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AMPS Java client by 60East Technologies, Inc.
The newest version!
////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2010-2024 60East Technologies Inc., All Rights Reserved.
//
// This computer software is owned by 60East Technologies Inc. and is
// protected by U.S. copyright laws and other laws and by international
// treaties. This computer software is furnished by 60East Technologies
// Inc. pursuant to a written license agreement and may be used, copied,
// transmitted, and stored only in accordance with the terms of such
// license agreement and with the inclusion of the above copyright notice.
// This computer software or any other copies thereof may not be provided
// or otherwise made available to any other person.
//
// U.S. Government Restricted Rights. This computer software: (a) was
// developed at private expense and is in all respects the proprietary
// information of 60East Technologies Inc.; (b) was not developed with
// government funds; (c) is a trade secret of 60East Technologies Inc.
// for all purposes of the Freedom of Information Act; and (d) is a
// commercial item and thus, pursuant to Section 12.212 of the Federal
// Acquisition Regulations (FAR) and DFAR Supplement Section 227.7202,
// Government's use, duplication or disclosure of the computer software
// is subject to the restrictions set forth by 60East Technologies Inc..
//
////////////////////////////////////////////////////////////////////////////
package com.crankuptheamps.client;
import com.crankuptheamps.client.exception.CommandException;
import java.lang.Character;
import java.lang.Comparable;
/**
* A representation of an AMPS version that can be compared.
*/
public class VersionInfo implements Comparable
{
private String _versionString;
private long _versionNum = 0;
private long DEFAULT_VERSION_NUM = 9900990009900099L;
private static int MAXVALUES = 4;
private static int[] MAXDIGITS = new int[] { 4, 4, 5, 5 };
public VersionInfo()
{
_versionString = "default";
}
public VersionInfo(String version_)
{
if (version_ == null || version_.isEmpty())
_versionString = "default";
else
_versionString = version_;
}
public String getVersionString()
{
return _versionString;
}
public void setVersionString(String version_)
{
if (version_ == null || version_.isEmpty())
_versionString = "default";
else
_versionString = version_;
_versionNum = 0;
}
public long getVersion()
{
if (_versionNum == 0)
parseVersion();
return _versionNum;
}
public int getOldStyleVersion()
{
int version;
try
{
version = Client.getVersionAsInt(_versionString);
}
catch (CommandException e)
{
version = 0;
}
if (version == 0)
version = Message.MINIMUM_SERVER_VERSION;
return version;
}
public int compareTo(VersionInfo other)
{
if (getVersion() < other.getVersion())
{
return -1;
}
else if (_versionNum > other._versionNum)
{
return 1;
}
else
{
return 0;
}
}
public boolean equals(Object obj)
{
if (obj == null || !(obj instanceof VersionInfo))
return false;
VersionInfo other = (VersionInfo)obj;
return getVersion() == other.getVersion();
}
public int hashCode()
{
return Long.valueOf(getVersion()).hashCode();
}
private void parseVersion()
{
if (!Character.isDigit(_versionString.charAt(0)))
{
_versionNum = DEFAULT_VERSION_NUM;
return;
}
int digits = 0;
int values = 0;
long current = 0;
char c;
for (int i=0; i<_versionString.length(); ++i)
{
c = _versionString.charAt(i);
if (Character.isDigit(c))
{
// If we exceed allowed digits, return default
if (++digits > MAXDIGITS[values])
{
_versionNum = DEFAULT_VERSION_NUM;
return;
}
current *= (long)10;
current += (long)(c - '0');
}
else
{
if (c == '.')
{
// Value complete, add current to _versionNum
_versionNum += current;
// Is that all the values?
if (++values >= MAXVALUES)
return;
// Make room for more
for (int j=0; j