Jian Li | e9ac2c5 | 2016-01-13 17:42:05 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016 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.rest.resources; |
| 17 | |
| 18 | import com.fasterxml.jackson.databind.JsonNode; |
| 19 | import com.fasterxml.jackson.databind.node.ObjectNode; |
| 20 | import org.onosproject.net.DeviceId; |
| 21 | import org.onosproject.net.flowobjective.FilteringObjective; |
| 22 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 23 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 24 | import org.onosproject.net.flowobjective.NextObjective; |
| 25 | import org.onosproject.rest.AbstractWebResource; |
| 26 | |
| 27 | import javax.ws.rs.Consumes; |
| 28 | import javax.ws.rs.GET; |
| 29 | import javax.ws.rs.POST; |
| 30 | import javax.ws.rs.Path; |
| 31 | import javax.ws.rs.PathParam; |
| 32 | import javax.ws.rs.Produces; |
| 33 | import javax.ws.rs.core.MediaType; |
| 34 | import javax.ws.rs.core.Response; |
| 35 | import java.io.IOException; |
| 36 | import java.io.InputStream; |
| 37 | import java.net.URI; |
| 38 | import java.net.URISyntaxException; |
| 39 | |
| 40 | /** |
| 41 | * Manage flow objectives. |
| 42 | */ |
| 43 | @Path("flowobjectives") |
| 44 | public class FlowObjectiveWebResource extends AbstractWebResource { |
| 45 | |
| 46 | public static final String DEVICE_INVALID = |
| 47 | "Invalid deviceId in objective creation request"; |
| 48 | public static final String POLICY_INVALID = "Invalid policy"; |
| 49 | |
| 50 | final FlowObjectiveService flowObjectiveService = get(FlowObjectiveService.class); |
| 51 | final ObjectNode root = mapper().createObjectNode(); |
| 52 | |
| 53 | /** |
| 54 | * Creates and installs a new filtering objective for the specified device. |
| 55 | * |
| 56 | * @param deviceId device identifier |
| 57 | * @param stream filtering objective JSON |
| 58 | * @return status of the request - CREATED if the JSON is correct, |
| 59 | * BAD_REQUEST if the JSON is invalid |
| 60 | * @onos.rsModel FilteringObjective |
| 61 | */ |
| 62 | @POST |
| 63 | @Path("{deviceId}/filter") |
| 64 | @Consumes(MediaType.APPLICATION_JSON) |
| 65 | @Produces(MediaType.APPLICATION_JSON) |
| 66 | public Response createFilteringObjective(@PathParam("deviceId") String deviceId, |
| 67 | InputStream stream) { |
| 68 | URI location = null; |
| 69 | try { |
| 70 | ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream); |
| 71 | if (validateDeviceId(deviceId, jsonTree)) { |
| 72 | DeviceId did = DeviceId.deviceId(deviceId); |
| 73 | FilteringObjective filteringObjective = |
| 74 | codec(FilteringObjective.class).decode(jsonTree, this); |
| 75 | flowObjectiveService.filter(did, filteringObjective); |
| 76 | location = new URI(Integer.toString(filteringObjective.id())); |
| 77 | } |
| 78 | } catch (IOException | URISyntaxException e) { |
| 79 | throw new IllegalArgumentException(e); |
| 80 | } |
| 81 | |
| 82 | return Response |
| 83 | .created(location) |
| 84 | .build(); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Creates and installs a new forwarding objective for the specified device. |
| 89 | * |
| 90 | * @param deviceId device identifier |
| 91 | * @param stream forwarding objective JSON |
| 92 | * @return status of the request - CREATED if the JSON is correct, |
| 93 | * BAD_REQUEST if the JSON is invalid |
| 94 | * @onos.rsModel ForwardingObjective |
| 95 | */ |
| 96 | @POST |
| 97 | @Path("{deviceId}/forward") |
| 98 | @Consumes(MediaType.APPLICATION_JSON) |
| 99 | @Produces(MediaType.APPLICATION_JSON) |
| 100 | public Response createForwardingObjective(@PathParam("deviceId") String deviceId, |
| 101 | InputStream stream) { |
| 102 | URI location = null; |
| 103 | try { |
| 104 | ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream); |
| 105 | if (validateDeviceId(deviceId, jsonTree)) { |
| 106 | DeviceId did = DeviceId.deviceId(deviceId); |
| 107 | ForwardingObjective forwardingObjective = |
| 108 | codec(ForwardingObjective.class).decode(jsonTree, this); |
| 109 | flowObjectiveService.forward(did, forwardingObjective); |
| 110 | location = new URI(Integer.toString(forwardingObjective.id())); |
| 111 | } |
| 112 | } catch (IOException | URISyntaxException e) { |
| 113 | throw new IllegalArgumentException(e); |
| 114 | } |
| 115 | |
| 116 | return Response |
| 117 | .created(location) |
| 118 | .build(); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Creates and installs a new next objective for the specified device. |
| 123 | * |
| 124 | * @param deviceId device identifier |
| 125 | * @param stream next objective JSON |
| 126 | * @return status of the request - CREATED if the JSON is correct, |
| 127 | * BAD_REQUEST if the JSON is invalid |
| 128 | * @onos.rsModel NextObjective |
| 129 | */ |
| 130 | @POST |
| 131 | @Path("{deviceId}/next") |
| 132 | @Consumes(MediaType.APPLICATION_JSON) |
| 133 | @Produces(MediaType.APPLICATION_JSON) |
| 134 | public Response createNextObjective(@PathParam("deviceId") String deviceId, |
| 135 | InputStream stream) { |
| 136 | URI location = null; |
| 137 | try { |
| 138 | ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream); |
| 139 | if (validateDeviceId(deviceId, jsonTree)) { |
| 140 | DeviceId did = DeviceId.deviceId(deviceId); |
| 141 | NextObjective nextObjective = |
| 142 | codec(NextObjective.class).decode(jsonTree, this); |
| 143 | flowObjectiveService.next(did, nextObjective); |
| 144 | location = new URI(Integer.toString(nextObjective.id())); |
| 145 | } |
| 146 | } catch (IOException | URISyntaxException e) { |
| 147 | throw new IllegalArgumentException(e); |
| 148 | } |
| 149 | |
| 150 | return Response |
| 151 | .created(location) |
| 152 | .build(); |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Returns the globally unique nextId. |
| 157 | * |
| 158 | * @return nextId |
| 159 | * @onos.rsModel nextid |
| 160 | */ |
| 161 | @GET |
| 162 | @Path("next") |
| 163 | @Produces(MediaType.APPLICATION_JSON) |
| 164 | public Response getNextId() { |
| 165 | root.put("nextId", flowObjectiveService.allocateNextId()); |
| 166 | return ok(root).build(); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Installs the filtering rules onto the specified device. |
| 171 | * |
| 172 | * @param stream filtering rule JSON |
| 173 | * @return status of the request |
| 174 | * @onos.rsModel ObjectivePolicy |
| 175 | */ |
| 176 | @POST |
| 177 | @Path("policy") |
| 178 | @Consumes(MediaType.APPLICATION_JSON) |
| 179 | @Produces(MediaType.APPLICATION_JSON) |
| 180 | public void initPolicy(InputStream stream) { |
| 181 | |
| 182 | try { |
| 183 | ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream); |
| 184 | JsonNode policyJson = jsonTree.get("policy"); |
| 185 | |
| 186 | if (policyJson == null || policyJson.asText().isEmpty()) { |
| 187 | throw new IllegalArgumentException(POLICY_INVALID); |
| 188 | } |
| 189 | |
| 190 | flowObjectiveService.initPolicy(policyJson.asText()); |
| 191 | } catch (IOException e) { |
| 192 | throw new IllegalArgumentException(e); |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * Validate the deviceId that is contained in json string against the |
| 198 | * input deviceId. |
| 199 | * |
| 200 | * @param deviceId device identifier |
| 201 | * @param node object node |
| 202 | * @return validity |
| 203 | */ |
| 204 | private boolean validateDeviceId(String deviceId, ObjectNode node) { |
| 205 | JsonNode specifiedDeviceId = node.get("deviceId"); |
| 206 | |
| 207 | if (specifiedDeviceId != null && |
| 208 | !specifiedDeviceId.asText().equals(deviceId)) { |
| 209 | throw new IllegalArgumentException(DEVICE_INVALID); |
| 210 | } |
| 211 | return true; |
| 212 | } |
| 213 | } |