Examples with ExpressionParser cn.taketoday.expression.ExpressionParser used on opensource projects

Example 1 with ExpressionParser

use of cn.taketoday.expression.ExpressionParser in project today-infrastructure by TAKETODAY.

the class SelectionAndProjectionTests method selectLastItemInMap.

@Test
@SuppressWarnings("unchecked")
void selectLastItemInMap() {
    EvaluationContext context = new StandardEvaluationContext(new MapTestBean());
    ExpressionParser parser = new SpelExpressionParser();
    Expression exp = parser.parseExpression("colors.$[key.startsWith('b')]");
    Map<String, String> colorsMap = (Map<String, String>) exp.getValue(context);
    assertThat(colorsMap.size()).isEqualTo(1);
    assertThat(colorsMap.keySet().iterator().next()).isEqualTo("brown");
}

Example 2 with ExpressionParser

use of cn.taketoday.expression.ExpressionParser in project today-infrastructure by TAKETODAY.

the class SelectionAndProjectionTests method selectFirstItemInMap.

@Test
@SuppressWarnings("unchecked")
void selectFirstItemInMap() {
    EvaluationContext context = new StandardEvaluationContext(new MapTestBean());
    ExpressionParser parser = new SpelExpressionParser();
    Expression exp = parser.parseExpression("colors.^[key.startsWith('b')]");
    Map<String, String> colorsMap = (Map<String, String>) exp.getValue(context);
    assertThat(colorsMap.size()).isEqualTo(1);
    assertThat(colorsMap.keySet().iterator().next()).isEqualTo("beige");
}

Example 3 with ExpressionParser

use of cn.taketoday.expression.ExpressionParser in project today-infrastructure by TAKETODAY.

the class ComparatorTests method customComparatorWorksWithEquality.

@Test
public void customComparatorWorksWithEquality() {
    final StandardEvaluationContext ctx = new StandardEvaluationContext();
    ctx.setTypeComparator(customComparator);
    ExpressionParser parser = new SpelExpressionParser();
    Expression expr = parser.parseExpression("'1' == 1");
    assertThat(expr.getValue(ctx, Boolean.class)).isTrue();
}

Example 4 with ExpressionParser

use of cn.taketoday.expression.ExpressionParser in project today-infrastructure by TAKETODAY.

the class MapAccessTests method testGetValueFromRootMap.

@Test
public void testGetValueFromRootMap() {
    Map<String, String> map = new HashMap<>();
    map.put("key", "value");
    ExpressionParser spelExpressionParser = new SpelExpressionParser();
    Expression expr = spelExpressionParser.parseExpression("#root['key']");
    assertThat(expr.getValue(map)).isEqualTo("value");
}

Example 5 with ExpressionParser

use of cn.taketoday.expression.ExpressionParser in project today-infrastructure by TAKETODAY.

the class MapAccessTests method testVariableMapAccess.

@Test
public void testVariableMapAccess() throws Exception {
    ExpressionParser parser = new SpelExpressionParser();
    StandardEvaluationContext ctx = TestScenarioCreator.getTestEvaluationContext();
    ctx.setVariable("day", "saturday");
    Expression expr = parser.parseExpression("testMap[#day]");
    Object value = expr.getValue(ctx, String.class);
    assertThat(value).isEqualTo("samstag");
}