#454: Introducing "infinity-like" calculus for dependency range compu…

…tation

src/main/java/org/codehaus/mojo/versions/AbstractVersionsDependencyUpdaterMojo.java

@@ -60,7 +60,7 @@ public abstract class AbstractVersionsDependencyUpdaterMojo
 
     /**
      * A comma separated list of artifact patterns to include. Follows the pattern
-     * "groupId:artifactId:type:classifier:version". Designed to allow specifing the set of includes from the command
+     * "groupId:artifactId:type:classifier:version". Designed to allow specifying the set of includes from the command
      * line. When specifying includes from the pom, use the {@link #includes} configuration instead. If this property is
      * specified then the {@link # include} configuration is ignored.
      *
@@ -71,7 +71,7 @@ public abstract class AbstractVersionsDependencyUpdaterMojo
 
     /**
      * A comma separated list of artifact patterns to exclude. Follows the pattern
-     * "groupId:artifactId:type:classifier:version". Designed to allow specifing the set of excludes from the command
+     * "groupId:artifactId:type:classifier:version". Designed to allow specifying the set of excludes from the command
      * line. When specifying excludes from the pom, use the {@link #excludes} configuration instead. If this property is
      * specified then the {@link # exclude} configuration is ignored.
      *

src/main/java/org/codehaus/mojo/versions/AbstractVersionsReportRenderer.java

@@ -780,40 +780,47 @@ private Set<String> getVersionsInRange( Property property, PropertyVersions vers
 
     protected String getLabel( ArtifactVersion version, AbstractVersionDetails versions )
     {
-        String label = null;
-        if ( equals( version, versions.getNewestUpdate( of( MAJOR ) ) ) )
+        if ( equals( version, versions.getNewestUpdate( of( SUBINCREMENTAL ) ) ) )
         {
-            label = getText( "report.latestMajor" );
+            return getText( "report.latestSubIncremental" );
         }
-        else if ( equals( version, versions.getOldestUpdate( of( MAJOR ) ) ) )
+
+        if ( equals( version, versions.getOldestUpdate( of( SUBINCREMENTAL ) ) ) )
         {
-            label = getText( "report.nextMajor" );
+            return getText( "report.nextVersion" );
         }
-        else if ( equals( version, versions.getNewestUpdate( of( MINOR ) ) ) )
+
+        if ( equals( version, versions.getOldestUpdate( of( INCREMENTAL ) ) ) )
         {
-            label = getText( "report.latestMinor" );
+            return getText( "report.nextIncremental" );
         }
-        else if ( equals( version, versions.getOldestUpdate( of( MINOR ) ) ) )
+
+        if ( equals( version, versions.getNewestUpdate( of( INCREMENTAL ) ) ) )
         {
-            label = getText( "report.nextMinor" );
+            return getText( "report.latestIncremental" );
         }
-        else if ( equals( version, versions.getNewestUpdate( of( INCREMENTAL ) ) ) )
+
+        if ( equals( version, versions.getOldestUpdate( of( MINOR ) ) ) )
         {
-            label = getText( "report.latestIncremental" );
+            return getText( "report.nextMinor" );
         }
-        else if ( equals( version, versions.getOldestUpdate( of( INCREMENTAL ) ) ) )
+
+        if ( equals( version, versions.getNewestUpdate( of( MINOR ) ) ) )
         {
-            label = getText( "report.nextIncremental" );
+            return getText( "report.latestMinor" );
         }
-        else if ( equals( version, versions.getNewestUpdate( of( SUBINCREMENTAL ) ) ) )
+
+        if ( equals( version, versions.getOldestUpdate( of( MAJOR ) ) ) )
         {
-            label = getText( "report.latestSubIncremental" );
+            return getText( "report.nextMajor" );
         }
-        else if ( equals( version, versions.getOldestUpdate( of( SUBINCREMENTAL ) ) ) )
+
+        if ( equals( version, versions.getNewestUpdate( of( MAJOR ) ) ) )
         {
-            label = getText( "report.nextVersion" );
+            return getText( "report.latestMajor" );
         }
-        return label;
+
+        return "";
     }
 
 }

src/main/java/org/codehaus/mojo/versions/AbstractVersionsUpdaterMojo.java

@@ -356,6 +356,7 @@ protected ArtifactVersion findLatestVersion( Artifact artifact, VersionRange ver
      * @param versionRange          The version range.
      * @param allowingSnapshots     <code>null</code> for no override, otherwise the local override to apply.
      * @param usePluginRepositories Use plugin repositories
+     * @param allowDowngrade        whether downgrades should be allowed
      * @return The latest version of the specified artifact that matches the specified version range or
      * <code>null</code> if no matching version could be found.
      * @throws ArtifactMetadataRetrievalException If the artifact metadata could not be found.
@@ -515,6 +516,7 @@ protected boolean shouldApplyUpdate( Artifact artifact, String currentVersion, A
      * @param artifact       The artifact.
      * @param currentVersion The current version of the artifact.
      * @param updateVersion  The proposed new version of the artifact.
+     * @param forceUpdate    if true, LATEST and RELEASE versions will be overwritten with the real version
      * @return <code>true</code> if the update should be applied to the pom.
      * @since 2.9
      */
@@ -575,7 +577,7 @@ protected boolean shouldApplyUpdate( Artifact artifact, String currentVersion, A
      * @param allowMajorUpdates       Allow major updates
      * @param allowMinorUpdates       Allow minor updates
      * @param allowIncrementalUpdates Allow incremental updates
-     * @return Returns the segment (0-based) that is unchangable. If any segment can change, returns -1.
+     * @return Returns the segment (0-based) that is unchangeable. If any segment can change, returns -1.
      */
     protected Optional<Segment> determineUnchangedSegment( boolean allowMajorUpdates, boolean allowMinorUpdates,
                                                            boolean allowIncrementalUpdates )

src/main/java/org/codehaus/mojo/versions/DependencyUpdatesReport.java

@@ -65,7 +65,7 @@ public class DependencyUpdatesReport extends AbstractVersionsReport
     protected boolean processDependencyManagement;
 
     /**
-     * Whether to process the depdendencyManagement part transitive or not.
+     * Whether to process the dependencyManagement part transitive or not.
      * In case of <code>&lt;type&gt;pom&lt;/type&gt;</code>and
      * <code>&lt;scope&gt;import&lt;/scope&gt;</code> this means
      * by default to report also the imported dependencies.

src/main/java/org/codehaus/mojo/versions/DisplayDependencyUpdatesMojo.java

@@ -94,7 +94,7 @@ public class DisplayDependencyUpdatesMojo
     private boolean processDependencyManagement;
 
     /**
-     * Whether to process the depdendencyManagement part transitive or not.
+     * Whether to process the dependencyManagement part transitive or not.
      * In case of <code>&lt;type&gt;pom&lt;/type&gt;</code>and
      * <code>&lt;scope&gt;import&lt;/scope&gt;</code> this means
      * by default to report also the imported dependencies.
@@ -691,12 +691,28 @@ private DependencyManagement getProjectDependencyManagement( MavenProject projec
 
     private Optional<Segment> calculateUpdateScope()
     {
-        return !allowAnyUpdates
-                ? allowMajorUpdates ? of( MAJOR )
-                : allowMinorUpdates ? of( MINOR )
-                : allowIncrementalUpdates ? of( INCREMENTAL )
-                : empty()
-                : empty();
+        if ( !allowIncrementalUpdates && !allowMinorUpdates && !allowMajorUpdates && !allowAnyUpdates )
+        {
+            throw new IllegalArgumentException( "One of: allowAnyUpdates, allowMajorUpdates, allowMinorUpdates, "
+                    + "allowIncrementalUpdates must be true" );
+        }
+
+        if ( allowAnyUpdates && allowMajorUpdates && allowMinorUpdates )
+        {
+            return empty();
+        }
+
+        if ( allowMajorUpdates && allowMinorUpdates )
+        {
+            return of( MAJOR );
+        }
+
+        if ( allowMinorUpdates )
+        {
+            return of( MINOR );
+        }
+
+        return of( INCREMENTAL );
     }
 
     private void logUpdates( Map<Dependency, ArtifactVersions> updates, String section )

src/main/java/org/codehaus/mojo/versions/SetMojo.java

@@ -402,9 +402,10 @@ public void execute() throws MojoExecutionException, MojoFailureException
 
     /**
      * Returns the incremented version, with the nextSnapshotIndexToIncrement indicating the 1-based index,
-     * conunting from the left, or the most major version component, of the version string.
+     * from the left, or the most major version component, of the version string.
      *
      * @param version input version
+     * @param nextSnapshotIndexToIncrement 1-based segment number to be incremented
      * @return version with the incremented index specified by nextSnapshotIndexToIncrement or last index
      * @throws MojoExecutionException thrown if the input parameters are invalid
      */

src/main/java/org/codehaus/mojo/versions/api/AbstractVersionDetails.java

@@ -31,11 +31,13 @@
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.apache.maven.artifact.versioning.Restriction;
 import org.apache.maven.artifact.versioning.VersionRange;
+import org.codehaus.mojo.versions.ordering.BoundArtifactVersion;
 import org.codehaus.mojo.versions.ordering.InvalidSegmentException;
 import org.codehaus.mojo.versions.ordering.VersionComparator;
 
 import static java.util.Optional.empty;
 import static java.util.Optional.of;
+import static org.codehaus.mojo.versions.api.Segment.SUBINCREMENTAL;
 
 /**
  * Base class for {@link org.codehaus.mojo.versions.api.VersionDetails}.
@@ -171,7 +173,6 @@ private static <T> Iterable<T> reverse( T[] array )
     public final ArtifactVersion getNewestVersion( VersionRange versionRange, Restriction restriction,
                                                    boolean includeSnapshots, boolean allowDowngrade )
     {
-        final VersionComparator versionComparator = getVersionComparator();
         // reverse( getVersions( ... ) ) will contain versions sorted from latest to oldest,
         // so we only need to find the first candidate fulfilling the criteria
         for ( ArtifactVersion candidate : reverse( getVersions( includeSnapshots ) ) )
@@ -260,13 +261,22 @@ public final ArtifactVersion[] getNewerVersions( String versionString, Optional<
             throws InvalidSegmentException
     {
         ArtifactVersion currentVersion = new DefaultArtifactVersion( versionString );
-        ArtifactVersion lowerBound =
-                allowDowngrade ? getLowerBoundArtifactVersion( currentVersion, upperBoundSegment ) : currentVersion;
-        ArtifactVersion upperBound = !upperBoundSegment.isPresent() ? null
-                : getVersionComparator().incrementSegment( lowerBound, upperBoundSegment.get() );
+        ArtifactVersion lowerBound = allowDowngrade
+                ? getLowerBound( currentVersion, upperBoundSegment )
+                    .map( DefaultArtifactVersion::new )
+                    .orElse( null )
+                : currentVersion;
+        ArtifactVersion upperBound =
+                !upperBoundSegment.isPresent()
+                    ? null
+                    : upperBoundSegment
+                        .map( s -> (ArtifactVersion) new BoundArtifactVersion( currentVersion,
+                                        s.isMajorTo( SUBINCREMENTAL )
+                                                ? Segment.of( s.value() + 1 )
+                                                : s ) )
+                        .orElse( null );
 
         Restriction restriction = new Restriction( lowerBound, allowDowngrade, upperBound, allowDowngrade );
-        // TODO shouldn't allowDowngrade boolean be passed to this call ?
         return getVersions( restriction, includeSnapshots );
     }
 
@@ -346,7 +356,8 @@ public final ArtifactVersion getOldestUpdate( ArtifactVersion currentVersion, Op
     {
         try
         {
-            return getOldestVersion( restrictionFor( currentVersion, updateScope ), includeSnapshots );
+            return getOldestVersion( getVersionComparator().restrictionFor( currentVersion, updateScope ),
+                    includeSnapshots );
         }
         catch ( InvalidSegmentException e )
         {
@@ -359,7 +370,8 @@ public final ArtifactVersion getNewestUpdate( ArtifactVersion currentVersion, Op
     {
         try
         {
-            return getNewestVersion( restrictionFor( currentVersion, updateScope ), includeSnapshots );
+            return getNewestVersion( getVersionComparator().restrictionFor( currentVersion, updateScope ),
+                    includeSnapshots );
         }
         catch ( InvalidSegmentException e )
         {
@@ -372,7 +384,8 @@ public final ArtifactVersion[] getAllUpdates( ArtifactVersion currentVersion, Op
     {
         try
         {
-            return getVersions( restrictionFor( currentVersion, updateScope ), includeSnapshots );
+            return getVersions( getVersionComparator().restrictionFor( currentVersion, updateScope ),
+                    includeSnapshots );
         }
         catch ( InvalidSegmentException e )
         {
@@ -433,32 +446,12 @@ public ArtifactVersion[] getAllUpdates( VersionRange versionRange, boolean inclu
         return getVersions( versionRange, restriction, includeSnapshots );
     }
 
-    /**
-     * Returns the lower bound version based on the given artifact version
-     * and the lowest unchanged segment index (0-based); -1 means that the whole version string can be changed,
-     * implying that there is also no string designation of the lower bound version.
-     *
-     * @param version {@link ArtifactVersion} object specyfing the verion for which the lower bound is being computed
-     * @param unchangedSegment first segment not to be changed; empty() means any segment can change
-     * @return {@link ArtifactVersion} the lowest artifact version with the given segment held or null if no such
-     * version can be found
-     * @throws InvalidSegmentException if the requested segment is outside the bounds (less than 1 or greater than
-     * the segment count)
-     */
-    protected ArtifactVersion getLowerBoundArtifactVersion( ArtifactVersion version,
-                                                            Optional<Segment> unchangedSegment )
-            throws InvalidSegmentException
-    {
-        Optional<String> lowerBound = getLowerBound( version, unchangedSegment );
-        return lowerBound.map( DefaultArtifactVersion::new ).orElse( null );
-    }
-
     /**
      * Returns the string designation of the lower bound version based on the given artifact version
      * and the lowest unchanged segment index (0-based); -1 means that the whole version string can be changed,
      * implying that there is also no string designation of the lower bound version.
      *
-     * @param version {@link ArtifactVersion} object specyfing the verion for which the lower bound is being computed
+     * @param version {@link ArtifactVersion} object specifying the version for which the lower bound is being computed
      * @param unchangedSegment first segment not to be changed; empty() means anything can change
      * @return {@link Optional} string containing the lowest artifact version with the given segment held
      * @throws InvalidSegmentException if the requested segment is outside of the bounds (less than 1 or greater than
@@ -527,26 +520,4 @@ private boolean isVersionInRestriction( Restriction restriction, ArtifactVersion
         }
         return ( includeLower || lower != 0 ) && ( includeUpper || upper != 0 );
     }
-
-    /**
-     * Helper method to get the artifact boundaries for computing updates
-     *
-     * @param currentVersion The current version.
-     * @param scope scope of the restriction or Optional.empty() for no restriction
-     * @return {@linkplain Restriction} object based on the arguments
-     * @throws InvalidSegmentException if {@code segment} ∉ [0, segmentCount)
-     */
-    protected Restriction restrictionFor( ArtifactVersion currentVersion, Optional<Segment> scope )
-            throws InvalidSegmentException
-    {
-        VersionComparator versionComparator = getVersionComparator();
-        ArtifactVersion lowerBound = scope.isPresent() && scope.get().value() < Segment.SUBINCREMENTAL.value()
-                ? versionComparator.incrementSegment( currentVersion, scope.get() )
-                : currentVersion;
-        ArtifactVersion upperBound = scope.isPresent() && scope.get().value() > Segment.MAJOR.value()
-                ? versionComparator.incrementSegment( currentVersion, Segment.of( scope.get().value() - 1 ) )
-                : null;
-        return new Restriction( lowerBound, lowerBound != currentVersion,
-                upperBound, false );
-    }
 }

src/main/java/org/codehaus/mojo/versions/api/PomHelper.java

@@ -1476,9 +1476,10 @@ public static String getGroupId( Model model )
      * Finds the local root of the specified project.
      *
      * @param project              The project to find the local root for.
+     * @param builder              {@linkplain MavenProjectBuilder} object
      * @param localRepository      the local repo.
      * @param globalProfileManager the global profile manager.
-     * @param logger               The logger to log to.
+     * @param logger               The logger to log tog
      * @return The local root (note this may be the project passed as an argument).
      */
     public static MavenProject getLocalRoot( MavenProjectBuilder builder, MavenProject project,

src/main/java/org/codehaus/mojo/versions/api/Segment.java

@@ -26,14 +26,7 @@
  */
 public enum Segment implements Comparable<Segment>
 {
-    MAJOR( 0 ), MINOR( 1 ), INCREMENTAL( 2 ), SUBINCREMENTAL( 3 );
-
-    private final int index;
-
-    Segment( int index )
-    {
-        this.index = index;
-    }
+    MAJOR, MINOR, INCREMENTAL, SUBINCREMENTAL;
 
     /**
      * Returns the 0-based sendex index
@@ -42,20 +35,26 @@ public enum Segment implements Comparable<Segment>
      */
     public int value()
     {
-        return index;
+        return ordinal();
     }
 
     public static Segment of( int index )
     {
-        switch ( index )
+        if ( index < 0 || index > 3 )
         {
-            case 0: return MAJOR;
-            case 1: return MINOR;
-            case 2: return INCREMENTAL;
-            case 3: return SUBINCREMENTAL;
-            default:
-                throw new IllegalArgumentException( "Wrong segment index: " + index );
+            throw new IllegalArgumentException( "Wrong segment index: " + index );
         }
+        return values()[index];
+    }
+
+    /**
+     * Returns true if the given segment is more major than the other
+     * @param other other segment to compare
+     * @return true if the given segment is more major
+     */
+    public boolean isMajorTo( Segment other )
+    {
+        return value() < other.value();
     }
 
     @Override