| /* |
| * 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; |
| |
| import org.hamcrest.Matchers; |
| import org.junit.Test; |
| import org.onosproject.TestApplicationId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Path; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.intent.AbstractIntentTest; |
| import org.onosproject.net.intent.Constraint; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.IntentTestsMocks; |
| import org.onosproject.net.intent.PathIntent; |
| import org.onosproject.net.intent.PointToPointIntent; |
| import org.onosproject.net.intent.constraint.BandwidthConstraint; |
| import org.onosproject.net.intent.constraint.LambdaConstraint; |
| import org.onosproject.net.resource.Bandwidth; |
| import org.onosproject.net.resource.Lambda; |
| import org.onosproject.net.resource.LinkResourceService; |
| |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import static org.hamcrest.CoreMatchers.instanceOf; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.containsString; |
| import static org.hamcrest.Matchers.hasSize; |
| import static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.fail; |
| import static org.onosproject.net.DefaultEdgeLink.createEdgeLink; |
| import static org.onosproject.net.DeviceId.deviceId; |
| import static org.onosproject.net.NetTestTools.APP_ID; |
| import static org.onosproject.net.NetTestTools.connectPoint; |
| import static org.onosproject.net.PortNumber.portNumber; |
| import static org.onosproject.net.intent.LinksHaveEntryWithSourceDestinationPairMatcher.linksHasPath; |
| |
| /** |
| * Unit tests for the HostToHost intent compiler. |
| */ |
| public class PointToPointIntentCompilerTest extends AbstractIntentTest { |
| |
| private static final ApplicationId APPID = new TestApplicationId("foo"); |
| |
| private TrafficSelector selector = new IntentTestsMocks.MockSelector(); |
| private TrafficTreatment treatment = new IntentTestsMocks.MockTreatment(); |
| |
| /** |
| * Creates a PointToPoint intent based on ingress and egress device Ids. |
| * |
| * @param ingressIdString string for id of ingress device |
| * @param egressIdString string for id of egress device |
| * @return PointToPointIntent for the two devices |
| */ |
| private PointToPointIntent makeIntent(String ingressIdString, |
| String egressIdString) { |
| return new PointToPointIntent(APPID, selector, treatment, |
| connectPoint(ingressIdString, 1), |
| connectPoint(egressIdString, 1)); |
| } |
| |
| /** |
| * Creates a compiler for HostToHost intents. |
| * |
| * @param hops string array describing the path hops to use when compiling |
| * @return HostToHost intent compiler |
| */ |
| private PointToPointIntentCompiler makeCompiler(String[] hops) { |
| PointToPointIntentCompiler compiler = |
| new PointToPointIntentCompiler(); |
| compiler.pathService = new IntentTestsMocks.MockPathService(hops); |
| return compiler; |
| } |
| |
| /** |
| * Creates a point to point intent compiler for a three switch linear |
| * topology. |
| * |
| * @param resourceService service to use for resource allocation requests |
| * @return point to point compiler |
| */ |
| private PointToPointIntentCompiler makeCompiler(LinkResourceService resourceService) { |
| final String[] hops = {"s1", "s2", "s3"}; |
| final PointToPointIntentCompiler compiler = new PointToPointIntentCompiler(); |
| compiler.resourceService = resourceService; |
| compiler.pathService = new IntentTestsMocks.MockPathService(hops); |
| return compiler; |
| } |
| |
| /** |
| * Creates an intent with a given constraint and compiles it. The compiler |
| * will throw PathNotFoundException if the allocations cannot be satisfied. |
| * |
| * @param constraint constraint to apply to the created intent |
| * @param resourceService service to use for resource allocation requests |
| * @return List of compiled intents |
| */ |
| private List<Intent> compileIntent(Constraint constraint, |
| LinkResourceService resourceService) { |
| final List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(constraint); |
| final TrafficSelector selector = new IntentTestsMocks.MockSelector(); |
| final TrafficTreatment treatment = new IntentTestsMocks.MockTreatment(); |
| |
| final PointToPointIntent intent = |
| new PointToPointIntent(APP_ID, |
| selector, |
| treatment, |
| connectPoint("s1", 1), |
| connectPoint("s3", 1), |
| constraints); |
| final PointToPointIntentCompiler compiler = makeCompiler(resourceService); |
| |
| return compiler.compile(intent, null, null); |
| } |
| |
| /** |
| * Tests a pair of devices in an 8 hop path, forward direction. |
| */ |
| @Test |
| public void testForwardPathCompilation() { |
| |
| PointToPointIntent intent = makeIntent("d1", "d8"); |
| |
| String[] hops = {"d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8"}; |
| PointToPointIntentCompiler compiler = makeCompiler(hops); |
| |
| List<Intent> result = compiler.compile(intent, null, null); |
| assertThat(result, is(Matchers.notNullValue())); |
| assertThat(result, hasSize(1)); |
| Intent forwardResultIntent = result.get(0); |
| assertThat(forwardResultIntent instanceof PathIntent, is(true)); |
| |
| if (forwardResultIntent instanceof PathIntent) { |
| PathIntent forwardPathIntent = (PathIntent) forwardResultIntent; |
| // 7 links for the hops, plus one default lnk on ingress and egress |
| assertThat(forwardPathIntent.path().links(), hasSize(hops.length + 1)); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d1", "d2")); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d2", "d3")); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d3", "d4")); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d4", "d5")); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d5", "d6")); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d6", "d7")); |
| assertThat(forwardPathIntent.path().links(), linksHasPath("d7", "d8")); |
| } |
| } |
| |
| /** |
| * Tests a pair of devices in an 8 hop path, forward direction. |
| */ |
| @Test |
| public void testReversePathCompilation() { |
| |
| PointToPointIntent intent = makeIntent("d8", "d1"); |
| |
| String[] hops = {"d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8"}; |
| PointToPointIntentCompiler compiler = makeCompiler(hops); |
| |
| List<Intent> result = compiler.compile(intent, null, null); |
| assertThat(result, is(Matchers.notNullValue())); |
| assertThat(result, hasSize(1)); |
| Intent reverseResultIntent = result.get(0); |
| assertThat(reverseResultIntent instanceof PathIntent, is(true)); |
| |
| if (reverseResultIntent instanceof PathIntent) { |
| PathIntent reversePathIntent = (PathIntent) reverseResultIntent; |
| assertThat(reversePathIntent.path().links(), hasSize(hops.length + 1)); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d2", "d1")); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d3", "d2")); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d4", "d3")); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d5", "d4")); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d6", "d5")); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d7", "d6")); |
| assertThat(reversePathIntent.path().links(), linksHasPath("d8", "d7")); |
| } |
| } |
| |
| /** |
| * Tests compilation of the intent which designates two different ports on the same switch. |
| */ |
| @Test |
| public void testSameSwitchDifferentPortsIntentCompilation() { |
| ConnectPoint src = new ConnectPoint(deviceId("1"), portNumber(1)); |
| ConnectPoint dst = new ConnectPoint(deviceId("1"), portNumber(2)); |
| PointToPointIntent intent = new PointToPointIntent(APP_ID, selector, treatment, src, dst); |
| |
| String[] hops = {"1"}; |
| PointToPointIntentCompiler sut = makeCompiler(hops); |
| |
| List<Intent> compiled = sut.compile(intent, null, null); |
| |
| assertThat(compiled, hasSize(1)); |
| assertThat(compiled.get(0), is(instanceOf(PathIntent.class))); |
| Path path = ((PathIntent) compiled.get(0)).path(); |
| |
| assertThat(path.links(), hasSize(2)); |
| Link firstLink = path.links().get(0); |
| assertThat(firstLink, is(createEdgeLink(src, true))); |
| Link secondLink = path.links().get(1); |
| assertThat(secondLink, is(createEdgeLink(dst, false))); |
| } |
| |
| /** |
| * Tests that requests with sufficient available bandwidth succeed. |
| */ |
| @Test |
| public void testBandwidthConstrainedIntentSuccess() { |
| |
| final LinkResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeBandwidthResourceService(1000.0); |
| final Constraint constraint = new BandwidthConstraint(Bandwidth.bps(100.0)); |
| |
| final List<Intent> compiledIntents = compileIntent(constraint, resourceService); |
| assertThat(compiledIntents, Matchers.notNullValue()); |
| assertThat(compiledIntents, hasSize(1)); |
| } |
| |
| /** |
| * Tests that requests with insufficient available bandwidth fail. |
| */ |
| @Test |
| public void testBandwidthConstrainedIntentFailure() { |
| |
| final LinkResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeBandwidthResourceService(10.0); |
| final Constraint constraint = new BandwidthConstraint(Bandwidth.bps(100.0)); |
| |
| try { |
| compileIntent(constraint, resourceService); |
| fail("Point to Point compilation with insufficient bandwidth does " |
| + "not throw exception."); |
| } catch (PathNotFoundException noPath) { |
| assertThat(noPath.getMessage(), containsString("No path")); |
| } |
| } |
| |
| /** |
| * Tests that requests for available lambdas are successful. |
| */ |
| @Test |
| public void testLambdaConstrainedIntentSuccess() { |
| |
| final Constraint constraint = new LambdaConstraint(Lambda.valueOf(1)); |
| final LinkResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeLambdaResourceService(1); |
| |
| final List<Intent> compiledIntents = |
| compileIntent(constraint, resourceService); |
| assertThat(compiledIntents, Matchers.notNullValue()); |
| assertThat(compiledIntents, hasSize(1)); |
| } |
| |
| /** |
| * Tests that requests for lambdas when there are no available lambdas |
| * fail. |
| */ |
| @Test |
| public void testLambdaConstrainedIntentFailure() { |
| |
| final Constraint constraint = new LambdaConstraint(Lambda.valueOf(1)); |
| final LinkResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeBandwidthResourceService(10.0); |
| try { |
| compileIntent(constraint, resourceService); |
| fail("Point to Point compilation with no available lambda does " |
| + "not throw exception."); |
| } catch (PathNotFoundException noPath) { |
| assertThat(noPath.getMessage(), containsString("No path")); |
| } |
| } |
| |
| } |