Package org.apache.commons.jexl2

Examples of org.apache.commons.jexl2.JexlException$Parsing

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    private static JexlEngine jexlEngine;

    private static JexlEngine getEngine() {
        synchronized (LOG) {
            if (jexlEngine == null) {
                jexlEngine = new JexlEngine(new ClassFreeUberspectImpl(null), null, null, null);
                jexlEngine.setClassLoader(new EmptyClassLoader());
                jexlEngine.setCache(512);
                jexlEngine.setLenient(true);
                jexlEngine.setSilent(false);
            }
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            AbstractExecutor.Method it = getMethodExecutor(obj, "iterator", null);
            if (it != null && Iterator.class.isAssignableFrom(it.getReturnType())) {
                return (Iterator<Object>) it.execute(obj, null);
            }
        } catch(Exception xany) {
            throw new JexlException(info, "unable to generate iterator()", xany);
        }
        return null;
    }
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            AbstractExecutor.Method it = getMethodExecutor(obj, "iterator", null);
            if (it != null && Iterator.class.isAssignableFrom(it.getReturnType())) {
                return (Iterator<Object>) it.execute(obj, null);
            }
        } catch (Exception xany) {
            throw new JexlException(info, "unable to generate iterator()", xany);
        }
        return null;
    }
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        return null;
    }
   
    /** {@inheritDoc} */
    public String debugString() {
        JexlInfo info = getInfo();
        return info != null? info.debugString() : "";
    }
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        return result;
    }

    public JexlContext addFieldsToContext(final Object attributable, final JexlContext jexlContext) {
        JexlContext context = jexlContext == null
                ? new MapContext()
                : jexlContext;

        final Field[] fields = attributable.getClass().getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            try {
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    public JexlContext addAttrsToContext(final Collection<? extends AbstractAttr> attributes,
            final JexlContext jexlContext) {

        JexlContext context = jexlContext == null
                ? new MapContext()
                : jexlContext;

        for (AbstractAttr attr : attributes) {
            List<String> attributeValues = attr.getValuesAsStrings();
            String expressionValue = attributeValues.isEmpty()
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    public JexlContext addDerAttrsToContext(final Collection<? extends AbstractDerAttr> derAttrs,
            final Collection<? extends AbstractAttr> attrs, final JexlContext jexlContext) {

        JexlContext context = jexlContext == null
                ? new MapContext()
                : jexlContext;

        for (AbstractDerAttr derAttr : derAttrs) {
            String expressionValue = derAttr.getValue(attrs);
            if (expressionValue == null) {
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    public JexlContext addVirAttrsToContext(final Collection<? extends AbstractVirAttr> virAttrs,
            final JexlContext jexlContext) {

        JexlContext context = jexlContext == null
                ? new MapContext()
                : jexlContext;

        for (AbstractVirAttr virAttr : virAttrs) {
            List<String> attributeValues = virAttr.getValues();
            String expressionValue = attributeValues.isEmpty()
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        return context;
    }

    public String evaluate(final String expression, final AbstractAttributableTO attributableTO) {
        final JexlContext context = new MapContext();

        addFieldsToContext(attributableTO, context);

        for (AttributeTO attr : attributableTO.getAttributes()) {
            List<String> values = attr.getValues();
            String expressionValue = values.isEmpty()
                    ? ""
                    : values.get(0);

            LOG.debug("Add attribute {} with value {}", attr.getSchema(), expressionValue);

            context.set(attr.getSchema(), expressionValue);
        }
        for (AttributeTO derAttr : attributableTO.getDerivedAttributes()) {
            List<String> values = derAttr.getValues();
            String expressionValue = values.isEmpty()
                    ? ""
                    : values.get(0);

            LOG.debug("Add derived attribute {} with value {}", derAttr.getSchema(), expressionValue);

            context.set(derAttr.getSchema(), expressionValue);
        }
        for (AttributeTO virAttr : attributableTO.getVirtualAttributes()) {
            List<String> values = virAttr.getValues();
            String expressionValue = values.isEmpty()
                    ? ""
                    : values.get(0);

            LOG.debug("Add virtual attribute {} with value {}", virAttr.getSchema(), expressionValue);

            context.set(virAttr.getSchema(), expressionValue);
        }

        // Evaluate expression using the context prepared before
        return evaluate(expression, context);
    }
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        } 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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