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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.repository.metadata;
20  
21  import java.util.ArrayList;
22  import java.util.Iterator;
23  import java.util.List;
24  
25  import org.apache.maven.artifact.ArtifactScopeEnum;
26  
27  /**
28   * classpath container that is aware of the classpath scope
29   *
30   * @author <a href="oleg@codehaus.org">Oleg Gusakov</a>
31   *
32   */
33  public class ClasspathContainer implements Iterable<ArtifactMetadata> {
34      private List<ArtifactMetadata> classpath;
35  
36      private ArtifactScopeEnum scope;
37  
38      // -------------------------------------------------------------------------------------------
39      public ClasspathContainer(ArtifactScopeEnum scope) {
40          this.scope = ArtifactScopeEnum.checkScope(scope);
41      }
42  
43      // -------------------------------------------------------------------------------------------
44      public ClasspathContainer(List<ArtifactMetadata> classpath, ArtifactScopeEnum scope) {
45          this(scope);
46          this.classpath = classpath;
47      }
48  
49      // -------------------------------------------------------------------------------------------
50      public Iterator<ArtifactMetadata> iterator() {
51          return classpath == null ? null : classpath.iterator();
52      }
53  
54      // -------------------------------------------------------------------------------------------
55      public ClasspathContainer add(ArtifactMetadata md) {
56          if (classpath == null) {
57              classpath = new ArrayList<>(16);
58          }
59  
60          classpath.add(md);
61  
62          return this;
63      }
64  
65      // -------------------------------------------------------------------------------------------
66      public List<ArtifactMetadata> getClasspath() {
67          return classpath;
68      }
69  
70      // -------------------------------------------------------------------------------------------
71      public MetadataTreeNode getClasspathAsTree() throws MetadataResolutionException {
72          if (classpath == null || classpath.size() < 1) {
73              return null;
74          }
75  
76          MetadataTreeNode tree = null;
77          MetadataTreeNode parent = null;
78  
79          for (ArtifactMetadata md : classpath) {
80              MetadataTreeNode node = new MetadataTreeNode(md, parent, md.isResolved(), md.getArtifactScope());
81              if (tree == null) {
82                  tree = node;
83              }
84  
85              if (parent != null) {
86                  parent.setNChildren(1);
87                  parent.addChild(0, node);
88              }
89  
90              parent = node;
91          }
92          return tree;
93      }
94  
95      public void setClasspath(List<ArtifactMetadata> classpath) {
96          this.classpath = classpath;
97      }
98  
99      public ArtifactScopeEnum getScope() {
100         return scope;
101     }
102 
103     public void setScope(ArtifactScopeEnum scope) {
104         this.scope = scope;
105     }
106 
107     // -------------------------------------------------------------------------------------------
108     @Override
109     public String toString() {
110         StringBuilder sb = new StringBuilder(256);
111         sb.append("[scope=").append(scope.getScope());
112         if (classpath != null) {
113             for (ArtifactMetadata md : classpath) {
114                 sb.append(": ")
115                         .append(md.toString())
116                         .append('{')
117                         .append(md.getArtifactUri())
118                         .append('}');
119             }
120         }
121         sb.append(']');
122         return sb.toString();
123     }
124     // -------------------------------------------------------------------------------------------
125     // -------------------------------------------------------------------------------------------
126 }