Examples with SpelExpression org.springframework.expression.spel.standard.SpelExpression used on opensource projects

Example 11 with SpelExpression

use of org.springframework.expression.spel.standard.SpelExpression in project spring-framework by spring-projects.

the class LiteralTests method testNotWritable.

@Test
public void testNotWritable() throws Exception {
    SpelExpression expr = (SpelExpression) parser.parseExpression("37");
    assertThat(expr.isWritable(new StandardEvaluationContext())).isFalse();
    expr = (SpelExpression) parser.parseExpression("37L");
    assertThat(expr.isWritable(new StandardEvaluationContext())).isFalse();
    expr = (SpelExpression) parser.parseExpression("true");
    assertThat(expr.isWritable(new StandardEvaluationContext())).isFalse();
}

Example 12 with SpelExpression

use of org.springframework.expression.spel.standard.SpelExpression in project spring-framework by spring-projects.

the class MapTests method testMapKeysThatAreAlsoSpELKeywords.

@Test
public void testMapKeysThatAreAlsoSpELKeywords() {
    SpelExpressionParser parser = new SpelExpressionParser();
    SpelExpression expression = null;
    Object o = null;
    // expression = (SpelExpression) parser.parseExpression("foo['NEW']");
    // o = expression.getValue(new MapHolder());
    // assertEquals("VALUE",o);
    expression = (SpelExpression) parser.parseExpression("foo[T]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("TV");
    expression = (SpelExpression) parser.parseExpression("foo[t]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("tv");
    expression = (SpelExpression) parser.parseExpression("foo[NEW]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("VALUE");
    expression = (SpelExpression) parser.parseExpression("foo[new]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("value");
    expression = (SpelExpression) parser.parseExpression("foo['abc.def']");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("value");
    expression = (SpelExpression) parser.parseExpression("foo[foo[NEW]]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("37");
    expression = (SpelExpression) parser.parseExpression("foo[foo[new]]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("38");
    expression = (SpelExpression) parser.parseExpression("foo[foo[foo[T]]]");
    o = expression.getValue(new MapHolder());
    assertThat(o).isEqualTo("value");
}

Example 13 with SpelExpression

use of org.springframework.expression.spel.standard.SpelExpression in project spring-framework by spring-projects.

the class OperatorOverloaderTests method testSimpleOperations.

@Test
public void testSimpleOperations() throws Exception {
    // no built in support for this:
    evaluateAndCheckError("'abc'-true", SpelMessage.OPERATOR_NOT_SUPPORTED_BETWEEN_TYPES);
    StandardEvaluationContext eContext = TestScenarioCreator.getTestEvaluationContext();
    eContext.setOperatorOverloader(new StringAndBooleanAddition());
    SpelExpression expr = (SpelExpression) parser.parseExpression("'abc'+true");
    assertThat(expr.getValue(eContext)).isEqualTo("abctrue");
    expr = (SpelExpression) parser.parseExpression("'abc'-true");
    assertThat(expr.getValue(eContext)).isEqualTo("abc");
    expr = (SpelExpression) parser.parseExpression("'abc'+null");
    assertThat(expr.getValue(eContext)).isEqualTo("abcnull");
}

Example 14 with SpelExpression

use of org.springframework.expression.spel.standard.SpelExpression in project spring-framework by spring-projects.

the class SpelCompilationCoverageTests method mixingItUp_propertyAccessIndexerOpLtTernaryRootNull.

@Test
void mixingItUp_propertyAccessIndexerOpLtTernaryRootNull() {
    Payload payload = new Payload();
    expression = parser.parseExpression("DR[0].three");
    Object v = expression.getValue(payload);
    assertThat(getAst().getExitDescriptor()).isEqualTo("Lorg/springframework/expression/spel/SpelCompilationCoverageTests$Three");
    Expression expression = parser.parseExpression("DR[0].three.four lt 0.1d?#root:null");
    v = expression.getValue(payload);
    SpelExpression sExpr = (SpelExpression) expression;
    Ternary ternary = (Ternary) sExpr.getAST();
    OpLT oplt = (OpLT) ternary.getChild(0);
    CompoundExpression cExpr = (CompoundExpression) oplt.getLeftOperand();
    String cExprExitDescriptor = cExpr.getExitDescriptor();
    assertThat(cExprExitDescriptor).isEqualTo("D");
    assertThat(oplt.getExitDescriptor()).isEqualTo("Z");
    assertCanCompile(expression);
    Object vc = expression.getValue(payload);
    assertThat(v).isEqualTo(payload);
    assertThat(vc).isEqualTo(payload);
    payload.DR[0].three.four = 0.13d;
    vc = expression.getValue(payload);
    assertThat(vc).isNull();
}

Example 15 with SpelExpression

use of org.springframework.expression.spel.standard.SpelExpression in project spring-framework by spring-projects.

the class SpelCompilationCoverageTests method compiledExpressionShouldWorkWhenUsingCustomFunctionWithVarargs.

@Test
public void compiledExpressionShouldWorkWhenUsingCustomFunctionWithVarargs() throws Exception {
    StandardEvaluationContext context = null;
    // Here the target method takes Object... and we are passing a string
    expression = parser.parseExpression("#doFormat('hey %s', 'there')");
    context = new StandardEvaluationContext();
    context.registerFunction("doFormat", DelegatingStringFormat.class.getDeclaredMethod("format", String.class, Object[].class));
    ((SpelExpression) expression).setEvaluationContext(context);
    assertThat(expression.getValue(String.class)).isEqualTo("hey there");
    assertThat(((SpelNodeImpl) ((SpelExpression) expression).getAST()).isCompilable()).isTrue();
    assertCanCompile(expression);
    assertThat(expression.getValue(String.class)).isEqualTo("hey there");
    expression = parser.parseExpression("#doFormat([0], 'there')");
    context = new StandardEvaluationContext(new Object[] { "hey %s" });
    context.registerFunction("doFormat", DelegatingStringFormat.class.getDeclaredMethod("format", String.class, Object[].class));
    ((SpelExpression) expression).setEvaluationContext(context);
    assertThat(expression.getValue(String.class)).isEqualTo("hey there");
    assertThat(((SpelNodeImpl) ((SpelExpression) expression).getAST()).isCompilable()).isTrue();
    assertCanCompile(expression);
    assertThat(expression.getValue(String.class)).isEqualTo("hey there");
    expression = parser.parseExpression("#doFormat([0], #arg)");
    context = new StandardEvaluationContext(new Object[] { "hey %s" });
    context.registerFunction("doFormat", DelegatingStringFormat.class.getDeclaredMethod("format", String.class, Object[].class));
    context.setVariable("arg", "there");
    ((SpelExpression) expression).setEvaluationContext(context);
    assertThat(expression.getValue(String.class)).isEqualTo("hey there");
    assertThat(((SpelNodeImpl) ((SpelExpression) expression).getAST()).isCompilable()).isTrue();
    assertCanCompile(expression);
    assertThat(expression.getValue(String.class)).isEqualTo("hey there");
}