Script.java 文件源码

private Map<ScriptEngine, Integer> findScriptEngineCandidates(boolean findByName) {
    Map<ScriptEngine, Integer> matchPositionPerScriptEngineCandidate = new HashMap<>();
    int matchPosition;
    List<String> lookupCriteria;

    for (ScriptEngineFactory factory : new ScriptEngineManager().getEngineFactories()) {
        matchPosition = 0;
        if (findByName) {
            lookupCriteria = factory.getNames();
        } else {
            lookupCriteria = factory.getExtensions();
        }

        for (String criteria : lookupCriteria) {
            if (criteria.equalsIgnoreCase(scriptEngineLookupName)) {
                matchPositionPerScriptEngineCandidate.put(factory.getScriptEngine(), matchPosition);
            }
            matchPosition++;
        }
    }

    return matchPositionPerScriptEngineCandidate;
}