1 files changed, 87 insertions, 0 deletions
diff --git a/core/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/slitopologyutils/graph/DefaultPath.java b/core/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/slitopologyutils/graph/DefaultPath.java
new file mode 100644
index 000000000..9ef00b835
--- /dev/null
+++ b/core/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/slitopologyutils/graph/DefaultPath.java
@@ -0,0 +1,87 @@
+package org.onap.ccsdk.sli.core.slipluginutils.slitopologyutils.graph;
+
+import com.google.common.collect.ImmutableList;
+
+import java.util.List;
+import java.util.Objects;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Simple concrete implementation of a directed graph path.
+ */
+public class DefaultPath<V extends Vertex, E extends Edge<V>> implements Path<V, E> {
+
+    private final V src;
+    private final V dst;
+    private final List<E> edges;
+    private Weight cost;
+
+    /**
+     * Creates a new path from the specified list of edges and cost.
+     *
+     * @param edges list of path edges
+     * @param cost  path cost as a weight object
+     */
+    public DefaultPath(List<E> edges, Weight cost) {
+        checkNotNull(edges, "Edges list must not be null");
+        checkArgument(!edges.isEmpty(), "There must be at least one edge");
+        this.edges = ImmutableList.copyOf(edges);
+        this.src = edges.get(0).src();
+        this.dst = edges.get(edges.size() - 1).dst();
+        this.cost = cost;
+    }
+
+    @Override
+    public V src() {
+        return src;
+    }
+
+    @Override
+    public V dst() {
+        return dst;
+    }
+
+    @Override
+    public Weight cost() {
+        return cost;
+    }
+
+    @Override
+    public List<E> edges() {
+        return edges;
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(this)
+                .add("src", src)
+                .add("dst", dst)
+                .add("cost", cost)
+                .add("edges", edges)
+                .toString();
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(src, dst, edges, cost);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof DefaultPath) {
+            final DefaultPath other = (DefaultPath) obj;
+            return Objects.equals(this.src, other.src) &&
+                    Objects.equals(this.dst, other.dst) &&
+                    Objects.equals(this.cost, other.cost) &&
+                    Objects.equals(this.edges, other.edges);
+        }
+        return false;
+    }
+
+}