Package javax.script

Examples of javax.script.ScriptContext

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            System.setProperty("org.jruby.embed.localcontext.scope", "singlethread");
            System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
            ScriptEngineManager manager = new ScriptEngineManager();
            instance = manager.getEngineByName("jruby");
        }
        ScriptContext context = new SimpleScriptContext();

        String script =
            "def get_area\n" +
              "@x * @y + Math::PI / 8.0 * @x ** 2.0\n" +
            "end\n" +
            "get_area";
        context.setAttribute("@x", 1.0, ScriptContext.ENGINE_SCOPE);
        context.setAttribute("@y", 3.0, ScriptContext.ENGINE_SCOPE);
        Double expResult = 3.392;
        Double result = (Double) instance.eval(script, context);
        assertEquals(expResult, result, 0.01);

        instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
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            ScriptEngineManager manager = new ScriptEngineManager();
            instance = manager.getEngineByName("jruby");
        }
        String filename = basedir + "/core/src/test/ruby/org/jruby/embed/ruby/list_printer.rb";
        Reader reader = new FileReader(filename);
        ScriptContext context = new SimpleScriptContext();

        String[] big5 = {"Alaska", "Texas", "California", "Montana", "New Mexico"};
        context.setAttribute("@list", Arrays.asList(big5), ScriptContext.ENGINE_SCOPE);
        StringWriter sw = new StringWriter();
        context.setWriter(sw);
        instance.eval(reader, context);
        String expResult = "Alaska >> Texas >> California >> Montana >> New Mexico: 5 in total";
        assertEquals(expResult, sw.toString().trim());

        instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
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    //@Test
    public void testGetContext() {
        logger1.info("getContext");
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine instance = manager.getEngineByName("jruby");
        ScriptContext result = instance.getContext();
        assertNotNull(result);

        instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
        instance = null;
    }
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    //@Test
    public void testSetContext() {
        logger1.info("setContext");
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine instance = manager.getEngineByName("jruby");
        ScriptContext ctx = new SimpleScriptContext();
        StringWriter sw = new StringWriter();
        sw.write("Have a great summer!");
        ctx.setWriter(sw);
        instance.setContext(ctx);
        ScriptContext result = instance.getContext();
        Writer w = result.getWriter();
        Object expResult = "Have a great summer!";
        assertTrue(sw == result.getWriter());
        assertEquals(expResult, (result.getWriter()).toString());

        instance.getBindings(ScriptContext.ENGINE_SCOPE).clear();
        instance = null;
    }
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    public void testEval_context() throws Exception {
        logger1.info("eval with context");
        System.setProperty("org.jruby.embed.localvariable.behavior", "transient");
        JRubyEngineFactory factory = new JRubyEngineFactory();
        JRubyEngine engine = (JRubyEngine) factory.getScriptEngine();
        ScriptContext context = new SimpleScriptContext();
        StringWriter writer = new StringWriter();
        StringWriter errorWriter = new StringWriter();
        context.setWriter(writer);
        context.setErrorWriter(errorWriter);

        context.setAttribute("message", "Hello World!!!!!", ScriptContext.ENGINE_SCOPE);
        engine.setContext(context);
        String script = "puts message";
        JRubyCompiledScript instance = (JRubyCompiledScript) engine.compile(script);
        Object expResult = "Hello World!!!!!";
        instance.eval(context);
        Object result = writer.toString().trim();
        assertEquals(expResult, result);
        writer.close();

        writer = new StringWriter();
        context.setWriter(writer);
        context.setAttribute("@message", "Say Hey.", ScriptContext.ENGINE_SCOPE);
        engine.setContext(context);
        script = "puts @message";
        instance = (JRubyCompiledScript) engine.compile(script);
        expResult = "Say Hey.";
        instance.eval(context);
        result = writer.toString().trim();
        assertEquals(expResult, result);

        context.setAttribute("@message", "Yeah!", ScriptContext.ENGINE_SCOPE);
        engine.setContext(context);
        expResult = "Say Hey.\nYeah!";
        instance.eval(context);
        result = writer.toString().trim();
        assertEquals(expResult, result);
        writer.close();

        writer = new StringWriter();
        context.setWriter(writer);
        context.setAttribute("$message", "Hiya.", ScriptContext.ENGINE_SCOPE);
        engine.setContext(context);
        script = "puts $message";
        instance = (JRubyCompiledScript) engine.compile(script);
        expResult = "Hiya.";
        instance.eval(context);
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    @Override
    public void process(Page page) {
        ScriptEngine engine = enginePool.getEngine();
        try {
            ScriptContext context = engine.getContext();
            context.setAttribute("page", page, ScriptContext.ENGINE_SCOPE);
            context.setAttribute("config", site, ScriptContext.ENGINE_SCOPE);
            try {
                switch (language) {
                    case JavaScript:
                        engine.eval(defines + "\n" + script, context);
//                        NativeObject o = (NativeObject) engine.get("result");
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            }
        }
    }

    public Object eval(String script, Bindings bindings) throws ScriptException {
        ScriptContext context = getScriptContext(bindings);
        return eval(script, context);
    }
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        ScriptContext context = getScriptContext(bindings);
        return eval(script, context);
    }

    public Object eval(Reader reader, Bindings bindings) throws ScriptException {
        ScriptContext context = getScriptContext(bindings);
        return eval(reader, context);
    }
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    protected ScriptContext getScriptContext(Bindings bindings) {
        if (bindings == null) {
            throw new NullPointerException("null bindings in engine scope");
        }

        ScriptContext newContext = new SimpleScriptContext();
        newContext.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
        Bindings global = getBindings(ScriptContext.GLOBAL_SCOPE);
        if (global != null) {
            newContext.setBindings(global, ScriptContext.GLOBAL_SCOPE);
        }
        newContext.setReader(context.getReader());
        newContext.setWriter(context.getWriter());
        newContext.setErrorWriter(context.getErrorWriter());

        return newContext;
    }
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    @Override
    public Object eval(Bindings bindings) throws ScriptException {
        if (bindings == null) {
            throw new NullPointerException("bindings is null");
        }
        ScriptContext context = engine.getScriptContext(bindings);
        return eval(context);
    }
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