| /* |
| * 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.codec.impl; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.ImmutableSet; |
| import org.hamcrest.Description; |
| import org.hamcrest.TypeSafeDiagnosingMatcher; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.MacAddress; |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.criteria.Criteria; |
| import org.onosproject.net.flow.criteria.Criterion; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Set; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.is; |
| import static org.hamcrest.Matchers.notNullValue; |
| |
| /** |
| * Unit tests for traffic selector codec. |
| */ |
| public class TrafficSelectorCodecTest { |
| |
| private MockCodecContext context; |
| private JsonCodec<TrafficSelector> trafficSelectorCodec; |
| |
| @Before |
| public void setUp() { |
| context = new MockCodecContext(); |
| trafficSelectorCodec = context.codec(TrafficSelector.class); |
| assertThat(trafficSelectorCodec, notNullValue()); |
| } |
| |
| /** |
| * Tests encoding of a traffic selector object. |
| */ |
| @Test |
| public void testTrafficSelectorEncode() { |
| |
| Criterion inPort = Criteria.matchInPort(PortNumber.portNumber(0)); |
| Criterion ethSrc = Criteria.matchEthSrc(MacAddress.valueOf("11:22:33:44:55:66")); |
| Criterion ethDst = Criteria.matchEthDst(MacAddress.valueOf("44:55:66:77:88:99")); |
| Criterion ethType = Criteria.matchEthType(Ethernet.TYPE_IPV4); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| TrafficSelector selector = sBuilder |
| .add(inPort) |
| .add(ethSrc) |
| .add(ethDst) |
| .add(ethType) |
| .build(); |
| |
| ObjectNode selectorJson = trafficSelectorCodec.encode(selector, context); |
| assertThat(selectorJson, TrafficSelectorJsonMatcher.matchesTrafficSelector(selector)); |
| } |
| |
| /** |
| * Tests decoding of a traffic selector JSON object. |
| */ |
| @Test |
| public void testTrafficSelectorDecode() throws IOException { |
| TrafficSelector selector = getSelector("TrafficSelector.json"); |
| |
| Set<Criterion> criteria = selector.criteria(); |
| assertThat(criteria.size(), is(4)); |
| |
| ImmutableSet<String> types = ImmutableSet.of("IN_PORT", "ETH_SRC", "ETH_DST", "ETH_TYPE"); |
| |
| criteria.forEach(c -> assertThat(types.contains(c.type().name()), is(true))); |
| } |
| |
| public static final class TrafficSelectorJsonMatcher |
| extends TypeSafeDiagnosingMatcher<JsonNode> { |
| private final TrafficSelector trafficSelector; |
| |
| private TrafficSelectorJsonMatcher(TrafficSelector trafficSelector) { |
| this.trafficSelector = trafficSelector; |
| } |
| |
| @Override |
| protected boolean matchesSafely(JsonNode jsonNode, Description description) { |
| // check size of criteria |
| JsonNode jsonCriteria = jsonNode.get("criteria"); |
| if (jsonCriteria.size() != trafficSelector.criteria().size()) { |
| description.appendText("criteria size was " + jsonCriteria.size()); |
| return false; |
| } |
| |
| // check criteria |
| for (Criterion criterion : trafficSelector.criteria()) { |
| boolean criterionFound = false; |
| for (int criterionIndex = 0; criterionIndex < jsonCriteria.size(); criterionIndex++) { |
| CriterionJsonMatcher criterionMatcher = CriterionJsonMatcher.matchesCriterion(criterion); |
| if (criterionMatcher.matches(jsonCriteria.get(criterionIndex))) { |
| criterionFound = true; |
| break; |
| } |
| } |
| |
| if (!criterionFound) { |
| description.appendText("criterion not found " + criterion.toString()); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public void describeTo(Description description) { |
| description.appendText(trafficSelector.toString()); |
| } |
| |
| /** |
| * Factory to allocate a traffic selector matcher. |
| * |
| * @param selector traffic selector object we are looking for |
| * @return matcher |
| */ |
| static TrafficSelectorJsonMatcher matchesTrafficSelector(TrafficSelector selector) { |
| return new TrafficSelectorJsonMatcher(selector); |
| } |
| } |
| |
| /** |
| * Reads in a traffic selector from the given resource and decodes it. |
| * |
| * @param resourceName resource to use to read the JSON for the rule |
| * @return decoded trafficSelector |
| * @throws IOException if processing the resource fails |
| */ |
| private TrafficSelector getSelector(String resourceName) throws IOException { |
| InputStream jsonStream = TrafficSelectorCodecTest.class.getResourceAsStream(resourceName); |
| JsonNode json = context.mapper().readTree(jsonStream); |
| assertThat(json, notNullValue()); |
| TrafficSelector selector = trafficSelectorCodec.decode((ObjectNode) json, context); |
| assertThat(selector, notNullValue()); |
| return selector; |
| } |
| } |