Implementation of fault tolerance functions in all algorithms.

[mapping.git] / src / and / Mapping / Simple.java

diff --git a/src/and/Mapping/Simple.java b/src/and/Mapping/Simple.java
index 8bf957a..3092a99 100644 (file)
--- a/src/and/Mapping/Simple.java
+++ b/src/and/Mapping/Simple.java
@@ -119,22 +119,49 @@ public class Simple extends Algo
 
 
        @Override
-       public GNode replaceNode(GNode replaced, ArrayList<GNode> _ag ) 
+       public GNode replaceNode(GNode _dead, ArrayList<GNode> _ag ) 
        {
-               // TODO
+               GNode ret = null ;
+               
+               if( _dead != null )
+               {
+                       int pos = 0 ;
+                       pos = mp.getIdOfAssociation( _dead ) ;
+                       
+                       if( pos == -1 )
+                       {
+                               System.err.println( "GNode "+_dead+" does not exist in the mapping!" ) ;
+                               return null ;
+                       }
+                       
+                       if( _ag.size() > 0 )
+                       {
+                               ret = _ag.get( 0 ) ;
+                               
+                               
+                       } else {
+                               System.err.println( "Not enought available nodes in gnodes to replace one !" ) ;
+                               return null ;
+                       }               
+               }
                
                /** Update in cluster the status of nodes **/
                updateGrid() ;
                
-               
-               return null ;
+               return ret ;
        }
 
 
        @Override
-       public GNode getOtherGNode( ArrayList<GNode> _ag ) {
-               // TODO Auto-generated method stub
-               return null;
+       public GNode getOtherGNode( ArrayList<GNode> _ag ) 
+       {
+               /** Returning the first node in the list **/
+               if( _ag.size() > 0 )
+               {
+                       return _ag.get( 1 ) ;
+               } 
+               
+               return null ;
        }
 }