Method doCacheFile_

src/openms/source/FORMAT/SwathFile.cpp:279–295

Cache a file to disk

  /// Cache a file to disk
  OpenSwath::SpectrumAccessPtr SwathFile::doCacheFile_(const String& in, const String& tmp, const String& tmp_fname,
    const boost::shared_ptr<PeakMap >& experiment_metadata)
  {
    String cached_file = tmp + tmp_fname + ".cached";
    String meta_file = tmp + tmp_fname;

    // Create new consumer, transform infile, write out metadata
    {
      MSDataCachedConsumer cachedConsumer(cached_file, true);
      MzMLFile().transform(in, &cachedConsumer, *experiment_metadata.get());
      Internal::CachedMzMLHandler().writeMetadata(*experiment_metadata.get(), meta_file, true);
    } // ensure that filestream gets closed

    boost::shared_ptr<PeakMap > exp(new PeakMap);
    MzMLFile().load(meta_file, *exp.get());
    return SimpleOpenMSSpectraFactory::getSpectrumAccessOpenMSPtr(exp);
  }

  /// Only read the meta data from a file and use it to populate exp_meta
  boost::shared_ptr< PeakMap > SwathFile::populateMetaData_(const String& file)