| /* |
| * 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.netbeans.modules.maven.dependencies; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.Stack; |
| import org.apache.maven.artifact.Artifact; |
| import org.apache.maven.shared.dependency.tree.DependencyNode; |
| import org.apache.maven.shared.dependency.tree.traversal.DependencyNodeVisitor; |
| |
| /** |
| * |
| * @author mkleint |
| */ |
| public class DependencyExcludeNodeVisitor implements DependencyNodeVisitor { |
| private DependencyNode root; |
| private Set<DependencyNode> directs; |
| private Stack<DependencyNode> path; |
| private Set<Stack<DependencyNode>> allPaths; |
| private String key; |
| |
| public DependencyExcludeNodeVisitor(String groupId, String artifactId, String type) { |
| assert groupId != null; |
| assert artifactId != null; |
| key = groupId + ":" + artifactId + ":" + type; |
| } |
| |
| public Set<DependencyNode> getDirectDependencies() { |
| return directs; |
| } |
| |
| public Set<Stack<DependencyNode>> getAllPaths() { |
| return allPaths; |
| } |
| |
| @Override |
| public boolean visit(DependencyNode node) { |
| if (root == null) { |
| root = node; |
| directs = new HashSet<DependencyNode>(); |
| path = new Stack<DependencyNode>(); |
| allPaths = new HashSet<Stack<DependencyNode>>(); |
| return true; |
| } |
| path.push(node); |
| Artifact artifact = node.getArtifact(); |
| if (key.equals(artifact.getDependencyConflictId())) { |
| if (!path.isEmpty()) { |
| directs.add(path.firstElement()); |
| Stack<DependencyNode> copy = new Stack<DependencyNode>(); |
| copy.addAll(path); |
| allPaths.add(copy); |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean endVisit(DependencyNode node) { |
| if (root == node) { |
| root = null; |
| path = null; |
| return true; |
| } |
| path.pop(); |
| return true; |
| } |
| |
| } |