RemoveLinesDataModifier.java 文件源码

private String modify(String data, Set<Integer> indexesToRemove) {
  List<String> lines = Arrays.asList(StringUtils.split(data, NEWLINE));
  Set<Integer> dataIndexes = ContiguousSet.create(Range.closed(1, lines.size()),
      DiscreteDomain.integers());
  if (!dataIndexes.containsAll(indexesToRemove)) {
    LOGGER.warn("Some of defined ranges exceed source lenght. Source length is: " + lines.size());
  }
  Set<Integer> filtereedIndexesToRemove = Sets.intersection(dataIndexes, indexesToRemove);
  List<String> modifiedLines = new ArrayList<String>(
      lines.size() - filtereedIndexesToRemove.size());
  for (int i = 0; i < lines.size(); i++) {
    if (!filtereedIndexesToRemove.contains(i + 1)) {
      modifiedLines.add(lines.get(i));
    }
  }
  return StringUtils.join(modifiedLines, NEWLINE);
}