Move IntentSynchronizer to routing bundle.
This allows it to be used separately from SDNIP.
Change-Id: I45358666aa32763cb4bcac8f1c0a4025c6b76863
diff --git a/apps/routing/pom.xml b/apps/routing/pom.xml
index 1123c12..51bd396 100644
--- a/apps/routing/pom.xml
+++ b/apps/routing/pom.xml
@@ -106,6 +106,14 @@
<scope>test</scope>
</dependency>
+ <dependency>
+ <groupId>org.onosproject</groupId>
+ <artifactId>onos-api</artifactId>
+ <version>${project.version}</version>
+ <scope>test</scope>
+ <classifier>tests</classifier>
+ </dependency>
+
</dependencies>
</project>
diff --git a/apps/routing/src/main/java/org/onosproject/routing/cli/PrimaryChangeCommand.java b/apps/routing/src/main/java/org/onosproject/routing/cli/PrimaryChangeCommand.java
new file mode 100644
index 0000000..232abe6
--- /dev/null
+++ b/apps/routing/src/main/java/org/onosproject/routing/cli/PrimaryChangeCommand.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2016 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.routing.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.routing.IntentSynchronizationAdminService;
+
+/**
+ * Command to change whether this instance's intent synchronizer is primary.
+ */
+@Command(scope = "onos", name = "sdnip-set-primary",
+ description = "Changes the primary status of this SDN-IP instance")
+public class PrimaryChangeCommand extends AbstractShellCommand {
+
+ @Argument(index = 0, name = "isPrimary",
+ description = "True if this instance should be primary, false if not",
+ required = true, multiValued = false)
+ boolean isPrimary = false;
+
+ @Override
+ protected void execute() {
+ get(IntentSynchronizationAdminService.class).modifyPrimary(isPrimary);
+ }
+
+}
diff --git a/apps/routing/src/main/java/org/onosproject/routing/impl/IntentSynchronizer.java b/apps/routing/src/main/java/org/onosproject/routing/impl/IntentSynchronizer.java
new file mode 100644
index 0000000..22c7d43
--- /dev/null
+++ b/apps/routing/src/main/java/org/onosproject/routing/impl/IntentSynchronizer.java
@@ -0,0 +1,297 @@
+/*
+ * Copyright 2016 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.routing.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.onosproject.cluster.ClusterService;
+import org.onosproject.cluster.LeadershipEvent;
+import org.onosproject.cluster.LeadershipEventListener;
+import org.onosproject.cluster.LeadershipService;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentService;
+import org.onosproject.net.intent.IntentState;
+import org.onosproject.net.intent.IntentUtils;
+import org.onosproject.net.intent.Key;
+import org.onosproject.routing.IntentSynchronizationAdminService;
+import org.onosproject.routing.IntentSynchronizationService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Objects;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+
+import static java.util.concurrent.Executors.newSingleThreadExecutor;
+import static org.onlab.util.Tools.groupedThreads;
+
+/**
+ * Synchronizes intents between an in-memory intent store and the IntentService.
+ */
+@Service
+@Component(immediate = false)
+public class IntentSynchronizer implements IntentSynchronizationService,
+ IntentSynchronizationAdminService {
+
+ private static final Logger log = LoggerFactory.getLogger(IntentSynchronizer.class);
+
+ private static final String APP_NAME = "org.onosproject.intentsynchronizer";
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected CoreService coreService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected LeadershipService leadershipService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected ClusterService clusterService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected IntentService intentService;
+
+ private ApplicationId appId;
+
+ private final InternalLeadershipListener leadershipEventListener =
+ new InternalLeadershipListener();
+
+ private final Map<Key, Intent> intents = new ConcurrentHashMap<>();
+
+ private ExecutorService intentsSynchronizerExecutor;
+
+ private volatile boolean isElectedLeader = false;
+ private volatile boolean isActivatedLeader = false;
+
+ @Activate
+ public void activate() {
+ intentsSynchronizerExecutor = createExecutor();
+
+ this.appId = coreService.registerApplication(APP_NAME);
+
+ leadershipService.addListener(leadershipEventListener);
+ leadershipService.runForLeadership(appId.name());
+
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ leadershipService.withdraw(appId.name());
+ leadershipService.removeListener(leadershipEventListener);
+
+ synchronized (this) {
+ intentsSynchronizerExecutor.shutdownNow();
+ }
+
+ log.info("Stopped");
+ }
+
+ /**
+ * Creates an executor that will be used for synchronization tasks.
+ * <p>
+ * Can be overridden to change the type of executor used.
+ * </p>
+ *
+ * @return executor service
+ */
+ protected ExecutorService createExecutor() {
+ return newSingleThreadExecutor(groupedThreads("onos/" + appId, "sync"));
+ }
+
+ @Override
+ public void removeIntents() {
+ if (!isElectedLeader) {
+ // Only leader will withdraw intents
+ return;
+ }
+
+ log.debug("Intent Synchronizer shutdown: withdrawing all intents...");
+
+ for (Entry<Key, Intent> entry : intents.entrySet()) {
+ intentService.withdraw(entry.getValue());
+ log.debug("Intent Synchronizer withdrawing intent: {}",
+ entry.getValue());
+ }
+
+ intents.clear();
+ log.info("Tried to clean all intents");
+ }
+
+ @Override
+ public void submit(Intent intent) {
+ synchronized (this) {
+ intents.put(intent.key(), intent);
+ if (isElectedLeader && isActivatedLeader) {
+ log.trace("Submitting intent: {}", intent);
+ intentService.submit(intent);
+ }
+ }
+ }
+
+ @Override
+ public void withdraw(Intent intent) {
+ synchronized (this) {
+ intents.remove(intent.key(), intent);
+ if (isElectedLeader && isActivatedLeader) {
+ log.trace("Withdrawing intent: {}", intent);
+ intentService.withdraw(intent);
+ }
+ }
+ }
+
+ /**
+ * Signals the synchronizer that the leadership has changed.
+ *
+ * @param isLeader true if this instance is now the leader, otherwise false
+ */
+ private void leaderChanged(boolean isLeader) {
+ log.debug("Leader changed: {}", isLeader);
+
+ if (!isLeader) {
+ this.isElectedLeader = false;
+ this.isActivatedLeader = false;
+ // Nothing to do
+ return;
+ }
+ this.isActivatedLeader = false;
+ this.isElectedLeader = true;
+
+ // Run the synchronization task
+ intentsSynchronizerExecutor.execute(this::synchronizeIntents);
+ }
+
+ private void synchronizeIntents() {
+ Map<Key, Intent> serviceIntents = new HashMap<>();
+ intentService.getIntents().forEach(i -> {
+ if (i.appId().equals(appId)) {
+ serviceIntents.put(i.key(), i);
+ }
+ });
+
+ List<Intent> intentsToAdd = new LinkedList<>();
+ List<Intent> intentsToRemove = new LinkedList<>();
+
+ for (Intent localIntent : intents.values()) {
+ Intent serviceIntent = serviceIntents.remove(localIntent.key());
+ if (serviceIntent == null) {
+ intentsToAdd.add(localIntent);
+ } else {
+ IntentState state = intentService.getIntentState(serviceIntent.key());
+ if (!IntentUtils.intentsAreEqual(serviceIntent, localIntent) || state == null ||
+ state == IntentState.WITHDRAW_REQ ||
+ state == IntentState.WITHDRAWING ||
+ state == IntentState.WITHDRAWN) {
+ intentsToAdd.add(localIntent);
+ }
+ }
+ }
+
+ for (Intent serviceIntent : serviceIntents.values()) {
+ IntentState state = intentService.getIntentState(serviceIntent.key());
+ if (state != null && state != IntentState.WITHDRAW_REQ
+ && state != IntentState.WITHDRAWING
+ && state != IntentState.WITHDRAWN) {
+ intentsToRemove.add(serviceIntent);
+ }
+ }
+
+ log.debug("Intent Synchronizer: submitting {}, withdrawing {}",
+ intentsToAdd.size(), intentsToRemove.size());
+
+ // Withdraw Intents
+ for (Intent intent : intentsToRemove) {
+ intentService.withdraw(intent);
+ log.trace("Intent Synchronizer: withdrawing intent: {}",
+ intent);
+ }
+ if (!isElectedLeader) {
+ log.debug("Intent Synchronizer: cannot withdraw intents: " +
+ "not elected leader anymore");
+ isActivatedLeader = false;
+ return;
+ }
+
+ // Add Intents
+ for (Intent intent : intentsToAdd) {
+ intentService.submit(intent);
+ log.trace("Intent Synchronizer: submitting intent: {}",
+ intent);
+ }
+ if (!isElectedLeader) {
+ log.debug("Intent Synchronizer: cannot submit intents: " +
+ "not elected leader anymore");
+ isActivatedLeader = false;
+ return;
+ }
+
+ if (isElectedLeader) {
+ // Allow push of Intents
+ isActivatedLeader = true;
+ } else {
+ isActivatedLeader = false;
+ }
+ log.debug("Intent synchronization completed");
+ }
+
+ @Override
+ public void modifyPrimary(boolean isPrimary) {
+ leaderChanged(isPrimary);
+ }
+
+ /**
+ * A listener for leadership events.
+ */
+ private class InternalLeadershipListener implements LeadershipEventListener {
+
+ @Override
+ public void event(LeadershipEvent event) {
+ if (!event.subject().topic().equals(appId.name())) {
+ // Not our topic: ignore
+ return;
+ }
+ if (!Objects.equals(event.subject().leader(),
+ clusterService.getLocalNode().id())) {
+ // The event is not about this instance: ignore
+ return;
+ }
+
+ switch (event.type()) {
+ case LEADER_ELECTED:
+ log.info("IntentSynchronizer gained leadership");
+ leaderChanged(true);
+ break;
+ case LEADER_BOOTED:
+ log.info("IntentSynchronizer lost leadership");
+ leaderChanged(false);
+ break;
+ case LEADER_REELECTED:
+ default:
+ break;
+ }
+ }
+ }
+}
diff --git a/apps/routing/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/apps/routing/src/main/resources/OSGI-INF/blueprint/shell-config.xml
index 866e1c4..d5ca246 100644
--- a/apps/routing/src/main/resources/OSGI-INF/blueprint/shell-config.xml
+++ b/apps/routing/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -34,5 +34,8 @@
<command>
<action class="org.onosproject.routing.cli.BgpSpeakersListCommand"/>
</command>
+ <command>
+ <action class="org.onosproject.routing.cli.PrimaryChangeCommand"/>
+ </command>
</command-bundle>
</blueprint>
diff --git a/apps/routing/src/test/java/org/onosproject/routing/impl/IntentSynchronizerTest.java b/apps/routing/src/test/java/org/onosproject/routing/impl/IntentSynchronizerTest.java
new file mode 100644
index 0000000..d265323
--- /dev/null
+++ b/apps/routing/src/test/java/org/onosproject/routing/impl/IntentSynchronizerTest.java
@@ -0,0 +1,447 @@
+/*
+ * Copyright 2016 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.routing.impl;
+
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.MoreExecutors;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.junit.TestUtils;
+import org.onlab.junit.TestUtils.TestUtilsException;
+import org.onlab.packet.Ethernet;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.Ip4Prefix;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpPrefix;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
+import org.onosproject.TestApplicationId;
+import org.onosproject.cluster.LeadershipServiceAdapter;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreServiceAdapter;
+import org.onosproject.incubator.net.intf.Interface;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.host.InterfaceIpAddress;
+import org.onosproject.net.intent.AbstractIntentTest;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentService;
+import org.onosproject.net.intent.IntentState;
+import org.onosproject.net.intent.IntentUtils;
+import org.onosproject.net.intent.Key;
+import org.onosproject.net.intent.MultiPointToSinglePointIntent;
+import org.onosproject.routing.RouteEntry;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.reset;
+import static org.easymock.EasyMock.verify;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+
+/**
+ * This class tests the intent synchronization function in the
+ * IntentSynchronizer class.
+ */
+public class IntentSynchronizerTest extends AbstractIntentTest {
+
+ private IntentService intentService;
+
+ private static final ConnectPoint SW1_ETH1 = new ConnectPoint(
+ DeviceId.deviceId("of:0000000000000001"),
+ PortNumber.portNumber(1));
+
+ private static final ConnectPoint SW2_ETH1 = new ConnectPoint(
+ DeviceId.deviceId("of:0000000000000002"),
+ PortNumber.portNumber(1));
+
+ private static final ConnectPoint SW3_ETH1 = new ConnectPoint(
+ DeviceId.deviceId("of:0000000000000003"),
+ PortNumber.portNumber(1));
+
+ private static final ConnectPoint SW4_ETH1 = new ConnectPoint(
+ DeviceId.deviceId("of:0000000000000004"),
+ PortNumber.portNumber(1));
+
+ private IntentSynchronizer intentSynchronizer;
+ private final Set<Interface> interfaces = Sets.newHashSet();
+
+ private static final ApplicationId APPID =
+ TestApplicationId.create("intent-sync-test");
+
+ @Before
+ public void setUp() throws Exception {
+ super.setUp();
+
+ setUpInterfaceService();
+
+ intentService = createMock(IntentService.class);
+
+ intentSynchronizer = new TestIntentSynchronizer();
+
+ intentSynchronizer.coreService = new TestCoreService();
+ intentSynchronizer.leadershipService = new TestLeadershipService();
+ intentSynchronizer.intentService = intentService;
+
+ intentSynchronizer.activate();
+ }
+
+ /**
+ * Sets up InterfaceService.
+ */
+ private void setUpInterfaceService() {
+ Set<InterfaceIpAddress> interfaceIpAddresses1 = Sets.newHashSet();
+ interfaceIpAddresses1.add(new InterfaceIpAddress(
+ IpAddress.valueOf("192.168.10.101"),
+ IpPrefix.valueOf("192.168.10.0/24")));
+ Interface sw1Eth1 = new Interface(SW1_ETH1,
+ interfaceIpAddresses1, MacAddress.valueOf("00:00:00:00:00:01"),
+ VlanId.NONE);
+ interfaces.add(sw1Eth1);
+
+ Set<InterfaceIpAddress> interfaceIpAddresses2 = Sets.newHashSet();
+ interfaceIpAddresses2.add(
+ new InterfaceIpAddress(IpAddress.valueOf("192.168.20.101"),
+ IpPrefix.valueOf("192.168.20.0/24")));
+ Interface sw2Eth1 = new Interface(SW2_ETH1,
+ interfaceIpAddresses2, MacAddress.valueOf("00:00:00:00:00:02"),
+ VlanId.NONE);
+ interfaces.add(sw2Eth1);
+
+ Set<InterfaceIpAddress> interfaceIpAddresses3 = Sets.newHashSet();
+ interfaceIpAddresses3.add(
+ new InterfaceIpAddress(IpAddress.valueOf("192.168.30.101"),
+ IpPrefix.valueOf("192.168.30.0/24")));
+ Interface sw3Eth1 = new Interface(SW3_ETH1,
+ interfaceIpAddresses3, MacAddress.valueOf("00:00:00:00:00:03"),
+ VlanId.NONE);
+ interfaces.add(sw3Eth1);
+
+ InterfaceIpAddress interfaceIpAddress4 =
+ new InterfaceIpAddress(IpAddress.valueOf("192.168.40.101"),
+ IpPrefix.valueOf("192.168.40.0/24"));
+ Interface sw4Eth1 = new Interface(SW4_ETH1,
+ Sets.newHashSet(interfaceIpAddress4),
+ MacAddress.valueOf("00:00:00:00:00:04"),
+ VlanId.vlanId((short) 1));
+
+ interfaces.add(sw4Eth1);
+ }
+
+ /**
+ * Tests the synchronization behavior of intent synchronizer. We set up
+ * a discrepancy between the intent service state and the intent
+ * synchronizer's state and ensure that this is reconciled correctly.
+ *
+ * @throws TestUtilsException
+ */
+ @Test
+ public void testIntentSync() throws TestUtilsException {
+
+ //
+ // Construct routes and intents.
+ // This test simulates the following cases during the master change
+ // time interval:
+ // 1. RouteEntry1 did not change and the intent also did not change.
+ // 2. RouteEntry2 was deleted, but the intent was not deleted.
+ // 3. RouteEntry3 was newly added, and the intent was also submitted.
+ // 4. RouteEntry4 was updated to RouteEntry4Update, and the intent was
+ // also updated to a new one.
+ // 5. RouteEntry5 did not change, but its intent id changed.
+ // 6. RouteEntry6 was newly added, but the intent was not submitted.
+ //
+ RouteEntry routeEntry1 = new RouteEntry(
+ Ip4Prefix.valueOf("1.1.1.0/24"),
+ Ip4Address.valueOf("192.168.10.1"));
+
+ RouteEntry routeEntry2 = new RouteEntry(
+ Ip4Prefix.valueOf("2.2.2.0/24"),
+ Ip4Address.valueOf("192.168.20.1"));
+
+ RouteEntry routeEntry3 = new RouteEntry(
+ Ip4Prefix.valueOf("3.3.3.0/24"),
+ Ip4Address.valueOf("192.168.30.1"));
+
+ RouteEntry routeEntry4 = new RouteEntry(
+ Ip4Prefix.valueOf("4.4.4.0/24"),
+ Ip4Address.valueOf("192.168.30.1"));
+
+ RouteEntry routeEntry4Update = new RouteEntry(
+ Ip4Prefix.valueOf("4.4.4.0/24"),
+ Ip4Address.valueOf("192.168.20.1"));
+
+ RouteEntry routeEntry5 = new RouteEntry(
+ Ip4Prefix.valueOf("5.5.5.0/24"),
+ Ip4Address.valueOf("192.168.10.1"));
+
+ RouteEntry routeEntry6 = new RouteEntry(
+ Ip4Prefix.valueOf("6.6.6.0/24"),
+ Ip4Address.valueOf("192.168.10.1"));
+
+ RouteEntry routeEntry7 = new RouteEntry(
+ Ip4Prefix.valueOf("7.7.7.0/24"),
+ Ip4Address.valueOf("192.168.10.1"));
+
+ MultiPointToSinglePointIntent intent1 = intentBuilder(
+ routeEntry1.prefix(), "00:00:00:00:00:01", SW1_ETH1);
+ MultiPointToSinglePointIntent intent2 = intentBuilder(
+ routeEntry2.prefix(), "00:00:00:00:00:02", SW2_ETH1);
+ MultiPointToSinglePointIntent intent3 = intentBuilder(
+ routeEntry3.prefix(), "00:00:00:00:00:03", SW3_ETH1);
+ MultiPointToSinglePointIntent intent4 = intentBuilder(
+ routeEntry4.prefix(), "00:00:00:00:00:03", SW3_ETH1);
+ MultiPointToSinglePointIntent intent4Update = intentBuilder(
+ routeEntry4Update.prefix(), "00:00:00:00:00:02", SW2_ETH1);
+ MultiPointToSinglePointIntent intent5 = intentBuilder(
+ routeEntry5.prefix(), "00:00:00:00:00:01", SW1_ETH1);
+ MultiPointToSinglePointIntent intent7 = intentBuilder(
+ routeEntry7.prefix(), "00:00:00:00:00:01", SW1_ETH1);
+
+ // Compose a intent, which is equal to intent5 but the id is different.
+ MultiPointToSinglePointIntent intent5New =
+ staticIntentBuilder(intent5, routeEntry5, "00:00:00:00:00:01");
+ assertThat(IntentUtils.intentsAreEqual(intent5, intent5New), is(true));
+ assertFalse(intent5.equals(intent5New));
+
+ MultiPointToSinglePointIntent intent6 = intentBuilder(
+ routeEntry6.prefix(), "00:00:00:00:00:01", SW1_ETH1);
+
+ // Set up expectation
+ Set<Intent> intents = new HashSet<>();
+ intents.add(intent1);
+ expect(intentService.getIntentState(intent1.key()))
+ .andReturn(IntentState.INSTALLED).anyTimes();
+ intents.add(intent2);
+ expect(intentService.getIntentState(intent2.key()))
+ .andReturn(IntentState.INSTALLED).anyTimes();
+ intents.add(intent4);
+ expect(intentService.getIntentState(intent4.key()))
+ .andReturn(IntentState.INSTALLED).anyTimes();
+ intents.add(intent5);
+ expect(intentService.getIntentState(intent5.key()))
+ .andReturn(IntentState.INSTALLED).anyTimes();
+ intents.add(intent7);
+ expect(intentService.getIntentState(intent7.key()))
+ .andReturn(IntentState.WITHDRAWING).anyTimes();
+ expect(intentService.getIntents()).andReturn(intents).anyTimes();
+
+ // These are the operations that should be done to the intentService
+ // during synchronization
+ intentService.withdraw(intent2);
+ intentService.submit(intent3);
+ intentService.submit(intent4Update);
+ intentService.submit(intent6);
+ intentService.submit(intent7);
+ replay(intentService);
+
+ // Start the test
+
+ // Simulate some input from the clients. The intent synchronizer has not
+ // gained the global leadership yet, but it will remember this input for
+ // when it does.
+ intentSynchronizer.submit(intent1);
+ intentSynchronizer.submit(intent2);
+ intentSynchronizer.withdraw(intent2);
+ intentSynchronizer.submit(intent3);
+ intentSynchronizer.submit(intent4);
+ intentSynchronizer.submit(intent4Update);
+ intentSynchronizer.submit(intent5);
+ intentSynchronizer.submit(intent6);
+ intentSynchronizer.submit(intent7);
+
+ // Give the leadership to the intent synchronizer. It will now attempt
+ // to synchronize the intents in the store with the intents it has
+ // recorded based on the earlier user input.
+ intentSynchronizer.modifyPrimary(true);
+
+ verify(intentService);
+ }
+
+ /**
+ * Tests the behavior of the submit API, both when the synchronizer has
+ * leadership and when it does not.
+ */
+ @Test
+ public void testSubmit() {
+ IpPrefix prefix = Ip4Prefix.valueOf("1.1.1.0/24");
+ Intent intent = intentBuilder(prefix, "00:00:00:00:00:01", SW1_ETH1);
+
+ // Set up expectations
+ intentService.submit(intent);
+ expect(intentService.getIntents()).andReturn(Collections.emptyList())
+ .anyTimes();
+ replay(intentService);
+
+ // Give the intent synchronizer leadership so it will submit intents
+ // to the intent service
+ intentSynchronizer.modifyPrimary(true);
+
+ // Test the submit
+ intentSynchronizer.submit(intent);
+
+ verify(intentService);
+
+ // Now we'll remove leadership from the intent synchronizer and verify
+ // that it does not submit any intents to the intent service when we
+ // call the submit API
+ reset(intentService);
+ replay(intentService);
+
+ intentSynchronizer.modifyPrimary(false);
+
+ intentSynchronizer.submit(intent);
+
+ verify(intentService);
+ }
+
+ /**
+ * Tests the behavior of the withdraw API, both when the synchronizer has
+ * leadership and when it does not.
+ */
+ @Test
+ public void testWithdraw() {
+ IpPrefix prefix = Ip4Prefix.valueOf("1.1.1.0/24");
+ Intent intent = intentBuilder(prefix, "00:00:00:00:00:01", SW1_ETH1);
+
+ // Submit an intent first so we can withdraw it later
+ intentService.submit(intent);
+ intentService.withdraw(intent);
+ expect(intentService.getIntents()).andReturn(Collections.emptyList())
+ .anyTimes();
+ replay(intentService);
+
+ // Give the intent synchronizer leadership so it will submit intents
+ // to the intent service
+ intentSynchronizer.modifyPrimary(true);
+
+ // Test the submit then withdraw
+ intentSynchronizer.submit(intent);
+ intentSynchronizer.withdraw(intent);
+
+ verify(intentService);
+
+ // Now we'll remove leadership from the intent synchronizer and verify
+ // that it does not withdraw any intents to the intent service when we
+ // call the withdraw API
+ reset(intentService);
+ replay(intentService);
+
+ intentSynchronizer.modifyPrimary(false);
+
+ intentSynchronizer.submit(intent);
+ intentSynchronizer.withdraw(intent);
+
+ verify(intentService);
+ }
+
+ /**
+ * MultiPointToSinglePointIntent builder.
+ *
+ * @param ipPrefix the ipPrefix to match
+ * @param nextHopMacAddress to which the destination MAC address in packet
+ * should be rewritten
+ * @param egressPoint to which packets should be sent
+ * @return the constructed MultiPointToSinglePointIntent
+ */
+ private MultiPointToSinglePointIntent intentBuilder(IpPrefix ipPrefix,
+ String nextHopMacAddress, ConnectPoint egressPoint) {
+
+ TrafficSelector.Builder selectorBuilder =
+ DefaultTrafficSelector.builder();
+ if (ipPrefix.isIp4()) {
+ selectorBuilder.matchEthType(Ethernet.TYPE_IPV4);
+ selectorBuilder.matchIPDst(ipPrefix);
+ } else {
+ selectorBuilder.matchEthType(Ethernet.TYPE_IPV6);
+ selectorBuilder.matchIPv6Dst(ipPrefix);
+ }
+
+ TrafficTreatment.Builder treatmentBuilder =
+ DefaultTrafficTreatment.builder();
+ treatmentBuilder.setEthDst(MacAddress.valueOf(nextHopMacAddress));
+
+ Set<ConnectPoint> ingressPoints = new HashSet<>();
+ for (Interface intf : interfaces) {
+ if (!intf.connectPoint().equals(egressPoint)) {
+ ConnectPoint srcPort = intf.connectPoint();
+ ingressPoints.add(srcPort);
+ }
+ }
+ MultiPointToSinglePointIntent intent =
+ MultiPointToSinglePointIntent.builder()
+ .appId(APPID)
+ .key(Key.of(ipPrefix.toString(), APPID))
+ .selector(selectorBuilder.build())
+ .treatment(treatmentBuilder.build())
+ .ingressPoints(ingressPoints)
+ .egressPoint(egressPoint)
+ .build();
+ return intent;
+ }
+
+ /**
+ * A static MultiPointToSinglePointIntent builder, the returned intent is
+ * equal to the input intent except that the id is different.
+ *
+ * @param intent the intent to be used for building a new intent
+ * @param routeEntry the relative routeEntry of the intent
+ * @return the newly constructed MultiPointToSinglePointIntent
+ * @throws TestUtilsException
+ */
+ private MultiPointToSinglePointIntent staticIntentBuilder(
+ MultiPointToSinglePointIntent intent, RouteEntry routeEntry,
+ String nextHopMacAddress) throws TestUtilsException {
+
+ // Use a different egress ConnectPoint with that in intent
+ // to generate a different id
+ MultiPointToSinglePointIntent intentNew = intentBuilder(
+ routeEntry.prefix(), nextHopMacAddress, SW2_ETH1);
+ TestUtils.setField(intentNew, "egressPoint", intent.egressPoint());
+ TestUtils.setField(intentNew,
+ "ingressPoints", intent.ingressPoints());
+ return intentNew;
+ }
+
+ private class TestIntentSynchronizer extends IntentSynchronizer {
+ @Override
+ protected ExecutorService createExecutor() {
+ return MoreExecutors.newDirectExecutorService();
+ }
+ }
+
+ private class TestCoreService extends CoreServiceAdapter {
+ @Override
+ public ApplicationId registerApplication(String name) {
+ return APPID;
+ }
+ }
+
+ private class TestLeadershipService extends LeadershipServiceAdapter {
+
+ }
+}