Example usage for javax.script ScriptEngine getBindings

Introduction

In this page you can find the example usage for javax.script ScriptEngine getBindings.

Prototype

public Bindings getBindings(int scope);

Source Link

Document

Returns a scope of named values.

Usage

From source file:Main.java

public static void main(String[] args) throws ScriptException {
    ScriptEngine jse = new ScriptEngineManager().getEngineByName("javascript");
    Bindings bindings = jse.getBindings(ScriptContext.ENGINE_SCOPE);
    Main test = new Main();
    bindings.put("test", test);
    String preFix = "demo";
    jse.eval("test." + preFix + "_test()");
    preFix = "actual";
    jse.eval("test." + preFix + "_test()");
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("js");
    engine.put("a", 1);
    engine.put("b", 5);

    Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    Object a = bindings.get("a");
    Object b = bindings.get("b");
    System.out.println("a = " + a);
    System.out.println("b = " + b);

    Object result = engine.eval("c = a + b;");
    System.out.println("a + b = " + result);
}

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From source file:Main.java

public static void main(String[] args) {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("js");
    engine.put("a", 1);
    engine.put("b", 5);

    Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    Object a = bindings.get("a");
    Object b = bindings.get("b");
    System.out.println("a = " + a);
    System.out.println("b = " + b);

    Object result;/*from  www  .j av  a  2 s. c o  m*/
    try {
        result = engine.eval("c = aaaa + bbbb;");
        System.out.println("a + b = " + result);
    } catch (ScriptException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    manager.put("global", "global bindings");

    dumpBindings(manager.getBindings());
    ScriptEngine engine = manager.getEngineByExtension("js");
    engine.put("engine", "engine bindings");

    dumpBindings(engine.getBindings(ScriptContext.GLOBAL_SCOPE));

    dumpBindings(engine.getBindings(ScriptContext.ENGINE_SCOPE));

    Bindings bindings = engine.createBindings();
    bindings.put("engine", "overridden engine bindings");
    bindings.put("bindings", bindings);
    engine.eval("app.dumpBindings (bindings);", bindings);

    ScriptEngine engine2 = manager.getEngineByExtension("js");
    engine2.put("engine2", "engine2 bindings");

    dumpBindings(engine2.getBindings(ScriptContext.GLOBAL_SCOPE));
    dumpBindings(engine2.getBindings(ScriptContext.ENGINE_SCOPE));
    dumpBindings(engine.getBindings(ScriptContext.ENGINE_SCOPE));
}

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From source file:GetToKnowBindingsAndScopes.java

public static void main(String[] args) {
    ScriptEngineManager manager = new ScriptEngineManager();
    manager.put("global", "global bindings");

    dumpBindings(manager.getBindings());
    ScriptEngine engine = manager.getEngineByExtension("js");
    engine.put("engine", "engine bindings");

    dumpBindings(engine.getBindings(ScriptContext.GLOBAL_SCOPE));

    dumpBindings(engine.getBindings(ScriptContext.ENGINE_SCOPE));

    try {/*  w ww  .  j  a  va 2 s .  co  m*/
        Bindings bindings = engine.createBindings();
        bindings.put("engine", "overridden engine bindings");
        bindings.put("app", new GetToKnowBindingsAndScopes());
        bindings.put("bindings", bindings);
        engine.eval("app.dumpBindings (bindings);", bindings);
    } catch (ScriptException se) {
        System.err.println(se.getMessage());
    }

    ScriptEngine engine2 = manager.getEngineByExtension("js");
    engine2.put("engine2", "engine2 bindings");

    dumpBindings(engine2.getBindings(ScriptContext.GLOBAL_SCOPE));
    dumpBindings(engine2.getBindings(ScriptContext.ENGINE_SCOPE));
    dumpBindings(engine.getBindings(ScriptContext.ENGINE_SCOPE));
}

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From source file:org.wso2.carbon.identity.application.authentication.framework.config.model.graph.JsGraphBuilderFactory.java

public static void persistCurrentContext(AuthenticationContext context, ScriptEngine engine) {

    Bindings engineBindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    Map<String, Object> persistableMap = new HashMap<>();
    engineBindings.forEach((key, value) -> persistableMap.put(key, FrameworkUtils.toJsSerializable(value)));
    context.setProperty(JS_BINDING_CURRENT_CONTEXT, persistableMap);
}

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From source file:org.wso2.carbon.uuf.renderablecreator.hbs.internal.serialize.JsonSerializerTest.java

private static Bindings executeJavaScript(String jsScript) throws ScriptException {
    NashornScriptEngineFactory scriptEngineFactory = new NashornScriptEngineFactory();
    ScriptEngine engine = scriptEngineFactory.getScriptEngine("-strict", "--optimistic-types");
    engine.eval(jsScript);/*from w w  w. jav a2 s  . com*/
    return engine.getBindings(ScriptContext.ENGINE_SCOPE);
}

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From source file:org.wso2.carbon.identity.application.authentication.framework.config.model.graph.JsGraphBuilderFactory.java

public static void restoreCurrentContext(AuthenticationContext context, ScriptEngine engine)
        throws FrameworkException {

    Map<String, Object> map = (Map<String, Object>) context.getProperty(JS_BINDING_CURRENT_CONTEXT);
    Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    if (map != null) {
        for (Map.Entry<String, Object> entry : map.entrySet()) {
            Object deserializedValue = FrameworkUtils.fromJsSerializable(entry.getValue(), engine);
            if (deserializedValue instanceof AbstractJSObjectWrapper) {
                ((AbstractJSObjectWrapper) deserializedValue).initializeContext(context);
            }// w ww . j  a  va 2  s  .c om
            bindings.put(entry.getKey(), deserializedValue);
        }
    }
}

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From source file:org.rhq.bindings.ScriptEngineFactory.java

/**
 * Remove the specified bindings from the engine.
 * //from w  w w  .  j a va2s  .c  o m
 * @param engine the engine
 * @param keySet the binding keys to be removed
 */
public static void removeBindings(ScriptEngine engine, Set<String> keySet) {

    Bindings engineBindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);

    for (String key : keySet) {
        engineBindings.remove(key);
    }

    engine.setBindings(engineBindings, ScriptContext.ENGINE_SCOPE);
}

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From source file:org.rhq.bindings.ScriptEngineFactory.java

/**
 * Injects the values provided in the bindings into the {@link ScriptContext#ENGINE_SCOPE engine scope}
 * of the provided script engine.//  w ww . ja v a 2s.  c  o  m
 * 
 * @param engine the engine
 * @param bindings the bindings
 * @param deleteExistingBindings true if the existing bindings should be replaced by the provided ones, false
 * if the provided bindings should be added to the existing ones (possibly overwriting bindings with the same name).
 */
public static void injectStandardBindings(ScriptEngine engine, StandardBindings bindings,
        boolean deleteExistingBindings) {
    bindings.preInject(engine);

    Bindings engineBindings = deleteExistingBindings ? engine.createBindings()
            : engine.getBindings(ScriptContext.ENGINE_SCOPE);

    for (Map.Entry<String, Object> entry : bindings.entrySet()) {
        engineBindings.put(entry.getKey(), entry.getValue());
    }

    engine.setBindings(engineBindings, ScriptContext.ENGINE_SCOPE);

    bindings.postInject(engine);
}

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