private String fetchAttribute()

in detectors/resources/src/main/java/com/google/cloud/opentelemetry/detectors/GCPMetadataConfig.java [120:137]

• 17 lines of code
• 4 McCabe index (conditional complexity)

  private String fetchAttribute(String attributeName) {
    try {
      URL url = new URL(this.url + attributeName);
      HttpURLConnection connection = (HttpURLConnection) url.openConnection();
      connection.setRequestProperty("Metadata-Flavor", "Google");
      if (connection.getResponseCode() == 200
          && ("Google").equals(connection.getHeaderField("Metadata-Flavor"))) {
        InputStream input = connection.getInputStream();
        try (BufferedReader reader =
            new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8))) {
          return reader.readLine();
        }
      }
    } catch (IOException ignore) {
      // ignore
    }
    return null;
  }