/* 
    P/P   *  Method: net.sourceforge.pebble.event.blogentry.EmailSubscriptionListener__static_init
          */
     1  /*
     2   * Copyright (c) 2003-2006, Simon Brown
     3   * All rights reserved.
     4   *
     5   * Redistribution and use in source and binary forms, with or without
     6   * modification, are permitted provided that the following conditions are met:
     7   *
     8   *   - Redistributions of source code must retain the above copyright
     9   *     notice, this list of conditions and the following disclaimer.
    10   *
    11   *   - Redistributions in binary form must reproduce the above copyright
    12   *     notice, this list of conditions and the following disclaimer in
    13   *     the documentation and/or other materials provided with the
    14   *     distribution.
    15   *
    16   *   - Neither the name of Pebble nor the names of its contributors may
    17   *     be used to endorse or promote products derived from this software
    18   *     without specific prior written permission.
    19   *
    20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    30   * POSSIBILITY OF SUCH DAMAGE.
    31   */
    32  package net.sourceforge.pebble.event.blogentry;
    33  
    34  import net.sourceforge.pebble.api.decorator.ContentDecoratorContext;
    35  import net.sourceforge.pebble.api.event.blogentry.BlogEntryEvent;
    36  import net.sourceforge.pebble.domain.Blog;
    37  import net.sourceforge.pebble.domain.BlogEntry;
    38  import net.sourceforge.pebble.util.MailUtils;
    39  
         /* 
    P/P   *  Method: void net.sourceforge.pebble.event.blogentry.EmailSubscriptionListener()
          */
    40  import javax.mail.Session;
    41  import java.text.SimpleDateFormat;
    42  import java.util.List;
    43  
    44  /**
    45   * Sends an e-mail notification to e-mail subscribers when new blog entries
    46   * are added.
    47   *
    48   * @author Simon Brown
    49   */
    50  public class EmailSubscriptionListener extends BlogEntryListenerSupport {
    51  
    52    /** a token to be replaced when sending e-mails */
    53    private static final String EMAIL_ADDRESS_TOKEN = "EMAIL_ADDRESS";
    54  
    55    /**
    56     * Called when a blog entry has been published.
    57     *
    58     * @param event a BlogEntryEvent instance
    59     */
           /* 
    P/P     *  Method: void blogEntryPublished(BlogEntryEvent)
            * 
            *  Preconditions:
            *    event != null
            *    (soft) net.sourceforge.pebble.domain.State__static_init.new State(State__static_init#4).name != null
            *    (soft) net.sourceforge.pebble.domain.State__static_init.new State(State__static_init#5).name != null
            *    (soft) net/sourceforge/pebble/domain/BlogManager.instance != null
            *    (soft) init'ed(net/sourceforge/pebble/domain/BlogManager.instance.multiBlog)
            * 
            *  Presumptions:
            *    blogEntry.blog@61 != null
            *    blogEntry.categories@61 != null
            *    blogEntry.comments@61 != null
            *    blogEntry.date@61 != null
            *    blogEntry.state@61 != null
            *    ...
            */
    60    public void blogEntryPublished(BlogEntryEvent event) {
    61      BlogEntry blogEntry = event.getBlogEntry();
    62      sendNotification((BlogEntry)blogEntry.clone());
    63    }
    64  
    65    private void sendNotification(BlogEntry blogEntry) {
    66      Blog blog = blogEntry.getBlog();
    67  
    68      // first of all decorate the blog entry, as if it was being rendered
    69      // via a HTML page or XML feed
    70      ContentDecoratorContext context = new ContentDecoratorContext();
    71      context.setView(ContentDecoratorContext.DETAIL_VIEW);
    72      context.setMedia(ContentDecoratorContext.EMAIL);
    73      blog.getContentDecoratorChain().decorate(context, blogEntry);
    74  
    75      SimpleDateFormat sdf = new SimpleDateFormat("dd MMM yyyy HH:mm:ss z");
    76      sdf.setTimeZone(blog.getTimeZone());
    77  
    78      String subject = "[Blog entry] " + blogEntry.getTitle();
    79  
+   80      String message = "Blog entry posted by " + (blogEntry.getUser() != null ? blogEntry.getUser().getName() : blogEntry.getAuthor()) + " on " + sdf.format(blogEntry.getDate());
    81      message += "\n<br>";
    82      if (blogEntry.getExcerpt() != null && blogEntry.getExcerpt().trim().length() > 0) {
    83        message += blogEntry.getExcerpt();
    84      } else {
    85        message += blogEntry.getBody();
    86      }
    87      message += "\n<br>";
    88      message += "<a href=\"" + blogEntry.getLocalPermalink() + "\">Permalink</a>";
    89  
    90      message += " | ";
    91      message += "<a href=\"" + blog.getUrl() + "unsubscribe.action?email=" + EMAIL_ADDRESS_TOKEN + "\">Opt-out</a>";
    92  
    93      List<String> to = blog.getEmailSubscriptionList().getEmailAddresses();
    94  
    95      // now send personalized e-mails to the blog owner and everybody
    96      // that left a comment specifying their e-mail address
    97      try {
               /* 
    P/P         *  Method: void sendNotification(BlogEntry)
                * 
                *  Preconditions:
                *    blogEntry != null
                *    blogEntry.blog != null
                *    blogEntry.blog.decoratorChain != null
                *    blogEntry.blog.decoratorChain.decorators != null
                *    blogEntry.blog.emailSubscriptionList != null
                *    init'ed(blogEntry.blog.emailSubscriptionList.emailAddresses)
                *    init'ed(blogEntry.date)
                *    init'ed(blogEntry.excerpt)
                *    init'ed(blogEntry.title)
                *    init'ed(blogEntry.permalink)
                *    ...
                * 
                *  Postconditions:
                *    init'ed(blogEntry.permalink)
                *    init'ed(blogEntry.user)
                * 
                *  Test Vectors:
                *    blogEntry.excerpt: Addr_Set{null}, Inverse{null}
                *    java.lang.String:length(...)@82: {0}, {1..232-1}
                */
    98        Session session = MailUtils.createSession();
    99        for (String emailAddress : to) {
   100          // customize the opt-out link and send the message
   101          MailUtils.sendMail(session, blog, emailAddress, subject,
   102              message.replaceAll(EMAIL_ADDRESS_TOKEN, emailAddress));
   103        }
   104      } catch (Exception e) {
   105          e.printStackTrace();
   106      } catch (NoClassDefFoundError e) {
   107          // most likely: JavaMail is not in classpath
   108          e.printStackTrace();
   109      }
   110    }
   111  
   112  }