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 info.magnolia.repository.RepositoryConstants;
38
39 /**
40 * A task that delegates to another depending on whether a specified node exists or not.
41 */
42 public class NodeExistsDelegateTask extends ConditionalDelegateTask {
43 private final String workspaceName;
44 private final String pathToCheck;
45
46 public NodeExistsDelegateTask(String name, String pathToCheck, Task ifTrue) {
47 this(name, pathToCheck, ifTrue, null);
48 }
49
50 public NodeExistsDelegateTask(String name, String pathToCheck, Task ifTrue, Task ifFalse) {
51 this(name, String.format("Execute task [%s] if node '%s' exists or [%s] if not.",
52 ifTrue == null ? DO_NOTHING : ifTrue.getDescription(),
53 pathToCheck,
54 ifFalse == null ? DO_NOTHING : ifFalse.getDescription()),
55 RepositoryConstants.CONFIG, pathToCheck, ifTrue, ifFalse);
56 }
57
58 public NodeExistsDelegateTask(String name, String description, String workspaceName, String pathToCheck, Task ifTrue) {
59 this(name, description, workspaceName, pathToCheck, ifTrue, null);
60 }
61
62 public NodeExistsDelegateTask(String name, String description, String workspaceName, String pathToCheck, Task ifTrue, Task ifFalse) {
63 super(name, description, ifTrue, ifFalse);
64 this.pathToCheck = pathToCheck;
65 this.workspaceName = workspaceName;
66 }
67
68 @Override
69 protected boolean condition(InstallContext ctx) {
70 return ctx.getHierarchyManager(workspaceName).isExist(pathToCheck);
71 }
72 }