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 }