1 /**
2 * This file Copyright (c) 2011 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.objectfactory.guice;
35
36 import javax.inject.Inject;
37 import javax.inject.Provider;
38 import javax.jcr.Node;
39 import javax.jcr.RepositoryException;
40
41 import com.google.inject.ProvisionException;
42 import info.magnolia.cms.util.ContentUtil;
43 import info.magnolia.content2bean.Content2BeanException;
44 import info.magnolia.content2bean.Content2BeanUtil;
45 import info.magnolia.context.MgnlContext;
46 import info.magnolia.objectfactory.ComponentProvider;
47
48
49 /**
50 * Guice Provider that creates an object by reading it from the repository.
51 *
52 * @param <T> type of the instance the provider provides
53 * @version $Id$
54 */
55 public class GuiceConfiguredComponentProvider<T> implements Provider<T> {
56
57 @Inject
58 private ComponentProvider componentProvider;
59 private final String workspace;
60 private final String path;
61
62 public GuiceConfiguredComponentProvider(String workspace, String path) {
63 this.path = path;
64 this.workspace = workspace;
65 }
66
67 @Override
68 public T get() {
69 final Node node;
70 try {
71 node = MgnlContext.getJCRSession(workspace).getNode(path);
72 } catch (RepositoryException e) {
73 throw new ProvisionException("Can't find the node [" + workspace + ":" + path + "] to create an instance");
74 }
75
76 try {
77 return transformNode(node);
78 } catch (Content2BeanException e) {
79 throw new ProvisionException(e.getMessage(), e);
80 }
81 }
82
83 @SuppressWarnings("unchecked")
84 protected T transformNode(Node node) throws Content2BeanException{
85 return (T) Content2BeanUtil.toBean(ContentUtil.asContent(node), true, componentProvider);
86 }
87 }