/* 
    P/P   *  Method: net.sourceforge.pebble.event.trackback.EmailAuthorNotificationListener__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.trackback;
    33  
    34  import net.sourceforge.pebble.domain.BlogEntry;
    35  import net.sourceforge.pebble.domain.TrackBack;
    36  
    37  import java.util.Collection;
    38  import java.util.HashSet;
    39  
    40  /**
    41   * Sends an e-mail notification to the blog entry author when new
    42   * TrackBacks are added.
    43   *
    44   * @author Simon Brown
    45   */
         /* 
    P/P   *  Method: void net.sourceforge.pebble.event.trackback.EmailAuthorNotificationListener()
          */
    46  public class EmailAuthorNotificationListener extends AbstractEmailNotificationListener {
    47  
    48    /**
    49     * Returns the collection of recipients.
    50     *
    51     * @param trackBack   the TrackBack from the event
    52   T  * @return  a Collection of e-mail addresses (Strings)
    53     */
    54    protected Collection getEmailAddresses(TrackBack trackBack) {
             /* 
    P/P       *  Method: Collection getEmailAddresses(TrackBack)
              * 
              *  Preconditions:
              *    init'ed(trackBack.blogEntry.user)
              *    trackBack != null
              *    trackBack.blogEntry != null
              *    (soft) init'ed(trackBack.blogEntry.author)
              * 
              *  Postconditions:
              *    return_value == &new HashSet(getEmailAddresses#1)
              *    trackBack.blogEntry.user != null
              *    new HashSet(getEmailAddresses#1) num objects == 1
              */
    55      BlogEntry blogEntry = trackBack.getBlogEntry();
    56      Collection<String> to = new HashSet<String>();
    57      to.add(blogEntry.getUser().getEmailAddress());
    58  
    59      return to;
    60    }
    61  
    62  }