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    1   /*
    2    * Copyright  2000-2004 The Apache Software Foundation
    3    *
    4    *  Licensed under the Apache License, Version 2.0 (the "License");
    5    *  you may not use this file except in compliance with the License.
    6    *  You may obtain a copy of the License at
    7    *
    8    *      http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   *  Unless required by applicable law or agreed to in writing, software
    11   *  distributed under the License is distributed on an "AS IS" BASIS,
    12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   *  See the License for the specific language governing permissions and
    14   *  limitations under the License.
    15   *
    16   */
    17  package org.apache.bcel.verifier;
    18
    19  /***
    20   * A VerificationResult is what a PassVerifier returns
    21   * after verifying.
    22   *
    23   * @version $Id: VerificationResult.java 386056 2006-03-15 11:31:56Z tcurdt $
    24   * @author Enver Haase
    25   *
    26   */
    27  public class VerificationResult {
    28
    29      /***
    30       * Constant to indicate verification has not been tried yet.
    31       * This happens if some earlier verification pass did not return VERIFIED_OK.
    32       */
    33      public static final int VERIFIED_NOTYET = 0;
    34      /*** Constant to indicate verification was passed. */
    35      public static final int VERIFIED_OK = 1;
    36      /*** Constant to indicate verfication failed. */
    37      public static final int VERIFIED_REJECTED = 2;
    38      /***
    39       * This string is the canonical message for verifications that have not been tried yet.
    40       * This happens if some earlier verification pass did not return VERIFIED_OK.
    41       */
    42      private static final String VERIFIED_NOTYET_MSG = "Not yet verified.";
    43      /*** This string is the canonical message for passed verification passes. */
    44      private static final String VERIFIED_OK_MSG = "Passed verification.";
    45      /***
    46       * Canonical VerificationResult for not-yet-tried verifications.
    47       * This happens if some earlier verification pass did not return VERIFIED_OK.
    48       */
    49      public static final VerificationResult VR_NOTYET = new VerificationResult(VERIFIED_NOTYET,
    50              VERIFIED_NOTYET_MSG);
    51      /*** Canonical VerificationResult for passed verifications. */
    52      public static final VerificationResult VR_OK = new VerificationResult(VERIFIED_OK,
    53              VERIFIED_OK_MSG);
    54      /*** The numeric status. */
    55      private int numeric;
    56      /*** The detailed message. */
    57      private String detailMessage;
    58
    59
    60      /*** The usual constructor. */
    61      public VerificationResult(int status, String message) {
    62          numeric = status;
    63          detailMessage = message;
    64      }
    65
    66
    67      /*** Returns one one the VERIFIED_OK, VERIFIED_NOTYET, VERIFIED_REJECTED constants. */
    68      public int getStatus() {
    69          return numeric;
    70      }
    71
    72
    73      /*** Returns a detailed message. */
    74      public String getMessage() {
    75          return detailMessage;
    76      }
    77
    78
    79      /*** @return a hash code value for the object.
    80       */
    81      public int hashCode() {
    82          return numeric ^ detailMessage.hashCode();
    83      }
    84
    85
    86      /***
    87       * Returns if two VerificationResult instances are equal.
    88       */
    89      public boolean equals( Object o ) {
    90          if (!(o instanceof VerificationResult)) {
    91              return false;
    92          }
    93          VerificationResult other = (VerificationResult) o;
    94          return ((other.numeric == this.numeric) && (other.detailMessage.equals(this.detailMessage)));
    95      }
    96
    97
    98      /***
    99       * Returns a String representation of the VerificationResult.
    100      */
    101     public String toString() {
    102         String ret = "";
    103         if (numeric == VERIFIED_NOTYET) {
    104             ret = "VERIFIED_NOTYET";
    105         }
    106         if (numeric == VERIFIED_OK) {
    107             ret = "VERIFIED_OK";
    108         }
    109         if (numeric == VERIFIED_REJECTED) {
    110             ret = "VERIFIED_REJECTED";
    111         }
    112         ret += "\n" + detailMessage + "\n";
    113         return ret;
    114     }
    115 }