3c43593b09d5b5111f4548b37a046944e630d63a
[Sone.git] / GetReplyAjaxPage.java
1 /*
2  * Sone - GetReplyAjaxPage.java - Copyright © 2010 David Roden
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (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 General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
17
18 package net.pterodactylus.sone.web.ajax;
19
20 import java.io.StringWriter;
21
22 import net.pterodactylus.sone.data.Reply;
23 import net.pterodactylus.sone.web.WebInterface;
24 import net.pterodactylus.util.io.Closer;
25 import net.pterodactylus.util.json.JsonObject;
26 import net.pterodactylus.util.template.Template;
27 import net.pterodactylus.util.template.TemplateException;
28
29 /**
30  * This AJAX page returns the details of a reply.
31  *
32  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
33  */
34 public class GetReplyAjaxPage extends JsonPage {
35
36         /** The template to render. */
37         private final Template replyTemplate;
38
39         /**
40          * Creates a new “get reply” page.
41          *
42          * @param webInterface
43          *            The Sone web interface
44          * @param replyTemplate
45          *            The template to render
46          */
47         public GetReplyAjaxPage(WebInterface webInterface, Template replyTemplate) {
48                 super("ajax/getReply.ajax", webInterface);
49                 this.replyTemplate = replyTemplate;
50         }
51
52         //
53         // JSONPAGE METHODS
54         //
55
56         /**
57          * {@inheritDoc}
58          */
59         @Override
60         protected JsonObject createJsonObject(Request request) {
61                 String replyId = request.getHttpRequest().getParam("reply");
62                 Reply reply = webInterface.getCore().getReply(replyId);
63                 if ((reply == null) || (reply.getSone() == null)) {
64                         return createErrorJsonObject("invalid-reply-id");
65                 }
66                 replyTemplate.set("currentSone", getCurrentSone(request.getToadletContext()));
67                 return createSuccessJsonObject().put("reply", createJsonReply(reply));
68         }
69
70         /**
71          * {@inheritDoc}
72          */
73         @Override
74         protected boolean needsFormPassword() {
75                 return false;
76         }
77
78         //
79         // PRIVATE METHODS
80         //
81
82         /**
83          * Creates a JSON representation of the given reply.
84          *
85          * @param reply
86          *            The reply to convert
87          * @return The JSON representation of the reply
88          */
89         private JsonObject createJsonReply(Reply reply) {
90                 JsonObject jsonReply = new JsonObject();
91                 jsonReply.put("id", reply.getId());
92                 jsonReply.put("postId", reply.getPost().getId());
93                 jsonReply.put("soneId", reply.getSone().getId());
94                 jsonReply.put("time", reply.getTime());
95                 replyTemplate.set("reply", reply);
96                 StringWriter stringWriter = new StringWriter();
97                 try {
98                         replyTemplate.render(stringWriter);
99                 } catch (TemplateException te1) {
100                         /* TODO - shouldn’t happen. */
101                 } finally {
102                         Closer.close(stringWriter);
103                 }
104                 return jsonReply.put("html", stringWriter.toString());
105         }
106
107 }