Examples with ValueExpression javax.el.ValueExpression used on opensource projects

Example 56 with ValueExpression

use of javax.el.ValueExpression in project jersey by jersey.

the class ELLinkBuilder method getParameterValues.

private static Map<String, Object> getParameterValues(List<String> parameterNames, InjectLinkDescriptor linkField, LinkELContext context, UriInfo uriInfo) {
    Map<String, Object> values = new HashMap<>();
    for (String name : parameterNames) {
        String elExpression = linkField.getBinding(name);
        if (elExpression == null) {
            String value = uriInfo.getPathParameters().getFirst(name);
            if (value == null) {
                value = uriInfo.getQueryParameters().getFirst(name);
            }
            if (value != null) {
                values.put(name, value);
                continue;
            }
            elExpression = "${" + ResponseContextResolver.INSTANCE_OBJECT + "." + name + "}";
        }
        ValueExpression expr = expressionFactory.createValueExpression(context, elExpression, String.class);
        Object value = expr.getValue(context);
        values.put(name, value != null ? value.toString() : null);
    }
    return values;
}

Example 57 with ValueExpression

use of javax.el.ValueExpression in project jersey by jersey.

the class LinkELContextTest method testEmbeddedExpression.

@Test
public void testEmbeddedExpression() {
    System.out.println("Embedded expression");
    ExpressionFactory factory = ExpressionFactory.newInstance();
    LinkELContext context = new LinkELContext(new EntityBean(), null);
    ValueExpression expr = factory.createValueExpression(context, "foo/${entity.id}/bar", String.class);
    Object value = expr.getValue(context);
    assertEquals("foo/" + ID + "/bar", value);
}

Example 58 with ValueExpression

use of javax.el.ValueExpression in project jersey by jersey.

the class LinkELContextTest method testMultipleExpressions.

@Test
public void testMultipleExpressions() {
    System.out.println("Multiple expressions");
    ExpressionFactory factory = ExpressionFactory.newInstance();
    LinkELContext context = new LinkELContext(new EntityBean(), null);
    ValueExpression expr = factory.createValueExpression(context, "foo/${entity.id}/bar/${entity.name}", String.class);
    Object value = expr.getValue(context);
    assertEquals("foo/" + ID + "/bar/" + NAME, value);
}

Example 59 with ValueExpression

use of javax.el.ValueExpression in project camel by apache.

the class JuelExpression method evaluate.

public <T> T evaluate(Exchange exchange, Class<T> tClass) {
    // Create (if needed) the ExpressionFactory first from the CamelContext using FactoryFinder
    ExpressionFactory factory = getExpressionFactory(exchange.getContext());
    ELContext context = populateContext(createContext(), exchange);
    ValueExpression valueExpression = factory.createValueExpression(context, expression, type);
    Object value = valueExpression.getValue(context);
    LOG.trace("Value returned {}", value);
    return exchange.getContext().getTypeConverter().convertTo(tClass, value);
}