org/sonews/feed/FeedManager.java
author chris <chris@marvin>
Wed, 22 Jul 2009 14:04:05 +0200
changeset 3 2fdc9cc89502
parent 1 6fceb66e1ad7
child 22 2541bdb54cb2
permissions -rw-r--r--
sonews/1.0.0
     1 /*
     2  *   SONEWS News Server
     3  *   see AUTHORS for the list of contributors
     4  *
     5  *   This program is free software: you can redistribute it and/or modify
     6  *   it under the terms of the GNU General Public License as published by
     7  *   the Free Software Foundation, either version 3 of the License, or
     8  *   (at your option) any later version.
     9  *
    10  *   This program is distributed in the hope that it will be useful,
    11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  *   GNU General Public License for more details.
    14  *
    15  *   You should have received a copy of the GNU General Public License
    16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17  */
    18 
    19 package org.sonews.feed;
    20 
    21 import java.util.List;
    22 import org.sonews.storage.Article;
    23 import org.sonews.storage.StorageBackendException;
    24 import org.sonews.storage.StorageManager;
    25 
    26 /**
    27  * Controlls push and pull feeder.
    28  * @author Christian Lins
    29  * @since sonews/0.5.0
    30  */
    31 public final class FeedManager 
    32 {
    33 
    34   public static final int TYPE_PULL = 0;
    35   public static final int TYPE_PUSH = 1;
    36   
    37   private static PullFeeder pullFeeder = new PullFeeder();
    38   private static PushFeeder pushFeeder = new PushFeeder();
    39   
    40   /**
    41    * Reads the peer subscriptions from database and starts the appropriate
    42    * PullFeeder or PushFeeder.
    43    */
    44   public static synchronized void startFeeding()
    45     throws StorageBackendException
    46   {
    47     List<Subscription> subsPull = StorageManager.current()
    48       .getSubscriptions(TYPE_PULL);
    49     for(Subscription sub : subsPull)
    50     {
    51       pullFeeder.addSubscription(sub);
    52     }
    53     pullFeeder.start();
    54     
    55     List<Subscription> subsPush = StorageManager.current()
    56       .getSubscriptions(TYPE_PUSH);
    57     for(Subscription sub : subsPush)
    58     {
    59       pushFeeder.addSubscription(sub);
    60     }
    61     pushFeeder.start();
    62   }
    63   
    64   public static void queueForPush(Article article)
    65   {
    66     pushFeeder.queueForPush(article);
    67   }
    68   
    69   private FeedManager() {}
    70   
    71 }