Examples of com.sun.faces.mgbean.BeanBuilder$Expression

org.apache.commons.jexl2.Expression
This is a holder class for ValueExpressions. It will try to perform static lifespan checking of the expression per the specification. If it is unable to determine the scope of the expression, validation will be deferred to runtime.

            ApplicationAssociate associate = ApplicationAssociate.getInstance(sc);
            if (associate != null) {
                BeanManager manager = associate.getBeanManager();
                for (Map.Entry<String, BeanBuilder> entry : manager.getRegisteredBeans().entrySet()) {
                    String name = entry.getKey();
                    BeanBuilder bean = entry.getValue();
                    if (ELUtils.Scope.APPLICATION.toString().equals(bean.getScope())) {
                        if (LOGGER.isLoggable(Level.INFO)) {
                            LOGGER.log(Level.INFO,
                                    "Removing application scoped managed bean: {0}",
                                    name);
                        }

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            ApplicationAssociate associate = ApplicationAssociate.getInstance(sc);
            if (associate != null) {
                BeanManager manager = associate.getBeanManager();
                for (Map.Entry<String, BeanBuilder> entry : manager.getRegisteredBeans().entrySet()) {
                    String name = entry.getKey();
                    BeanBuilder bean = entry.getValue();
                    if (ELUtils.Scope.APPLICATION.toString().equals(bean.getScope())) {
                        if (LOGGER.isLoggable(Level.INFO)) {
                            LOGGER.log(Level.INFO,
                                    "Removing application scoped managed bean: {0}",
                                    name);
                        }

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        List<FeatureDescriptor> list =
             new ArrayList<FeatureDescriptor>(beans.size());
        // iterate over the list of managed beans
        for (Map.Entry<String,BeanBuilder> bean : beans.entrySet()) {
            String beanName = bean.getKey();
            BeanBuilder builder = bean.getValue();
            String loc = Util.getLocaleFromContextOrSystem(facesContext).toString();
            Map<String,String> descriptions = builder.getDescriptions();


            String description = null;
            if (descriptions != null) {
                description = descriptions.get(loc);
                if (description == null) {
                    description = descriptions.get("DEFAULT");
                }
            }
            list.add(Util.getFeatureDescriptor(beanName,
                                               beanName,
                                               (description == null) ? "" : description,
                                               false,
                                               false,
                                               true,
                                               builder.getBeanClass(),
                                               Boolean.TRUE));
        }


        return list.iterator();
    }

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    private Object resolveBean(ELContext context, Object property, boolean markAsResolvedIfCreated) {
        Object result = null;
        BeanManager manager = getBeanManager();
        if (manager != null) {
            String beanName = property.toString();
            BeanBuilder builder = manager.getBuilder(beanName);
            if (builder != null) {
                FacesContext facesContext = (FacesContext)
                    context.getContext(FacesContext.class);


                // JAVASERVERFACES-2989: Make sure to check request, session, and application.

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            ApplicationAssociate associate = ApplicationAssociate.getInstance(sc);
            if (associate != null) {
                BeanManager manager = associate.getBeanManager();
                for (Map.Entry<String, BeanBuilder> entry : manager.getRegisteredBeans().entrySet()) {
                    String name = entry.getKey();
                    BeanBuilder bean = entry.getValue();
                    if (ELUtils.Scope.APPLICATION.toString().equals(bean.getScope())) {
                        if (LOGGER.isLoggable(Level.INFO)) {
                            LOGGER.log(Level.INFO,
                                    "Removing application scoped managed bean: {0}",
                                    name);
                        }

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    public String evaluate(final String expression, final JexlContext jexlContext) {
        String result = "";


        if (StringUtils.isNotBlank(expression) && jexlContext != null) {
            try {
                Expression jexlExpression = jexlEngine.createExpression(expression);
                Object evaluated = jexlExpression.evaluate(jexlContext);
                if (evaluated != null) {
                    result = evaluated.toString();
                }
            } catch (JexlException e) {
                LOG.error("Invalid jexl expression: " + expression, e);

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     */
    @Override
    public FeatureState process(final ContextManager contextManager)
    {
        final JexlEngine jexlEngine = new JexlEngine();
        Expression jexlExpression;
        if (expression != null) {
            jexlExpression = jexlEngine.createExpression(expression);
        } else {
            jexlExpression = getOldExpression(jexlEngine);
        }
        
        final Map<String, Object> contextMap = contextManager.getContext(context);
        final JexlContext jexlContext = new MapContext(contextMap);


        return Boolean.TRUE.equals(jexlExpression.evaluate(jexlContext)) ? FeatureState.ENABLED : FeatureState.DISABLED;
    }

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     * @param expected is the expected value of the expression
     * @throws Exception if the expression could not be evaluationed or an assertion
     * fails
     */
    public void assertExpression(String expression, Object expected) throws Exception {
        Expression exp = engine.createExpression(expression);
        Object value = exp.evaluate(context);


        assertEquals("expression: " + expression, expected, value);
    }

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    public void failExpression(String expression, String matchException) throws Exception {
        boolean[] flags = { engine.isLenient(), engine.isSilent() };
        try {
            engine.setLenient(false);
            engine.setSilent(false);
            Expression exp = engine.createExpression(expression);
            exp.evaluate(context);
            fail("expression: " + expression);
        } catch(JexlException xjexl) {
            if (matchException != null && !xjexl.getMessage().matches(matchException)) {
                fail("expression: " + expression + ", expected: " + matchException + ", got " + xjexl.getMessage());
            }

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    /**
     * {@inheritDoc }
     */
    public Object evaluate(Object context, String expression) {
        Expression jexlExpression = engine.createExpression(expression);
        JexlContext jexlContext = new ObjectContext(engine, context);
        
        return jexlExpression.evaluate(jexlContext);
    }

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