Started working on the ContentRefreshOperation

- Setup a method to get all storage entries for the different content
	- Started setting up the content refresh operation functionality

src/kademlia/core/Kademlia.java

@@ -79,8 +79,8 @@ public class Kademlia
                     {
                         try
                         {
-                            /* Runs a RefreshOperation to refresh K-Buckets and stored content */
-                            new BucketRefreshOperation(server, localNode).execute();
+                            /* Runs a DHT RefreshOperation  */
+                            Kademlia.this.refresh();
                         }
                         catch (IOException e)
                         {
@@ -182,7 +182,7 @@ public class Kademlia
      */
     public void refresh() throws IOException
     {
-        new KadRefreshOperation(server, localNode).execute();
+        new KadRefreshOperation(this.server, this.localNode, this.dht).execute();
     }
 
     /**

src/kademlia/dht/DHT.java

@@ -7,6 +7,7 @@ import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.List;
 import java.util.NoSuchElementException;
 import kademlia.core.Configuration;
 import kademlia.core.GetParameter;
@@ -77,12 +78,12 @@ public class DHT
     }
 
     /**
-     * Get the List<StorageEntry> for the content if any exist,
-     * retrieve the content from the storage system and return it
+     * Get the StorageEntry for the content if any exist,
+     * retrieve the KadContent from the storage system and return it
      *
      * @param param The parameters used to filter the content needed
      *
-     * @return List<KadContent> A list with the content found on the DHT satisfying the given criteria
+     * @return KadContent A KadContent found on the DHT satisfying the given criteria
      *
      * @throws java.io.IOException
      */
@@ -142,4 +143,12 @@ public class DHT
 
         return mainStorageFolder + File.separator + folderName;
     }
+
+    /**
+     * @return A List of all StorageEntries for this node
+     */
+    public List<StorageEntry> getStorageEntries()
+    {
+        return entriesManager.getAllEntries();
+    }
 }

src/kademlia/dht/StorageEntryManager.java

@@ -99,4 +99,21 @@ public class StorageEntryManager
         }
     }
 
+    /**
+     * @return A list of all storage entries
+     */
+    public List<StorageEntry> getAllEntries()
+    {
+        List<StorageEntry> entriesRet = new ArrayList<>();
+
+        for (List<StorageEntry> entrySet : this.entries.values())
+        {
+            if (entrySet.size() > 0)
+            {
+                entriesRet.addAll(entrySet);
+            }
+        }
+
+        return entriesRet;
+    }
 }

src/kademlia/operation/BucketRefreshOperation.java

@@ -50,8 +50,7 @@ public class BucketRefreshOperation implements Operation
                 {
                     try
                     {
-                        System.out.println("Distance: " + localNode.getNodeId().getDistance(current) + " - ID: " + current);
-
+                        //System.out.println("Distance: " + localNode.getNodeId().getDistance(current) + " - ID: " + current);
                         new NodeLookupOperation(server, localNode, localNode.getNodeId()).execute();
                     }
                     catch (IOException e)

src/kademlia/operation/ContentRefreshOperation.java

@@ -1,19 +1,42 @@
 package kademlia.operation;
 
+import kademlia.core.KadServer;
+import kademlia.dht.DHT;
+import kademlia.node.Node;
+
 /**
- * Refresh the data on this node by sending the data to the K-Closest nodes to the data
+ * Refresh/Restore the data on this node by sending the data to the K-Closest nodes to the data
  *
  * @author Joshua Kissoon
  * @since 20140306
  */
-public class ContentRefreshOperation
+public class ContentRefreshOperation implements Operation
 {
 
+    private final KadServer server;
+    private final Node localNode;
+    private final DHT dht;
+
+    public ContentRefreshOperation(KadServer server, Node localNode, DHT dht)
+    {
+        this.server = server;
+        this.localNode = localNode;
+        this.dht = dht;
+    }
+
+    /**
+     * For each content stored on this DHT, distribute it to the K closest nodes
+     * Also delete the content if this node is no longer one of the K closest nodes
+     *
+     * We assume that our RoutingTable is updated, and we can get the K closest nodes from that table
+     */
+    @Override
     public void execute()
     {
+        
         /**
          * @todo Delete any content on this node that this node is not one of the K-Closest nodes to
-         * @todo Delete any expired content
          */
+
     }
 }

src/kademlia/operation/KadRefreshOperation.java

@@ -2,6 +2,7 @@ package kademlia.operation;
 
 import java.io.IOException;
 import kademlia.core.KadServer;
+import kademlia.dht.DHT;
 import kademlia.node.Node;
 
 /**
@@ -15,11 +16,13 @@ public class KadRefreshOperation implements Operation
 
     private final KadServer server;
     private final Node localNode;
+    private final DHT dht;
 
-    public KadRefreshOperation(KadServer server, Node localNode)
+    public KadRefreshOperation(KadServer server, Node localNode, DHT dht)
     {
         this.server = server;
         this.localNode = localNode;
+        this.dht = dht;
     }
 
     @Override
@@ -29,5 +32,6 @@ public class KadRefreshOperation implements Operation
         new BucketRefreshOperation(server, localNode).execute();
 
         /* After buckets have been refreshed, we refresh content */
+        new ContentRefreshOperation(server, localNode, dht).execute();
     }
 }