Rename getInstance() -> getInputData(). Override getInputData() in solution classes to return correct type instead of abstract one.

src/main/org/insa/algo/AbstractAlgorithm.java

@@ -38,7 +38,7 @@ public abstract class AbstractAlgorithm<Observer> {
     /**
      * @return Instance corresponding to this algorithm.
      */
-    public AbstractData getInstance() { return instance; }
+    public AbstractData getInputData() { return instance; }
         
     /**
      * Run the algorithm and update the current solution.

src/main/org/insa/algo/AbstractSolution.java

@@ -43,7 +43,7 @@ public abstract class AbstractSolution {
 	/**
 	 * @return Original instance for this solution.
 	 */
-	public AbstractData getInstance() { return instance; }
+	public AbstractData getInputData() { return instance; }
 	
 	/**
 	 * @return Status of this solution.

src/main/org/insa/algo/strongconnectivity/StronglyConnectedComponentsAlgorithm.java

@@ -19,8 +19,8 @@ public abstract class StronglyConnectedComponentsAlgorithm extends AbstractAlgor
 	}
 	
 	@Override
-	public StronglyConnectedComponentsData getInstance() {
+	public StronglyConnectedComponentsData getInputData() {
-		return (StronglyConnectedComponentsData)super.getInstance();
+		return (StronglyConnectedComponentsData)super.getInputData();
 	}
 
 }

src/main/org/insa/algo/strongconnectivity/StronglyConnectedComponentsSolution.java

@@ -7,22 +7,29 @@ import org.insa.graph.Node;
 
 public class StronglyConnectedComponentsSolution extends AbstractSolution {
 
-	// Components
+    // Components
-	private ArrayList<ArrayList<Node>> components;
+    private ArrayList<ArrayList<Node>> components;
 
-	protected StronglyConnectedComponentsSolution(StronglyConnectedComponentsData instance) {
+    protected StronglyConnectedComponentsSolution(StronglyConnectedComponentsData instance) {
-		super(instance);
+        super(instance);
-	}
+    }
 
-	protected StronglyConnectedComponentsSolution(StronglyConnectedComponentsData instance, 
+    protected StronglyConnectedComponentsSolution(StronglyConnectedComponentsData instance, Status status,
-					   Status status, ArrayList<ArrayList<Node>> components) {
+            ArrayList<ArrayList<Node>> components) {
-		super(instance, status);
+        super(instance, status);
-		this.components = components;
+        this.components = components;
-	}
+    }
 
-	/**
+    @Override
-	 * @return Components of the solution, if any.
+    public StronglyConnectedComponentsData getInputData() {
-	 */
+        return (StronglyConnectedComponentsData) super.getInputData();
-	public ArrayList<ArrayList<Node>> getComponents() { return components; }
+    }
+
+    /**
+     * @return Components of the solution, if any.
+     */
+    public ArrayList<ArrayList<Node>> getComponents() {
+        return components;
+    }
 
 }

src/main/org/insa/algo/strongconnectivity/TarjanAlgorithm.java

@@ -114,7 +114,7 @@ public class TarjanAlgorithm extends StronglyConnectedComponentsAlgorithm {
 
 	@Override
 	protected StronglyConnectedComponentsSolution doRun() {
-		Graph graph = getInstance().getGraph();
+		Graph graph = getInputData().getGraph();
 		
 		components = new ArrayList<ArrayList<Node>>();
 		
@@ -138,7 +138,7 @@ public class TarjanAlgorithm extends StronglyConnectedComponentsAlgorithm {
 			}
 		}
 		
-		return new StronglyConnectedComponentsSolution(getInstance(), Status.OPTIMAL, components);
+		return new StronglyConnectedComponentsSolution(getInputData(), Status.OPTIMAL, components);
 	}
 
 }

src/main/org/insa/algo/weakconnectivity/WeaklyConnectedComponentsAlgorithm.java

@@ -30,8 +30,8 @@ public class WeaklyConnectedComponentsAlgorithm extends AbstractAlgorithm<Weakly
     }
 
     @Override
-    public WeaklyConnectedComponentsData getInstance() {
+    public WeaklyConnectedComponentsData getInputData() {
-        return (WeaklyConnectedComponentsData) super.getInstance();
+        return (WeaklyConnectedComponentsData) super.getInputData();
     }
 
     /**
@@ -73,13 +73,13 @@ public class WeaklyConnectedComponentsAlgorithm extends AbstractAlgorithm<Weakly
      *         graph.
      */
     protected ArrayList<HashSet<Integer>> createUndirectedGraph() {
-        int nNodes = getInstance().getGraph().getNodes().size();
+        int nNodes = getInputData().getGraph().getNodes().size();
         ArrayList<HashSet<Integer>> res = new ArrayList<HashSet<Integer>>(nNodes);
         for (int i = 0; i < nNodes; ++i) {
             res.add(new HashSet<Integer>());
         }
 
-        for (Node node: getInstance().getGraph().getNodes()) {
+        for (Node node: getInputData().getGraph().getNodes()) {
             for (Arc arc: node.getSuccessors()) {
                 res.get(node.getId()).add(arc.getDestination().getId());
                 if (arc.getRoadInformation().isOneWay()) {
@@ -101,7 +101,7 @@ public class WeaklyConnectedComponentsAlgorithm extends AbstractAlgorithm<Weakly
      * @return
      */
     protected ArrayList<Node> bfs(ArrayList<HashSet<Integer>> ugraph, boolean[] marked, int cur) {
-        List<Node> nodes = getInstance().getGraph().getNodes();
+        List<Node> nodes = getInputData().getGraph().getNodes();
         ArrayList<Node> component = new ArrayList<Node>();
 
         // Using a queue because we are doing a BFS
@@ -137,7 +137,7 @@ public class WeaklyConnectedComponentsAlgorithm extends AbstractAlgorithm<Weakly
     @Override
     protected WeaklyConnectedComponentsSolution doRun() {
 
-        Graph graph = getInstance().getGraph();
+        Graph graph = getInputData().getGraph();
         ArrayList<HashSet<Integer>> ugraph = createUndirectedGraph();
         boolean[] marked = new boolean[graph.getNodes().size()];
         Arrays.fill(marked, false);
@@ -155,7 +155,7 @@ public class WeaklyConnectedComponentsAlgorithm extends AbstractAlgorithm<Weakly
                 ;
         }
 
-        return new WeaklyConnectedComponentsSolution(getInstance(), Status.OPTIMAL, components);
+        return new WeaklyConnectedComponentsSolution(getInputData(), Status.OPTIMAL, components);
     }
 
 }

src/main/org/insa/algo/weakconnectivity/WeaklyConnectedComponentsSolution.java

@@ -7,22 +7,29 @@ import org.insa.graph.Node;
 
 public class WeaklyConnectedComponentsSolution extends AbstractSolution {
 
-	// Components
+    // Components
-	private ArrayList<ArrayList<Node>> components;
+    private ArrayList<ArrayList<Node>> components;
 
-	protected WeaklyConnectedComponentsSolution(WeaklyConnectedComponentsData instance) {
+    protected WeaklyConnectedComponentsSolution(WeaklyConnectedComponentsData instance) {
-		super(instance);
+        super(instance);
-	}
+    }
 
-	protected WeaklyConnectedComponentsSolution(WeaklyConnectedComponentsData instance, 
+    protected WeaklyConnectedComponentsSolution(WeaklyConnectedComponentsData instance, Status status,
-					   Status status, ArrayList<ArrayList<Node>> components) {
+            ArrayList<ArrayList<Node>> components) {
-		super(instance, status);
+        super(instance, status);
-		this.components = components;
+        this.components = components;
-	}
+    }
 
-	/**
+    @Override
-	 * @return Components of the solution, if any.
+    public WeaklyConnectedComponentsData getInputData() {
-	 */
+        return (WeaklyConnectedComponentsData) super.getInputData();
-	public ArrayList<ArrayList<Node>> getComponents() { return components; }
+    }
+
+    /**
+     * @return Components of the solution, if any.
+     */
+    public ArrayList<ArrayList<Node>> getComponents() {
+        return components;
+    }
 
 }

src/main/org/insa/graphics/ShortestPathSolutionPanel.java

@@ -70,7 +70,7 @@ public class ShortestPathSolutionPanel extends JPanel implements DrawingChangeLi
          * @return Data assocaited with this bundle.
          */
         public ShortestPathData getData() {
-            return (ShortestPathData) this.solution.getInstance();
+            return this.solution.getInputData();
         }
 
         /**