Examples with SpelEvaluationException org.springframework.expression.spel.SpelEvaluationException used on opensource projects

Example 31 with SpelEvaluationException

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

the class OperatorInstanceof method getValueInternal.

/**
 * Compare the left operand to see it is an instance of the type specified as the
 * right operand. The right operand must be a class.
 * @param state the expression state
 * @return {@code true} if the left operand is an instanceof of the right operand,
 * otherwise {@code false}
 * @throws EvaluationException if there is a problem evaluating the expression
 */
@Override
public BooleanTypedValue getValueInternal(ExpressionState state) throws EvaluationException {
    SpelNodeImpl rightOperand = getRightOperand();
    TypedValue left = getLeftOperand().getValueInternal(state);
    TypedValue right = rightOperand.getValueInternal(state);
    Object leftValue = left.getValue();
    Object rightValue = right.getValue();
    BooleanTypedValue result;
    if (!(rightValue instanceof Class)) {
        throw new SpelEvaluationException(getRightOperand().getStartPosition(), SpelMessage.INSTANCEOF_OPERATOR_NEEDS_CLASS_OPERAND, (rightValue == null ? "null" : rightValue.getClass().getName()));
    }
    Class<?> rightClass = (Class<?>) rightValue;
    if (leftValue == null) {
        // null is not an instanceof anything
        result = BooleanTypedValue.FALSE;
    } else {
        result = BooleanTypedValue.forValue(rightClass.isAssignableFrom(leftValue.getClass()));
    }
    this.type = rightClass;
    if (rightOperand instanceof TypeReference) {
        // Can only generate bytecode where the right operand is a direct type reference,
        // not if it is indirect (for example when right operand is a variable reference)
        this.exitTypeDescriptor = "Z";
    }
    return result;
}

Example 32 with SpelEvaluationException

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

the class SpelExpression method getValue.

@Override
@Nullable
public Object getValue() throws EvaluationException {
    CompiledExpression compiledAst = this.compiledAst;
    if (compiledAst != null) {
        try {
            EvaluationContext context = getEvaluationContext();
            return compiledAst.getValue(context.getRootObject().getValue(), context);
        } 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);
    Object result = this.ast.getValue(expressionState);
    checkCompile(expressionState);
    return result;
}

Example 33 with SpelEvaluationException

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

the class SpelExpression method getValue.

@Override
@Nullable
public Object getValue(EvaluationContext context, @Nullable Object rootObject) throws EvaluationException {
    Assert.notNull(context, "EvaluationContext is required");
    CompiledExpression compiledAst = this.compiledAst;
    if (compiledAst != null) {
        try {
            return compiledAst.getValue(rootObject, context);
        } 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);
    Object result = this.ast.getValue(expressionState);
    checkCompile(expressionState);
    return result;
}

Example 34 with SpelEvaluationException

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

the class SpelExpression method getValue.

@SuppressWarnings("unchecked")
@Override
@Nullable
public <T> T getValue(EvaluationContext context, @Nullable Class<T> expectedResultType) throws EvaluationException {
    Assert.notNull(context, "EvaluationContext is required");
    CompiledExpression compiledAst = this.compiledAst;
    if (compiledAst != null) {
        try {
            Object result = compiledAst.getValue(context.getRootObject().getValue(), 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, this.configuration);
    TypedValue typedResultValue = this.ast.getTypedValue(expressionState);
    checkCompile(expressionState);
    return ExpressionUtils.convertTypedValue(context, typedResultValue, expectedResultType);
}