code: public final String getConfigurationValue(String key)
      {
          //get value
          String value=this.serviceConfiguration.getConfigurationValue(key);
          
          return value;
      }
docs: Returns the value from the component configuration based on the provided
  configuration key.
  The value will be trimmed.<br>
  If the trimmed configuration value is an empty string,
  null will be returned instead.
  
  @param   key
  The configuration key
  @return  The value