Ray Milkey | db35808 | 2015-01-13 16:34:38 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.codec.impl; |
| 17 | |
| 18 | import java.util.List; |
| 19 | import java.util.Set; |
| 20 | |
| 21 | import org.hamcrest.Description; |
| 22 | import org.hamcrest.TypeSafeDiagnosingMatcher; |
| 23 | import org.onosproject.net.ConnectPoint; |
| 24 | import org.onosproject.net.NetworkResource; |
| 25 | import org.onosproject.net.flow.TrafficSelector; |
| 26 | import org.onosproject.net.flow.TrafficTreatment; |
| 27 | import org.onosproject.net.flow.criteria.Criterion; |
| 28 | import org.onosproject.net.flow.instructions.Instruction; |
| 29 | import org.onosproject.net.intent.ConnectivityIntent; |
| 30 | import org.onosproject.net.intent.Constraint; |
| 31 | import org.onosproject.net.intent.HostToHostIntent; |
| 32 | import org.onosproject.net.intent.Intent; |
| 33 | import org.onosproject.net.intent.PointToPointIntent; |
| 34 | |
| 35 | import com.fasterxml.jackson.databind.JsonNode; |
| 36 | |
| 37 | /** |
| 38 | * Hamcrest matcher to check that an intent representation in JSON matches |
| 39 | * the actual intent. |
| 40 | */ |
| 41 | public final class IntentJsonMatcher extends TypeSafeDiagnosingMatcher<JsonNode> { |
| 42 | |
| 43 | private final Intent intent; |
| 44 | |
| 45 | /** |
| 46 | * Constructor is private, use factory method. |
| 47 | * |
| 48 | * @param intentValue the intent object to compare against |
| 49 | */ |
| 50 | private IntentJsonMatcher(Intent intentValue) { |
| 51 | intent = intentValue; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Matches the JSON representation of a host to host intent. |
| 56 | * |
| 57 | * @param jsonIntent JSON representation of the intent |
| 58 | * @param description Description object used for recording errors |
| 59 | * @return true if the JSON matches the intent, false otherwise |
| 60 | */ |
| 61 | private boolean matchHostToHostIntent(JsonNode jsonIntent, Description description) { |
| 62 | final HostToHostIntent hostToHostIntent = (HostToHostIntent) intent; |
| 63 | |
| 64 | // check host one |
| 65 | final String host1 = hostToHostIntent.one().toString(); |
| 66 | final String jsonHost1 = jsonIntent.get("one").asText(); |
| 67 | if (!host1.equals(jsonHost1)) { |
| 68 | description.appendText("host one was " + jsonHost1); |
| 69 | return false; |
| 70 | } |
| 71 | |
| 72 | // check host 2 |
| 73 | final String host2 = hostToHostIntent.two().toString(); |
| 74 | final String jsonHost2 = jsonIntent.get("two").asText(); |
| 75 | if (!host2.equals(jsonHost2)) { |
| 76 | description.appendText("host two was " + jsonHost2); |
| 77 | return false; |
| 78 | } |
| 79 | return true; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Matches the JSON representation of a point to point intent. |
| 84 | * |
| 85 | * @param jsonIntent JSON representation of the intent |
| 86 | * @param description Description object used for recording errors |
| 87 | * @return true if the JSON matches the intent, false otherwise |
| 88 | */ |
| 89 | private boolean matchPointToPointIntent(JsonNode jsonIntent, Description description) { |
| 90 | final PointToPointIntent pointToPointIntent = (PointToPointIntent) intent; |
| 91 | |
| 92 | // check ingress connection |
| 93 | final ConnectPoint ingress = pointToPointIntent.ingressPoint(); |
| 94 | final ConnectPointJsonMatcher ingressMatcher = |
| 95 | ConnectPointJsonMatcher.matchesConnectPoint(ingress); |
| 96 | final JsonNode jsonIngress = jsonIntent.get("ingressPoint"); |
| 97 | final boolean ingressMatches = |
| 98 | ingressMatcher.matchesSafely(jsonIngress, description); |
| 99 | |
| 100 | if (!ingressMatches) { |
| 101 | description.appendText("ingress was " + jsonIngress); |
| 102 | return false; |
| 103 | } |
| 104 | |
| 105 | // check egress connection |
| 106 | final ConnectPoint egress = pointToPointIntent.egressPoint(); |
| 107 | final ConnectPointJsonMatcher egressMatcher = |
| 108 | ConnectPointJsonMatcher.matchesConnectPoint(egress); |
| 109 | final JsonNode jsonEgress = jsonIntent.get("egressPoint"); |
| 110 | final boolean egressMatches = |
| 111 | egressMatcher.matchesSafely(jsonEgress, description); |
| 112 | |
| 113 | if (!egressMatches) { |
| 114 | description.appendText("egress was " + jsonEgress); |
| 115 | return false; |
| 116 | } |
| 117 | |
| 118 | return true; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Matches the JSON representation of a connectivity intent. Calls the |
| 123 | * matcher for the connectivity intent subtype. |
| 124 | * |
| 125 | * @param jsonIntent JSON representation of the intent |
| 126 | * @param description Description object used for recording errors |
| 127 | * @return true if the JSON matches the intent, false otherwise |
| 128 | */ |
| 129 | private boolean matchConnectivityIntent(JsonNode jsonIntent, Description description) { |
| 130 | final ConnectivityIntent connectivityIntent = (ConnectivityIntent) intent; |
| 131 | |
| 132 | // check selector |
| 133 | final JsonNode jsonSelector = jsonIntent.get("selector"); |
| 134 | final TrafficSelector selector = connectivityIntent.selector(); |
| 135 | final Set<Criterion> criteria = selector.criteria(); |
| 136 | final JsonNode jsonCriteria = jsonSelector.get("criteria"); |
| 137 | if (jsonCriteria.size() != criteria.size()) { |
| 138 | description.appendText("size of criteria array is " |
| 139 | + Integer.toString(jsonCriteria.size())); |
| 140 | return false; |
| 141 | } |
| 142 | |
| 143 | for (Criterion criterion : criteria) { |
| 144 | boolean criterionFound = false; |
| 145 | for (int criterionIndex = 0; criterionIndex < jsonCriteria.size(); criterionIndex++) { |
| 146 | final CriterionJsonMatcher criterionMatcher = |
| 147 | CriterionJsonMatcher.matchesCriterion(criterion); |
| 148 | if (criterionMatcher.matches(jsonCriteria.get(criterionIndex))) { |
| 149 | criterionFound = true; |
| 150 | break; |
| 151 | } |
| 152 | } |
| 153 | if (!criterionFound) { |
| 154 | description.appendText("criterion not found " + criterion.toString()); |
| 155 | return false; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | // check treatment |
| 160 | final JsonNode jsonTreatment = jsonIntent.get("treatment"); |
| 161 | final TrafficTreatment treatment = connectivityIntent.treatment(); |
| 162 | final List<Instruction> instructions = treatment.instructions(); |
| 163 | final JsonNode jsonInstructions = jsonTreatment.get("instructions"); |
| 164 | if (jsonInstructions.size() != instructions.size()) { |
| 165 | description.appendText("size of instructions array is " |
| 166 | + Integer.toString(jsonInstructions.size())); |
| 167 | return false; |
| 168 | } |
| 169 | |
| 170 | for (Instruction instruction : instructions) { |
| 171 | boolean instructionFound = false; |
| 172 | for (int instructionIndex = 0; instructionIndex < jsonCriteria.size(); instructionIndex++) { |
| 173 | final InstructionJsonMatcher instructionMatcher = |
| 174 | InstructionJsonMatcher.matchesInstruction(instruction); |
| 175 | if (instructionMatcher.matches(jsonInstructions.get(instructionIndex))) { |
| 176 | instructionFound = true; |
| 177 | break; |
| 178 | } |
| 179 | } |
| 180 | if (!instructionFound) { |
| 181 | description.appendText("instruction not found " + instruction.toString()); |
| 182 | return false; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | // Check constraints |
| 187 | final JsonNode jsonConstraints = jsonIntent.get("constraints"); |
| 188 | if (connectivityIntent.constraints() != null) { |
| 189 | if (connectivityIntent.constraints().size() != jsonConstraints.size()) { |
| 190 | description.appendText("constraints array size was " |
| 191 | + Integer.toString(jsonConstraints.size())); |
| 192 | return false; |
| 193 | } |
| 194 | for (final Constraint constraint : connectivityIntent.constraints()) { |
| 195 | boolean constraintFound = false; |
| 196 | final String constraintString = constraint.toString(); |
| 197 | for (int constraintIndex = 0; constraintIndex < jsonConstraints.size(); |
| 198 | constraintIndex++) { |
| 199 | final JsonNode value = jsonConstraints.get(constraintIndex); |
| 200 | if (value.asText().equals(constraintString)) { |
| 201 | constraintFound = true; |
| 202 | } |
| 203 | } |
| 204 | if (!constraintFound) { |
| 205 | description.appendText("resource missing " + constraintString); |
| 206 | return false; |
| 207 | } |
| 208 | } |
| 209 | } else if (jsonConstraints.size() != 0) { |
| 210 | description.appendText("constraint array not empty"); |
| 211 | return false; |
| 212 | } |
| 213 | |
| 214 | if (connectivityIntent instanceof HostToHostIntent) { |
| 215 | return matchHostToHostIntent(jsonIntent, description); |
| 216 | } else if (connectivityIntent instanceof PointToPointIntent) { |
| 217 | return matchPointToPointIntent(jsonIntent, description); |
| 218 | } else { |
| 219 | description.appendText("class of connectivity intent is unknown"); |
| 220 | return false; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | @Override |
| 225 | public boolean matchesSafely(JsonNode jsonIntent, Description description) { |
| 226 | // check id |
| 227 | final String jsonId = jsonIntent.get("id").asText(); |
| 228 | final String id = intent.id().toString(); |
| 229 | if (!jsonId.equals(id)) { |
| 230 | description.appendText("id was " + jsonId); |
| 231 | return false; |
| 232 | } |
| 233 | |
| 234 | // check application id |
| 235 | final String jsonAppId = jsonIntent.get("appId").asText(); |
| 236 | final String appId = intent.appId().toString(); |
| 237 | if (!jsonAppId.equals(appId)) { |
| 238 | description.appendText("appId was " + jsonAppId); |
| 239 | return false; |
| 240 | } |
| 241 | |
| 242 | // check intent type |
| 243 | final String jsonType = jsonIntent.get("type").asText(); |
| 244 | final String type = intent.getClass().getSimpleName(); |
| 245 | if (!jsonType.equals(type)) { |
| 246 | description.appendText("type was " + jsonType); |
| 247 | return false; |
| 248 | } |
| 249 | |
| 250 | // check details field |
| 251 | final String jsonDetails = jsonIntent.get("details").asText(); |
| 252 | final String details = intent.toString(); |
| 253 | if (!jsonDetails.equals(details)) { |
| 254 | description.appendText("details were " + jsonDetails); |
| 255 | return false; |
| 256 | } |
| 257 | |
| 258 | // check resources array |
| 259 | final JsonNode jsonResources = jsonIntent.get("resources"); |
| 260 | if (intent.resources() != null) { |
| 261 | if (intent.resources().size() != jsonResources.size()) { |
| 262 | description.appendText("resources array size was " |
| 263 | + Integer.toString(jsonResources.size())); |
| 264 | return false; |
| 265 | } |
| 266 | for (final NetworkResource resource : intent.resources()) { |
| 267 | boolean resourceFound = false; |
| 268 | final String resourceString = resource.toString(); |
| 269 | for (int resourceIndex = 0; resourceIndex < jsonResources.size(); resourceIndex++) { |
| 270 | final JsonNode value = jsonResources.get(resourceIndex); |
| 271 | if (value.asText().equals(resourceString)) { |
| 272 | resourceFound = true; |
| 273 | } |
| 274 | } |
| 275 | if (!resourceFound) { |
| 276 | description.appendText("resource missing " + resourceString); |
| 277 | return false; |
| 278 | } |
| 279 | } |
| 280 | } else if (jsonResources.size() != 0) { |
| 281 | description.appendText("resources array empty"); |
| 282 | return false; |
| 283 | } |
| 284 | |
| 285 | if (intent instanceof ConnectivityIntent) { |
| 286 | return matchConnectivityIntent(jsonIntent, description); |
| 287 | } else { |
| 288 | description.appendText("class of intent is unknown"); |
| 289 | return false; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | @Override |
| 294 | public void describeTo(Description description) { |
| 295 | description.appendText(intent.toString()); |
| 296 | } |
| 297 | |
| 298 | /** |
| 299 | * Factory to allocate an intent matcher. |
| 300 | * |
| 301 | * @param intent intent object we are looking for |
| 302 | * @return matcher |
| 303 | */ |
| 304 | public static IntentJsonMatcher matchesIntent(Intent intent) { |
| 305 | return new IntentJsonMatcher(intent); |
| 306 | } |
| 307 | } |