Example usage for jdk.nashorn.api.scripting ScriptUtils unwrap

Introduction

In this page you can find the example usage for jdk.nashorn.api.scripting ScriptUtils unwrap.

Prototype

public static Object unwrap(final Object obj) 

Source Link

Document

Unwrap a script object mirror if needed.

Usage

From source file:net.orzo.lib.DataStructures.java

License:Apache License

/**
 * From a JavaScript array it creates a new one with unique occurrence of
 * items./*  w w  w.  j ava 2s  .  co  m*/
 *
 * @param jsArray
 *            a JavaScript or Java array
 * @param key
 *            a JavaScript function to access values to be considered; null
 *            is also possible (in such case, the value itself is used)
 * @return a JavaScript array with unique items
 */
public Object uniq(Object jsArray, ScriptFunction key) {
    Set<Object> set = new HashSet<>();
    Collection<?> origData;

    if (jsArray.getClass().isArray()) {
        origData = Arrays.asList(jsArray);

    } else {
        NativeArray tmp = (NativeArray) ScriptUtils.unwrap(jsArray);
        origData = Arrays.asList(tmp.asObjectArray());
    }

    try {
        if (key == null) {
            set.addAll(origData);

        } else {
            for (Object item : origData) {
                MethodHandle mh = key.getBoundInvokeHandle(item);
                set.add(mh.invoke(item));
            }
        }
        return set; // TODO wrapping???

    } catch (Throwable ex) {
        throw new LibException(ex);
    }
}

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From source file:org.structr.core.script.StructrScriptable.java

License:Open Source License

public Object unwrap(final Object source) {

    if (source != null) {

        if (source instanceof Wrapper) {

            return unwrap(((Wrapper) source).unwrap());

        } else if (source.getClass().isArray()) {

            final List list = new ArrayList();
            for (final Object obj : (Object[]) source) {

                list.add(unwrap(obj));//from w w  w  . jav a 2  s  . c o  m
            }

            return list;

        } else if (source instanceof StructrArray) {

            final List list = new ArrayList();
            for (final Object obj : ((StructrArray) source).toArray()) {

                list.add(unwrap(obj));
            }

            return list;

        } else if (source.getClass().getName().equals("org.mozilla.javascript.NativeDate")) {

            // FIXME: this is one of the worst ways I've ever resorted to in order
            // to extract the value of a wrapped NativeDate which is not accessible
            // in Java 8 any more, but will be returned by the Rhino Javascript
            // engine.

            try {
                final Class type = source.getClass();
                final Field field = type.getDeclaredField("date");

                field.setAccessible(true);
                final Double value = field.getDouble(source);

                return new Date(value.longValue());

            } catch (Throwable t) {
                logger.log(Level.WARNING, "", t);
            }

        } else {

            return ScriptUtils.unwrap(source);
        }

    }

    return source;
}

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

License:Open Source License

/**
 * This will return the converted SerializableJsFunction if the given  ScriptObjectMirror is a function.
 * @param scriptObjectMirror/*from   w w  w  . j a va 2  s  .com*/
 * @return null if the ScriptObjectMirror is not a function.
 */
public static SerializableJsFunction toSerializableForm(ScriptObjectMirror scriptObjectMirror) {

    if (!scriptObjectMirror.isFunction()) {
        return null;
    }

    //TODO try to get rid of ScriptFunction
    Object unwrapped = ScriptUtils.unwrap(scriptObjectMirror);
    if (unwrapped instanceof ScriptFunction) {
        ScriptFunction scriptFunction = (ScriptFunction) unwrapped;
        boolean isFunction = scriptObjectMirror.isFunction();
        String source = scriptFunction.toSource();

        return new SerializableJsFunction(source, isFunction);
    } else {
        return new SerializableJsFunction(unwrapped.toString(), true);
    }
}

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