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

Example 11 with ExpressionFactory

use of javax.el.ExpressionFactory in project tomcat70 by apache.

the class TestValueExpressionImpl method testGetValueReferenceVariable.

@Test
public void testGetValueReferenceVariable() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();
    TesterBeanB beanB = new TesterBeanB();
    beanB.setName("Tomcat");
    ValueExpression var = factory.createValueExpression(beanB, TesterBeanB.class);
    context.getVariableMapper().setVariable("beanB", var);
    ValueExpression var2 = factory.createValueExpression(context, "${beanB.name}", String.class);
    context.getVariableMapper().setVariable("foo", var2);
    ValueExpression ve = factory.createValueExpression(context, "${foo}", ValueExpression.class);
    // Now check the value reference
    ValueReference vr = ve.getValueReference(context);
    Assert.assertNotNull(vr);
    Assert.assertEquals(beanB, vr.getBase());
    Assert.assertEquals("name", vr.getProperty());
}

Example 12 with ExpressionFactory

use of javax.el.ExpressionFactory in project tomcat70 by apache.

the class TestValueExpressionImpl method testBug51177ObjectList.

@Test
public void testBug51177ObjectList() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();
    Object o1 = "String value";
    Object o2 = Integer.valueOf(32);
    List<Object> list = new ArrayList<Object>();
    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 13 with ExpressionFactory

use of javax.el.ExpressionFactory in project tomcat70 by apache.

the class TestValueExpressionImpl method testGetValueReference.

@Test
public void testGetValueReference() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();
    TesterBeanB beanB = new TesterBeanB();
    beanB.setName("Tomcat");
    ValueExpression var = factory.createValueExpression(beanB, TesterBeanB.class);
    context.getVariableMapper().setVariable("beanB", var);
    ValueExpression ve = factory.createValueExpression(context, "${beanB.name}", String.class);
    // First check the basics work
    String result = (String) ve.getValue(context);
    Assert.assertEquals("Tomcat", result);
    // Now check the value reference
    ValueReference vr = ve.getValueReference(context);
    Assert.assertNotNull(vr);
    Assert.assertEquals(beanB, vr.getBase());
    Assert.assertEquals("name", vr.getProperty());
}

Example 14 with ExpressionFactory

use of javax.el.ExpressionFactory in project tomcat70 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 {
            ExpressionFactory factory = ExpressionFactory.newInstance();
            ELContext context = new ELContextImpl();
            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 15 with ExpressionFactory

use of javax.el.ExpressionFactory in project tomcat70 by apache.

the class TestELParser method doTestBug56179.

private void doTestBug56179(int parenthesesCount, String innerExpr) {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();
    ValueExpression var = factory.createValueExpression(Boolean.TRUE, Boolean.class);
    context.getVariableMapper().setVariable("test", var);
    StringBuilder expr = new StringBuilder();
    expr.append("${");
    for (int i = 0; i < parenthesesCount; i++) {
        expr.append("(");
    }
    expr.append(innerExpr);
    for (int i = 0; i < parenthesesCount; i++) {
        expr.append(")");
    }
    expr.append("}");
    ValueExpression ve = factory.createValueExpression(context, expr.toString(), String.class);
    String result = (String) ve.getValue(context);
    Assert.assertEquals("true", result);
}