Examples with ELContextImpl org.apache.jasper.el.ELContextImpl used on opensource projects

Example 46 with ELContextImpl

use of org.apache.jasper.el.ELContextImpl in project tomcat by apache.

the class TestValueExpressionImpl method testBug51177ObjectList.

@Test
public void testBug51177ObjectList() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);
    Object o1 = "String value";
    Object o2 = Integer.valueOf(32);
    List<Object> list = new ArrayList<>();
    list.add(0, o1);
    list.add(1, o2);
    ValueExpression var = factory.createValueExpression(list, List.class);
    context.getVariableMapper().setVariable("list", var);
    ValueExpression ve1 = factory.createValueExpression(context, "${list[0]}", Object.class);
    ve1.setValue(context, o2);
    Assert.assertEquals(o2, ve1.getValue(context));
    ValueExpression ve2 = factory.createValueExpression(context, "${list[1]}", Object.class);
    ve2.setValue(context, o1);
    Assert.assertEquals(o1, ve2.getValue(context));
}

Example 47 with ELContextImpl

use of org.apache.jasper.el.ELContextImpl in project tomcat by apache.

the class JspApplicationContextImpl method createELContext.

public ELContextImpl createELContext(JspContext context) {
    if (context == null) {
        throw new IllegalArgumentException(Localizer.getMessage("jsp.error.nullArgument"));
    }
    // create ELContext for JspContext
    final ELResolver r = this.createELResolver();
    ELContextImpl ctx;
    if (Constants.IS_SECURITY_ENABLED) {
        ctx = AccessController.doPrivileged((PrivilegedAction<ELContextImpl>) () -> new ELContextImpl(r));
    } else {
        ctx = new ELContextImpl(r);
    }
    ctx.putContext(JspContext.class, context);
    // alert all ELContextListeners
    fireListeners(ctx);
    return ctx;
}

Example 48 with ELContextImpl

use of org.apache.jasper.el.ELContextImpl in project tomcat by apache.

the class PageContextImpl method proprietaryEvaluate.

/**
 * Proprietary method to evaluate EL expressions. XXX - This method should
 * go away once the EL interpreter moves out of JSTL and into its own
 * project. For now, this is necessary because the standard machinery is too
 * slow.
 *
 * @param expression
 *            The expression to be evaluated
 * @param expectedType
 *            The expected resulting type
 * @param pageContext
 *            The page context
 * @param functionMap
 *            Maps prefix and name to Method
 * @return The result of the evaluation
 * @throws ELException If an error occurs during the evaluation
 */
public static Object proprietaryEvaluate(final String expression, final Class<?> expectedType, final PageContext pageContext, final ProtectedFunctionMapper functionMap) throws ELException {
    final ExpressionFactory exprFactory = jspf.getJspApplicationContext(pageContext.getServletContext()).getExpressionFactory();
    ELContext ctx = pageContext.getELContext();
    ELContextImpl ctxImpl;
    if (ctx instanceof ELContextWrapper) {
        ctxImpl = (ELContextImpl) ((ELContextWrapper) ctx).getWrappedELContext();
    } else {
        ctxImpl = (ELContextImpl) ctx;
    }
    ctxImpl.setFunctionMapper(functionMap);
    ValueExpression ve = exprFactory.createValueExpression(ctx, expression, expectedType);
    return ve.getValue(ctx);
}

Example 49 with ELContextImpl

use of org.apache.jasper.el.ELContextImpl in project tomcat by apache.

the class TestAttributeParser method evalAttr.

private String evalAttr(String expression, char quote) {
    ExpressionFactoryImpl exprFactory = new ExpressionFactoryImpl();
    ELContextImpl ctx = new ELContextImpl(exprFactory);
    ctx.setFunctionMapper(new TesterFunctions.FMapper());
    ValueExpression ve = exprFactory.createValueExpression(ctx, AttributeParser.getUnquoted(expression, quote, false, false, false, false), String.class);
    return (String) ve.getValue(ctx);
}