1 package org.apache.maven.shared.dependency.graph.filter;
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 import java.util.Arrays;
23 import java.util.Collections;
24 import java.util.List;
25
26 import org.apache.maven.shared.dependency.graph.DependencyNode;
27
28 /**
29 * A dependency node filter that logically ANDs together a number of other dependency node filters.
30 *
31 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
32 * @version $Id$
33 * @since 1.1
34 */
35 public class AndDependencyNodeFilter
36 implements DependencyNodeFilter
37 {
38 // fields -----------------------------------------------------------------
39
40 /**
41 * The dependency node filters that this filter ANDs together.
42 */
43 private final List<DependencyNodeFilter> filters;
44
45 // constructors -----------------------------------------------------------
46
47 /**
48 * Creates a dependency node filter that logically ANDs together the two specified dependency node filters.
49 *
50 * @param filter1 the first dependency node filter to logically AND together
51 * @param filter2 the second dependency node filter to logically AND together
52 */
53 public AndDependencyNodeFilter( DependencyNodeFilter filter1, DependencyNodeFilter filter2 )
54 {
55 this( Arrays.asList( filter1, filter2 ) );
56 }
57
58 /**
59 * Creates a dependency node filter that logically ANDs together the specified dependency node filters.
60 *
61 * @param filters the list of dependency node filters to logically AND together
62 */
63 public AndDependencyNodeFilter( List<DependencyNodeFilter> filters )
64 {
65 this.filters = Collections.unmodifiableList( filters );
66 }
67
68 // DependencyNodeFilter methods -------------------------------------------
69
70 /**
71 * {@inheritDoc}
72 */
73 @Override
74 public boolean accept( DependencyNode node )
75 {
76 for ( DependencyNodeFilter filter : filters )
77 {
78 if ( !filter.accept( node ) )
79 {
80 return false;
81 }
82 }
83
84 return true;
85 }
86
87 // public methods ---------------------------------------------------------
88
89 /**
90 * Gets the list of dependency node filters that this filter ANDs together.
91 *
92 * @return the dependency node filters that this filter ANDs together
93 */
94 public List<DependencyNodeFilter> getDependencyNodeFilters()
95 {
96 return filters;
97 }
98 }