示例#1
0
  @Override
  protected Object doWork() {
    IOUtil.assertFileIsReadable(INPUT);
    IOUtil.assertFileIsReadable(REFERENCE_SEQUENCE);
    IOUtil.assertFileIsReadable(CHAIN);
    IOUtil.assertFileIsWritable(OUTPUT);
    IOUtil.assertFileIsWritable(REJECT);

    ////////////////////////////////////////////////////////////////////////
    // Setup the inputs
    ////////////////////////////////////////////////////////////////////////
    final LiftOver liftOver = new LiftOver(CHAIN);
    final VCFFileReader in = new VCFFileReader(INPUT, false);

    logger.info("Loading up the target reference genome.");
    final ReferenceSequenceFileWalker walker = new ReferenceSequenceFileWalker(REFERENCE_SEQUENCE);
    final Map<String, byte[]> refSeqs = new HashMap<>();
    for (final SAMSequenceRecord rec : walker.getSequenceDictionary().getSequences()) {
      refSeqs.put(rec.getSequenceName(), walker.get(rec.getSequenceIndex()).getBases());
    }
    CloserUtil.close(walker);

    ////////////////////////////////////////////////////////////////////////
    // Setup the outputs
    ////////////////////////////////////////////////////////////////////////
    final VCFHeader inHeader = in.getFileHeader();
    final VCFHeader outHeader = new VCFHeader(inHeader);
    outHeader.setSequenceDictionary(walker.getSequenceDictionary());
    final VariantContextWriter out =
        new VariantContextWriterBuilder()
            .setOption(Options.INDEX_ON_THE_FLY)
            .setOutputFile(OUTPUT)
            .setReferenceDictionary(walker.getSequenceDictionary())
            .build();
    out.writeHeader(outHeader);

    final VariantContextWriter rejects =
        new VariantContextWriterBuilder()
            .setOutputFile(REJECT)
            .unsetOption(Options.INDEX_ON_THE_FLY)
            .build();
    final VCFHeader rejectHeader = new VCFHeader(in.getFileHeader());
    for (final VCFFilterHeaderLine line : FILTERS) rejectHeader.addMetaDataLine(line);
    rejects.writeHeader(rejectHeader);

    ////////////////////////////////////////////////////////////////////////
    // Read the input VCF, lift the records over and write to the sorting
    // collection.
    ////////////////////////////////////////////////////////////////////////
    long failedLiftover = 0, failedAlleleCheck = 0, total = 0;
    logger.info("Lifting variants over and sorting.");

    final SortingCollection<VariantContext> sorter =
        SortingCollection.newInstance(
            VariantContext.class,
            new VCFRecordCodec(outHeader),
            outHeader.getVCFRecordComparator(),
            MAX_RECORDS_IN_RAM,
            TMP_DIR);

    ProgressLogger progress = new ProgressLogger(logger, 1000000, "read");

    for (final VariantContext ctx : in) {
      ++total;
      final Interval source =
          new Interval(
              ctx.getContig(),
              ctx.getStart(),
              ctx.getEnd(),
              false,
              ctx.getContig() + ":" + ctx.getStart() + "-" + ctx.getEnd());
      final Interval target = liftOver.liftOver(source, 1.0);

      if (target == null) {
        rejects.add(new VariantContextBuilder(ctx).filter(FILTER_CANNOT_LIFTOVER).make());
        failedLiftover++;
      } else {
        // Fix the alleles if we went from positive to negative strand
        final List<Allele> alleles = new ArrayList<>();
        for (final Allele oldAllele : ctx.getAlleles()) {
          if (target.isPositiveStrand() || oldAllele.isSymbolic()) {
            alleles.add(oldAllele);
          } else {
            alleles.add(
                Allele.create(
                    SequenceUtil.reverseComplement(oldAllele.getBaseString()),
                    oldAllele.isReference()));
          }
        }

        // Build the new variant context
        final VariantContextBuilder builder =
            new VariantContextBuilder(
                ctx.getSource(), target.getContig(), target.getStart(), target.getEnd(), alleles);

        builder.id(ctx.getID());
        builder.attributes(ctx.getAttributes());
        builder.genotypes(ctx.getGenotypes());
        builder.filters(ctx.getFilters());
        builder.log10PError(ctx.getLog10PError());

        // Check that the reference allele still agrees with the reference sequence
        boolean mismatchesReference = false;
        for (final Allele allele : builder.getAlleles()) {
          if (allele.isReference()) {
            final byte[] ref = refSeqs.get(target.getContig());
            final String refString =
                StringUtil.bytesToString(ref, target.getStart() - 1, target.length());

            if (!refString.equalsIgnoreCase(allele.getBaseString())) {
              mismatchesReference = true;
            }

            break;
          }
        }

        if (mismatchesReference) {
          rejects.add(new VariantContextBuilder(ctx).filter(FILTER_MISMATCHING_REF_ALLELE).make());
          failedAlleleCheck++;
        } else {
          sorter.add(builder.make());
        }
      }

      progress.record(ctx.getContig(), ctx.getStart());
    }

    final NumberFormat pfmt = new DecimalFormat("0.0000%");
    final String pct = pfmt.format((failedLiftover + failedAlleleCheck) / (double) total);
    logger.info("Processed ", total, " variants.");
    logger.info(Long.toString(failedLiftover), " variants failed to liftover.");
    logger.info(
        Long.toString(failedAlleleCheck),
        " variants lifted over but had mismatching reference alleles after lift over.");
    logger.info(pct, " of variants were not successfully lifted over and written to the output.");

    rejects.close();
    in.close();

    ////////////////////////////////////////////////////////////////////////
    // Write the sorted outputs to the final output file
    ////////////////////////////////////////////////////////////////////////
    sorter.doneAdding();
    progress = new ProgressLogger(logger, 1000000, "written");
    logger.info("Writing out sorted records to final VCF.");

    for (final VariantContext ctx : sorter) {
      out.add(ctx);
      progress.record(ctx.getContig(), ctx.getStart());
    }
    out.close();
    sorter.cleanup();

    return null;
  }
示例#2
0
  @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;
  }
示例#3
0
  @Override
  protected int doWork() {
    if (DELIM.length() != 1) {
      LOG.error("DELIM must have length==1 . Got " + DELIM.length());
      return -1;
    }
    InputStream in = System.in;
    SortingCollection<Cell> sorter = null;
    final Comparator<Cell> comparator =
        new Comparator<Biostar84786.Cell>() {
          @Override
          public int compare(final Cell o1, final Cell o2) {
            int i;
            i = (o1.col < o2.col ? -1 : o1.col > o2.col ? 1 : 0);
            if (i != 0) return i;
            i = (o1.row < o2.row ? -1 : o1.row > o2.row ? 1 : 0);
            if (i != 0) return i;
            return o1.content.compareTo(o2.content);
          }
        };
    try {
      final char delimiter = DELIM.charAt(0);
      sorter =
          SortingCollection.newInstance(
              Cell.class, new CellCodec(), comparator, super.MAX_RECORDS_IN_RAM);
      sorter.setDestructiveIteration(true);
      if (IN != null) {
        LOG.info("opening " + IN);
        in = IOUtils.openFileForReading(IN);
      }
      long row = 0L;
      long col = 0L;
      StringBuilder b = new StringBuilder();
      for (; ; ) {
        int c = in.read();
        if (c == '\n' || c == -1) {
          sorter.add(new Cell(row, col, b));
          row++;
          col = 0;
          b.setLength(0);
          if (c == -1) break;
          if (row % 10000 == 0) LOG.info("row:" + row);
        } else if (c == delimiter) {
          sorter.add(new Cell(row, col, b));
          b.setLength(0);
          col++;
        } else {
          b.append((char) c);
        }
      }
      sorter.doneAdding();
      if (IN != null) in.close();
      in = null;
      CloseableIterator<Cell> iter = sorter.iterator();
      long curr_col = -1L;
      long x = 0L;
      for (; ; ) {

        if (!iter.hasNext()) {
          System.out.println();
          break;
        }
        Cell c = iter.next();
        if (c.col != curr_col) {
          if (curr_col != -1L) System.out.println();
          x = 0L;
          curr_col = c.col;
        }
        if (x > 0L) System.out.print(DELIM);
        System.out.print(c.content);
        x++;
      }
      iter.close();
      LOG.info("Done.");
    } catch (Exception e) {
      e.printStackTrace();
      LOG.error(e, "BOUM");
      return -1;
    } finally {
      if (sorter != null) sorter.cleanup();
      if (in != null) CloserUtil.close(in);
    }
    return 0;
  }