jreversion.java

cisco－2950交换机的应用程序的源代码

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   JreVersion.java

package cisco.dsbu.cms.boot.internal.util;


// Referenced classes of package cisco.dsbu.cms.boot.internal.util:
//            NumericAlphaVersion

public class JreVersion
    implements Comparable
{

    private String version;
    private int major;
    private int minor;
    private NumericAlphaVersion micro;
    private NumericAlphaVersion patch;

    public JreVersion(String s)
    {
        version = s;
        try
        {
            extract();
        }
        catch(Exception exception)
        {
            throw new IllegalArgumentException("Unsupported JRE version format: " + s + "; " + exception);
        }
    }

    public int compareTo(Object obj)
    {
        JreVersion jreversion = (JreVersion)obj;
        if(major != jreversion.major)
            return major >= jreversion.major ? 1 : -1;
        if(minor != jreversion.minor)
            return minor >= jreversion.minor ? 1 : -1;
        int i = micro.compareTo(jreversion.micro);
        if(i != 0)
            return i;
        i = patch.compareTo(jreversion.patch);
        if(i != 0)
            return i;
        else
            return 0;
    }

    public boolean equals(Object obj)
    {
        boolean flag;
        try
        {
            flag = compareTo(obj) == 0;
        }
        catch(Exception exception)
        {
            flag = false;
        }
        return flag;
    }

    public int hashCode()
    {
        return version.hashCode();
    }

    public String toString()
    {
        return version;
    }

    private void extract()
    {
        major = 0;
        minor = 0;
        micro = new NumericAlphaVersion("");
        patch = new NumericAlphaVersion("");
        int i = 0;
        int j = 0;
        j = version.indexOf(46, i);
        major = Integer.parseInt(version.substring(i, j));
        i = j + 1;
        j = version.indexOf(46, i);
        if(j < 0)
        {
            minor = Integer.parseInt(version.substring(i));
            return;
        }
        minor = Integer.parseInt(version.substring(i, j));
        i = j + 1;
        j = version.indexOf(95, i);
        if(j < 0)
        {
            micro = new NumericAlphaVersion(version.substring(i));
            return;
        } else
        {
            micro = new NumericAlphaVersion(version.substring(i, j));
            i = j + 1;
            patch = new NumericAlphaVersion(version.substring(i));
            return;
        }
    }
}