1 files changed, 61 insertions, 0 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/flowobjective/impl/composition/NextTable.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/flowobjective/impl/composition/NextTable.java
new file mode 100644
index 00000000..e2787edd
--- /dev/null
+++ b/framework/src/onos/core/net/src/main/java/org/onosproject/net/flowobjective/impl/composition/NextTable.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.flowobjective.impl.composition;
+
+import org.onosproject.net.flowobjective.NextObjective;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Provides a table to store Next.
+ */
+public class NextTable {
+
+    protected Map<Integer, NextObjective> nextMap;
+
+    public NextTable() {
+        this.nextMap = new HashMap<>();
+    }
+
+    public List<NextObjective> updateNext(NextObjective nextObjective) {
+        List<NextObjective> updates = new ArrayList<>();
+        switch (nextObjective.op()) {
+            case ADD:
+                this.nextMap.put(nextObjective.id(), nextObjective);
+                updates.add(nextObjective);
+                break;
+            case REMOVE:
+                this.nextMap.remove(nextObjective.id());
+                updates.add(nextObjective);
+                break;
+            default:
+                break;
+        }
+        return updates;
+    }
+
+    public List<NextObjective> updateNext(List<NextObjective> nextObjectives) {
+        List<NextObjective> updates = new ArrayList<>();
+        for (NextObjective nextObjective : nextObjectives) {
+            updates.addAll(this.updateNext(nextObjective));
+        }
+        return updates;
+    }
+
+}