1 /*

     2  * CDDL HEADER START

     3  *

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

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

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

     7  *

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

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

    10  * See the License for the specific language governing permissions

    11  * and limitations under the License.

    12  *

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

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

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

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

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

    18  *

    19  * CDDL HEADER END

    20  */

    21 

    22 /*

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

    24  */

    25 

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

    27 

    28 import java.util.Arrays;

    29 

    30 public class ObjectUtil {

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

    32 	if (o1 == null) {

    33 	    return o2 == null ? 0 : -1;

    34 	}

    35 

    36 	if (o2 == null) {

    37 	    return 1;

    38 	}

    39 

    40 	return o1.compareTo(o2);

    41     }

    42 

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

    44 	if (o1 == null) {

    45 	    return o2 == null;

    46 	}

    47 

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

    49 	    try {

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

    51 	    } catch (ClassCastException ignore) {

    52 	    }

    53 

    54 	    try {

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

    56 	    } catch (ClassCastException ignore) {

    57 	    }

    58 

    59 	    try {

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

    61 	    } catch (ClassCastException ignore) {

    62 	    }

    63 

    64 	    try {

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

    66 	    } catch (ClassCastException ignore) {

    67 	    }

    68 

    69 	    try {

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

    71 	    } catch (ClassCastException ignore) {

    72 	    }

    73 

    74 	    try {

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

    76 	    } catch (ClassCastException ignore) {

    77 	    }

    78 

    79 	    try {

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

    81 	    } catch (ClassCastException ignore) {

    82 	    }

    83 

    84 	    try {

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

    86 	    } catch (ClassCastException ignore) {

    87 	    }

    88 

    89 	    try {

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

    91 	    } catch (ClassCastException ignore) {

    92 	    }

    93 	}

    94 

    95 	return o1.equals(o2);

    96     }

    97 }