Examples with Expression org.springframework.expression.Expression used on opensource projects

Example 76 with Expression

use of org.springframework.expression.Expression in project spring-framework by spring-projects.

the class PropertiesConversionSpelTests method props.

@Test
public void props() {
    Properties props = new Properties();
    props.setProperty("x", "1");
    props.setProperty("y", "2");
    props.setProperty("z", "3");
    Expression expression = parser.parseExpression("foo(#props)");
    StandardEvaluationContext context = new StandardEvaluationContext();
    context.setVariable("props", props);
    String result = expression.getValue(context, new TestBean(), String.class);
    assertEquals("123", result);
}

Example 77 with Expression

use of org.springframework.expression.Expression in project spring-framework by spring-projects.

the class SpelReproTests method SPR5847.

@Test
public void SPR5847() throws Exception {
    StandardEvaluationContext eContext = new StandardEvaluationContext(new TestProperties());
    String name = null;
    Expression expr = null;
    expr = new SpelExpressionParser().parseRaw("jdbcProperties['username']");
    name = expr.getValue(eContext, String.class);
    assertEquals("Dave", name);
    expr = new SpelExpressionParser().parseRaw("jdbcProperties[username]");
    name = expr.getValue(eContext, String.class);
    assertEquals("Dave", name);
    // MapAccessor required for this to work
    expr = new SpelExpressionParser().parseRaw("jdbcProperties.username");
    eContext.addPropertyAccessor(new MapAccessor());
    name = expr.getValue(eContext, String.class);
    assertEquals("Dave", name);
    // --- dotted property names
    // lookup foo on the root, then bar on that, then use that as the key into
    // jdbcProperties
    expr = new SpelExpressionParser().parseRaw("jdbcProperties[foo.bar]");
    eContext.addPropertyAccessor(new MapAccessor());
    name = expr.getValue(eContext, String.class);
    assertEquals("Dave2", name);
    // key is foo.bar
    expr = new SpelExpressionParser().parseRaw("jdbcProperties['foo.bar']");
    eContext.addPropertyAccessor(new MapAccessor());
    name = expr.getValue(eContext, String.class);
    assertEquals("Elephant", name);
}

Example 78 with Expression

use of org.springframework.expression.Expression in project spring-framework by spring-projects.

the class SpelReproTests method SPR9495.

@Test
public void SPR9495() throws Exception {
    SpelParserConfiguration configuration = new SpelParserConfiguration(false, false);
    ExpressionParser parser = new SpelExpressionParser(configuration);
    StandardEvaluationContext context = new StandardEvaluationContext();
    Expression spel = parser.parseExpression("#enumType.values()");
    context.setVariable("enumType", ABC.class);
    Object result = spel.getValue(context);
    assertNotNull(result);
    assertTrue(result.getClass().isArray());
    assertEquals(ABC.A, Array.get(result, 0));
    assertEquals(ABC.B, Array.get(result, 1));
    assertEquals(ABC.C, Array.get(result, 2));
    context.addMethodResolver(new MethodResolver() {

        @Override
        public MethodExecutor resolve(EvaluationContext context, Object targetObject, String name, List<TypeDescriptor> argumentTypes) throws AccessException {
            return new MethodExecutor() {

                @Override
                public TypedValue execute(EvaluationContext context, Object target, Object... arguments) throws AccessException {
                    try {
                        Method method = XYZ.class.getMethod("values");
                        Object value = method.invoke(target, arguments);
                        return new TypedValue(value, new TypeDescriptor(new MethodParameter(method, -1)).narrow(value));
                    } catch (Exception ex) {
                        throw new AccessException(ex.getMessage(), ex);
                    }
                }
            };
        }
    });
    result = spel.getValue(context);
    assertNotNull(result);
    assertTrue(result.getClass().isArray());
    assertEquals(XYZ.X, Array.get(result, 0));
    assertEquals(XYZ.Y, Array.get(result, 1));
    assertEquals(XYZ.Z, Array.get(result, 2));
}

Example 79 with Expression

use of org.springframework.expression.Expression in project spring-framework by spring-projects.

the class SpelReproTests method SPR9486_floatNotEqDouble.

@Test
public void SPR9486_floatNotEqDouble() {
    Boolean expectedResult = 10.215f != 10.2109;
    ExpressionParser parser = new SpelExpressionParser();
    StandardEvaluationContext context = new StandardEvaluationContext();
    Expression expression = parser.parseExpression("10.215f != 10.2109");
    Boolean result = expression.getValue(context, null, Boolean.class);
    assertEquals(expectedResult, result);
}

Example 80 with Expression

use of org.springframework.expression.Expression in project spring-framework by spring-projects.

the class SpelReproTests method SPR9486_floatLessThanDouble.

@Test
public void SPR9486_floatLessThanDouble() {
    Boolean expectedNumber = -10.21f < -10.2;
    ExpressionParser parser = new SpelExpressionParser();
    StandardEvaluationContext context = new StandardEvaluationContext();
    Expression expression = parser.parseExpression("-10.21f < -10.2");
    Boolean result = expression.getValue(context, null, Boolean.class);
    assertEquals(expectedNumber, result);
}