public Section readNextSection()

in google-http-client/src/main/java/com/google/api/client/util/PemReader.java [82:111]

30 lines of code
8 McCabe index (conditional complexity)


  public Section readNextSection(String titleToLookFor) throws IOException {
    String title = null;
    StringBuilder keyBuilder = null;
    while (true) {
      String line = reader.readLine();
      if (line == null) {
        Preconditions.checkArgument(title == null, "missing end tag (%s)", title);
        return null;
      }
      if (keyBuilder == null) {
        Matcher m = BEGIN_PATTERN.matcher(line);
        if (m.matches()) {
          String curTitle = m.group(1);
          if (titleToLookFor == null || curTitle.equals(titleToLookFor)) {
            keyBuilder = new StringBuilder();
            title = curTitle;
          }
        }
      } else {
        Matcher m = END_PATTERN.matcher(line);
        if (m.matches()) {
          String endTitle = m.group(1);
          Preconditions.checkArgument(endTitle.equals(title),
              "end tag (%s) doesn't match begin tag (%s)", endTitle, title);
          return new Section(title, Base64.decodeBase64(keyBuilder.toString()));
        }
        keyBuilder.append(line);
      }
    }
  }