/*license*\
XBN-Java: Copyright (C) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com)
This software is dual-licensed under the:
- Lesser General Public License (LGPL) version 3.0 or, at your option, any later version;
- Apache Software License (ASL) version 2.0.
Either license may be applied at your discretion. More information may be found at
- http://en.wikipedia.org/wiki/Multi-licensing.
The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at:
- LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
- ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt
\*license*/
package com.github.xbn.util;
import com.github.xbn.lang.CrashIfObject;
import java.util.Objects;
import java.util.Comparator;
import com.github.xbn.lang.IllegalArgumentStateException;
/**
<p>If a set of comparable objects are not ascending, crash.</p>
* @since 0.1.0
* @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a>
**/
public class ComparatorUtil {
private ComparatorUtil() {
throw new IllegalStateException("Do not instantiate");
}
@SuppressWarnings({"unchecked", "varargs"})
public static final <O> void ciNotAscending(Comparator<O> cmp_rtr, boolean ignored, O... objects) {
ciNotAscending(cmp_rtr, objects);
}
public static final <O> void ciNotAscending(Comparator<O> cmp_rtr, O[] objects) {
int iLen = -1;
try {
iLen = objects.length;
} catch(NullPointerException npx) {
throw new NullPointerException("objects");
}
for(int i = 0; i < (iLen - 1); i++) {
try {
if(cmp_rtr.compare(objects[i], objects[i+1]) > 0) {
throw new IllegalArgumentStateException("objects[" + i + "] and objects[" + (i + 1) + "] are not in ascending order. -- objects[" + i + "]=<" + objects[i] + ">, objects[" + (i + 1) + "]=<" + " + objects[i+1] + " + ">");
}
} catch(RuntimeException rx) {
Objects.requireNonNull(cmp_rtr, "cmp_rtr");
Objects.requireNonNull(objects[i], "objects[" + i + "]");
String sXi = "Attempting cmp_rtr.compare(objects[" + i + "], objects[" + (i+1) + "]). -- objects[" + i + "]=<" + objects[i] + "> and objects[" + (i + 1) + "]=<" + " + objects[i+1] + " + ">, cmp_rtr=[" + cmp_rtr + "]";
throw CrashIfObject.nullOrReturnCause(objects[i+1], "objects[" + (i+1) + "]", sXi, rx);
}
}
}
}