/* 
    P/P   *  Method: org.apache.roller.weblogger.ui.struts2.ajax.CommentDataServlet__static_init
          */
     1  /*
     2   * Licensed to the Apache Software Foundation (ASF) under one or more
     3   *  contributor license agreements.  The ASF licenses this file to You
     4   * under the Apache License, Version 2.0 (the "License"); you may not
     5   * use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.  For additional information regarding
    15   * copyright in this work, please see the NOTICE file in the top level
    16   * directory of this distribution.
    17   */
    18  
    19  package org.apache.roller.weblogger.ui.struts2.ajax;
    20  
    21  import java.io.IOException;
    22  import javax.servlet.ServletException;
    23  import javax.servlet.http.HttpServlet;
    24  import javax.servlet.http.HttpServletRequest;
    25  import javax.servlet.http.HttpServletResponse;
    26  import org.apache.commons.lang.StringEscapeUtils;
    27  import org.apache.commons.lang.WordUtils;
    28  import org.apache.roller.weblogger.business.Weblogger;
    29  import org.apache.roller.weblogger.business.WebloggerFactory;
    30  import org.apache.roller.weblogger.business.WeblogManager;
    31  import org.apache.roller.weblogger.pojos.WeblogEntryComment;
    32  import org.apache.roller.weblogger.util.Utilities;
    33  
    34  
    35  /**
    36   * Return comment id and content in JavaScript Object Notation (JSON) format.
    37   * For example comment with id "3454545346" and content "hi there" will be
    38   * represented as: {id : "3454545346", content : "hi there"}
    39   */
         /* 
    P/P   *  Method: void org.apache.roller.weblogger.ui.struts2.ajax.CommentDataServlet()
          */
    40  public class CommentDataServlet extends HttpServlet {
    41      
    42      public void doGet(HttpServletRequest request, 
    43                        HttpServletResponse response)
    44              throws ServletException, IOException {
    45          
                 /* 
    P/P           *  Method: void doGet(HttpServletRequest, HttpServletResponse)
                  * 
                  *  Preconditions:
                  *    request != null
                  *    response != null
                  * 
                  *  Presumptions:
                  *    javax.servlet.http.HttpServletResponse:getWriter(...)@55 != null
                  *    javax.servlet.http.HttpServletResponse:getWriter(...)@57 != null
                  *    javax.servlet.http.HttpServletResponse:getWriter(...)@58 != null
                  *    org.apache.roller.weblogger.business.WeblogManager:getComment(...)@49 != null
                  *    org.apache.roller.weblogger.business.Weblogger:getWeblogManager(...)@48 != null
                  *    ...
                  */
    46          Weblogger roller = WebloggerFactory.getWeblogger();
    47          try {
    48              WeblogManager wmgr = roller.getWeblogManager();
    49              WeblogEntryComment c = wmgr.getComment(request.getParameter("id"));
    50              String content = Utilities.escapeHTML(c.getContent());
    51              content = WordUtils.wrap(content, 72);
    52              content = StringEscapeUtils.escapeJavaScript(content);
    53              String json = "{ id: \"" + c.getId() + "\"," + "content: \"" + content + "\" }";
    54              response.setContentType("text/html; charset=utf-8");
    55              response.getWriter().print(json);
    56              response.flushBuffer();
    57              response.getWriter().flush();
    58              response.getWriter().close();
    59          } catch (Exception e) {
    60              throw new ServletException(e.getMessage());
    61          }
    62      }
    63      
    64  }