@Override
public int doWork(String[] args) {
boolean compressed = false;
int maxRecordsInRAM = 100000;
long count = -1L;
File fileout = null;
com.github.lindenb.jvarkit.util.cli.GetOpt opt =
new com.github.lindenb.jvarkit.util.cli.GetOpt();
int c;
while ((c = opt.getopt(args, getGetOptDefault() + "o:n:N:T:b")) != -1) {
switch (c) {
case 'b':
compressed = true;
break;
case 'N':
maxRecordsInRAM = Integer.parseInt(opt.getOptArg());
break;
case 'n':
count = Long.parseLong(opt.getOptArg());
break;
case 'o':
fileout = new File(opt.getOptArg());
break;
case 'T':
this.addTmpDirectory(new File(opt.getOptArg()));
break;
default:
{
switch (handleOtherOptions(c, opt, null)) {
case EXIT_FAILURE:
return -1;
case EXIT_SUCCESS:
return 0;
default:
break;
}
}
}
}
if (count < -1L) // -1 == infinite
{
error("Bad count:" + count);
return -1;
}
SamReader samReader = null;
SAMRecordIterator iter = null;
SAMFileWriter samWriter = null;
Random random = new Random();
CloseableIterator<RandSamRecord> iter2 = null;
try {
SamFileReaderFactory.setDefaultValidationStringency(ValidationStringency.SILENT);
if (opt.getOptInd() == args.length) {
info("Reading from stdin");
samReader = SamFileReaderFactory.mewInstance().openStdin();
} else if (opt.getOptInd() + 1 == args.length) {
File filename = new File(args[opt.getOptInd()]);
info("Reading from " + filename);
samReader = SamFileReaderFactory.mewInstance().open(filename);
} else {
error("Illegal number of arguments.");
return -1;
}
SAMFileHeader header = samReader.getFileHeader();
header = header.clone();
header.setSortOrder(SortOrder.unsorted);
header.addComment("Processed with " + getProgramName() + " : " + getProgramCommandLine());
SAMFileWriterFactory sfw = new SAMFileWriterFactory();
sfw.setCreateIndex(false);
sfw.setCreateMd5File(false);
if (fileout == null) {
if (compressed) {
samWriter = sfw.makeBAMWriter(header, true, System.out);
} else {
samWriter = sfw.makeSAMWriter(header, true, System.out);
}
} else {
samWriter = sfw.makeSAMOrBAMWriter(header, true, fileout);
this.addTmpDirectory(fileout);
}
iter = samReader.iterator();
SAMSequenceDictionaryProgress progress =
new SAMSequenceDictionaryProgress(samReader.getFileHeader().getSequenceDictionary());
SortingCollection<RandSamRecord> sorter =
SortingCollection.newInstance(
RandSamRecord.class,
new RandSamRecordCodec(header),
new RandSamRecordComparator(),
maxRecordsInRAM,
getTmpDirectories());
sorter.setDestructiveIteration(true);
while (iter.hasNext()) {
RandSamRecord r = new RandSamRecord();
r.rand_index = random.nextInt();
r.samRecord = progress.watch(iter.next());
sorter.add(r);
}
iter.close();
iter = null;
sorter.doneAdding();
iter2 = sorter.iterator();
if (count == -1) {
while (iter2.hasNext()) {
samWriter.addAlignment(iter2.next().samRecord);
}
} else {
while (iter2.hasNext() && count > 0) {
samWriter.addAlignment(iter2.next().samRecord);
count--;
}
}
iter2.close();
iter2 = null;
sorter.cleanup();
progress.finish();
} catch (Exception e) {
error(e);
return -1;
} finally {
CloserUtil.close(iter);
CloserUtil.close(iter2);
CloserUtil.close(samReader);
CloserUtil.close(samWriter);
}
return 0;
}
/** Combines multiple SAM/BAM files into one. */
@Override
protected int doWork() {
boolean matchedSortOrders = true;
// read interval list if it is defined
final List<Interval> intervalList =
(INTERVALS == null ? null : IntervalList.fromFile(INTERVALS).uniqued().getIntervals());
// map reader->iterator used if INTERVALS is defined
final Map<SamReader, CloseableIterator<SAMRecord>> samReaderToIterator =
new HashMap<SamReader, CloseableIterator<SAMRecord>>(INPUT.size());
// Open the files for reading and writing
final List<SamReader> readers = new ArrayList<SamReader>();
final List<SAMFileHeader> headers = new ArrayList<SAMFileHeader>();
{
SAMSequenceDictionary dict = null; // Used to try and reduce redundant SDs in memory
for (final File inFile : INPUT) {
IOUtil.assertFileIsReadable(inFile);
final SamReader in =
SamReaderFactory.makeDefault().referenceSequence(REFERENCE_SEQUENCE).open(inFile);
if (INTERVALS != null) {
if (!in.hasIndex())
throw new PicardException(
"Merging with interval but Bam file is not indexed " + inFile);
final CloseableIterator<SAMRecord> samIterator =
new SamRecordIntervalIteratorFactory()
.makeSamRecordIntervalIterator(in, intervalList, true);
samReaderToIterator.put(in, samIterator);
}
readers.add(in);
headers.add(in.getFileHeader());
// A slightly hackish attempt to keep memory consumption down when merging multiple files
// with
// large sequence dictionaries (10,000s of sequences). If the dictionaries are identical,
// then
// replace the duplicate copies with a single dictionary to reduce the memory footprint.
if (dict == null) {
dict = in.getFileHeader().getSequenceDictionary();
} else if (dict.equals(in.getFileHeader().getSequenceDictionary())) {
in.getFileHeader().setSequenceDictionary(dict);
}
matchedSortOrders = matchedSortOrders && in.getFileHeader().getSortOrder() == SORT_ORDER;
}
}
// If all the input sort orders match the output sort order then just merge them and
// write on the fly, otherwise setup to merge and sort before writing out the final file
IOUtil.assertFileIsWritable(OUTPUT);
final boolean presorted;
final SAMFileHeader.SortOrder headerMergerSortOrder;
final boolean mergingSamRecordIteratorAssumeSorted;
if (matchedSortOrders
|| SORT_ORDER == SAMFileHeader.SortOrder.unsorted
|| ASSUME_SORTED
|| INTERVALS != null) {
log.info(
"Input files are in same order as output so sorting to temp directory is not needed.");
headerMergerSortOrder = SORT_ORDER;
mergingSamRecordIteratorAssumeSorted = ASSUME_SORTED;
presorted = true;
} else {
log.info("Sorting input files using temp directory " + TMP_DIR);
headerMergerSortOrder = SAMFileHeader.SortOrder.unsorted;
mergingSamRecordIteratorAssumeSorted = false;
presorted = false;
}
final SamFileHeaderMerger headerMerger =
new SamFileHeaderMerger(headerMergerSortOrder, headers, MERGE_SEQUENCE_DICTIONARIES);
final MergingSamRecordIterator iterator;
// no interval defined, get an iterator for the whole bam
if (intervalList == null) {
iterator =
new MergingSamRecordIterator(headerMerger, readers, mergingSamRecordIteratorAssumeSorted);
} else {
// show warning related to https://github.com/broadinstitute/picard/pull/314/files
log.info(
"Warning: merged bams from different interval lists may contain the same read in both files");
iterator = new MergingSamRecordIterator(headerMerger, samReaderToIterator, true);
}
final SAMFileHeader header = headerMerger.getMergedHeader();
for (final String comment : COMMENT) {
header.addComment(comment);
}
header.setSortOrder(SORT_ORDER);
final SAMFileWriterFactory samFileWriterFactory = new SAMFileWriterFactory();
if (USE_THREADING) {
samFileWriterFactory.setUseAsyncIo(true);
}
final SAMFileWriter out = samFileWriterFactory.makeSAMOrBAMWriter(header, presorted, OUTPUT);
// Lastly loop through and write out the records
final ProgressLogger progress = new ProgressLogger(log, PROGRESS_INTERVAL);
while (iterator.hasNext()) {
final SAMRecord record = iterator.next();
out.addAlignment(record);
progress.record(record);
}
log.info("Finished reading inputs.");
for (final CloseableIterator<SAMRecord> iter : samReaderToIterator.values())
CloserUtil.close(iter);
CloserUtil.close(readers);
out.close();
return 0;
}