Create an ArcFilter factory.

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

@@ -0,0 +1,55 @@
+package org.insa.algo;
+
+import java.util.ArrayList;
+import java.util.EnumSet;
+import java.util.List;
+
+import org.insa.algo.AbstractInputData.ArcFilter;
+import org.insa.graph.AccessRestrictions.AccessMode;
+import org.insa.graph.AccessRestrictions.AccessRestriction;
+import org.insa.graph.Arc;
+
+public class ArcFilterFactory {
+
+    /**
+     * @return List of all arc filters in this factory.
+     */
+    public static List<ArcFilter> getAllFilters() {
+        List<ArcFilter> filters = new ArrayList<>();
+
+        // Common filters:
+
+        // 1. No filter (all arcs allowed):
+        filters.add(new ArcFilter() {
+            @Override
+            public boolean isAllowed(Arc arc) {
+                return true;
+            }
+
+            @Override
+            public String toString() {
+                return "All roads are allowed.";
+            }
+        });
+
+        // 2. Only road allowed for cars:
+        filters.add(new ArcFilter() {
+            @Override
+            public boolean isAllowed(Arc arc) {
+                return arc.getRoadInformation().getAccessRestrictions().isAllowedForAny(AccessMode.MOTORCAR,
+                        EnumSet.complementOf(EnumSet.of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));
+            }
+
+            @Override
+            public String toString() {
+                return "Only roads open for cars.";
+            }
+        });
+
+        // 3. Add your own filters here (do not forget to implement toString() to get an
+        // understandable output!):
+
+        return filters;
+    }
+
+}