1 /*
2 * #%L
3 * wcm.io
4 * %%
5 * Copyright (C) 2014 wcm.io
6 * %%
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * #L%
19 */
20 package io.wcm.handler.url.suffix.impl;
21
22 import java.util.function.Predicate;
23
24 /**
25 * Contains static methods that combine filters with logical operations
26 */
27 public final class FilterOperators {
28
29 private FilterOperators() {
30 // utility methods only
31 }
32
33 /**
34 * @return a filter that includes those elements that are included by *both* specified filters
35 */
36 public static <T> Predicate<T> and(final Predicate<T> filter1, final Predicate<T> filter2) {
37 return element -> filter1.test(element) && filter2.test(element);
38 }
39
40 /**
41 * @return a filter that includes those elements that are included by *one* of the specified filters
42 */
43 public static <T> Predicate<T> or(final Predicate<T> filter1, final Predicate<T> filter2) {
44 return element -> filter1.test(element) || filter2.test(element);
45 }
46
47 }