MetadataScrubber.java 文件源码

/**
 * A utility method that is useful for stripping a list of words from all the fields of the
 * RevisionMetadata.
 *
 * @param rm the RevisionMetadata to scrub
 * @param words the list of words to replace
 * @param replacement the String to replace the target words with
 * @param wordAlone true if the words to match must surrounded by word boundaries
 * @return a copy representing the RevisionMetadata resulting from the scrub
 */
public static RevisionMetadata stripFromAllFields(
    RevisionMetadata rm, List<String> words, String replacement, boolean wordAlone) {

  String newId = rm.id();
  String newAuthor = rm.author();
  String newDescription = rm.description();
  ListMultimap<String, String> newFields = LinkedListMultimap.create(rm.fields());
  for (String word : words) {
    String regex = (wordAlone) ? ("(?i)(\\b)" + word + "(\\b)") : ("(?i)" + word);
    newId = newId.replaceAll(regex, replacement);
    newAuthor = newAuthor.replaceAll(regex, replacement);
    newDescription = newDescription.replaceAll(regex, replacement);
    for (Entry<String, String> entry : newFields.entries()) {
      entry.setValue(entry.getValue().replaceAll(regex, replacement));
    }
  }
  return rm.toBuilder()
      .id(newId)
      .author(newAuthor)
      .description(newDescription)
      .replacingFieldsWith(ImmutableSetMultimap.copyOf(newFields))
      .build();
}