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package org.glassfish.admin.amx.util;

/**
Provides a variety of useful utilities for comparing objects.
 */
public final class CompareUtil
{
    private CompareUtil()
    {
        // disallow instantiation
    }

    public static boolean objectsEqual(Object o1, Object o2)
    {
        boolean equal = o1 == o2;

        if (!equal)
        {
            if (o1 == null)
            {
                // o1 is null, but o2 is not
                equal = false;
            }
            else
            {
                equal = o1.equals(o2);
                if (!equal)
                {
                    if (ClassUtil.objectIsArray(o1))
                    {
                        equal = ArrayUtil.arraysEqual(o1, o2);
                    }
                }
            }
        }

        return (equal);
    }

}