| /* |
| * 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.junit.Test; |
| import org.onosproject.net.flow.FlowRuleOperation; |
| 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.Collection; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.*; |
| import static org.junit.Assert.fail; |
| import static org.onosproject.net.NetTestTools.APP_ID; |
| import static org.onosproject.net.NetTestTools.connectPoint; |
| |
| /** |
| * Unit tests for calculating paths for intents with constraints. |
| */ |
| |
| public class PathConstraintCalculationTest extends AbstractIntentTest { |
| |
| /** |
| * 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); |
| } |
| |
| /** |
| * Installs a compiled path intent and returns the flow rules it generates. |
| * |
| * @param compiledIntents list of compiled intents |
| * @param resourceService service to use for resource allocation requests |
| * @return fow rule entries |
| */ |
| private List<Collection<FlowRuleOperation>> installIntents(List<Intent> compiledIntents, |
| LinkResourceService resourceService) { |
| final PathIntent path = (PathIntent) compiledIntents.get(0); |
| |
| final PathIntentInstaller installer = new PathIntentInstaller(); |
| installer.resourceService = resourceService; |
| installer.appId = APP_ID; |
| return installer.install(path); |
| } |
| |
| /** |
| * 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, 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, 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")); |
| } |
| } |
| |
| /** |
| * Tests that installation of bandwidth constrained path intents are |
| * successful. |
| */ |
| @Test |
| public void testInstallBandwidthConstrainedIntentSuccess() { |
| |
| final IntentTestsMocks.MockResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeBandwidthResourceService(1000.0); |
| final Constraint constraint = new BandwidthConstraint(Bandwidth.bps(100.0)); |
| |
| final List<Intent> compiledIntents = compileIntent(constraint, resourceService); |
| assertThat(compiledIntents, notNullValue()); |
| assertThat(compiledIntents, hasSize(1)); |
| |
| final List<Collection<FlowRuleOperation>> flowOperations = |
| installIntents(compiledIntents, resourceService); |
| |
| assertThat(flowOperations, notNullValue()); |
| assertThat(flowOperations, hasSize(1)); |
| } |
| |
| /** |
| * Tests that installation of bandwidth constrained path intents fail |
| * if there are no available resources. |
| */ |
| @Test |
| public void testInstallBandwidthConstrainedIntentFailure() { |
| |
| final IntentTestsMocks.MockResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeBandwidthResourceService(1000.0); |
| final Constraint constraint = new BandwidthConstraint(Bandwidth.bps(100.0)); |
| |
| final List<Intent> compiledIntents = compileIntent(constraint, resourceService); |
| assertThat(compiledIntents, notNullValue()); |
| assertThat(compiledIntents, hasSize(1)); |
| |
| // Make it look like the available bandwidth was consumed |
| resourceService.setAvailableBandwidth(1.0); |
| |
| try { |
| installIntents(compiledIntents, resourceService); |
| fail("Bandwidth request with no available bandwidth did not fail."); |
| } catch (IntentTestsMocks.MockedAllocationFailure failure) { |
| assertThat(failure, |
| instanceOf(IntentTestsMocks.MockedAllocationFailure.class)); |
| } |
| } |
| |
| /** |
| * Tests that installation of lambda constrained path intents are |
| * successful. |
| */ |
| @Test |
| public void testInstallLambdaConstrainedIntentSuccess() { |
| |
| final IntentTestsMocks.MockResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeLambdaResourceService(1); |
| final Constraint constraint = new LambdaConstraint(Lambda.valueOf(1)); |
| |
| final List<Intent> compiledIntents = compileIntent(constraint, resourceService); |
| assertThat(compiledIntents, notNullValue()); |
| assertThat(compiledIntents, hasSize(1)); |
| |
| final List<Collection<FlowRuleOperation>> flowOperations = |
| installIntents(compiledIntents, resourceService); |
| |
| assertThat(flowOperations, notNullValue()); |
| assertThat(flowOperations, hasSize(1)); |
| } |
| |
| /** |
| * Tests that installation of lambda constrained path intents fail |
| * if there are no available resources. |
| */ |
| @Test |
| public void testInstallLambdaConstrainedIntentFailure() { |
| |
| final IntentTestsMocks.MockResourceService resourceService = |
| IntentTestsMocks.MockResourceService.makeLambdaResourceService(1); |
| final Constraint constraint = new LambdaConstraint(Lambda.valueOf(1)); |
| |
| final List<Intent> compiledIntents = compileIntent(constraint, resourceService); |
| assertThat(compiledIntents, notNullValue()); |
| assertThat(compiledIntents, hasSize(1)); |
| |
| // Make it look like the available lambda was consumed |
| resourceService.setAvailableLambda(0); |
| |
| try { |
| installIntents(compiledIntents, resourceService); |
| fail("Lambda request with no available lambda did not fail."); |
| } catch (IntentTestsMocks.MockedAllocationFailure failure) { |
| assertThat(failure, |
| instanceOf(IntentTestsMocks.MockedAllocationFailure.class)); |
| } |
| } |
| |
| } |