/******************************************************************************* | |
* Copyright (c) 2012 The University of York. | |
* All rights reserved. This program and the accompanying materials | |
* are made available under the terms of the Eclipse Public License v1.0 | |
* which accompanies this distribution, and is available at | |
* http://www.eclipse.org/legal/epl-v10.html | |
* | |
* Contributors: | |
* Dimitrios Kolovos - initial API and implementation | |
******************************************************************************/ | |
package org.eclipse.epsilon.eol.execute.operations.contributors; | |
import org.eclipse.epsilon.eol.types.NumberUtil; | |
public class NumberOperationContributor extends OperationContributor { | |
@Override | |
public boolean contributesTo(Object target) { | |
return target instanceof Number; | |
} | |
private Number getNumber() { | |
return (Number) target; | |
} | |
public Number min(Number other) { | |
Number self = (Number) target; | |
if (NumberUtil.lessThan(self, other)) { | |
return self; | |
} | |
else { | |
return other; | |
} | |
} | |
public Number max(Number other) { | |
Number self = (Number) target; | |
if (NumberUtil.greaterThan(self, other)) { | |
return self; | |
} | |
else { | |
return other; | |
} | |
} | |
public int floor() { | |
Number self = (Number) target; | |
return (int) Math.floor(self.doubleValue()); | |
} | |
public Number pow(Number n) { | |
Double pow = Math.pow(((Number) target).doubleValue(), n.doubleValue()); | |
if (target instanceof Integer && n instanceof Integer && NumberUtil.greaterThan(n, 0)) { | |
return pow.intValue(); | |
} | |
else { | |
return pow; | |
} | |
} | |
public int ceiling() { | |
Number self = (Number) target; | |
return (int) Math.ceil(self.doubleValue()); | |
} | |
public int round() { | |
return Math.round(getNumber().floatValue()); | |
} | |
public double ln() { | |
return log(); | |
} | |
public double log() { | |
return Math.log(getNumber().doubleValue()); | |
} | |
public double log10() { | |
return Math.log10(getNumber().doubleValue()); | |
} | |
public Number abs() { | |
if (target instanceof Integer) return Math.abs((Integer) target); | |
if (target instanceof Float) return Math.abs((Float) target); | |
if (target instanceof Double) return Math.abs((Double) target); | |
if (target instanceof Long) return Math.abs((Long) target); | |
return null; | |
} | |
public double asReal() { | |
Number value = (Number) target; | |
return value.floatValue(); | |
} | |
public double asDouble() { | |
Number value = (Number) target; | |
return value.doubleValue(); | |
} | |
public float asFloat() { | |
Number value = (Number) target; | |
return value.floatValue(); | |
} | |
public int asInteger() { | |
Number value = (Number) target; | |
return value.intValue(); | |
} | |
public long asLong() { | |
Number value = (Number) target; | |
return value.longValue(); | |
} | |
} |