1 package org.apache.maven.shared.artifact.filter.collection;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 /**
23 *
24 */
25
26 import java.util.ArrayList;
27 import java.util.Iterator;
28 import java.util.Set;
29
30 /**
31 * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
32 * @version $Id: FilterArtifacts.java 661727 2008-05-30 14:21:49Z bentmann $
33 */
34 public class FilterArtifacts
35 {
36 private ArrayList filters = new ArrayList();
37
38 public FilterArtifacts()
39 {
40 filters = new ArrayList();
41 }
42
43 /**
44 * Removes all of the elements from this list. The list will be empty after this call returns.
45 */
46 public void clearFilters()
47 {
48 filters.clear();
49 }
50
51 /**
52 * Appends the specified element to the end of this list.
53 *
54 * @param filter element to be appended to this list.
55 */
56 public void addFilter( ArtifactsFilter filter )
57 {
58 if ( filter != null )
59 {
60 filters.add( filter );
61 }
62 }
63
64 /**
65 * Inserts the specified element at the specified position in this list. Shifts the element currently at that
66 * position (if any) and any subsequent elements to the right (adds one to their indices).
67 *
68 * @param index index at which the specified element is to be inserted.
69 * @param element element to be inserted.
70 * @throws IndexOutOfBoundsException if index is out of range <tt>(index < 0 || index > size())</tt>.
71 */
72 public void addFilter( int index, ArtifactsFilter filter )
73 {
74 if ( filter != null )
75 {
76 filters.add( index, filter );
77 }
78 }
79
80 public Set filter( Set artifacts )
81 throws ArtifactFilterException
82 {
83 // apply filters
84 Iterator filterIterator = filters.iterator();
85 while ( filterIterator.hasNext() )
86 {
87 // log(artifacts,log);
88 ArtifactsFilter filter = (ArtifactsFilter) filterIterator.next();
89 try
90 {
91 artifacts = filter.filter( artifacts );
92 }
93 catch ( NullPointerException e )
94 {
95 // don't do anything, just skip this.
96 continue;
97 }
98 }
99
100 return artifacts;
101 }
102
103 /**
104 * @return Returns the filters.
105 */
106 public ArrayList getFilters()
107 {
108 return this.filters;
109 }
110
111 /**
112 * @param filters The filters to set.
113 */
114 public void setFilters( ArrayList filters )
115 {
116 this.filters = filters;
117 }
118 }