/*
* Copyright 2002-2009 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.expression.spel.ast;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.expression.EvaluationException;
import org.springframework.expression.Operation;
import org.springframework.expression.TypedValue;
import org.springframework.expression.spel.ExpressionState;
/**
* Implements division operator.
*
* @author Andy Clement
* @since 3.0
*/
public class OpDivide extends Operator {
public OpDivide(int pos, SpelNodeImpl... operands) {
super("/", pos, operands);
}
@Override
public TypedValue getValueInternal(ExpressionState state) throws EvaluationException {
Object operandOne = getLeftOperand().getValueInternal(state).getValue();
Object operandTwo = getRightOperand().getValueInternal(state).getValue();
if (operandOne instanceof Number && operandTwo instanceof Number) {
Number op1 = (Number) operandOne;
Number op2 = (Number) operandTwo;
if (op1 instanceof Double || op2 instanceof Double) {
return new TypedValue(op1.doubleValue() / op2.doubleValue());
} else if (op1 instanceof Long || op2 instanceof Long) {
return new TypedValue(op1.longValue() / op2.longValue());
} else { // TODO what about non-int result of the division?
return new TypedValue(op1.intValue() / op2.intValue());
}
}
Object result = state.operate(Operation.DIVIDE, operandOne, operandTwo);
return new TypedValue(result,TypeDescriptor.forObject(result));
}
}
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