Java ScriptingContainer.setOutput方法代碼示例

import org.jruby.embed.ScriptingContainer; //導入方法依賴的package包/類
public JavaEmbedUtils.EvalUnit getScript() throws FileNotFoundException {
    if (this.unit == null) {
        if (!this.configFile.exists()) {
            throw new FileNotFoundException("Configuration file does not exist");
        }

        ScriptingContainer scriptingContainer = new ScriptingContainer(
                LocalContextScope.THREADSAFE,
                LocalVariableBehavior.PERSISTENT);

        scriptingContainer.setOutput(new PrintStream(new NullOutputStream()));

        StringBuilder script = new StringBuilder()
                .append("require 'compass'\n")
                .append("require 'compass/sass_compiler'\n")
                .append("Compass.reset_configuration!\n")
                .append("Compass.add_project_configuration configLocation\n")

                        // remove color codes since they cannot be proceeded correctly by IDE consoles
                .append("Compass.configuration.color_output = false\n")

                .append("Compass.configure_sass_plugin!\n")
                .append("Compass.configuration.on_stylesheet_saved { |filename| callback_logger.onStylesheetSaved(filename) }\n")
                .append("Compass.configuration.on_stylesheet_error { |filename, message| callback_logger.onStylesheetError(filename, message) }\n")
                .append("Compass.configuration.on_sprite_saved { |filename| callback_logger.onSpriteSaved(filename) }\n")
                .append("Dir.chdir(File.dirname(configLocation)) do\n")
                .append("  Compass.sass_compiler.compile!\n")
                .append("end\n");

        scriptingContainer.put("configLocation", this.configFile.getAbsolutePath().replaceAll("\\\\", "/"));
        scriptingContainer.put("callback_logger", callbackLogger);
        this.unit = scriptingContainer.parse(script.toString());
    }

    return this.unit;
}
 

import org.jruby.embed.ScriptingContainer; //導入方法依賴的package包/類
/**
 * Create a new JRuby wrapper.
 * @param profile whether or not profiling is enabled
 */
public JRubyWrapper(boolean profile) {
    rb = new ScriptingContainer(LocalContextScope.THREADSAFE);
    rb.setCompatVersion(CompatVersion.RUBY1_9);
    rb.setCurrentDirectory(Paths.get("").toAbsolutePath().toString()); // set working directory of scripts to working directory of application

    @SuppressWarnings("unchecked")
    Map<String, String> env = new HashMap<>(rb.getEnvironment());

    env.put("GEM_PATH", Paths.get("lib/gems").toAbsolutePath().toString());
    MewtwoMain.mewtwoLogger.info("Setting GEM_PATH of container to " + env.get("GEM_PATH"));

    rb.setEnvironment(env);

    ArrayList<String> loadPaths = new ArrayList<>();

    File gemsFile = Paths.get("lib/gems").toFile();
    File[] files = gemsFile.listFiles();

    for(File child : files != null ? files : new File[0]) {
        String subPath = Paths.get(child.getAbsolutePath()).resolve("lib").toString();
        MewtwoMain.mewtwoLogger.info("Adding '" + subPath + "' to loadPaths");
        loadPaths.add(subPath);
    }

    rb.setLoadPaths(loadPaths);


    swOut = new StringWriter();
    swErr = new StringWriter();

    PrintWriter pwOut = new PrintWriter(swOut);
    PrintWriter pwErr = new PrintWriter(swErr);

    rb.setOutput(pwOut);
    rb.setError(pwErr);

    if(profile) {
            rb.setProfile(RubyInstanceConfig.ProfilingMode.GRAPH);
        try {
            rb.setProfileOutput(new ProfileOutput(new File("profile.txt")));
        } catch(IOException e) {
            MewtwoMain.mewtwoLogger.error("Could not initialize JRuby profiler! Disabling profiling.");
        }
    }

    long time = System.currentTimeMillis();
    MewtwoMain.mewtwoLogger.info("Initializing ScriptingContainer - this might take a few seconds!");

    rb.runScriptlet("require 'java'; Java::Meew0Mewtwo::MewtwoMain.mewtwoLogger.info('Hello world! This is JRuby')");

    MewtwoMain.mewtwoLogger.info("ScriptingContainer successfully initialized in " +
            (System.currentTimeMillis() - time) + " ms");
}