Fix [ONOS-4857] and impement [ONOS-5143]
Change-Id: I7159ff9deaacaf10070e1535f4a80f2f846a5784
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/LinkCollectionIntentFlowObjectiveCompiler.java b/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/LinkCollectionIntentFlowObjectiveCompiler.java
new file mode 100644
index 0000000..7ffff6b
--- /dev/null
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/LinkCollectionIntentFlowObjectiveCompiler.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2016-present 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.intent.impl.compiler;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.SetMultimap;
+import com.google.common.collect.Sets;
+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.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.flowobjective.DefaultForwardingObjective;
+import org.onosproject.net.flowobjective.DefaultNextObjective;
+import org.onosproject.net.flowobjective.FlowObjectiveService;
+import org.onosproject.net.flowobjective.ForwardingObjective;
+import org.onosproject.net.flowobjective.NextObjective;
+import org.onosproject.net.flowobjective.Objective;
+import org.onosproject.net.intent.FlowObjectiveIntent;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentCompiler;
+import org.onosproject.net.intent.LinkCollectionIntent;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Compiler to produce flow objectives from link collections.
+ */
+@Component(immediate = true)
+public class LinkCollectionIntentFlowObjectiveCompiler
+ extends LinkCollectionCompiler<Objective>
+ implements IntentCompiler<LinkCollectionIntent> {
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected IntentConfigurableRegistrator registrator;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected CoreService coreService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected FlowObjectiveService flowObjectiveService;
+
+ private ApplicationId appId;
+
+ @Activate
+ public void activate() {
+ appId = coreService.registerApplication("org.onosproject.net.intent");
+ registrator.registerCompiler(LinkCollectionIntent.class, this, true);
+ }
+
+ @Deactivate
+ public void deactivate() {
+ registrator.unregisterCompiler(LinkCollectionIntent.class, true);
+ }
+
+ @Override
+ public List<Intent> compile(LinkCollectionIntent intent, List<Intent> installable) {
+
+ SetMultimap<DeviceId, PortNumber> inputPorts = HashMultimap.create();
+ SetMultimap<DeviceId, PortNumber> outputPorts = HashMultimap.create();
+
+ computePorts(intent, inputPorts, outputPorts);
+
+ List<Objective> objectives = new ArrayList<>();
+ List<DeviceId> devices = new ArrayList<>();
+ for (DeviceId deviceId: outputPorts.keys()) {
+ List<Objective> deviceObjectives =
+ createRules(intent,
+ deviceId,
+ inputPorts.get(deviceId),
+ outputPorts.get(deviceId));
+ deviceObjectives.forEach(objective -> {
+ objectives.add(objective);
+ devices.add(deviceId);
+ });
+ }
+ return Collections.singletonList(
+ new FlowObjectiveIntent(appId, devices, objectives, intent.resources()));
+ }
+
+ @Override
+ protected List<Objective> createRules(LinkCollectionIntent intent, DeviceId deviceId,
+ Set<PortNumber> inPorts, Set<PortNumber> outPorts) {
+
+ Set<PortNumber> ingressPorts = Sets.newHashSet();
+ Set<PortNumber> egressPorts = Sets.newHashSet();
+
+ computePorts(intent, deviceId, ingressPorts, egressPorts);
+
+ List<Objective> objectives = new ArrayList<>(inPorts.size());
+ Set<PortNumber> copyIngressPorts = ImmutableSet.copyOf(ingressPorts);
+ Set<PortNumber> copyEgressPorts = ImmutableSet.copyOf(egressPorts);
+
+ inPorts.forEach(inport -> {
+ ForwardingInstructions instructions = this.createForwardingInstructions(intent,
+ inport,
+ outPorts,
+ copyIngressPorts,
+ copyEgressPorts);
+
+ NextObjective nextObjective = DefaultNextObjective.builder()
+ .withId(flowObjectiveService.allocateNextId())
+ .addTreatment(instructions.treatment())
+ .withType(NextObjective.Type.SIMPLE)
+ .fromApp(appId)
+ .makePermanent().add();
+ objectives.add(nextObjective);
+
+ objectives.add(DefaultForwardingObjective.builder()
+ .withSelector(instructions.selector())
+ .nextStep(nextObjective.id())
+ .withPriority(intent.priority())
+ .fromApp(appId)
+ .makePermanent()
+ .withFlag(ForwardingObjective.Flag.SPECIFIC)
+ .add());
+ }
+ );
+
+ return objectives;
+ }
+
+}