com.mchange.v2.management.ManagementUtils Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java 0.2.6.3
*
* Copyright (C) 2013 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of EITHER:
*
* 1) The GNU Lesser General Public License (LGPL), version 2.1, as
* published by the Free Software Foundation
*
* OR
*
* 2) The Eclipse Public License (EPL), version 1.0
*
* You may choose which license to accept if you wish to redistribute
* or modify this work. You may offer derivatives of this work
* under the license you have chosen, or you may provide the same
* choice of license which you have been offered here.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received copies of both LGPL v2.1 and EPL v1.0
* along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
* If not, the text of these licenses are currently available at
*
* LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php
*
*/
package com.mchange.v2.management;
import javax.management.*;
import java.util.Comparator;
public class ManagementUtils
{
public final static Comparator PARAM_INFO_COMPARATOR = new Comparator()
{
public int compare(Object a, Object b)
{
MBeanParameterInfo aa = (MBeanParameterInfo) a;
MBeanParameterInfo bb = (MBeanParameterInfo) b;
int out = aa.getType().compareTo(bb.getType());
if (out == 0)
{
out = aa.getName().compareTo(bb.getName());
if (out == 0)
{
String aDesc = aa.getDescription();
String bDesc = bb.getDescription();
if (aDesc == null && bDesc == null)
out = 0;
else if (aDesc == null)
out = -1;
else if (bDesc == null)
out = 1;
else
out = aDesc.compareTo(bDesc);
}
}
return out;
}
};
public final static Comparator OP_INFO_COMPARATOR = new Comparator()
{
public int compare(Object a, Object b)
{
MBeanOperationInfo aa = (MBeanOperationInfo) a;
MBeanOperationInfo bb = (MBeanOperationInfo) b;
String aName = aa.getName();
String bName = bb.getName();
int out = String.CASE_INSENSITIVE_ORDER.compare(aName, bName);
if (out == 0)
{
if (aName.equals(bName))
{
MBeanParameterInfo[] aParams = aa.getSignature();
MBeanParameterInfo[] bParams = bb.getSignature();
if (aParams.length < bParams.length)
out = -1;
else if (aParams.length > bParams.length)
out = 1;
else
{
for (int i = 0, len = aParams.length; i < len; ++i)
{
out = PARAM_INFO_COMPARATOR.compare(aParams[i], bParams[i]);
if (out != 0)
break;
}
}
}
else
{
out = aName.compareTo(bName);
}
}
return out;
}
};
}