Coverage Report - org.owasp.dependencycheck.utils.DependencyVersion
 
Classes in this File Line Coverage Branch Coverage Complexity
DependencyVersion
91%
82/90
76%
49/64
5.273
 
 1   
 /*
 2   
  * This file is part of dependency-check-core.
 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   
  * Copyright (c) 2013 Jeremy Long. All Rights Reserved.
 17   
  */
 18   
 package org.owasp.dependencycheck.utils;
 19   
 
 20   
 import java.util.ArrayList;
 21   
 import java.util.Iterator;
 22   
 import java.util.List;
 23   
 import java.util.regex.Matcher;
 24   
 import java.util.regex.Pattern;
 25   
 import org.apache.commons.lang3.StringUtils;
 26   
 
 27   
 /**
 28   
  * <p>
 29   
  * Simple object to track the parts of a version number. The parts are contained in a List such that version 1.2.3 will
 30   
  * be stored as:  <code>versionParts[0] = 1;
 31   
  * versionParts[1] = 2;
 32   
  * versionParts[2] = 3;
 33   
  * </code></p>
 34   
  * <p>
 35   
  * Note, the parser contained in this class expects the version numbers to be separated by periods. If a different
 36   
  * separator is used the parser will likely fail.</p>
 37   
  *
 38   
  * @author Jeremy Long
 39   
  */
 40  28 
 public class DependencyVersion implements Iterable<String>, Comparable<DependencyVersion> {
 41   
 
 42   
     /**
 43   
      * Constructor for a empty DependencyVersion.
 44   
      */
 45  8 
     public DependencyVersion() {
 46  8 
     }
 47   
 
 48   
     /**
 49   
      * Constructor for a DependencyVersion that will parse a version string.
 50   
      * <b>Note</b>, this should only be used when the version passed in is already known to be a well formatted version
 51   
      * number. Otherwise, DependencyVersionUtil.parseVersion() should be used instead.
 52   
      *
 53   
      * @param version the well formatted version number to parse
 54   
      */
 55  2076 
     public DependencyVersion(String version) {
 56  2076 
         parseVersion(version);
 57  2076 
     }
 58   
 
 59   
     /**
 60   
      * Parses a version string into its sub parts: major, minor, revision, build, etc. <b>Note</b>, this should only be
 61   
      * used to parse something that is already known to be a version number.
 62   
      *
 63   
      * @param version the version string to parse
 64   
      */
 65   
     public final void parseVersion(String version) {
 66  2080 
         versionParts = new ArrayList<String>();
 67  2080 
         if (version != null) {
 68  2080 
             final Pattern rx = Pattern.compile("(\\d+[a-z]{1,3}$|[a-z]+\\d+|\\d+|(release|beta|alpha)$)");
 69  2080 
             final Matcher matcher = rx.matcher(version.toLowerCase());
 70  8650 
             while (matcher.find()) {
 71  6570 
                 versionParts.add(matcher.group());
 72   
             }
 73  2080 
             if (versionParts.isEmpty()) {
 74  12 
                 versionParts.add(version);
 75   
             }
 76   
         }
 77  2080 
     }
 78   
     /**
 79   
      * A list of the version parts.
 80   
      */
 81   
     private List<String> versionParts;
 82   
 
 83   
     /**
 84   
      * Get the value of versionParts.
 85   
      *
 86   
      * @return the value of versionParts
 87   
      */
 88   
     public List<String> getVersionParts() {
 89  3630 
         return versionParts;
 90   
     }
 91   
 
 92   
     /**
 93   
      * Set the value of versionParts.
 94   
      *
 95   
      * @param versionParts new value of versionParts
 96   
      */
 97   
     public void setVersionParts(List<String> versionParts) {
 98  6 
         this.versionParts = versionParts;
 99  6 
     }
 100   
 
 101   
     /**
 102   
      * Retrieves an iterator for the version parts.
 103   
      *
 104   
      * @return an iterator for the version parts
 105   
      */
 106   
     @Override
 107   
     public Iterator<String> iterator() {
 108  2 
         return versionParts.iterator();
 109   
     }
 110   
 
 111   
     /**
 112   
      * Reconstructs the version string from the split version parts.
 113   
      *
 114   
      * @return a string representing the version.
 115   
      */
 116   
     @Override
 117   
     public String toString() {
 118  636 
         return StringUtils.join(versionParts, '.');
 119   
     }
 120   
 
 121   
     /**
 122   
      * Compares the equality of this object to the one passed in as a parameter.
 123   
      *
 124   
      * @param obj the object to compare equality
 125   
      * @return returns true only if the two objects are equal, otherwise false
 126   
      */
 127   
     @Override
 128   
     public boolean equals(Object obj) {
 129  1332 
         if (obj == null) {
 130  0 
             return false;
 131   
         }
 132  1332 
         if (getClass() != obj.getClass()) {
 133  0 
             return false;
 134   
         }
 135  1332 
         final DependencyVersion other = (DependencyVersion) obj;
 136  1332 
         final int max = (this.versionParts.size() < other.versionParts.size())
 137  254 
                 ? this.versionParts.size() : other.versionParts.size();
 138   
         //TODO steal better version of code from compareTo
 139  2900 
         for (int i = 0; i < max; i++) {
 140  2666 
             final String thisPart = this.versionParts.get(i);
 141  2666 
             final String otherPart = other.versionParts.get(i);
 142  2666 
             if (!thisPart.equals(otherPart)) {
 143  1098 
                 return false;
 144   
             }
 145   
         }
 146  234 
         if (this.versionParts.size() > max) {
 147  0 
             for (int i = max; i < this.versionParts.size(); i++) {
 148  0 
                 if (!"0".equals(this.versionParts.get(i))) {
 149  0 
                     return false;
 150   
                 }
 151   
             }
 152   
         }
 153   
 
 154  234 
         if (other.versionParts.size() > max) {
 155  186 
             for (int i = max; i < other.versionParts.size(); i++) {
 156  186 
                 if (!"0".equals(other.versionParts.get(i))) {
 157  186 
                     return false;
 158   
                 }
 159   
             }
 160   
         }
 161   
 
 162   
         /*
 163   
          *  if (this.versionParts != other.versionParts && (this.versionParts == null || !this.versionParts.equals(other.versionParts))) {
 164   
          *      return false;
 165   
          *  }
 166   
          */
 167  48 
         return true;
 168   
     }
 169   
 
 170   
     /**
 171   
      * Calculates the hashCode for this object.
 172   
      *
 173   
      * @return the hashCode
 174   
      */
 175   
     @Override
 176   
     public int hashCode() {
 177  2 
         int hash = 5;
 178  2 
         hash = 71 * hash + (this.versionParts != null ? this.versionParts.hashCode() : 0);
 179  2 
         return hash;
 180   
     }
 181   
 
 182   
     /**
 183   
      * Determines if the three most major major version parts are identical. For instances, if version 1.2.3.4 was
 184   
      * compared to 1.2.3 this function would return true.
 185   
      *
 186   
      * @param version the version number to compare
 187   
      * @return true if the first three major parts of the version are identical
 188   
      */
 189   
     public boolean matchesAtLeastThreeLevels(DependencyVersion version) {
 190  848 
         if (version == null) {
 191  0 
             return false;
 192   
         }
 193  848 
         if (Math.abs(this.versionParts.size() - version.versionParts.size()) >= 3) {
 194  2 
             return false;
 195   
         }
 196   
 
 197  846 
         final int max = (this.versionParts.size() < version.versionParts.size())
 198  176 
                 ? this.versionParts.size() : version.versionParts.size();
 199   
 
 200  846 
         boolean ret = true;
 201  1744 
         for (int i = 0; i < max; i++) {
 202  1612 
             final String thisVersion = this.versionParts.get(i);
 203  1612 
             final String otherVersion = version.getVersionParts().get(i);
 204  1612 
             if (i >= 3) {
 205  4 
                 if (thisVersion.compareToIgnoreCase(otherVersion) >= 0) {
 206  2 
                     ret = false;
 207  2 
                     break;
 208   
                 }
 209  1608 
             } else if (!thisVersion.equals(otherVersion)) {
 210  712 
                 ret = false;
 211  712 
                 break;
 212   
             }
 213   
         }
 214   
 
 215  846 
         return ret;
 216   
     }
 217   
 
 218   
     @Override
 219   
     public int compareTo(DependencyVersion version) {
 220  64 
         if (version == null) {
 221  0 
             return 1;
 222   
         }
 223  64 
         final List<String> left = this.getVersionParts();
 224  64 
         final List<String> right = version.getVersionParts();
 225  64 
         final int max = left.size() < right.size() ? left.size() : right.size();
 226   
 
 227  164 
         for (int i = 0; i < max; i++) {
 228  140 
             final String lStr = left.get(i);
 229  140 
             final String rStr = right.get(i);
 230  140 
             if (lStr.equals(rStr)) {
 231  100 
                 continue;
 232   
             }
 233   
             try {
 234  40 
                 final int l = Integer.parseInt(lStr);
 235  26 
                 final int r = Integer.parseInt(rStr);
 236  24 
                 if (l < r) {
 237  18 
                     return -1;
 238  6 
                 } else if (l > r) {
 239  6 
                     return 1;
 240   
                 }
 241  16 
             } catch (NumberFormatException ex) {
 242  16 
                 final int comp = left.get(i).compareTo(right.get(i));
 243  16 
                 if (comp < 0) {
 244  12 
                     return -1;
 245  4 
                 } else if (comp > 0) {
 246  4 
                     return 1;
 247   
                 }
 248  0 
             }
 249   
         }
 250  24 
         if (left.size() < right.size()) {
 251  6 
             return -1;
 252  18 
         } else if (left.size() > right.size()) {
 253  6 
             return 1;
 254   
         } else {
 255  12 
             return 0;
 256   
         }
 257   
     }
 258   
 }
Report generated by Cobertura 2.1.1 on 6/16/16 6:46 AM.