private PathOwnersEntry resolvePathEntry()

in owners-common/src/main/java/com/googlesource/gerrit/owners/common/PathOwners.java [196:247]
46 lines of code
8 McCabe index (conditional complexity)

  private PathOwnersEntry resolvePathEntry(
      String path,
      String branch,
      PathOwnersEntry projectEntry,
      PathOwnersEntry rootEntry,
      Map<String, PathOwnersEntry> entries)
      throws IOException {
    String[] parts = path.split("/");
    PathOwnersEntry currentEntry = rootEntry;
    StringBuilder builder = new StringBuilder();

    if (rootEntry.isInherited()) {
      for (Matcher matcher : projectEntry.getMatchers().values()) {
        if (!currentEntry.hasMatcher(matcher.getPath())) {
          currentEntry.addMatcher(matcher);
        }
      }
      if (currentEntry.getOwners().isEmpty()) {
        currentEntry.setOwners(projectEntry.getOwners());
      }
      if (currentEntry.getOwnersPath() == null) {
        currentEntry.setOwnersPath(projectEntry.getOwnersPath());
      }
    }

    // Iterate through the parent paths, not including the file name
    // itself
    for (int i = 0; i < parts.length - 1; i++) {
      String part = parts[i];
      builder.append(part).append("/");
      String partial = builder.toString();

      // Skip if we already parsed this path
      if (entries.containsKey(partial)) {
        currentEntry = entries.get(partial);
      } else {
        String ownersPath = partial + "OWNERS";
        Optional<OwnersConfig> conf = getOwnersConfig(ownersPath, branch);
        final Set<Id> owners = currentEntry.getOwners();
        final Set<Id> reviewers = currentEntry.getReviewers();
        Collection<Matcher> inheritedMatchers = currentEntry.getMatchers().values();
        currentEntry =
            conf.map(
                    c ->
                        new PathOwnersEntry(
                            ownersPath, c, accounts, owners, reviewers, inheritedMatchers))
                .orElse(currentEntry);
        entries.put(partial, currentEntry);
      }
    }
    return currentEntry;
  }