Flow Objective implementation
Provides an abstraction which isolates the application from any pipeline
knowledge. By using the provided objectives applications can express
their forwarding desires in a pipeline agnostic way. The objectives
are then consumed by a driver for the specific device who converts them
into the appropriate pipeline coherent flows.
Change-Id: I74a68b4971c367c0cd5b7de9d877abdd117afa98
diff --git a/core/store/dist/src/main/java/org/onosproject/store/flowobjective/impl/DistributedFlowObjectiveStore.java b/core/store/dist/src/main/java/org/onosproject/store/flowobjective/impl/DistributedFlowObjectiveStore.java
new file mode 100644
index 0000000..94d72ec
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onosproject/store/flowobjective/impl/DistributedFlowObjectiveStore.java
@@ -0,0 +1,89 @@
+/*
+ * 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.store.flowobjective.impl;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.net.behaviour.DefaultNextGroup;
+import org.onosproject.net.behaviour.NextGroup;
+import org.onosproject.net.flowobjective.FlowObjectiveStore;
+import org.onosproject.net.flowobjective.FlowObjectiveStoreDelegate;
+import org.onosproject.net.flowobjective.ObjectiveEvent;
+import org.onosproject.store.AbstractStore;
+import org.onosproject.store.service.ConsistentMap;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.onosproject.store.service.Versioned;
+import org.slf4j.Logger;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Manages the inventory of created next groups.
+ */
+@Component(immediate = true, enabled = true)
+@Service
+public class DistributedFlowObjectiveStore
+ extends AbstractStore<ObjectiveEvent, FlowObjectiveStoreDelegate>
+ implements FlowObjectiveStore {
+
+ private final Logger log = getLogger(getClass());
+
+ private ConsistentMap<Integer, byte[]> nextGroups;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected StorageService storageService;
+
+ @Activate
+ public void activate() {
+ nextGroups = storageService.<Integer, byte[]>consistentMapBuilder()
+ .withName("flowobjective-groups")
+ .withSerializer(Serializer.using(
+ new KryoNamespace.Builder()
+ .register(byte[].class)
+ .build()))
+ .build();
+
+ log.info("Started");
+ }
+
+
+ @Deactivate
+ public void deactivate() {
+ log.info("Stopped");
+ }
+
+
+ @Override
+ public void putNextGroup(Integer nextId, NextGroup group) {
+ nextGroups.putIfAbsent(nextId, group.data());
+ notifyDelegate(new ObjectiveEvent(ObjectiveEvent.Type.ADD, nextId));
+ }
+
+ @Override
+ public NextGroup getNextGroup(Integer nextId) {
+ Versioned<byte[]> versionGroup = nextGroups.get(nextId);
+ if (versionGroup != null) {
+ return new DefaultNextGroup(versionGroup.value());
+ }
+ return null;
+ }
+}