Example usage for org.springframework.expression ExpressionParser parseExpression

List of usage examples for org.springframework.expression ExpressionParser parseExpression

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Introduction

In this page you can find the example usage for org.springframework.expression ExpressionParser parseExpression.

Prototype

Expression parseExpression(String expressionString) throws ParseException;

Source Link

Document

Parse the expression string and return an Expression object you can use for repeated evaluation.

Usage

From source file:io.gravitee.gateway.services.healthcheck.EndpointHealthCheck.java

private void validateAssertions(final HealthStatus.Builder healthBuilder, final HealthCheckResponse response) {
    healthBuilder.success().status(response.getStatus());

    // Run assertions
    if (healthCheck.getExpectation().getAssertions() != null) {
        Iterator<String> assertionIterator = healthCheck.getExpectation().getAssertions().iterator();
        boolean success = true;
        while (success && assertionIterator.hasNext()) {
            String assertion = assertionIterator.next();
            ExpressionParser parser = new SpelExpressionParser();
            Expression expr = parser.parseExpression(assertion);

            StandardEvaluationContext context = new StandardEvaluationContext();
            context.registerFunction("jsonPath",
                    BeanUtils.resolveSignature("evaluate", JsonPathFunction.class));

            context.setVariable("response", response);

            success = expr.getValue(context, boolean.class);

            if (!success) {
                healthBuilder.message("Assertion can not be verified : " + assertion);
            }//from   w  ww.  j  a  v a 2s  .  com
        }

        healthBuilder.success(success);
    }
}

From source file:org.ldaptive.beans.spring.SpringClassDescriptor.java

/** {@inheritDoc} */
@Override//from w w w  .ja v  a 2 s . c  o  m
public void initialize(final Class<?> type) {
    // check for entry annotation
    final Entry entryAnnotation = AnnotationUtils.findAnnotation(type, Entry.class);
    if (entryAnnotation != null) {
        if (!entryAnnotation.dn().equals("")) {
            setDnValueMutator(new DnValueMutator() {
                @Override
                public String getValue(final Object object) {
                    final ExpressionParser parser = new SpelExpressionParser();
                    final Expression exp = parser.parseExpression(entryAnnotation.dn());
                    return exp.getValue(context, object, String.class);
                }

                @Override
                public void setValue(final Object object, final String value) {
                }
            });
        }
        for (final Attribute attr : entryAnnotation.attributes()) {
            final String expr = attr.property();
            final ExpressionParser parser = new SpelExpressionParser();
            final Expression exp = parser.parseExpression(expr);
            addAttributeValueMutator(new AttributeValueMutator() {
                @Override
                public String getName() {
                    return attr.name();
                }

                @Override
                public boolean isBinary() {
                    return attr.binary();
                }

                @Override
                public SortBehavior getSortBehavior() {
                    return attr.sortBehavior();
                }

                @Override
                public Collection<String> getStringValues(final Object object) {
                    @SuppressWarnings("unchecked")
                    final Collection<String> values = (Collection<String>) exp.getValue(context, object,
                            Collection.class);
                    return values;
                }

                @Override
                public Collection<byte[]> getBinaryValues(final Object object) {
                    @SuppressWarnings("unchecked")
                    final Collection<byte[]> values = (Collection<byte[]>) exp.getValue(context, object,
                            Collection.class);
                    return values;
                }

                @Override
                public void setStringValues(final Object object, final Collection<String> values) {
                    exp.setValue(context, object, values);
                }

                @Override
                public void setBinaryValues(final Object object, final Collection<byte[]> values) {
                    exp.setValue(context, object, values);
                }
            });
        }
    }
}

From source file:app.web.InterpreterController.java

@RequestMapping("/interpreter/run")
public ModelAndView run(@RequestParam("script") String script) {
    Transaction transaction = Db.getSession().beginTransaction();
    // Groovy Shell
    //        Binding binding = new Binding();
    //        binding.setVariable("userService", userService); // FIXME: go through ApplicationContext or try to use SpEl instead?
    //        Object result = new GroovyShell(binding).parse(script).run();
    // Groovy Interpreter
    //        Object result = GroovyInterpreter.run(script);
    // SpEl/*w w w  .ja v a 2s .c om*/
    ExpressionParser parser = new SpelExpressionParser();
    StandardEvaluationContext ctx = new StandardEvaluationContext();
    ctx.setBeanResolver(new BeanFactoryResolver(beanFactory));
    Object result = parser.parseExpression(script).getValue(ctx);
    //        Db.flush(); // can not flush here, we get org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here
    transaction.commit();

    Map<String, Object> map = new HashMap<String, Object>();
    map.put("script", script);
    map.put("result", result != null ? result.toString().replaceAll("\n", "<br/>").replaceAll(" ", "&nbsp;")
            : Void.class.getSimpleName());
    return new ModelAndView("/interpreter", map);
}

From source file:org.ldaptive.beans.spring.SpelAttributeValueMutator.java

/**
 * Creates a new spel attribute value mutator.
 *
 * @param  attr  containing the SPEL configuration
 * @param  context  containing the values
 *///ww w .  j av a 2  s  .  com
public SpelAttributeValueMutator(final Attribute attr, final EvaluationContext context) {
    attribute = attr;

    final ExpressionParser parser = new SpelExpressionParser();
    expression = parser
            .parseExpression(attribute.property().length() > 0 ? attribute.property() : attribute.name());
    evaluationContext = context;
    if ("".equals(attribute.transcoder())) {
        transcoder = null;
    } else {
        transcoder = parser.parseExpression(attribute.transcoder()).getValue(ValueTranscoder.class);
    }
}

From source file:py.una.pol.karaku.audit.Auditor.java

/**
 * @param annotation//from   w w  w.  j a  v a 2 s.co  m
 * @param methodSignature
 * @param target
 * @param gS
 */
public void doAudit(Audit annotation, String methodSignature, Object target, Object[] params) {

    AuditTrail auditTrail = new AuditTrail();

    List<AuditTrailDetail> details = new ArrayList<AuditTrailDetail>();
    auditTrail.setMethodSignature(methodSignature);

    auditTrail.setIp(util.getIpAdress());

    auditTrail.setUsername(authorityController.getUsername());

    String[] toAudit = annotation.toAudit();
    String[] paramsToAudit = annotation.paramsToAudit();
    ExpressionParser parser = new SpelExpressionParser();
    if (toAudit != null) {
        for (String string : toAudit) {
            Expression exp = parser.parseExpression(string);

            Object value = exp.getValue(target);
            AuditTrailDetail detail = new AuditTrailDetail();
            detail.setHeader(auditTrail);
            detail.setValue((Serializable) value);
            detail.setExpression(string);
            details.add(detail);
            log.info("Audit {}:{}", string, value);
        }
    }

    if (paramsToAudit != null) {
        for (String string : paramsToAudit) {

            Integer nroParm = getParamNumber(string);
            String expression = removeParamNumber(string);
            Object value;
            if (expression == null) {
                value = params[nroParm];
            } else {
                Expression exp = parser.parseExpression(expression);
                value = exp.getValue(params[nroParm]);
            }
            AuditTrailDetail detail = new AuditTrailDetail();
            detail.setHeader(auditTrail);
            detail.setValue((Serializable) value);
            detail.setExpression(string);
            details.add(detail);
        }
    }
    logic.saveAudit(auditTrail, details);

}

From source file:org.craftercms.security.processors.impl.UrlAccessRestrictionCheckingProcessor.java

/**
 * Sets the map of restrictions. Each key of the map is ANT-style path pattern, used to match the URLs of incoming
 * requests, and each value is a Spring EL expression.
 *///from   ww  w  .j  av  a  2 s .  co m
@Required
public void setUrlRestrictions(Map<String, String> restrictions) {
    urlRestrictions = new LinkedHashMap<>();

    ExpressionParser parser = new SpelExpressionParser();

    for (Map.Entry<String, String> entry : restrictions.entrySet()) {
        urlRestrictions.put(entry.getKey(), parser.parseExpression(entry.getValue()));
    }
}

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);//w  w w. ja  va2 s.c o m
        }
    }

    return results;
}

From source file:org.gvnix.datatables.tags.RooTableTag.java

/**
 * Gets Id content/*from w  ww .  j ava 2 s  .  com*/
 * 
 * @return
 * @throws JspException
 */
protected String getIdContent() throws JspException {
    ExpressionParser parser = new SpelExpressionParser();
    Expression exp = parser.parseExpression(this.rowIdBase);
    EvaluationContext context = new StandardEvaluationContext(currentObject);

    Object value = exp.getValue(context);
    String result = "";

    if (value == null) {
        // Use AbstractTablaTag standard behavior
        try {
            value = PropertyUtils.getNestedProperty(this.currentObject, this.rowIdBase);

        } catch (IllegalAccessException e) {
            LOGGER.error("Unable to get the value for the given rowIdBase {}", this.rowIdBase);
            throw new JspException(e);
        } catch (InvocationTargetException e) {
            LOGGER.error("Unable to get the value for the given rowIdBase {}", this.rowIdBase);
            throw new JspException(e);
        } catch (NoSuchMethodException e) {
            LOGGER.error("Unable to get the value for the given rowIdBase {}", this.rowIdBase);
            throw new JspException(e);
        }
    }

    if (value != null) {
        // TODO manage exceptions to log it
        ConversionService conversionService = (ConversionService) helper.getBean(this.pageContext,
                getConversionServiceId());
        if (conversionService != null && conversionService.canConvert(value.getClass(), String.class)) {
            result = conversionService.convert(value, String.class);
        } else {
            result = ObjectUtils.getDisplayString(value);
        }
        result = HtmlUtils.htmlEscape(result);
    }

    return result;
}

From source file:org.shredzone.cilla.web.fragment.manager.FragmentInvoker.java

/**
 * Creates a new {@link FragmentInvoker}.
 *
 * @param bean/*www .  j a va 2s  .c  o m*/
 *            target Spring bean to be invoked
 * @param method
 *            target method to be invoked
 * @param template
 *            JSP template to be used for rendering, or {@code null} if none is
 *            defined
 * @param conversionService
 *            {@link ConversionService} to be used for converting
 */
public FragmentInvoker(Object bean, Method method, String template, ConversionService conversionService) {
    this.bean = bean;
    this.method = method;
    this.template = template;
    this.conversionService = conversionService;

    Annotation[][] annotations = method.getParameterAnnotations();
    expressions = new Expression[annotations.length];
    items = new boolean[annotations.length];

    ExpressionParser parser = new SpelExpressionParser();

    for (int ix = 0; ix < annotations.length; ix++) {
        for (Annotation sub : annotations[ix]) {
            if (sub instanceof FragmentValue) {
                expressions[ix] = parser.parseExpression(((FragmentValue) sub).value());
            } else if (sub instanceof FragmentItem) {
                items[ix] = true;
            }
        }
    }
}

From source file:org.gvnix.datatables.tags.RooColumnTag.java

@Override
protected String getColumnContent() throws JspException {

    // Try to do the same as the roo table.tagx tag to get the value for the
    // column//from   ww w  . j a v a 2  s  .  c  o  m
    // <c:choose>
    // <c:when test="${columnType eq 'date'}">
    // <spring:escapeBody>
    // <fmt:formatDate value="${item[column]}"
    // pattern="${fn:escapeXml(columnDatePattern)}" var="colTxt" />
    // </spring:escapeBody>
    // </c:when>
    // <c:when test="${columnType eq 'calendar'}">
    // <spring:escapeBody>
    // <fmt:formatDate value="${item[column].time}"
    // pattern="${fn:escapeXml(columnDatePattern)}" var="colTxt"/>
    // </spring:escapeBody>
    // </c:when>
    // <c:otherwise>
    // <c:set var="colTxt">
    // <spring:eval expression="item[column]" htmlEscape="false" />
    // </c:set>
    // </c:otherwise>
    // </c:choose>
    // <c:if test="${columnMaxLength ge 0}">
    // <c:set value="${fn:substring(colTxt, 0, columnMaxLength)}"
    // var="colTxt" />
    // </c:if>
    // <c:out value="${colTxt}" />

    // TODO log problem resolving column content

    if (StringUtils.isBlank(this.property)) {
        return "";
    }
    TableTag parent = (TableTag) getParent();

    ExpressionParser parser = new SpelExpressionParser();
    String unescapedProperty = this.property.replace(SEPARATOR_FIELDS_ESCAPED, SEPARATOR_FIELDS);
    Expression exp = parser.parseExpression(unescapedProperty);
    EvaluationContext context = new StandardEvaluationContext(parent.getCurrentObject());

    Object value = exp.getValue(context);
    String result = "";

    if (value != null) {

        if (Date.class.isAssignableFrom(value.getClass())) {
            result = dateTimePattern.format(value);
        } else if (value instanceof Calendar) {
            result = dateTimePattern.format(((Calendar) value).getTime());
        } else {
            ConversionService conversionService = (ConversionService) helper.getBean(this.pageContext,
                    getConversionServiceId());
            if (conversionService != null && conversionService.canConvert(value.getClass(), String.class)) {
                result = conversionService.convert(value, String.class);
            } else {
                result = ObjectUtils.getDisplayString(value);
            }
            // result = (isHtmlEscape() ? HtmlUtils.htmlEscape(result) :
            // result);
            // result = (this.javaScriptEscape ?
            // JavaScriptUtils.javaScriptEscape(result) : result);
        }

    } else {
        result = super.getColumnContent();
    }
    if (maxLength >= 0 && result.length() > maxLength) {
        result = result.substring(0, maxLength);
    }

    return result;
}