/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.

 */

package com.oracle.solaris.vp.util.misc;

import java.util.Arrays;

public class ObjectUtil {

    public static <T> int compare(Comparable<T> o1, T o2) {

	if (o1 == null) {

	    return o2 == null ? 0 : -1;

	}

	if (o2 == null) {

	    return 1;

	}

	return o1.compareTo(o2);

    }

    public static boolean equals(Object o1, Object o2) {

	if (o1 == null) {

	    return o2 == null;

	}

	if (o2 != null && o1.getClass().isArray() && o2.getClass().isArray()) {

	    try {

		return Arrays.deepEquals((Object[])o1, (Object[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((boolean[])o1, (boolean[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((byte[])o1, (byte[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((char[])o1, (char[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((double[])o1, (double[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((float[])o1, (float[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((int[])o1, (int[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((long[])o1, (long[])o2);

	    } catch (ClassCastException ignore) {

	    }

	    try {

		return Arrays.equals((short[])o1, (short[])o2);

	    } catch (ClassCastException ignore) {

	    }

	}

	return o1.equals(o2);

    }

}