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[jjobs-war.git] / src / java / org / mxchange / jjobs / beans / features / JobsFeatureWebApplicationBean.java
1 /*
2  * Copyright (C) 2016 Roland Häder
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU Affero General Public License as
6  * published by the Free Software Foundation, either version 3 of the
7  * License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU Affero General Public License for more details.
13  *
14  * You should have received a copy of the GNU Affero General Public License
15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
17 package org.mxchange.jjobs.beans.features;
18
19 import javax.annotation.PostConstruct;
20 import javax.enterprise.context.ApplicationScoped;
21 import javax.inject.Named;
22 import org.mxchange.jjobs.beans.BaseJobsController;
23
24 /**
25  * A feature bean
26  * <p>
27  * @author Roland Häder<roland@mxchange.org>
28  */
29 @Named ("featureController")
30 @ApplicationScoped
31 public class JobsFeatureWebApplicationBean extends BaseJobsController implements JobsFeaturesWebApplicationController {
32
33         /**
34          * Serial number
35          */
36         private static final long serialVersionUID = 64_237_512_690_168_674L;
37
38         /**
39          * Default constructor
40          */
41         public JobsFeatureWebApplicationBean () {
42         }
43
44         /**
45          * Post-construction method
46          */
47         @PostConstruct
48         public void init () {
49         }
50
51         @Override
52         public boolean isFeatureEnabled (final String feature) {
53                 // The parameter must be set
54                 if (null == feature) {
55                         // Throw NPE
56                         throw new NullPointerException("feature is null"); //NOI18N
57                 } else if (feature.isEmpty()) {
58                         // Is empty
59                         throw new IllegalArgumentException("feature is empty"); //NOI18N
60                 }
61
62                 // Default is not enabled
63                 boolean isEnabled = false;
64
65                 // Try it as an NPE may come
66                 try {
67                         // Get value from property
68                         String contextParameter = this.getStringContextParameter(String.format("is_feature_%s_enabled", feature)); //NOI18N
69
70                         // Is it set?
71                         isEnabled = (Boolean.parseBoolean(contextParameter) == Boolean.TRUE);
72                 } catch (final NullPointerException ex) {
73                         // Ignored
74                 }
75
76                 // Return value
77                 return isEnabled;
78         }
79
80 }