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.shared.dependency.graph.filter;
20
21 import java.util.Arrays;
22 import java.util.Collections;
23 import java.util.List;
24
25 import org.apache.maven.shared.dependency.graph.DependencyNode;
26
27 /**
28 * A dependency node filter that logically ANDs together a number of other dependency node filters.
29 *
30 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
31 * @version $Id$
32 * @since 1.1
33 */
34 public class AndDependencyNodeFilter implements DependencyNodeFilter {
35 // fields -----------------------------------------------------------------
36
37 /**
38 * The dependency node filters that this filter ANDs together.
39 */
40 private final List<DependencyNodeFilter> filters;
41
42 // constructors -----------------------------------------------------------
43
44 /**
45 * Creates a dependency node filter that logically ANDs together the two specified dependency node filters.
46 *
47 * @param filter1 the first dependency node filter to logically AND together
48 * @param filter2 the second dependency node filter to logically AND together
49 */
50 public AndDependencyNodeFilter(DependencyNodeFilter filter1, DependencyNodeFilter filter2) {
51 this(Arrays.asList(filter1, filter2));
52 }
53
54 /**
55 * Creates a dependency node filter that logically ANDs together the specified dependency node filters.
56 *
57 * @param filters the list of dependency node filters to logically AND together
58 */
59 public AndDependencyNodeFilter(List<DependencyNodeFilter> filters) {
60 this.filters = Collections.unmodifiableList(filters);
61 }
62
63 // DependencyNodeFilter methods -------------------------------------------
64
65 /**
66 * {@inheritDoc}
67 */
68 @Override
69 public boolean accept(DependencyNode node) {
70 for (DependencyNodeFilter filter : filters) {
71 if (!filter.accept(node)) {
72 return false;
73 }
74 }
75
76 return true;
77 }
78
79 // public methods ---------------------------------------------------------
80
81 /**
82 * Gets the list of dependency node filters that this filter ANDs together.
83 *
84 * @return the dependency node filters that this filter ANDs together
85 */
86 public List<DependencyNodeFilter> getDependencyNodeFilters() {
87 return filters;
88 }
89 }