1 /**
2 * This file Copyright (c) 2003-2010 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
38 /**
39 * A task that delegates to another depending on whether a specified node exists or not.
40 * @author gjoseph
41 * @version $Revision: $ ($Author: $)
42 */
43 public class NodeExistsDelegateTask extends ConditionalDelegateTask {
44 private final String workspaceName;
45 private final String pathToCheck;
46
47 public NodeExistsDelegateTask(String name, String description, String workspaceName, String pathToCheck, Task ifTrue) {
48 this(name, description, workspaceName, pathToCheck, ifTrue, null);
49 }
50
51 public NodeExistsDelegateTask(String name, String description, String workspaceName, String pathToCheck, Task ifTrue, Task ifFalse) {
52 super(name, description, ifTrue, ifFalse);
53 this.pathToCheck = pathToCheck;
54 this.workspaceName = workspaceName;
55 }
56
57 protected boolean condition(InstallContext ctx) {
58 return ctx.getHierarchyManager(workspaceName).isExist(pathToCheck);
59 }
60 }