Examples with Context org.nutz.lang.util.Context used on opensource projects

Example 1 with Context

use of org.nutz.lang.util.Context in project nutz by nutzam.

the class El2Test method testIssue277_2.

@Test
public void testIssue277_2() {
    Context context = Lang.context();
    context.set("math", Maths.class);
    assertEquals(2, El.eval(context, "math.max(1, 2)"));
}

Example 2 with Context

use of org.nutz.lang.util.Context in project nutz by nutzam.

the class AbstractPathView method createContext.

/**
     * 为一次 HTTP 请求，创建一个可以被表达式引擎接受的上下文对象
     * 
     * @param req
     *            HTTP 请求对象
     * @param obj
     *            入口函数的返回值
     * @return 上下文对象
     */
public static Context createContext(HttpServletRequest req, Object obj) {
    Context context = Lang.context();
    // 复制全局的上下文对象
    Object globalContext = Mvcs.getServletContext().getAttribute(Loading.CONTEXT_NAME);
    if (globalContext != null) {
        context.putAll((Context) globalContext);
    }
    // 请求对象的属性列表
    Map<String, Object> req_attr = new HashMap<String, Object>();
    for (Enumeration<String> en = req.getAttributeNames(); en.hasMoreElements(); ) {
        String tem = en.nextElement();
        if (!tem.startsWith("$"))
            req_attr.put(tem, req.getAttribute(tem));
    }
    // 兼容最初的写法
    context.set("a", req_attr);
    context.set("req_attr", req_attr);
    ActionContext ac = Mvcs.getActionContext();
    if (ac != null)
        context.set("pathargs", Mvcs.getActionContext().getPathArgs());
    HttpSession session = Mvcs.getHttpSession(false);
    if (session != null) {
        Map<String, Object> session_attr = new HashMap<String, Object>();
        for (Enumeration<String> en = session.getAttributeNames(); en.hasMoreElements(); ) {
            String tem = en.nextElement();
            session_attr.put(tem, session.getAttribute(tem));
        }
        context.set("session_attr", session_attr);
    }
    // 请求的参数表,需要兼容之前的p.参数, Fix issue 418
    Map<String, String> p = new HashMap<String, String>();
    for (Object o : Lang.enum2collection(req.getParameterNames(), new ArrayList<String>())) {
        String key = (String) o;
        String value = req.getParameter(key);
        p.put(key, value);
        // 以支持直接获取请求参数
        context.set(key, value);
    }
    context.set("p", p);
    Map<String, String> u = new HashMap<String, String>();
    AtMap at = Mvcs.getAtMap();
    if (at != null) {
        for (Object o : at.keys()) {
            String key = (String) o;
            u.put(key, at.get(key));
        }
        context.set("u", u);
    }
    // 加入返回对象
    if (null != obj)
        context.set(ViewProcessor.DEFAULT_ATTRIBUTE, obj);
    return context;
}

Example 3 with Context

use of org.nutz.lang.util.Context in project nutz by nutzam.

the class NutLoading method createContext.

protected void createContext(NutConfig config) {
    // 构建一个上下文对象，方便子类获取更多的环境信息
    // 同时，所有 Filter 和 Adaptor 都可以用 ${app.root} 来填充自己
    Context context = Lang.context();
    String appRoot = config.getAppRoot();
    context.set("app.root", appRoot);
    if (log.isDebugEnabled()) {
        log.debugf(">> app.root = %s", appRoot);
    }
    // 载入环境变量
    for (Entry<String, String> entry : System.getenv().entrySet()) context.set("env." + entry.getKey(), entry.getValue());
    // 载入系统变量
    for (Entry<Object, Object> entry : System.getProperties().entrySet()) context.set("sys." + entry.getKey(), entry.getValue());
    if (log.isTraceEnabled()) {
        log.tracef(">>\nCONTEXT %s", Json.toJson(context, JsonFormat.nice()));
    }
    config.getServletContext().setAttribute(Loading.CONTEXT_NAME, context);
}

Example 4 with Context

use of org.nutz.lang.util.Context in project nutz by nutzam.

the class SegmentsTest method test_simple_replace.

@Test
public void test_simple_replace() {
    String ptn = "1${A}2${B}3${C}4";
    Context context = Lang.context();
    context.set("B", "haha");
    String str = Segments.replace(ptn, context);
    assertEquals("1${A}2haha3${C}4", str);
}

Example 5 with Context

use of org.nutz.lang.util.Context in project nutz by nutzam.

the class El2Test method test_uu32_uu64.

@Test
public void test_uu32_uu64() {
    Context ctx = Lang.context();
    El el = new El("uuid()");
    assertEquals(32, el.eval(ctx).toString().length());
    el = new El("uuid(32)");
    assertTrue(26 >= el.eval(ctx).toString().length());
    el = new El("uuid(64)");
    assertTrue(23 >= el.eval(ctx).toString().length());
}