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

Example 21 with ELContext

use of javax.el.ELContext in project tomcat by apache.

the class TestValueExpressionImpl method testBug51544Bean.

/*
     * Test returning an empty list as a bean property.
     */
@Test
public void testBug51544Bean() throws Exception {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);
    TesterBeanA beanA = new TesterBeanA();
    beanA.setValList(Collections.emptyList());
    ValueExpression var = factory.createValueExpression(beanA, TesterBeanA.class);
    context.getVariableMapper().setVariable("beanA", var);
    ValueExpression ve = factory.createValueExpression(context, "${beanA.valList.size()}", Integer.class);
    Integer result = (Integer) ve.getValue(context);
    assertEquals(Integer.valueOf(0), result);
}

Example 22 with ELContext

use of javax.el.ELContext in project tomcat by apache.

the class TesterVariableMapperImpl method testSetVariable01.

@Test
public void testSetVariable01() {
    ExpressionFactory factory = ELManager.getExpressionFactory();
    ELContext context = new TesterELContext();
    ValueExpression ve1 = factory.createValueExpression(context, "${1}", int.class);
    ValueExpression ve2 = factory.createValueExpression(context, "${2}", int.class);
    ValueExpression ve3 = factory.createValueExpression(context, "${3}", int.class);
    VariableMapper mapper = new VariableMapperImpl();
    mapper.setVariable("var1", ve1);
    mapper.setVariable("var2", ve2);
    mapper.setVariable("var3", ve3);
    mapper.setVariable("var2", null);
    Assert.assertEquals(ve1, mapper.resolveVariable("var1"));
    Assert.assertNull(mapper.resolveVariable("var2"));
    Assert.assertEquals(ve3, mapper.resolveVariable("var3"));
}

Example 23 with ELContext

use of javax.el.ELContext in project tomcat by apache.

the class TestAstAssign method testGetType01.

@Test
public void testGetType01() {
    ELProcessor processor = new ELProcessor();
    ELContext context = processor.getELManager().getELContext();
    ExpressionFactory factory = ELManager.getExpressionFactory();
    processor.defineBean("bean01", new TesterBeanB());
    ValueExpression ve = factory.createValueExpression(context, "${bean01.text = 'hello'}", String.class);
    Assert.assertEquals(String.class, ve.getType(context));
    Assert.assertEquals("hello", ve.getValue(context));
}

Example 24 with ELContext

use of javax.el.ELContext in project tomcat by apache.

the class TestELParser method doTestParser.

private void doTestParser(String input, String expectedResult, String expectedBuilderOutput) throws JasperException {
    ELException elException = null;
    String elResult = null;
    // Don't try and evaluate expressions that depend on variables or functions
    if (expectedResult != null) {
        try {
            ELManager manager = new ELManager();
            ELContext context = manager.getELContext();
            ExpressionFactory factory = ELManager.getExpressionFactory();
            ValueExpression ve = factory.createValueExpression(context, input, String.class);
            elResult = ve.getValue(context).toString();
            Assert.assertEquals(expectedResult, elResult);
        } catch (ELException ele) {
            elException = ele;
        }
    }
    Nodes nodes = null;
    try {
        nodes = ELParser.parse(input, false);
        Assert.assertNull(elException);
    } catch (IllegalArgumentException iae) {
        Assert.assertNotNull(elResult, elException);
        // Not strictly true but enables us to report both
        iae.initCause(elException);
        throw iae;
    }
    TextBuilder textBuilder = new TextBuilder(false);
    nodes.visit(textBuilder);
    Assert.assertEquals(expectedBuilderOutput, textBuilder.getText());
}

Example 25 with ELContext

use of javax.el.ELContext in project tomcat by apache.

the class TestAstSetData method testGetType.

@Test
public void testGetType() {
    ELProcessor processor = new ELProcessor();
    ELContext context = processor.getELManager().getELContext();
    ExpressionFactory factory = ELManager.getExpressionFactory();
    ValueExpression ve = factory.createValueExpression(context, "${{'a','b','c'}}", Set.class);
    Assert.assertEquals(Set.class, ve.getType(context));
    Assert.assertEquals(simpleSet, ve.getValue(context));
}