Coverage Report - org.mule.module.rss.routing.EntryLastUpdatedFilter
 
Classes in this File Line Coverage Branch Coverage Complexity
EntryLastUpdatedFilter
0%
0/33
0%
0/16
2.625
 
 1  
 /*
 2  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 3  
  * The software in this package is published under the terms of the CPAL v1.0
 4  
  * license, a copy of which has been included with this distribution in the
 5  
  * LICENSE.txt file.
 6  
  */
 7  
 package org.mule.module.rss.routing;
 8  
 
 9  
 import org.mule.api.MuleMessage;
 10  
 import org.mule.api.MuleRuntimeException;
 11  
 import org.mule.api.routing.filter.Filter;
 12  
 import org.mule.api.transformer.TransformerException;
 13  
 import org.mule.config.i18n.CoreMessages;
 14  
 import org.mule.transformer.types.DataTypeFactory;
 15  
 
 16  
 import com.sun.syndication.feed.synd.SyndEntry;
 17  
 
 18  
 import java.util.Date;
 19  
 
 20  
 import org.apache.commons.logging.Log;
 21  
 import org.apache.commons.logging.LogFactory;
 22  
 
 23  
 /**
 24  
  * Will filter a feed who's update date has changed since the last time it was read.
 25  
  * Some feeds to no update this value so {@link #setAcceptWithoutUpdateDate(boolean)}
 26  
  * can be set to always consume the feed.
 27  
  */
 28  
 public class EntryLastUpdatedFilter implements Filter
 29  
 {
 30  
     /**
 31  
      * logger used by this class
 32  
      */
 33  0
     private final transient Log logger = LogFactory.getLog(EntryLastUpdatedFilter.class);
 34  
 
 35  
     private Date lastUpdate;
 36  
 
 37  0
     private boolean acceptWithoutUpdateDate = true;
 38  
 
 39  
     public EntryLastUpdatedFilter()
 40  0
     {
 41  
         //For Spring Xml
 42  0
     }
 43  
 
 44  
     public EntryLastUpdatedFilter(Date lastUpdate)
 45  0
     {
 46  0
         this.lastUpdate = lastUpdate;
 47  0
     }
 48  
 
 49  
     public boolean accept(MuleMessage message)
 50  
     {
 51  0
         SyndEntry feed = transformToSyndEntry(message);
 52  
 
 53  0
         Date updated = feed.getPublishedDate();
 54  0
         if (updated == null)
 55  
         {
 56  0
             if (isAcceptWithoutUpdateDate())
 57  
             {
 58  0
                 if (logger.isDebugEnabled())
 59  
                 {
 60  0
                     logger.debug("Feed does not have a last updated or published date set, assuming the feed should be processed");
 61  
                 }
 62  0
                 return true;
 63  
             }
 64  
             else
 65  
             {
 66  0
                 if (logger.isWarnEnabled())
 67  
                 {
 68  0
                     logger.warn("Feed does not have a last updated or published date set, not consuming the feed because 'acceptWithoutUpdateDate' is false");
 69  
                 }
 70  0
                 return false;
 71  
             }
 72  
         }
 73  
 
 74  0
         if (lastUpdate != null)
 75  
         {
 76  0
             if (lastUpdate.after(updated) || lastUpdate.equals(updated))
 77  
             {
 78  0
                 if (logger.isDebugEnabled())
 79  
                 {
 80  0
                     logger.debug("Feed update is not newer than the last update, not processing");
 81  
                 }
 82  0
                 return false;
 83  
             }
 84  
         }
 85  
 
 86  0
         lastUpdate = updated;
 87  0
         return true;
 88  
     }
 89  
 
 90  
     protected SyndEntry transformToSyndEntry(MuleMessage message)
 91  
     {
 92  
         try
 93  
         {
 94  0
             return message.getPayload(DataTypeFactory.create(SyndEntry.class));
 95  
         }
 96  0
         catch (TransformerException e)
 97  
         {
 98  0
             throw new MuleRuntimeException(CoreMessages.failedToReadPayload(), e);
 99  
         }
 100  
     }
 101  
 
 102  
     public boolean isAcceptWithoutUpdateDate()
 103  
     {
 104  0
         return acceptWithoutUpdateDate;
 105  
     }
 106  
 
 107  
     public void setAcceptWithoutUpdateDate(boolean acceptWithoutUpdateDate)
 108  
     {
 109  0
         this.acceptWithoutUpdateDate = acceptWithoutUpdateDate;
 110  0
     }
 111  
 
 112  
     public Date getLastUpdate()
 113  
     {
 114  0
         return lastUpdate;
 115  
     }
 116  
 
 117  
     public void setLastUpdate(Date lastUpdate)
 118  
     {
 119  0
         this.lastUpdate = lastUpdate;
 120  0
     }
 121  
 }