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childe avatar childe commented on August 20, 2024

i use jinjava .1.0.9

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childe avatar childe commented on August 20, 2024

I could create Context c for one time , and create a child of c with event.
But another problem: complex template like "Hello, {%if name is defined %} {{name}} {% endif %}" will raise a Exception with null as the first parameter when create TokenParser.

        Map<String, Object> bindings = new HashMap<>();
        bindings.put("name", "Jared");

        Jinjava jinjava = new Jinjava();

        Context c = jinjava.getGlobalContext();
        c.registerFilter(f);
        String template = "Hello, {{name}} {% endif %}";
        TokenParser t = new TokenParser(null, template);

        Node parsedTemplate = TreeParser.parseTree(t);

        long s = System.currentTimeMillis();
        for (int i = 0; i < 10000; i++) {
            Context cc = new Context(c, bindings);

            JinjavaInterpreter interpreter = new JinjavaInterpreter(jinjava,
                    cc, null);
            // Node parsedTemplate = interpreter.parse(template);

            String ss = interpreter.render(template);

        }

        System.out.println(System.currentTimeMillis() - s);

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jaredstehler avatar jaredstehler commented on August 20, 2024

So what you can do is similar to how we construct the JinjavaInterpreter instances in the Jinjava wrapper class, by creating children of the context and configs, respectively. That way, they can inherit defined filters and such without collecting unnecessary state.

    Context context = new Context(globalContext, bindings);

    JinjavaInterpreter parentInterpreter = JinjavaInterpreter.getCurrent();
    if(parentInterpreter != null) {
      renderConfig = parentInterpreter.getConfig();
    }

    JinjavaInterpreter interpreter = new JinjavaInterpreter(this, context, renderConfig);
    JinjavaInterpreter.pushCurrent(interpreter);

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