How to use

replaceTokens

method

in

com.oculusinfo.tile.rest.config.ConfigServiceImpl

@Override
public String replaceProperties(File configFile) throws ConfigException {
  try {
    LOGGER.info("Processing configFile {}", configFile);
    Map<String, String> replacements = buildReplacements();
    String configFileContent = new String(Files.readAllBytes(Paths.get(configFile.getPath())), StandardCharsets.UTF_8);
    // Do configuration file replacements
    String replacedContent = configFileContent;
    if (replacements != null) {
      replacedContent = replaceTokens(configFileContent, replacements, PROPERTIES_FILE_REPLACEMENT_REGEX, false);
    } else {
      LOGGER.warn("No config properties found, using file as is {}", configFile.getAbsolutePath());
    }
    // Do environment variable replacements
    // Replace undefined environment variables with empty string
    // (Windows doesn't allow you to set empty environment variables - it just deletes them)
    return replaceTokens(replacedContent, System.getenv(), ENV_VAR_REPLACEMENT_REGEX, true);
  } catch (IOException e) {
    throw new ConfigException(String.format("Unable to read config file %s", configFile), e);
  }
}

@Test
public void testReplaceTokens() {
  String text = "The ${some.animal} jumped over the ${some.object}";
  Map<String, String> replacements = new HashMap<>();
  replacements.put("some.animal", "cow");
  replacements.put("some.object", "moon");
  String replaced = _configService.replaceTokens(text, replacements, ConfigServiceImpl.PROPERTIES_FILE_REPLACEMENT_REGEX, false);
  assertEquals("The cow jumped over the moon", replaced);
}