Stuart McCulloch | acef948 | 2009-09-02 18:33:41 +0000 | [diff] [blame^] | 1 | package org.apache.maven.shared.dependency.tree.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.Iterator; |
| 25 | import java.util.List; |
| 26 | |
| 27 | import org.apache.maven.shared.dependency.tree.DependencyNode; |
| 28 | |
| 29 | /** |
| 30 | * A dependency node filter that logically ANDs together a number of other dependency node filters. |
| 31 | * |
| 32 | * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a> |
| 33 | * @version $Id: AndDependencyNodeFilter.java 661727 2008-05-30 14:21:49Z bentmann $ |
| 34 | * @since 1.1 |
| 35 | */ |
| 36 | public class AndDependencyNodeFilter implements DependencyNodeFilter |
| 37 | { |
| 38 | // fields ----------------------------------------------------------------- |
| 39 | |
| 40 | /** |
| 41 | * The dependency node filters that this filter ANDs together. |
| 42 | */ |
| 43 | private final List 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 |
| 51 | * the first dependency node filter to logically AND together |
| 52 | * @param filter2 |
| 53 | * the second dependency node filter to logically AND together |
| 54 | */ |
| 55 | public AndDependencyNodeFilter( DependencyNodeFilter filter1, DependencyNodeFilter filter2 ) |
| 56 | { |
| 57 | this( Arrays.asList( new DependencyNodeFilter[] { filter1, filter2 } ) ); |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Creates a dependency node filter that logically ANDs together the specified dependency node filters. |
| 62 | * |
| 63 | * @param filters |
| 64 | * the list of dependency node filters to logically AND together |
| 65 | */ |
| 66 | public AndDependencyNodeFilter( List filters ) |
| 67 | { |
| 68 | this.filters = Collections.unmodifiableList( filters ); |
| 69 | } |
| 70 | |
| 71 | // DependencyNodeFilter methods ------------------------------------------- |
| 72 | |
| 73 | /** |
| 74 | * {@inheritDoc} |
| 75 | */ |
| 76 | public boolean accept( DependencyNode node ) |
| 77 | { |
| 78 | boolean accept = true; |
| 79 | |
| 80 | for ( Iterator iterator = filters.iterator(); accept && iterator.hasNext(); ) |
| 81 | { |
| 82 | DependencyNodeFilter filter = (DependencyNodeFilter) iterator.next(); |
| 83 | |
| 84 | accept = filter.accept( node ); |
| 85 | } |
| 86 | |
| 87 | return accept; |
| 88 | } |
| 89 | |
| 90 | // public methods --------------------------------------------------------- |
| 91 | |
| 92 | /** |
| 93 | * Gets the list of dependency node filters that this filter ANDs together. |
| 94 | * |
| 95 | * @return the dependency node filters that this filter ANDs together |
| 96 | */ |
| 97 | public List getDependencyNodeFilters() |
| 98 | { |
| 99 | return filters; |
| 100 | } |
| 101 | } |