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    1   package org.apache.bcel.verifier;
    2
    3   /* ====================================================================
    4    * The Apache Software License, Version 1.1
    5    *
    6    * Copyright (c) 2001 The Apache Software Foundation.  All rights
    7    * reserved.
    8    *
    9    * Redistribution and use in source and binary forms, with or without
    10   * modification, are permitted provided that the following conditions
    11   * are met:
    12   *
    13   * 1. Redistributions of source code must retain the above copyright
    14   *    notice, this list of conditions and the following disclaimer.
    15   *
    16   * 2. Redistributions in binary form must reproduce the above copyright
    17   *    notice, this list of conditions and the following disclaimer in
    18   *    the documentation and/or other materials provided with the
    19   *    distribution.
    20   *
    21   * 3. The end-user documentation included with the redistribution,
    22   *    if any, must include the following acknowledgment:
    23   *       "This product includes software developed by the
    24   *        Apache Software Foundation (http://www.apache.org/)."
    25   *    Alternately, this acknowledgment may appear in the software itself,
    26   *    if and wherever such third-party acknowledgments normally appear.
    27   *
    28   * 4. The names "Apache" and "Apache Software Foundation" and
    29   *    "Apache BCEL" must not be used to endorse or promote products
    30   *    derived from this software without prior written permission. For
    31   *    written permission, please contact apache@apache.org.
    32   *
    33   * 5. Products derived from this software may not be called "Apache",
    34   *    "Apache BCEL", nor may "Apache" appear in their name, without
    35   *    prior written permission of the Apache Software Foundation.
    36   *
    37   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    38   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    39   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    40   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
    41   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    42   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    43   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    44   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    45   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    46   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    47   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    48   * SUCH DAMAGE.
    49   * ====================================================================
    50   *
    51   * This software consists of voluntary contributions made by many
    52   * individuals on behalf of the Apache Software Foundation.  For more
    53   * information on the Apache Software Foundation, please see
    54   * <http://www.apache.org/>;.
    55   */
    56
    57  /***
    58   * A VerificationResult is what a PassVerifier returns
    59   * after verifying.
    60   *
    61   * @version $Id: VerificationResult.java,v 1.2 2002/06/13 09:32:50 enver Exp $
    62   * @author <A HREF="http://www.inf.fu-berlin.de/~ehaase"/>Enver Haase</A>
    63   *
    64   */
    65  public class VerificationResult{
    66
    67  	/***
    68  	 * Constant to indicate verification has not been tried yet.
    69  	 * This happens if some earlier verification pass did not return VERIFIED_OK.
    70  	 */
    71  	public static final int VERIFIED_NOTYET = 0;
    72  	/*** Constant to indicate verification was passed. */
    73  	public static final int VERIFIED_OK = 1;
    74  	/*** Constant to indicate verfication failed. */
    75  	public static final int VERIFIED_REJECTED = 2;
    76
    77  	/***
    78  	 * This string is the canonical message for verifications that have not been tried yet.
    79  	 * This happens if some earlier verification pass did not return VERIFIED_OK.
    80  	 */
    81  	private static final String VERIFIED_NOTYET_MSG = "Not yet verified.";
    82  	/*** This string is the canonical message for passed verification passes. */
    83  	private static final String VERIFIED_OK_MSG = "Passed verification.";
    84
    85  	/***
    86  	 * Canonical VerificationResult for not-yet-tried verifications.
    87  	 * This happens if some earlier verification pass did not return VERIFIED_OK.
    88  	 */
    89  	public static final VerificationResult VR_NOTYET = new VerificationResult(VERIFIED_NOTYET, VERIFIED_NOTYET_MSG);
    90  	/*** Canonical VerificationResult for passed verifications. */
    91  	public static final VerificationResult VR_OK = new VerificationResult(VERIFIED_OK, VERIFIED_OK_MSG);
    92
    93  	/*** The numeric status. */
    94  	private int numeric;
    95
    96  	/*** The detailed message. */
    97  	private String detailMessage;
    98
    99  	/*** The usual constructor. */
    100 	public VerificationResult(int status, String message){
    101 		numeric = status;
    102 		detailMessage = message;
    103 	}
    104
    105 	/*** Returns one one the VERIFIED_OK, VERIFIED_NOTYET, VERIFIED_REJECTED constants. */
    106 	public int getStatus(){
    107 		return numeric;
    108 	}
    109
    110 	/*** Returns a detailed message. */
    111 	public String getMessage(){
    112 		return detailMessage;
    113 	}
    114
    115 	/***
    116 	 * Returns if two VerificationResult instances are equal.
    117 	 */
    118 	public boolean equals(Object o){
    119 		if (! (o instanceof VerificationResult)) return false;
    120 		VerificationResult other = (VerificationResult) o;
    121 		return ((other.numeric == this.numeric) && (other.detailMessage.equals(this.detailMessage)));
    122 	}
    123
    124 	/***
    125 	 * Returns a String representation of the VerificationResult.
    126 	 */
    127 	public String toString(){
    128 		String ret="";
    129 		if (numeric == VERIFIED_NOTYET)   ret = "VERIFIED_NOTYET";
    130 		if (numeric == VERIFIED_OK)       ret = "VERIFIED_OK";
    131 		if (numeric == VERIFIED_REJECTED) ret = "VERIFIED_REJECTED";
    132 		ret+="\n"+detailMessage+"\n";
    133 		return ret;
    134 	}
    135 }

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