Constructor Detail

• public StrSubstitutor()

• public StrSubstitutor(Map<String, Object> variables)

Method Detail

• public String replace(String str)

  Use GStringTemplateEngine to convert a template string into a string with variable values.

  Parameters:

  str - A template string

  Returns:

  A string with variable values if the template string is not null. Otherwise return an empty string

• public String replaceUsingSimpleSubstitutor(String str)

• public static String resolveEnvVars(String str, Map<String, String> envMap)

  Resolves ${env.VAR} placeholders in the given string using the supplied environment-variable map, without permanently modifying any stored value.

  The caller is responsible for building envMap — including any shell-sourced variables (e.g. from printenv) that are not visible to the JVM — so that all expected placeholders can be resolved.

  Returns str unchanged if it contains no ${env.} expression.

  Parameters:

  str - the string possibly containing \${env.VAR} placeholders

  envMap - a map of environment-variable name to value

  Returns:

  the string with all resolvable \${env.VAR} placeholders replaced