1 /**
2 * This file Copyright (c) 2003-2015 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.module.delta;
35
36 import info.magnolia.module.InstallContext;
37 import org.apache.commons.lang3.ArrayUtils;
38
39 import java.util.Arrays;
40
41 /**
42 * A task that simply delegates to an array of other tasks.
43 */
44 public class ArrayDelegateTask implements Task {
45 private String name;
46 private String description;
47 private Task[] tasks;
48
49 public ArrayDelegateTask(String name) {
50 this(name, (String) null);
51 }
52
53 public ArrayDelegateTask(String name, String description) {
54 this(name, description, new Task[0]);
55 }
56
57 public ArrayDelegateTask(String name, Task... tasks) {
58 this(name, null, tasks);
59 }
60
61 public ArrayDelegateTask(String name, String description, Task... tasks) {
62 this.name = name;
63 this.description = description;
64 this.tasks = tasks;
65 }
66
67 @Override
68 public String getName() {
69 return name;
70 }
71
72 /**
73 * Tasks are meant to be immutable. Avoid this if possible.
74 */
75 public void addTask(Task task) {
76 this.tasks = (Task[]) ArrayUtils.add(tasks, task);
77 }
78
79 @Override
80 public String getDescription() {
81 if (description != null) {
82 return description;
83 }
84 final StringBuffer buf = new StringBuffer();
85 for (int i = 0; i < tasks.length; i++) {
86 if (i > 0) {
87 buf.append(" "); // TODO : line break ?
88 }
89 buf.append(tasks[i].getDescription());
90 }
91 return buf.toString();
92 }
93
94 @Override
95 public void execute(InstallContext ctx) throws TaskExecutionException {
96 for (Task task : tasks) {
97 task.execute(ctx);
98 }
99 }
100
101 @Override
102 public String toString() {
103 return Arrays.toString(tasks);
104 }
105 }