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

Example 11 with TypedValue

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

the class CompoundExpression method getValueRef.

@Override
protected ValueRef getValueRef(ExpressionState state) throws EvaluationException {
    SpelNodeImpl[] children = this.children;
    if (getChildCount() == 1) {
        return children[0].getValueRef(state);
    }
    SpelNodeImpl nextNode = children[0];
    try {
        TypedValue result = nextNode.getValueInternal(state);
        int cc = getChildCount();
        for (int i = 1; i < cc - 1; i++) {
            try {
                state.pushActiveContextObject(result);
                nextNode = children[i];
                result = nextNode.getValueInternal(state);
            } finally {
                state.popActiveContextObject();
            }
        }
        try {
            state.pushActiveContextObject(result);
            nextNode = children[cc - 1];
            return nextNode.getValueRef(state);
        } finally {
            state.popActiveContextObject();
        }
    } catch (SpelEvaluationException ex) {
        // Correct the position for the error before re-throwing
        ex.setPosition(nextNode.getStartPosition());
        throw ex;
    }
}

Example 12 with TypedValue

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

the class SpelExpression method getValue.

@SuppressWarnings("unchecked")
@Override
@Nullable
public <T> T getValue(@Nullable Class<T> expectedResultType) throws EvaluationException {
    CompiledExpression compiledAst = this.compiledAst;
    if (compiledAst != null) {
        try {
            EvaluationContext context = getEvaluationContext();
            Object result = compiledAst.getValue(context.getRootObject().getValue(), context);
            if (expectedResultType == null) {
                return (T) result;
            } else {
                return ExpressionUtils.convertTypedValue(getEvaluationContext(), new TypedValue(result), expectedResultType);
            }
        } catch (Throwable ex) {
            // If running in mixed mode, revert to interpreted
            if (this.configuration.getCompilerMode() == SpelCompilerMode.MIXED) {
                this.compiledAst = null;
                this.interpretedCount.set(0);
            } else {
                // Running in SpelCompilerMode.immediate mode - propagate exception to caller
                throw new SpelEvaluationException(ex, SpelMessage.EXCEPTION_RUNNING_COMPILED_EXPRESSION);
            }
        }
    }
    ExpressionState expressionState = new ExpressionState(getEvaluationContext(), this.configuration);
    TypedValue typedResultValue = this.ast.getTypedValue(expressionState);
    checkCompile(expressionState);
    return ExpressionUtils.convertTypedValue(expressionState.getEvaluationContext(), typedResultValue, expectedResultType);
}

Example 13 with TypedValue

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

the class SpelExpression method getValue.

@SuppressWarnings("unchecked")
@Override
@Nullable
public <T> T getValue(EvaluationContext context, @Nullable Object rootObject, @Nullable Class<T> expectedResultType) throws EvaluationException {
    Assert.notNull(context, "EvaluationContext is required");
    CompiledExpression compiledAst = this.compiledAst;
    if (compiledAst != null) {
        try {
            Object result = compiledAst.getValue(rootObject, context);
            if (expectedResultType != null) {
                return ExpressionUtils.convertTypedValue(context, new TypedValue(result), expectedResultType);
            } else {
                return (T) result;
            }
        } catch (Throwable ex) {
            // If running in mixed mode, revert to interpreted
            if (this.configuration.getCompilerMode() == SpelCompilerMode.MIXED) {
                this.compiledAst = null;
                this.interpretedCount.set(0);
            } else {
                // Running in SpelCompilerMode.immediate mode - propagate exception to caller
                throw new SpelEvaluationException(ex, SpelMessage.EXCEPTION_RUNNING_COMPILED_EXPRESSION);
            }
        }
    }
    ExpressionState expressionState = new ExpressionState(context, toTypedValue(rootObject), this.configuration);
    TypedValue typedResultValue = this.ast.getTypedValue(expressionState);
    checkCompile(expressionState);
    return ExpressionUtils.convertTypedValue(context, typedResultValue, expectedResultType);
}

Example 14 with TypedValue

use of cn.taketoday.expression.TypedValue in project today-framework by TAKETODAY.

the class ExpressionStateTests method testRootObjectConstructor.

@Test
public void testRootObjectConstructor() {
    EvaluationContext ctx = getContext();
    // TypedValue root = ctx.getRootObject();
    // supplied should override root on context
    ExpressionState state = new ExpressionState(ctx, new TypedValue("i am a string"));
    TypedValue stateRoot = state.getRootContextObject();
    assertThat(stateRoot.getTypeDescriptor().getType()).isEqualTo(String.class);
    assertThat(stateRoot.getValue()).isEqualTo("i am a string");
}

Example 15 with TypedValue

use of cn.taketoday.expression.TypedValue in project today-framework by TAKETODAY.

the class OpPlusTests method test_binaryPlusWithStringOperands.

@Test
public void test_binaryPlusWithStringOperands() {
    ExpressionState expressionState = new ExpressionState(new StandardEvaluationContext());
    StringLiteral n1 = new StringLiteral("\"foo\"", -1, -1, "\"foo\"");
    StringLiteral n2 = new StringLiteral("\"bar\"", -1, -1, "\"bar\"");
    OpPlus o = new OpPlus(-1, -1, n1, n2);
    TypedValue value = o.getValueInternal(expressionState);
    assertThat(value.getTypeDescriptor().getObjectType()).isEqualTo(String.class);
    assertThat(value.getTypeDescriptor().getType()).isEqualTo(String.class);
    assertThat(value.getValue()).isEqualTo("foobar");
}