Move IntentCompilers to the dedicated package
Change-Id: I9ec09e5e5fce45acfc6417dd640f57fd659f7f1f
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/installer/LinkCollectionIntentInstaller.java b/core/net/src/main/java/org/onosproject/net/intent/impl/installer/LinkCollectionIntentInstaller.java
new file mode 100644
index 0000000..54ff5fc
--- /dev/null
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/installer/LinkCollectionIntentInstaller.java
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2014 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.installer;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.common.collect.SetMultimap;
+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.core.DefaultGroupId;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Link;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.flow.DefaultFlowRule;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.FlowRuleOperation;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.intent.IntentExtensionService;
+import org.onosproject.net.intent.IntentInstaller;
+import org.onosproject.net.intent.LinkCollectionIntent;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Installer for {@link org.onosproject.net.intent.LinkCollectionIntent} path
+ * segment intents.
+ */
+@Component(immediate = true)
+public class LinkCollectionIntentInstaller
+ implements IntentInstaller<LinkCollectionIntent> {
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected IntentExtensionService intentManager;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected CoreService coreService;
+
+ private ApplicationId appId;
+
+ @Activate
+ public void activate() {
+ appId = coreService.registerApplication("org.onosproject.net.intent");
+ intentManager.registerInstaller(LinkCollectionIntent.class, this);
+ }
+
+ @Deactivate
+ public void deactivate() {
+ intentManager.unregisterInstaller(LinkCollectionIntent.class);
+ }
+
+ @Override
+ public List<Collection<FlowRuleOperation>> install(LinkCollectionIntent intent) {
+ return generateBatchOperations(intent, FlowRuleOperation.Type.ADD);
+ }
+
+ @Override
+ public List<Collection<FlowRuleOperation>> uninstall(LinkCollectionIntent intent) {
+ return generateBatchOperations(intent, FlowRuleOperation.Type.REMOVE);
+ }
+
+ private List<Collection<FlowRuleOperation>> generateBatchOperations(
+ LinkCollectionIntent intent, FlowRuleOperation.Type operation) {
+
+ //TODO do we need a set here?
+ SetMultimap<DeviceId, PortNumber> inputPorts = HashMultimap.create();
+ SetMultimap<DeviceId, PortNumber> outputPorts = HashMultimap.create();
+
+ for (Link link : intent.links()) {
+ inputPorts.put(link.dst().deviceId(), link.dst().port());
+ outputPorts.put(link.src().deviceId(), link.src().port());
+ }
+
+ for (ConnectPoint ingressPoint : intent.ingressPoints()) {
+ inputPorts.put(ingressPoint.deviceId(), ingressPoint.port());
+ }
+
+ for (ConnectPoint egressPoint : intent.egressPoints()) {
+ outputPorts.put(egressPoint.deviceId(), egressPoint.port());
+ }
+
+ List<FlowRuleOperation> rules = Lists.newArrayList();
+ outputPorts.keys().stream()
+ .map(deviceId -> createBatchEntries(operation,
+ intent, deviceId,
+ inputPorts.get(deviceId),
+ outputPorts.get(deviceId)))
+ .forEach(rules::addAll);
+
+ return Lists.newArrayList(ImmutableSet.of(rules));
+ }
+
+ @Override
+ public List<Collection<FlowRuleOperation>> replace(LinkCollectionIntent oldIntent,
+ LinkCollectionIntent newIntent) {
+ // FIXME: implement this in a more intelligent/less brute force way
+ List<Collection<FlowRuleOperation>> batches = Lists.newArrayList();
+ batches.addAll(uninstall(oldIntent));
+ batches.addAll(install(newIntent));
+ return batches;
+ }
+
+ /**
+ * Creates a collection of FlowRuleOperation based on the provided
+ * parameters.
+ *
+ * @param operation the FlowRuleOperation type to use
+ * @param intent the link collection intent
+ * @param deviceId the device ID for the flow rule
+ * @param inPorts the logical input ports of the flow rule
+ * @param outPorts the set of output ports for the flow rule
+ * @return a collection with the new flow rule batch entries
+ */
+ private Collection<FlowRuleOperation> createBatchEntries(
+ FlowRuleOperation.Type operation,
+ LinkCollectionIntent intent,
+ DeviceId deviceId,
+ Set<PortNumber> inPorts,
+ Set<PortNumber> outPorts) {
+ Collection<FlowRuleOperation> result = Lists.newLinkedList();
+ Set<PortNumber> ingressPorts = new HashSet<PortNumber>();
+
+ //
+ // Collect all ingress ports for this device.
+ // The intent treatment is applied only on those ports.
+ //
+ for (ConnectPoint cp : intent.ingressPoints()) {
+ if (cp.deviceId().equals(deviceId)) {
+ ingressPorts.add(cp.port());
+ }
+ }
+
+ //
+ // Create two treatments: one for setting the output ports,
+ // and a second one that applies the intent treatment and sets the
+ // output ports.
+ // NOTE: The second one is created only if there are ingress ports.
+ //
+ TrafficTreatment.Builder defaultTreatmentBuilder =
+ DefaultTrafficTreatment.builder();
+ for (PortNumber outPort : outPorts) {
+ defaultTreatmentBuilder.setOutput(outPort);
+ }
+ TrafficTreatment defaultTreatment = defaultTreatmentBuilder.build();
+ TrafficTreatment intentTreatment = null;
+ if (!ingressPorts.isEmpty()) {
+ TrafficTreatment.Builder intentTreatmentBuilder =
+ DefaultTrafficTreatment.builder(intent.treatment());
+ for (PortNumber outPort : outPorts) {
+ intentTreatmentBuilder.setOutput(outPort);
+ }
+ intentTreatment = intentTreatmentBuilder.build();
+ }
+
+ for (PortNumber inPort : inPorts) {
+ TrafficSelector selector = DefaultTrafficSelector
+ .builder(intent.selector()).matchInPort(inPort).build();
+ TrafficTreatment treatment = defaultTreatment;
+ if (ingressPorts.contains(inPort)) {
+ // Use the intent treatment if this is ingress port
+ treatment = intentTreatment;
+ }
+ FlowRule rule = new DefaultFlowRule(deviceId,
+ selector, treatment, 123, appId,
+ new DefaultGroupId((short) (intent.id().fingerprint() & 0xffff)),
+ 0, true);
+ result.add(new FlowRuleOperation(rule, operation));
+ }
+
+ return result;
+ }
+}