPtr != NULL))
{
translation = SamRecord::BASES;
}
else if((useEquals) && (refPtr != NULL))
{
translation = SamRecord::EQUAL;
}
else
{
useOrigSeq = true;
translation = SamRecord::NONE;
}
if(params)
{
inputParameters.Status();
}
// Open the input file for reading.
SamFile samIn;
if(recover) samIn.setAttemptRecovery(true);
samIn.OpenForRead(inFile);
// Open the output file for writing.
SamFile samOut;
samOut.OpenForWrite(outFile);
samOut.SetWriteSequenceTranslation(translation);
samOut.SetReference(refPtr);
// Read the sam header.
SamFileHeader samHeader;
samIn.ReadHeader(samHeader);
// Write the sam header.
samOut.WriteHeader(samHeader);
SamRecord samRecord;
// Set returnStatus to success. It will be changed
// to the failure reason if any of the writes fail.
SamStatus::Status returnStatus = SamStatus::SUCCESS;
while(1) {
try {
// Keep reading records until ReadRecord returns false.
while(samIn.ReadRecord(samHeader, samRecord))
{
// left shift if necessary.
if(lshift)
{
samRecord.shiftIndelsLeft();
}
// Successfully read a record from the file, so write it.
if(!samOut.WriteRecord(samHeader, samRecord))
{
// Failed to write a record.
fprintf(stderr, "%s\n", samOut.GetStatusMessage());
returnStatus = samOut.GetStatus();
}
}
break;
} catch (std::runtime_error e) {
std::cerr << "Caught runtime error: " << e.what() << "\n";
if(!recover) {
std::cerr << "Corrupted BAM file detected - consider using --recover option.\n";
break;
}
std::cerr << "Attempting to resync at next good BGZF block and BAM record.\n";
// XXX need to resync SamFile stream here
bool rc = samIn.attemptRecoverySync(checkSignature, SIGNATURE_LENGTH);
if(rc) {
std::cerr << "Successful resync - some data lost.\n";
continue; // succeeded
}
std::cerr << "Failed to re-sync on data stream.\n";
break; // failed to resync
}
}
std::cerr << std::endl << "Number of records read = " <<
samIn.GetCurrentRecordCount() << std::endl;
std::cerr << "Number of records written = " <<
samOut.GetCurrentRecordCount() << std::endl;
if(refPtr != NULL)
{
delete(refPtr);
}
// Since the reads were successful, return the status based
// on the status of the writes. If any failed, return
// their failure status.
return(returnStatus);
}
// main function
int TrimBam::execute(int argc, char ** argv)
{
SamFile samIn;
SamFile samOut;
int numTrimBaseL = 0;
int numTrimBaseR = 0;
bool noeof = false;
bool ignoreStrand = false;
bool noPhoneHome = false;
std::string inName = "";
std::string outName = "";
if ( argc < 5 ) {
usage();
std::cerr << "ERROR: Incorrect number of parameters specified\n";
return(-1);
}
inName = argv[2];
outName = argv[3];
static struct option getopt_long_options[] = {
// Input options
{ "left", required_argument, NULL, 'L'},
{ "right", required_argument, NULL, 'R'},
{ "ignoreStrand", no_argument, NULL, 'i'},
{ "noeof", no_argument, NULL, 'n'},
{ "noPhoneHome", no_argument, NULL, 'p'},
{ "nophonehome", no_argument, NULL, 'P'},
{ "phoneHomeThinning", required_argument, NULL, 't'},
{ "phonehomethinning", required_argument, NULL, 'T'},
{ NULL, 0, NULL, 0 },
};
int argIndex = 4;
if(argv[argIndex][0] != '-')
{
// This is the number of bases to trim off both sides
// so convert to a number.
numTrimBaseL = atoi(argv[argIndex]);
numTrimBaseR = numTrimBaseL;
++argIndex;
}
int c = 0;
int n_option_index = 0;
// Process any additional parameters
while ( ( c = getopt_long(argc, argv,
"L:R:in", getopt_long_options, &n_option_index) )
!= -1 )
{
switch(c)
{
case 'L':
numTrimBaseL = atoi(optarg);
break;
case 'R':
numTrimBaseR = atoi(optarg);
break;
case 'i':
ignoreStrand = true;
break;
case 'n':
noeof = true;
break;
case 'p':
case 'P':
noPhoneHome = true;
break;
case 't':
case 'T':
PhoneHome::allThinning = atoi(optarg);
break;
default:
fprintf(stderr,"ERROR: Unrecognized option %s\n",
getopt_long_options[n_option_index].name);
return(-1);
}
}
if(!noPhoneHome)
{
PhoneHome::checkVersion(getProgramName(), VERSION);
}
if(noeof)
{
// Set that the eof block is not required.
BgzfFileType::setRequireEofBlock(false);
}
if ( ! samIn.OpenForRead(inName.c_str()) ) {
fprintf(stderr, "***Problem opening %s\n",inName.c_str());
return(-1);
}
if(!samOut.OpenForWrite(outName.c_str())) {
fprintf(stderr, "%s\n", samOut.GetStatusMessage());
return(samOut.GetStatus());
}
fprintf(stderr,"Arguments in effect: \n");
fprintf(stderr,"\tInput file : %s\n",inName.c_str());
fprintf(stderr,"\tOutput file : %s\n",outName.c_str());
if(numTrimBaseL == numTrimBaseR)
{
fprintf(stderr,"\t#Bases to trim from each side : %d\n", numTrimBaseL);
}
else
{
fprintf(stderr,"\t#Bases to trim from the left of forward strands : %d\n",
numTrimBaseL);
fprintf(stderr,"\t#Bases to trim from the right of forward strands: %d\n",
numTrimBaseR);
if(!ignoreStrand)
{
// By default, reverse strands are treated the opposite.
fprintf(stderr,"\t#Bases to trim from the left of reverse strands : %d\n",
numTrimBaseR);
fprintf(stderr,"\t#Bases to trim from the right of reverse strands : %d\n",
numTrimBaseL);
}
else
{
// ignore strand, treating forward & reverse strands the same
fprintf(stderr,"\t#Bases to trim from the left of reverse strands : %d\n",
numTrimBaseL);
fprintf(stderr,"\t#Bases to trim from the right of reverse strands : %d\n",
numTrimBaseR);
}
}
// Read the sam header.
SamFileHeader samHeader;
if(!samIn.ReadHeader(samHeader))
{
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
return(samIn.GetStatus());
}
// Write the sam header.
if(!samOut.WriteHeader(samHeader))
{
fprintf(stderr, "%s\n", samOut.GetStatusMessage());
return(samOut.GetStatus());
}
SamRecord samRecord;
char seq[65536];
char qual[65536];
int i, len;
// Keep reading records until ReadRecord returns false.
while(samIn.ReadRecord(samHeader, samRecord)) {
// Successfully read a record from the file, so write it.
strcpy(seq,samRecord.getSequence());
strcpy(qual,samRecord.getQuality());
// Number of bases to trim from the left/right,
// set based on ignoreStrand flag and strand info.
int trimLeft = numTrimBaseL;
int trimRight = numTrimBaseR;
if(!ignoreStrand)
{
if(SamFlag::isReverse(samRecord.getFlag()))
{
// We are reversing the reverse reads,
// so swap the left & right trim counts.
trimRight = numTrimBaseL;
trimLeft = numTrimBaseR;
}
}
len = strlen(seq);
// Do not trim if sequence is '*'
if ( strcmp(seq, "*") != 0 ) {
bool qualValue = true;
if(strcmp(qual, "*") == 0)
{
qualValue = false;
}
int qualLen = strlen(qual);
if ( (qualLen != len) && qualValue ) {
fprintf(stderr,"ERROR: Sequence and Quality have different length\n");
return(-1);
}
if ( len < (trimLeft + trimRight) ) {
// Read Length is less than the total number of bases to trim,
// so trim the entire read.
for(i=0; i < len; ++i) {
seq[i] = 'N';
if ( qualValue ) {
qual[i] = '!';
}
}
}
else
{
// Read Length is larger than the total number of bases to trim,
// so trim from the left, then from the right.
for(i=0; i < trimLeft; ++i)
{
// Trim the bases from the left.
seq[i] = 'N';
if ( qualValue )
{
qual[i] = '!';
}
}
for(i = 0; i < trimRight; i++)
{
seq[len-i-1] = 'N';
if(qualValue)
{
qual[len-i-1] = '!';
}
}
}
samRecord.setSequence(seq);
samRecord.setQuality(qual);
}
if(!samOut.WriteRecord(samHeader, samRecord)) {
// Failed to write a record.
fprintf(stderr, "Failure in writing record %s\n", samOut.GetStatusMessage());
return(-1);
}
}
if(samIn.GetStatus() != SamStatus::NO_MORE_RECS)
{
// Failed to read a record.
fprintf(stderr, "%s\n", samIn.GetStatusMessage());
}
std::cerr << std::endl << "Number of records read = " <<
samIn.GetCurrentRecordCount() << std::endl;
std::cerr << "Number of records written = " <<
samOut.GetCurrentRecordCount() << std::endl;
if(samIn.GetStatus() != SamStatus::NO_MORE_RECS)
{
// Failed reading a record.
return(samIn.GetStatus());
}
// Since the reads were successful, return the status based
samIn.Close();
samOut.Close();
return 0;
}