CompiledScriptCache.java 文件源码

public CompiledScript loadCompiledScript(ScriptEngine engine, File file) throws FileNotFoundException, ScriptException
{
    int len = L2ScriptEngineManager.SCRIPT_FOLDER.getPath().length() + 1;
    String relativeName = file.getPath().substring(len);
    CompiledScriptHolder csh = _compiledScriptCache.get(relativeName);
    if (csh != null && csh.matches(file))
    {
        if (Config.DEBUG)
            LOG.fine("Reusing cached compiled script: " + file);
        return csh.getCompiledScript();
    }
    else
    {
        if (Config.DEBUG)
            LOG.info("Compiling script: " + file);
        Compilable eng = (Compilable) engine;
        BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
        // TODO lock file
        CompiledScript cs = eng.compile(reader);
        if (cs instanceof Serializable)
            synchronized (_compiledScriptCache)
            {
                _compiledScriptCache.put(relativeName, new CompiledScriptHolder(cs, file));
                _modified = true;
            }
        return cs;
    }
}