Example usage for org.springframework.context.expression BeanExpressionContextAccessor BeanExpressionContextAccessor

Introduction

In this page you can find the example usage for org.springframework.context.expression BeanExpressionContextAccessor BeanExpressionContextAccessor.

Prototype

BeanExpressionContextAccessor

Source Link

Usage

From source file:com.arondor.common.reflection.parser.spring.BeanPropertyParser.java

public ElementConfiguration parseProperty(Object value) {
    LOGGER.debug("value : " + value);
    if (value instanceof TypedStringValue) {
        TypedStringValue stringValue = (TypedStringValue) value;
        if (stringValue.getTargetTypeName() != null) {
            return getEnumObjectConfiguration(stringValue);
        } else {//from  ww w  .j a va 2  s  .c o  m
            PrimitiveConfiguration primitiveConfiguration = objectConfigurationFactory
                    .createPrimitiveConfiguration();
            if (useSPEL(stringValue)) {
                ExpressionParser parser = new SpelExpressionParser();
                String expAsStringWithToken = stringValue.getValue().trim();
                String expAsString = expAsStringWithToken.substring(2, expAsStringWithToken.length() - 1)
                        .trim();
                LOGGER.trace("This property is a SPEL expression: " + expAsString);

                // String regex = "systemProperties\\['([^\\s]+)'\\]";

                Expression exp = parser.parseExpression(expAsString);
                StandardEvaluationContext sec = null;
                if (sec == null) {
                    sec = new StandardEvaluationContext();
                    sec.addPropertyAccessor(new EnvironmentAccessor());
                    sec.addPropertyAccessor(new BeanExpressionContextAccessor());
                    sec.addPropertyAccessor(new BeanFactoryAccessor());
                    sec.addPropertyAccessor(new MapAccessor());
                }
                primitiveConfiguration.setValue(String.valueOf(exp.getValue()));
            } else {
                LOGGER.trace("This property is NOT a SPEL expression: " + stringValue.getValue());
                primitiveConfiguration.setValue(stringValue.getValue());
            }
            return primitiveConfiguration;
        }
    } else if (value instanceof RuntimeBeanReference) {
        RuntimeBeanReference beanReference = (RuntimeBeanReference) value;
        ReferenceConfiguration referenceConfiguration = objectConfigurationFactory
                .createReferenceConfiguration();
        referenceConfiguration.setReferenceName(beanReference.getBeanName());
        return referenceConfiguration;
    } else if (value instanceof ManagedList<?>) {
        return parseValueList((ManagedList<?>) value);
    } else if (value instanceof ManagedMap<?, ?>) {
        return parseValueMap((ManagedMap<?, ?>) value);
    } else if (value instanceof BeanDefinitionHolder) {
        BeanDefinitionHolder beanDefinitionHolder = (BeanDefinitionHolder) value;
        return parseBeanDefinition(beanDefinitionHolder.getBeanDefinition());
    } else {
        throw new UnsupportedOperationException("The type of property value is not suppported : " + value
                + " (class : " + value.getClass().getName() + ")");
    }
}

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