Example usage for org.springframework.expression.spel.support StandardEvaluationContext StandardEvaluationContext

Introduction

In this page you can find the example usage for org.springframework.expression.spel.support StandardEvaluationContext StandardEvaluationContext.

Prototype

public StandardEvaluationContext(Object rootObject) 

Source Link

Document

Create a StandardEvaluationContext with the given root object.

Usage

From source file:com.enonic.cms.core.portal.datasource.el.ExpressionFunctionsExecutor.java

public String evaluate(final String expression) {
    final ExpressionRootObject rootObject = new ExpressionRootObject();

    rootObject.setSession(new SessionAccessor(verticalSession));
    rootObject.setCookie(new CookieAccessor(httpRequest));
    rootObject.setProperties(new CmsAndSitePropertiesAccessor(rootProperties, siteProperties));
    rootObject.setPortal(new PortalAccessor(expressionContext));
    rootObject.setUser(new UserAccessor(expressionContext.getUser()));
    rootObject.setParam(new ParamAccessor(requestParameters));
    rootObject.setParams(new ParamsAccessor(requestParameters));

    final String evaluatedString;

    try {//  w  w  w.ja va 2s . co m
        final StandardEvaluationContext context = new StandardEvaluationContext(rootObject);

        context.setPropertyAccessors(PROPERTY_ACCESSORS);

        ExpressionFunctionsFactory.get().setContext(expressionContext);

        Object result;

        try {
            final Expression exp = EXPR_FACTORY.parseExpression(expression, TEMPLATE_PARSER_CONTEXT);

            result = exp.getValue(context);
        } catch (SpelEvaluationException e) {
            result = null;
        } catch (Exception e) {
            LOG.error(e.getMessage());

            result = "ERROR: " + e.getMessage();
        }

        // must be converted here, because param.x[0] will not work
        if (result instanceof String[]) {
            evaluatedString = StringUtils.join((String[]) result, ',');
        } else {
            evaluatedString = result != null ? result.toString() : null;
        }
    } finally {
        ExpressionFunctionsFactory.get().removeContext();
    }

    return evaluatedString;
}

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From source file:org.apache.camel.language.spel.SpelExpression.java

private EvaluationContext createEvaluationContext(Exchange exchange) {
    StandardEvaluationContext evaluationContext = new StandardEvaluationContext(new RootObject(exchange));
    if (exchange.getContext() instanceof SpringCamelContext) {
        // Support references (like @foo) in expressions to beans defined in the Registry/ApplicationContext
        ApplicationContext applicationContext = ((SpringCamelContext) exchange.getContext())
                .getApplicationContext();
        evaluationContext.setBeanResolver(new BeanFactoryResolver(applicationContext));
    }/*from  w  ww  .  j  a v a2s. com*/
    return evaluationContext;
}

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From source file:uk.co.christhomson.sibyl.cache.connectors.HashMapConnector.java

public Map<?, ?> query(String cacheName, String query) throws CacheException {
    Map<Object, Object> results = new HashMap<Object, Object>();
    Map<?, ?> data = getCache(cacheName);

    ExpressionParser parser = new SpelExpressionParser();

    for (Object key : data.keySet()) {
        Object value = data.get(key);
        EvaluationContext keyContext = new StandardEvaluationContext(key);

        Expression exp = parser.parseExpression(query);
        boolean result = exp.getValue(keyContext, Boolean.class);

        if (result) {
            results.put(key, value);/*from  ww  w  .  ja  va  2  s.c  o  m*/
        }
    }

    return results;
}

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From source file:gov.nih.nci.calims2.taglib.form.SingleSelectViewTag.java

/**
 * Gets the value of the selected option.
 * //  w  ww  .  ja v  a  2s . c  o  m
 * @return the value of the selected option.
 */
@SuppressWarnings("unchecked")
private String getSelectedOptionForView() {
    if (selected == null) {
        return "";
    }
    if (collectionType == SelectCollectionType.ENUMERATIONS) {
        I18nEnumeration enumValue = (I18nEnumeration) selected;
        return enumValue.getLocalizedValue(TagHelper.getRequestContext(pageContext).getLocale());
    }
    if (optionCreatorCallback != null) {
        OptionCreatorCallback<Object> callback = (OptionCreatorCallback<Object>) optionCreatorCallback;
        return callback.getLabel(selected);
    }
    Map<String, Expression> propertyMap = SingleSelectHelper.getPropertyMap(properties);
    Expression labelProperty = propertyMap.get("label");
    EvaluationContext context = new StandardEvaluationContext(selected);
    return SingleSelectHelper.evaluateExpression(labelProperty, context);
}

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From source file:com.creactiviti.piper.core.task.SpelTaskEvaluator.java

private StandardEvaluationContext createEvaluationContext(Context aContext) {
    StandardEvaluationContext context = new StandardEvaluationContext(aContext);
    context.addPropertyAccessor(new MapPropertyAccessor());
    context.addMethodResolver(methodResolver());
    return context;
}

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From source file:net.nan21.dnet.core.presenter.converter.AbstractDsConverter.java

/**
 * Populate model fields from entity according to mappings.
 *///  ww w. j a  va2s .com

protected void entityToModel_(E e, M m, EntityManager em, Map<String, Method> setters,
        Map<String, String> refpaths) throws Exception {

    StandardEvaluationContext context = new StandardEvaluationContext(e);

    for (Map.Entry<String, Method> entry : setters.entrySet()) {
        String fieldName = entry.getKey();
        Method method = entry.getValue();

        if (method.getName().startsWith("set") && !method.getName().equals("set__clientRecordId__")) {
            try {
                method.invoke(m, parser.parseExpression(refpaths.get(fieldName)).getValue(context));
            } catch (Exception exc) {

            }
        }
    }
}

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From source file:com.google.code.activetemplates.impl.TemplateCompilerImpl.java

@Override
public void compile(final Template t, final TemplateModel model, XmlResult out)
        throws TemplateCompileException {

    final XmlSource s = t.createSource();
    XMLEventReader r = null;/*w ww. j  av a2  s  . co m*/
    XMLEventWriter w = null;
    try {
        r = inFactory.createXMLEventReader(s.getSource());
        w = outFactory.createXMLEventWriter(out.getResult());
        final XMLStreamException[] xe = new XMLStreamException[1];

        final XMLEventReader fr = r;
        final XMLEventWriter fw = w;

        StandardEvaluationContext eContext = new StandardEvaluationContext(model);
        eContext.addPropertyAccessor(new TemplateModelPropertyAccessor());

        CompileContext ctx = new CompileContext(fr, fw, eFactory, eComponentFactory, expressionParser,
                eContext);
        doCompile(t.getName(), ctx);

        if (xe[0] != null) {
            throw xe[0];
        }

    } catch (XMLStreamException e) {
        throw new TemplateCompileException(e);
    } finally {
        s.close();
        if (r != null)
            try {
                r.close();
            } catch (XMLStreamException e) {
            }
        if (w != null)
            try {
                w.close();
            } catch (XMLStreamException e) {
            }
    }
}

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From source file:de.itsvs.cwtrpc.security.DefaultRpcAuthenticationFailureHandler.java

protected EvaluationContext createEvaluationContext(HttpServletRequest request,
        AuthenticationException exception) {
    final StandardEvaluationContext evaluationContext;

    evaluationContext = new StandardEvaluationContext(exception);
    evaluationContext.setVariable("request", request);

    return evaluationContext;
}

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From source file:gov.nih.nci.calims2.taglib.form.SingleSelectTag.java

@SuppressWarnings("unchecked")
private String getSelectedId() {
    if (selected == null) {
        return "";
    }//from  w  w w  .j  av a  2  s. c o  m
    if (collectionType == SelectCollectionType.ENUMERATIONS) {
        return ((I18nEnumeration) selected).getName();
    }
    if (optionCreatorCallback != null) {
        OptionCreatorCallback<Object> callback = (OptionCreatorCallback<Object>) optionCreatorCallback;
        return StringUtils.stripToEmpty(callback.getId(selected));
    }
    Expression idProperty = propertyMap.get("id");
    EvaluationContext context = new StandardEvaluationContext(selected);
    return StringUtils.stripToEmpty(SingleSelectHelper.evaluateExpression(idProperty, context));
}

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From source file:net.nan21.dnet.core.presenter.converter.AbstractDsConverter.java

/**
 * Update entity attribute fields./*from   www  .  ja va 2s. com*/
 * 
 * @param m
 * @param e
 * @param isInsert
 * @param entityService
 * @throws Exception
 */
protected void modelToEntityAttributes(M m, E e, boolean isInsert, EntityManager em) throws Exception {
    StandardEvaluationContext context = new StandardEvaluationContext(m);
    Map<String, String> attrmap = this.descriptor.getM2eConv();
    Method[] methods = this.getEntityClass().getMethods();

    List<String> noInserts = this.descriptor.getNoInserts();
    List<String> noUpdates = this.descriptor.getNoUpdates();

    for (Method method : methods) {
        if (method.getName().startsWith("set")) {
            String fn = StringUtils.uncapitalize(method.getName().substring(3));
            boolean doit = true;
            if (attrmap.containsKey(fn)) {
                String dsf = attrmap.get(fn);
                if (isInsert && noInserts.contains(fn)) {
                    doit = false;
                }
                if (!isInsert && noUpdates.contains(fn)) {
                    doit = false;
                }

                try {
                    if (doit) {
                        method.invoke(e, parser.parseExpression(dsf).getValue(context));
                    }
                } catch (Exception exc) {

                }
            }
        }
    }
}

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