| /* |
| * 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. |
| */ |
| package org.apache.maven.repository.metadata; |
| |
| import javax.inject.Inject; |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.maven.artifact.ArtifactScopeEnum; |
| |
| /** |
| * default implementation of the metadata classpath transformer |
| * |
| * |
| */ |
| @Named |
| @Singleton |
| @Deprecated |
| public class DefaultClasspathTransformation implements ClasspathTransformation { |
| @Inject |
| GraphConflictResolver conflictResolver; |
| |
| // ---------------------------------------------------------------------------------------------------- |
| public ClasspathContainer transform(MetadataGraph dirtyGraph, ArtifactScopeEnum scope, boolean resolve) |
| throws MetadataGraphTransformationException { |
| try { |
| if (dirtyGraph == null || dirtyGraph.isEmpty()) { |
| return null; |
| } |
| |
| MetadataGraph cleanGraph = conflictResolver.resolveConflicts(dirtyGraph, scope); |
| |
| if (cleanGraph == null || cleanGraph.isEmpty()) { |
| return null; |
| } |
| |
| ClasspathContainer cpc = new ClasspathContainer(scope); |
| if (cleanGraph.isEmptyEdges()) { |
| // single entry in the classpath, populated from itself |
| ArtifactMetadata amd = cleanGraph.getEntry().getMd(); |
| cpc.add(amd); |
| } else { |
| ClasspathGraphVisitor v = new ClasspathGraphVisitor(cleanGraph, cpc); |
| MetadataGraphVertex entry = cleanGraph.getEntry(); |
| // entry point |
| v.visit(entry); |
| } |
| |
| return cpc; |
| } catch (GraphConflictResolutionException e) { |
| throw new MetadataGraphTransformationException(e); |
| } |
| } |
| |
| // =================================================================================================== |
| /** |
| * Helper class to traverse graph. Required to make the containing method thread-safe |
| * and yet use class level data to lessen stack usage in recursion |
| */ |
| private class ClasspathGraphVisitor { |
| MetadataGraph graph; |
| |
| ClasspathContainer cpc; |
| |
| List<MetadataGraphVertex> visited; |
| |
| // ----------------------------------------------------------------------- |
| protected ClasspathGraphVisitor(MetadataGraph cleanGraph, ClasspathContainer cpc) { |
| this.cpc = cpc; |
| this.graph = cleanGraph; |
| |
| visited = new ArrayList<>(cleanGraph.getVertices().size()); |
| } |
| |
| // ----------------------------------------------------------------------- |
| protected void visit(MetadataGraphVertex node) // , String version, String artifactUri ) |
| { |
| ArtifactMetadata md = node.getMd(); |
| if (visited.contains(node)) { |
| return; |
| } |
| |
| cpc.add(md); |
| // |
| // TreeSet<MetadataGraphEdge> deps = new TreeSet<MetadataGraphEdge>( |
| // new Comparator<MetadataGraphEdge>() |
| // { |
| // public int compare( MetadataGraphEdge e1 |
| // , MetadataGraphEdge e2 |
| // ) |
| // { |
| // if( e1.getDepth() == e2.getDepth() ) |
| // { |
| // if( e2.getPomOrder() == e1.getPomOrder() ) |
| // return |
| // e1.getTarget().toString().compareTo(e2.getTarget().toString() ); |
| // |
| // return e2.getPomOrder() - e1.getPomOrder(); |
| // } |
| // |
| // return e2.getDepth() - e1.getDepth(); |
| // } |
| // } |
| // ); |
| |
| List<MetadataGraphEdge> exits = graph.getExcidentEdges(node); |
| |
| if (exits != null && exits.size() > 0) { |
| MetadataGraphEdge[] sortedExits = exits.toArray(new MetadataGraphEdge[0]); |
| Arrays.sort(sortedExits, (e1, e2) -> { |
| if (e1.getDepth() == e2.getDepth()) { |
| if (e2.getPomOrder() == e1.getPomOrder()) { |
| return e1.getTarget() |
| .toString() |
| .compareTo(e2.getTarget().toString()); |
| } |
| return e2.getPomOrder() - e1.getPomOrder(); |
| } |
| return e2.getDepth() - e1.getDepth(); |
| }); |
| |
| for (MetadataGraphEdge e : sortedExits) { |
| MetadataGraphVertex targetNode = e.getTarget(); |
| targetNode.getMd().setArtifactScope(e.getScope()); |
| targetNode.getMd().setWhy(e.getSource().getMd().toString()); |
| visit(targetNode); |
| } |
| } |
| } |
| // ----------------------------------------------------------------------- |
| // ----------------------------------------------------------------------- |
| } |
| // ---------------------------------------------------------------------------------------------------- |
| // ---------------------------------------------------------------------------------------------------- |
| } |