@Override
  public Resource init() throws ResourceInstantiationException {
    gracefulExit = false;

    if (configFileURL == null) {
      gracefulExit = true;
      gate.util.Err.println("No configuration file provided!");
    }

    if (japeURL == null) {
      gracefulExit = true;
      gate.util.Err.println("No JAPE grammar file provided!");
    }

    // create the init params for the JAPE transducer
    FeatureMap params = Factory.newFeatureMap();
    params.put(Transducer.TRANSD_GRAMMAR_URL_PARAMETER_NAME, japeURL);
    // Code borrowed from Mark Greenwood's Measurements PR
    if (japeTransducer == null) {
      // if this is the first time we are running init then actually create a
      // new transducer as we don't already have one
      FeatureMap hidden = Factory.newFeatureMap();
      Gate.setHiddenAttribute(hidden, true);
      japeTransducer =
          (Transducer) Factory.createResource("gate.creole.Transducer", params, hidden);
    } else {
      // we are being run through a call to reInit so simply re-init the
      // underlying JAPE transducer
      japeTransducer.setParameterValues(params);
      japeTransducer.reInit();
    }

    ConfigReader config = new ConfigReader(configFileURL);
    gracefulExit = config.config();

    try {
      HashMap<String, String> options = config.getOptions();

      patternMap = new HashMap<String, Pattern>();
      addSuffixPattern("disease_suffix", options);
      addWordPattern("disease_abbrevs", options);
      addWordPattern("disease_sense", options);
      addWordExtraPattern("disease_sense_context", options);
      addPossessiveWordPattern("disease_named_syndrome", options);
      addWordExtraPattern("disease_generic_context", options);
      addWordExtraPattern("disease_anatomy_context", options);
      addSuffixPluralPattern("procedure_suffix", options);
      addWordPluralPattern("procedure_key", options);
      addWordExtraPattern("procedure_anatomy_context", options);
      addWordPluralPattern("symptom_key", options);
      addWordPattern("test_key", options);

      addSuffixPattern("anatomy_suffix_adjective", options);
      addSuffixPattern("anatomy_suffix", options);
      addPrefixPattern("anatomy_prefix", options);
      addWordPattern("anatomy_position", options);
      addWordPluralPattern("anatomy_space_region_junction", options);
      addWordPattern("anatomy_part_adjective", options);
      addWordPattern("anatomy_latin_noun", options);
      addWordPattern("anatomy_muscle", options);
      addWordPluralPattern("anatomy_part", options);
      addWordPluralPattern("anatomy_fluid", options);

    } catch (NullPointerException ne) {
      gracefulExit = true;
      gate.util.Err.println(
          "Missing or unset configuration options. Please check configuration file.");
    }

    return this;
  } // end init()