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 * https://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
20 package org.apache.commons.exec;
21
22 import java.util.function.Consumer;
23
24 /**
25 * Interface for classes that want to be notified by Watchdog.
26 *
27 * @see org.apache.commons.exec.Watchdog
28 */
29 public interface TimeoutObserver extends Consumer<Watchdog> {
30
31 /**
32 * {@inheritDoc}
33 *
34 * @since 1.6.0
35 */
36 @Override
37 default void accept(final Watchdog w) {
38 timeoutOccured(w);
39 }
40
41 /**
42 * Called when the watchdog times out.
43 *
44 * @param w the watchdog that timed out.
45 */
46 void timeoutOccured(Watchdog w);
47 }