// Convert references[...].title in reference.fasta to their corresponding
// indices in the title table.
void ConvertTitlesToTitleTableIndices(vector<FASTASequence> & references,
string & titleTableName) {
TitleTable tt;
tt.Read(titleTableName);
for(int i = 0; i < references.size(); i++) {
string title = references[i].GetTitle();
int idx = -1;
if (tt.Lookup(title, idx)) {
stringstream ss;
ss << idx;
references[i].CopyTitle(ss.str());
} else {
cout << "ERROR, reference " << title << " does not exist "
<< " in the title table " << titleTableName << ". The "
<< "reference fasta and the title table do not match."
<< endl;
exit(1);
}
}
tt.Free();
}
int main(int argc, char* argv[]) {
string refGenomeFileName = "";
string lengthModelFileName = "";
string outputModelFileName = "";
DNALength numBasesPerFile = 0;
string sourceReadsFileName = "";
string titleTableFileName = "";
int numBasH5Files = 1;
string basH5BaseFileName = "simulated";
string movieName = "m101211_092754_00114_cSIM_s1_p0";
bool doRandGenInit = true;
bool usePosMap = false;
bool printPercentRepeat = false;
string posMapFileName = "";
vector<string> movieNames;
bool useLengthModel = false;
bool useFixedLength = false;
ofstream posMapFile;
int scaledLength = 0;
int fixedLength = 0;
int nBasFiles = 1;
bool useLengthsModel = true;
bool printHelp = false;
// Look to see if the refAsReads flag is specified anywhere before
// parsing the command line.
CommandLineParser clp;
string commandLine;
string helpString;
SetHelp(helpString);
vector<string> fns;
clp.RegisterStringOption("genome", &refGenomeFileName, "");
clp.RegisterIntOption("numBasesPerFile", (int*)&numBasesPerFile, "",
CommandLineParser::PositiveInteger);
clp.RegisterStringOption("sourceReads", &sourceReadsFileName, "");
clp.RegisterStringOption("lengthModel", &lengthModelFileName, "");
clp.RegisterIntOption("fixedLength", &fixedLength, "",
CommandLineParser::PositiveInteger);
clp.RegisterFlagOption("lengthModel", &useLengthModel, "");
clp.RegisterStringOption("movieName", &movieName, "");
clp.RegisterStringOption("titleTable", &titleTableFileName, "");
clp.RegisterStringOption("baseFileName", &basH5BaseFileName, "");
clp.RegisterIntOption("nFiles", &nBasFiles, "",
CommandLineParser::PositiveInteger);
clp.RegisterIntOption("meanLength", &scaledLength, "",
CommandLineParser::PositiveInteger);
clp.RegisterStringOption("posMap", &posMapFileName, "");
clp.RegisterFlagOption("printPercentRepeat", &printPercentRepeat, "");
clp.RegisterFlagOption("h", &printHelp, "");
clp.SetHelp(helpString);
clp.ParseCommandLine(argc, argv, fns);
clp.CommandLineToString(argc, argv, commandLine);
clp.SetProgramName("alchemy");
outputModelFileName = fns[0];
if (argc <= 1 or printHelp or outputModelFileName == "") {
cout << helpString << endl;
exit(0);
}
if (usePosMap) {
CrucialOpen(posMapFileName, posMapFile, std::ios::out);
}
if (sourceReadsFileName == "" and fixedLength == 0) {
useLengthModel = true;
}
if (useLengthModel and fixedLength != 0) {
cout << "ERROR! You must either use a length model or a fixed length." << endl;
exit(1);
}
if (sourceReadsFileName == "" and numBasesPerFile == 0) {
cout << "ERROR! You must specify either a set of read to use as " << endl
<< "original reads for simulation or the total number of bases " << endl
<< "to simulate in each bas.h5 file." << endl;
exit(1);
}
if (sourceReadsFileName == "" and refGenomeFileName == "") {
cout << "ERROR! You must specify a genome to sample reads from or a set of read "<<endl
<< "to use as original reads for simulation." << endl;
exit(1);
}
if (fixedLength != 0 and refGenomeFileName == "") {
cout << "ERROR! You must specify a genome file if using a fixed length." << endl;
exit(1);
}
if ((fixedLength != 0 or scaledLength != 0) and sourceReadsFileName != "") {
cout << "ERROR! You cannot specify a fixed length nor mean length with a source " << endl
<< "reads file. The read lengths are taken from the source reads or the length model." << endl;
exit(1);
}
LengthHistogram lengthHistogram;
OutputSampleListSet outputModel(0);
TitleTable titleTable;
if (doRandGenInit) {
InitializeRandomGeneratorWithTime();
}
//
// Read models.
//
if (titleTableFileName != "") {
titleTable.Read(titleTableFileName);
}
outputModel.Read(outputModelFileName);
if (useLengthModel) {
lengthHistogram.BuildFromAlignmentLengths(outputModel.lengths);
}
vector<int> alignmentLengths;
int meanAlignmentLength;
if (scaledLength != 0 and useLengthModel) {
//
// Scale the histogram so that the average length is 'scaledLength'.
//
// 1. Integrate histogram
long totalLength = 0;
long totalSamples = 0;
int hi;
for (hi = 0; hi < lengthHistogram.lengthHistogram.cdf.size()-1; hi++) {
int ni;
ni = lengthHistogram.lengthHistogram.cdf[hi+1] - lengthHistogram.lengthHistogram.cdf[hi];
totalLength += ni * lengthHistogram.lengthHistogram.data[hi];
}
totalSamples = lengthHistogram.lengthHistogram.cdf[lengthHistogram.lengthHistogram.cdf.size()-1];
float meanSampleLength = totalLength / (1.0*totalSamples);
float fractionIncrease = scaledLength / meanSampleLength;
for (hi = 0; hi < lengthHistogram.lengthHistogram.cdf.size(); hi++) {
lengthHistogram.lengthHistogram.data[hi] *= fractionIncrease;
}
}
FASTAReader inReader, seqReader;
vector<FASTASequence> reference;
DNALength refLength = 0;
int i;
if (refGenomeFileName != "") {
inReader.Init(refGenomeFileName);
inReader.ReadAllSequences(reference);
for (i = 0; i < reference.size(); i++) {
refLength += reference[i].length;
}
}
if (sourceReadsFileName != "") {
seqReader.Init(sourceReadsFileName);
}
ofstream readsFile;
//
// Create and simulate bas.h5 files.
//
int baseFileIndex;
bool readsRemain = true;
for (baseFileIndex = 0; ((sourceReadsFileName == "" and baseFileIndex < nBasFiles) // case 1 is reads are generated by file
or (sourceReadsFileName != "" and readsRemain)); // case 2 is reads are generated by an input file.
baseFileIndex++) {
//
// Prep the base file for writing.
//
stringstream fileNameStrm, movieNameStrm;
//string movieName = "m000000_000000_00000_cSIMULATED_s";
movieNameStrm << movieName << baseFileIndex << "_p0";
string fullMovieName = movieNameStrm.str();
fileNameStrm << fullMovieName << ".bas.h5";
HDFBasWriter basWriter;
HDFRegionTableWriter regionWriter;
//
// This is mainly used to create the atributes.
//
RegionTable regionTable;
regionTable.CreateDefaultAttributes();
basWriter.SetPlatform(Springfield);
//
// Use a fixed set of fields for now.
//
// These are all pulled from the outputModel.
basWriter.IncludeField("Basecall");
basWriter.IncludeField("QualityValue");
basWriter.IncludeField("SubstitutionQV");
basWriter.IncludeField("SubstitutionTag");
basWriter.IncludeField("InsertionQV");
basWriter.IncludeField("DeletionQV");
basWriter.IncludeField("DeletionTag");
basWriter.IncludeField("WidthInFrames");
basWriter.IncludeField("PreBaseFrames");
basWriter.IncludeField("PulseIndex");
vector<unsigned char> qualityValue, substitutionQV, substitutionTag, insertionQV, deletionQV, deletionTag;
vector<HalfWord> widthInFrames, preBaseFrames, pulseIndex;
// Just go from 0 .. hole Number
basWriter.IncludeField("HoleNumber");
// Fixed to 0.
basWriter.IncludeField("HoleXY");
if (usePosMap == false) {
basWriter.IncludeField("SimulatedSequenceIndex");
basWriter.IncludeField("SimulatedCoordinate");
}
basWriter.SetChangeListID("1.3.0.50.104380");
DNALength numSimulatedBases = 0;
FASTASequence sampleSeq;
//sampleSeq.length = readLength;
int maxRetry = 10000000;
int retryNumber = 0;
int numReads = 0;
int readLength = 0;
while (numBasesPerFile == 0 or numSimulatedBases < numBasesPerFile) {
DNALength seqIndex, seqPos;
if (useLengthModel or fixedLength) {
if (useLengthModel) {
lengthHistogram.GetRandomLength(readLength);
}
else {
readLength = fixedLength;
}
}
if (refGenomeFileName != "") {
FindRandomPos(reference, seqIndex, seqPos, readLength + (outputModel.keyLength - 1));
sampleSeq.seq = &reference[seqIndex].seq[seqPos];
sampleSeq.length = readLength + (outputModel.keyLength - 1);
assert(reference[seqIndex].length >= sampleSeq.length);
}
else if (sourceReadsFileName != "") {
if (seqReader.GetNext(sampleSeq) == false) {
readsRemain = false;
break;
}
if (sampleSeq.length < outputModel.keyLength) {
continue;
}
//
// Now attempt to parse the position from the fasta title.
//
if (useLengthModel) {
int tryNumber = 0;
readLength = 0;
int maxNTries = 1000;
int tryBuffer[5] = {-1,-1,-1,-1,-1};
while (tryNumber < maxNTries and readLength < outputModel.keyLength) {
lengthHistogram.GetRandomLength(readLength);
readLength = sampleSeq.length = min(sampleSeq.length, (unsigned int) readLength);
tryBuffer[tryNumber%5] = readLength;
tryNumber++;
}
if (tryNumber >= maxNTries) {
cout << "ERROR. Could not generate a read length greater than the " << outputModel.keyLength << " requried " <<endl
<< "minimum number of bases using the length model specified in the alchemy." <<endl
<< "model. Something is either wrong with the model or the context length is too large." <<endl;
cout << "The last few tries were: " << tryBuffer[0] << " " << tryBuffer[1] << " " << tryBuffer[2] << " " << tryBuffer[3] << " " << tryBuffer[4] << endl;
exit(1);
}
}
readLength = sampleSeq.length;
vector<string> tokens;
Tokenize(sampleSeq.title, "|", tokens);
if (tokens.size() == 4) {
seqPos = atoi(tokens[2].c_str());
if (titleTableFileName == "") {
seqIndex = 0;
}
else {
int index;
titleTable.Lookup(tokens[1], index);
seqIndex = index;
}
}
else {
seqPos = 0;
}
}
//
// If this is the first read printed to the base file, initialize it.
//
if (numSimulatedBases == 0) {
basWriter.Initialize(fileNameStrm.str(), movieNameStrm.str(), Springfield);
regionWriter.Initialize(basWriter.pulseDataGroup);
}
numSimulatedBases += readLength;
int p;
// create the sample sequence
int contextLength = outputModel.keyLength;
int contextMiddle = contextLength / 2;
string outputString;
int nDel = 0;
int nIns = 0;
//
// Simulate to beyond the sample length.
//
qualityValue.clear();
substitutionQV.clear();
substitutionTag.clear();
insertionQV.clear();
deletionQV.clear();
deletionTag.clear();
pulseIndex.clear();
widthInFrames.clear();
preBaseFrames.clear();
assert(sampleSeq.length > contextMiddle + 1);
for (p = contextMiddle;
p < sampleSeq.length - contextMiddle - 1; p++) {
string refContext;
refContext.assign((const char*) &sampleSeq.seq[p-contextMiddle], contextLength);
string outputContext;
int contextWasFound;
OutputSample sample;
int i;
for (i = 0; i < refContext.size(); i++) {
refContext[i] = toupper(refContext[i]);
}
outputModel.SampleRandomSample(refContext, sample);
if (sample.type == OutputSample::Deletion ) {
//
// There was a deletion. Advance in reference, then output
// the base after the deletion.
//
p++;
++nDel;
}
int cp;
//
// Add the sampled context, possibly multiple characters because of an insertion.
//
for (i = 0; i < sample.nucleotides.size(); i++) {
outputString.push_back(sample.nucleotides[i]);
qualityValue.push_back(sample.qualities[i].qv[0]);
deletionQV.push_back(sample.qualities[i].qv[1]);
insertionQV.push_back(sample.qualities[i].qv[2]);
substitutionQV.push_back(sample.qualities[i].qv[3]);
deletionTag.push_back(sample.qualities[i].tags[0]);
substitutionTag.push_back(sample.qualities[i].tags[1]);
pulseIndex.push_back(sample.qualities[i].frameValues[0]);
preBaseFrames.push_back(sample.qualities[i].frameValues[1]);
widthInFrames.push_back(sample.qualities[i].frameValues[2]);
}
nIns += sample.qualities.size() - 1;
}
if (outputString.find('N') != outputString.npos or
outputString.find('n') != outputString.npos) {
cout << "WARNING! The sampled string " << endl << outputString << endl
<< "should not contain N's, but it seems to. This is being ignored "<<endl
<< "for now so that simulation may continue, but this shouldn't happen"<<endl
<< "and is really a bug." << endl;
numSimulatedBases -= readLength;
continue;
}
//
// Ok, done creating the read, now time to create some quality values!!!!!
//
SMRTSequence read;
read.length = outputString.size();
read.Allocate(read.length);
memcpy(read.seq, outputString.c_str(), read.length * sizeof(unsigned char));
assert(qualityValue.size() == read.length * sizeof(unsigned char));
memcpy(read.qual.data, &qualityValue[0], read.length * sizeof(unsigned char));
memcpy(read.deletionQV.data, &deletionQV[0], read.length * sizeof(unsigned char));
memcpy(read.insertionQV.data, &insertionQV[0], read.length * sizeof(unsigned char));
memcpy(read.substitutionQV.data, &substitutionQV[0], read.length * sizeof(unsigned char));
memcpy(read.deletionTag, &deletionTag[0], read.length * sizeof(unsigned char));
memcpy(read.substitutionTag, &substitutionTag[0], read.length * sizeof(unsigned char));
memcpy(read.pulseIndex, &pulseIndex[0], read.length * sizeof(int));
memcpy(read.preBaseFrames, &preBaseFrames[0], read.length * sizeof(HalfWord));
memcpy(read.widthInFrames, &widthInFrames[0], read.length * sizeof(HalfWord));
//
// The pulse index for now is just fake data.
//
int i;
for (i = 0; i < read.length; i++) {
read.pulseIndex[i] = 1;
}
read.xy[0] = seqIndex;
read.xy[1] = seqPos;
read.zmwData.holeNumber = numReads;
basWriter.Write(read);
// Record where this was simulated from.
if (usePosMap == false) {
basWriter.WriteSimulatedCoordinate(seqPos);
basWriter.WriteSimulatedSequenceIndex(seqIndex);
}
else {
posMapFile << fullMovieName << "/" << numReads << "/0_" << read.length << " " << seqIndex << " "<< seqPos;
if (printPercentRepeat) {
DNALength nRepeat = sampleSeq.GetRepeatContent();
posMapFile << " " << nRepeat*1.0/sampleSeq.length;
}
posMapFile << endl;
}
RegionAnnotation region;
region.row[0] = read.zmwData.holeNumber;
region.row[1] = 1;
region.row[2] = 0;
region.row[3] = read.length;
region.row[4] = 1000; // Should be enough.
regionWriter.Write(region);
region.row[1] = 2; // Rewrite for hq region encompassing everything.
regionWriter.Write(region);
if (sourceReadsFileName != "") {
sampleSeq.Free();
}
read.Free();
++numReads;
}
regionWriter.Finalize(regionTable.columnNames,
regionTable.regionTypes,
regionTable.regionDescriptions,
regionTable.regionSources);
basWriter.Close();
numReads = 0;
//
// The bas writer should automatically flush on closing.
//
}
if (usePosMap) {
posMapFile.close();
}
for (i = 0; i < reference.size(); i++) {
reference[i].Free();
}
}