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MathOperations.java
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MathOperations.java
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/**
* 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.jtwig.util;
public class MathOperations {
public static Object sum (Object a, Object b) {
if (areDouble(a, b)) return toDouble(a) + toDouble(b);
else return toInt(a) + toInt(b);
}
public static Object sub (Object a, Object b) {
if (areDouble(a, b)) return toDouble(a) - toDouble(b);
else return toInt(a) - toInt(b);
}
public static Object mod (Object a, Object b) {
return toInt(a) % toInt(b);
}
public static Object mul (Object a, Object b) {
return toDouble(a) * toDouble(b);
}
public static Object intMul (Object a, Object b) {
return toInt(a) * toInt(b);
}
public static Object div (Object a, Object b) {
return toDouble(a) / toDouble(b);
}
public static Object intDiv (Object a, Object b) {
return toInt(a) / toInt(b);
}
public static double toDouble (Object obj) {
if (obj == null) return 0;
return ((Number) obj).doubleValue();
}
public static int toInt (Object obj) {
if (obj == null) return 0;
return ((Number) obj) .intValue();
}
public static boolean areDouble(Object... list) {
if (list == null || list.length == 0)
return false;
for (Object obj : list)
if (!(obj instanceof Double))
return false;
return true;
}
}