1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache license, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the license for the specific language governing permissions and
15 * limitations under the license.
16 */
17 package org.apache.logging.log4j.core.appender.rolling.action;
18
19 import java.io.IOException;
20 import java.util.Arrays;
21 import java.util.List;
22
23
24 /**
25 * A group of Actions to be executed in sequence.
26 */
27 public class CompositeAction extends AbstractAction {
28 /**
29 * Actions to perform.
30 */
31 private final Action[] actions;
32
33 /**
34 * Stop on error.
35 */
36 private final boolean stopOnError;
37
38 /**
39 * Construct a new composite action.
40 *
41 * @param actions list of actions, may not be null.
42 * @param stopOnError if true, stop on the first false return value or exception.
43 */
44 public CompositeAction(final List<Action> actions,
45 final boolean stopOnError) {
46 this.actions = new Action[actions.size()];
47 actions.toArray(this.actions);
48 this.stopOnError = stopOnError;
49 }
50
51 /**
52 * {@inheritDoc}
53 */
54 @Override
55 public void run() {
56 try {
57 execute();
58 } catch (final IOException ex) {
59 LOGGER.warn("Exception during file rollover.", ex);
60 }
61 }
62
63 /**
64 * Execute sequence of actions.
65 *
66 * @return true if all actions were successful.
67 * @throws IOException on IO error.
68 */
69 @Override
70 public boolean execute() throws IOException {
71 if (stopOnError) {
72 for (final Action action : actions) {
73 if (!action.execute()) {
74 return false;
75 }
76 }
77
78 return true;
79 }
80 boolean status = true;
81 IOException exception = null;
82
83 for (final Action action : actions) {
84 try {
85 status &= action.execute();
86 } catch (final IOException ex) {
87 status = false;
88
89 if (exception == null) {
90 exception = ex;
91 }
92 }
93 }
94
95 if (exception != null) {
96 throw exception;
97 }
98
99 return status;
100 }
101
102 @Override
103 public String toString() {
104 return CompositeAction.class.getSimpleName() + Arrays.toString(actions);
105 }
106 }