| package org.apache.maven.plugins.enforcer; |
| |
| /* |
| * 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.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.maven.artifact.Artifact; |
| import org.apache.maven.artifact.factory.ArtifactFactory; |
| import org.apache.maven.artifact.metadata.ArtifactMetadataSource; |
| import org.apache.maven.artifact.repository.ArtifactRepository; |
| import org.apache.maven.artifact.resolver.ArtifactCollector; |
| import org.apache.maven.artifact.resolver.filter.ArtifactFilter; |
| import org.apache.maven.enforcer.rule.api.EnforcerRule; |
| import org.apache.maven.enforcer.rule.api.EnforcerRuleException; |
| import org.apache.maven.enforcer.rule.api.EnforcerRuleHelper; |
| import org.apache.maven.plugin.logging.Log; |
| import org.apache.maven.plugins.enforcer.utils.DependencyVersionMap; |
| import org.apache.maven.project.MavenProject; |
| import org.apache.maven.shared.dependency.tree.DependencyNode; |
| import org.apache.maven.shared.dependency.tree.DependencyTreeBuilder; |
| import org.apache.maven.shared.dependency.tree.DependencyTreeBuilderException; |
| import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException; |
| import org.codehaus.plexus.component.repository.exception.ComponentLookupException; |
| import org.codehaus.plexus.i18n.I18N; |
| |
| /** |
| * @author <a href="mailto:rex@e-hoffman.org">Rex Hoffman</a> |
| */ |
| public class DependencyConvergence |
| implements EnforcerRule |
| { |
| |
| private static Log log; |
| |
| private static I18N i18n; |
| |
| private boolean uniqueVersions; |
| |
| public void setUniqueVersions( boolean uniqueVersions ) |
| { |
| this.uniqueVersions = uniqueVersions; |
| } |
| |
| /** |
| * Uses the {@link EnforcerRuleHelper} to populate the values of the |
| * {@link DependencyTreeBuilder#buildDependencyTree(MavenProject, ArtifactRepository, ArtifactFactory, ArtifactMetadataSource, ArtifactFilter, ArtifactCollector)} |
| * factory method. <br/> |
| * This method simply exists to hide all the ugly lookup that the {@link EnforcerRuleHelper} has to do. |
| * |
| * @param helper |
| * @return a Dependency Node which is the root of the project's dependency tree |
| * @throws EnforcerRuleException |
| */ |
| private DependencyNode getNode( EnforcerRuleHelper helper ) |
| throws EnforcerRuleException |
| { |
| try |
| { |
| MavenProject project = (MavenProject) helper.evaluate( "${project}" ); |
| DependencyTreeBuilder dependencyTreeBuilder = |
| (DependencyTreeBuilder) helper.getComponent( DependencyTreeBuilder.class ); |
| ArtifactRepository repository = (ArtifactRepository) helper.evaluate( "${localRepository}" ); |
| ArtifactFactory factory = (ArtifactFactory) helper.getComponent( ArtifactFactory.class ); |
| ArtifactMetadataSource metadataSource = |
| (ArtifactMetadataSource) helper.getComponent( ArtifactMetadataSource.class ); |
| ArtifactCollector collector = (ArtifactCollector) helper.getComponent( ArtifactCollector.class ); |
| ArtifactFilter filter = null; // we need to evaluate all scopes |
| DependencyNode node = |
| dependencyTreeBuilder.buildDependencyTree( project, repository, factory, metadataSource, filter, |
| collector ); |
| return node; |
| } |
| catch ( ExpressionEvaluationException e ) |
| { |
| throw new EnforcerRuleException( "Unable to lookup an expression " + e.getLocalizedMessage(), e ); |
| } |
| catch ( ComponentLookupException e ) |
| { |
| throw new EnforcerRuleException( "Unable to lookup a component " + e.getLocalizedMessage(), e ); |
| } |
| catch ( DependencyTreeBuilderException e ) |
| { |
| throw new EnforcerRuleException( "Could not build dependency tree " + e.getLocalizedMessage(), e ); |
| } |
| } |
| |
| public void execute( EnforcerRuleHelper helper ) |
| throws EnforcerRuleException |
| { |
| if ( log == null ) |
| { |
| log = helper.getLog(); |
| } |
| try |
| { |
| if ( i18n == null ) |
| { |
| i18n = (I18N) helper.getComponent( I18N.class ); |
| } |
| DependencyNode node = getNode( helper ); |
| DependencyVersionMap visitor = new DependencyVersionMap( log ); |
| visitor.setUniqueVersions( uniqueVersions ); |
| node.accept( visitor ); |
| List<CharSequence> errorMsgs = new ArrayList<CharSequence>(); |
| errorMsgs.addAll( getConvergenceErrorMsgs( visitor.getConflictedVersionNumbers() ) ); |
| for ( CharSequence errorMsg : errorMsgs ) |
| { |
| log.error( errorMsg ); |
| } |
| if ( errorMsgs.size() > 0 ) |
| { |
| throw new EnforcerRuleException( "Failed while enforcing releasability the error(s) are " + errorMsgs ); |
| } |
| } |
| catch ( ComponentLookupException e ) |
| { |
| throw new EnforcerRuleException( "Unable to lookup a component " + e.getLocalizedMessage(), e ); |
| } |
| catch ( Exception e ) |
| { |
| throw new EnforcerRuleException( e.getLocalizedMessage(), e ); |
| } |
| } |
| |
| private String getFullArtifactName( Artifact artifact ) |
| { |
| return artifact.getGroupId() + ":" + artifact.getArtifactId() + ":" + artifact.getVersion(); |
| } |
| |
| private StringBuilder buildTreeString( DependencyNode node ) |
| { |
| List<String> loc = new ArrayList<String>(); |
| DependencyNode currentNode = node; |
| while ( currentNode != null ) |
| { |
| loc.add( getFullArtifactName( currentNode.getArtifact() ) ); |
| currentNode = currentNode.getParent(); |
| } |
| Collections.reverse( loc ); |
| StringBuilder builder = new StringBuilder(); |
| for ( int i = 0; i < loc.size(); i++ ) |
| { |
| for ( int j = 0; j < i; j++ ) |
| { |
| builder.append( " " ); |
| } |
| builder.append( "+-" + loc.get( i ) ); |
| builder.append( "\n" ); |
| } |
| return builder; |
| } |
| |
| private List<String> getConvergenceErrorMsgs( List<List<DependencyNode>> errors ) |
| { |
| List<String> errorMsgs = new ArrayList<String>(); |
| for ( List<DependencyNode> nodeList : errors ) |
| { |
| errorMsgs.add( buildConvergenceErrorMsg( nodeList ) ); |
| } |
| return errorMsgs; |
| } |
| |
| private String buildConvergenceErrorMsg( List<DependencyNode> nodeList ) |
| { |
| StringBuilder builder = new StringBuilder(); |
| builder.append( "\nDependency convergence error for " + getFullArtifactName( nodeList.get( 0 ).getArtifact() ) |
| + " paths to dependency are:\n" ); |
| if ( nodeList.size() > 0 ) |
| { |
| builder.append( buildTreeString( nodeList.get( 0 ) ) ); |
| } |
| for ( DependencyNode node : nodeList.subList( 1, nodeList.size() ) ) |
| { |
| builder.append( "and\n" ); |
| builder.append( buildTreeString( node ) ); |
| } |
| return builder.toString(); |
| } |
| |
| /** |
| * If your rule is cacheable, you must return a unique id when parameters or conditions change that would cause the |
| * result to be different. Multiple cached results are stored based on their id. The easiest way to do this is to |
| * return a hash computed from the values of your parameters. If your rule is not cacheable, then the result here is |
| * not important, you may return anything. |
| */ |
| public String getCacheId() |
| { |
| return ""; |
| } |
| |
| /** |
| * This tells the system if the results are cacheable at all. Keep in mind that during forked builds and other |
| * things, a given rule may be executed more than once for the same project. This means that even things that change |
| * from project to project may still be cacheable in certain instances. |
| */ |
| public boolean isCacheable() |
| { |
| return false; |
| } |
| |
| /** |
| * If the rule is cacheable and the same id is found in the cache, the stored results are passed to this method to |
| * allow double checking of the results. Most of the time this can be done by generating unique ids, but sometimes |
| * the results of objects returned by the helper need to be queried. You may for example, store certain objects in |
| * your rule and then query them later. |
| */ |
| public boolean isResultValid( EnforcerRule arg0 ) |
| { |
| return false; |
| } |
| } |