| package org.apache.maven.shared.dependency.analyzer; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.maven.artifact.Artifact; |
| import org.apache.maven.project.MavenProject; |
| |
| /** |
| * |
| * |
| * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a> |
| * @version $Id$ |
| * @plexus.component role="org.apache.maven.shared.dependency.analyzer.ProjectDependencyAnalyzer" |
| */ |
| public class DefaultProjectDependencyAnalyzer |
| implements ProjectDependencyAnalyzer |
| { |
| // fields ----------------------------------------------------------------- |
| |
| /** |
| * ClassAnalyzer |
| * |
| * @plexus.requirement |
| */ |
| private ClassAnalyzer classAnalyzer; |
| |
| /** |
| * DependencyAnalyzer |
| * |
| * @plexus.requirement |
| */ |
| private DependencyAnalyzer dependencyAnalyzer; |
| |
| // ProjectDependencyAnalyzer methods -------------------------------------- |
| |
| /* |
| * @see org.apache.maven.shared.dependency.analyzer.ProjectDependencyAnalyzer#analyze(org.apache.maven.project.MavenProject) |
| */ |
| public ProjectDependencyAnalysis analyze( MavenProject project ) |
| throws ProjectDependencyAnalyzerException |
| { |
| try |
| { |
| Map artifactClassMap = buildArtifactClassMap( project ); |
| |
| Set dependencyClasses = buildDependencyClasses( project ); |
| |
| Set declaredArtifacts = buildDeclaredArtifacts( project ); |
| |
| Set usedArtifacts = buildUsedArtifacts( artifactClassMap, dependencyClasses ); |
| |
| Set usedDeclaredArtifacts = new HashSet( declaredArtifacts ); |
| usedDeclaredArtifacts.retainAll( usedArtifacts ); |
| |
| Set usedUndeclaredArtifacts = new HashSet( usedArtifacts ); |
| usedUndeclaredArtifacts = removeAll( usedUndeclaredArtifacts, declaredArtifacts ); |
| |
| Set unusedDeclaredArtifacts = new HashSet( declaredArtifacts ); |
| unusedDeclaredArtifacts = removeAll( unusedDeclaredArtifacts, usedArtifacts ); |
| |
| return new ProjectDependencyAnalysis( usedDeclaredArtifacts, usedUndeclaredArtifacts, |
| unusedDeclaredArtifacts ); |
| } |
| catch ( IOException exception ) |
| { |
| throw new ProjectDependencyAnalyzerException( "Cannot analyze dependencies", exception ); |
| } |
| } |
| |
| /** |
| * This method defines a new way to remove the artifacts by using the |
| * conflict id. We don't care about the version here because there can be |
| * only 1 for a given artifact anyway. |
| * |
| * @param start |
| * initial set |
| * @param remove |
| * set to exclude |
| * @return set with remove excluded |
| */ |
| private Set removeAll( Set start, Set remove ) |
| { |
| Set results = new HashSet( start.size() ); |
| Iterator iter = start.iterator(); |
| while ( iter.hasNext() ) |
| { |
| Artifact artifact = (Artifact) iter.next(); |
| Iterator iter2 = remove.iterator(); |
| boolean found = false; |
| while ( iter2.hasNext() ) |
| { |
| Artifact artifact2 = (Artifact) iter2.next(); |
| if ( artifact.getDependencyConflictId().equals( artifact2.getDependencyConflictId() ) ) |
| { |
| found = true; |
| } |
| } |
| if ( !found ) |
| { |
| results.add( artifact ); |
| } |
| } |
| return results; |
| } |
| |
| // private methods -------------------------------------------------------- |
| |
| private Map buildArtifactClassMap( MavenProject project ) |
| throws IOException |
| { |
| Map artifactClassMap = new HashMap(); |
| |
| Set dependencyArtifacts = project.getArtifacts(); |
| |
| for ( Iterator iterator = dependencyArtifacts.iterator(); iterator.hasNext(); ) |
| { |
| Artifact artifact = (Artifact) iterator.next(); |
| |
| File file = artifact.getFile(); |
| |
| if ( file != null && file.getName().endsWith( ".jar" ) ) |
| { |
| URL url = file.toURL(); |
| |
| Set classes = classAnalyzer.analyze( url ); |
| |
| artifactClassMap.put( artifact, classes ); |
| } |
| } |
| |
| return artifactClassMap; |
| } |
| |
| private Set buildDependencyClasses( MavenProject project ) |
| throws IOException |
| { |
| Set dependencyClasses = new HashSet(); |
| |
| String outputDirectory = project.getBuild().getOutputDirectory(); |
| dependencyClasses.addAll( buildDependencyClasses( outputDirectory ) ); |
| |
| String testOutputDirectory = project.getBuild().getTestOutputDirectory(); |
| dependencyClasses.addAll( buildDependencyClasses( testOutputDirectory ) ); |
| |
| return dependencyClasses; |
| } |
| |
| private Set buildDependencyClasses( String path ) |
| throws IOException |
| { |
| URL url = new File( path ).toURI().toURL(); |
| |
| return dependencyAnalyzer.analyze( url ); |
| } |
| |
| private Set buildDeclaredArtifacts( MavenProject project ) |
| { |
| Set declaredArtifacts = project.getDependencyArtifacts(); |
| |
| if ( declaredArtifacts == null ) |
| { |
| declaredArtifacts = Collections.EMPTY_SET; |
| } |
| |
| return declaredArtifacts; |
| } |
| |
| private Set buildUsedArtifacts( Map artifactClassMap, Set dependencyClasses ) |
| { |
| Set usedArtifacts = new HashSet(); |
| |
| for ( Iterator dependencyIterator = dependencyClasses.iterator(); dependencyIterator.hasNext(); ) |
| { |
| String className = (String) dependencyIterator.next(); |
| |
| Artifact artifact = findArtifactForClassName( artifactClassMap, className ); |
| |
| if ( artifact != null ) |
| { |
| usedArtifacts.add( artifact ); |
| } |
| } |
| |
| return usedArtifacts; |
| } |
| |
| private Artifact findArtifactForClassName( Map artifactClassMap, String className ) |
| { |
| for ( Iterator artifactIterator = artifactClassMap.keySet().iterator(); artifactIterator.hasNext(); ) |
| { |
| Artifact artifact = (Artifact) artifactIterator.next(); |
| |
| Set artifactClassNames = (Set) artifactClassMap.get( artifact ); |
| |
| for ( Iterator classNameIterator = artifactClassNames.iterator(); classNameIterator.hasNext(); ) |
| { |
| String artifactClassName = (String) classNameIterator.next(); |
| |
| if ( artifactClassName.equals( className ) ) |
| return artifact; |
| } |
| } |
| |
| return null; |
| } |
| } |