| /* |
| * Copyright 2014-2015 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.rest.resources; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.stream.StreamSupport; |
| |
| import javax.ws.rs.Consumes; |
| import javax.ws.rs.DELETE; |
| import javax.ws.rs.GET; |
| import javax.ws.rs.POST; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| |
| import org.onlab.util.ItemNotFoundException; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.flow.FlowEntry; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.FlowRuleService; |
| import org.onosproject.rest.AbstractWebResource; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| /** |
| * REST resource for interacting with the inventory of flows. |
| */ |
| |
| @Path("flows") |
| public class FlowsWebResource extends AbstractWebResource { |
| public static final String DEVICE_NOT_FOUND = "Device is not found"; |
| |
| final FlowRuleService service = get(FlowRuleService.class); |
| final ObjectNode root = mapper().createObjectNode(); |
| final ArrayNode flowsNode = root.putArray("flows"); |
| |
| /** |
| * Gets an array containing all the intents in the system. |
| * |
| * @return array of all the intents in the system |
| */ |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response getFlows() { |
| |
| final Iterable<Device> devices = get(DeviceService.class).getDevices(); |
| for (final Device device : devices) { |
| final Iterable<FlowEntry> deviceEntries = service.getFlowEntries(device.id()); |
| if (deviceEntries != null) { |
| for (final FlowEntry entry : deviceEntries) { |
| flowsNode.add(codec(FlowEntry.class).encode(entry, this)); |
| } |
| } |
| } |
| |
| return ok(root).build(); |
| } |
| |
| /** |
| * Gets the flows for a device, where the device is specified by Id. |
| * |
| * @param deviceId Id of device to look up |
| * @return flow data as an array |
| */ |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("{deviceId}") |
| public Response getFlowByDeviceId(@PathParam("deviceId") String deviceId) { |
| final Iterable<FlowEntry> deviceEntries = |
| service.getFlowEntries(DeviceId.deviceId(deviceId)); |
| |
| if (!deviceEntries.iterator().hasNext()) { |
| throw new ItemNotFoundException(DEVICE_NOT_FOUND); |
| } |
| for (final FlowEntry entry : deviceEntries) { |
| flowsNode.add(codec(FlowEntry.class).encode(entry, this)); |
| } |
| return ok(root).build(); |
| } |
| |
| /** |
| * Gets the flows for a device, where the device is specified by Id. |
| * |
| * @param deviceId Id of device to look up |
| * @param flowId Id of flow to look up |
| * @return flow data as an array |
| */ |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("{deviceId}/{flowId}") |
| public Response getFlowByDeviceIdAndFlowId(@PathParam("deviceId") String deviceId, |
| @PathParam("flowId") long flowId) { |
| final Iterable<FlowEntry> deviceEntries = |
| service.getFlowEntries(DeviceId.deviceId(deviceId)); |
| |
| if (!deviceEntries.iterator().hasNext()) { |
| throw new ItemNotFoundException(DEVICE_NOT_FOUND); |
| } |
| for (final FlowEntry entry : deviceEntries) { |
| if (entry.id().value() == flowId) { |
| flowsNode.add(codec(FlowEntry.class).encode(entry, this)); |
| } |
| } |
| return ok(root).build(); |
| } |
| |
| /** |
| * Creates a flow rule from a POST of a JSON string and attempts to apply it. |
| * |
| * @param deviceId device identifier |
| * @param stream input JSON |
| * @return status of the request - CREATED if the JSON is correct, |
| * BAD_REQUEST if the JSON is invalid |
| */ |
| @POST |
| @Path("{deviceId}") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response createFlow(@PathParam("deviceId") String deviceId, |
| InputStream stream) { |
| URI location; |
| try { |
| FlowRuleService service = get(FlowRuleService.class); |
| ObjectNode root = (ObjectNode) mapper().readTree(stream); |
| JsonNode specifiedDeviceId = root.get("deviceId"); |
| if (specifiedDeviceId != null && |
| !specifiedDeviceId.asText().equals(deviceId)) { |
| throw new IllegalArgumentException( |
| "Invalid deviceId in flow creation request"); |
| } |
| root.put("deviceId", deviceId); |
| FlowRule rule = codec(FlowRule.class).decode(root, this); |
| service.applyFlowRules(rule); |
| location = new URI(Long.toString(rule.id().value())); |
| } catch (IOException | URISyntaxException ex) { |
| return Response.status(Response.Status.INTERNAL_SERVER_ERROR).build(); |
| } |
| return Response |
| .created(location) |
| .build(); |
| } |
| |
| /** |
| * Removes the flows for a given device with the given flow id. |
| * |
| * @param deviceId Id of device to look up |
| * @param flowId Id of flow to look up |
| */ |
| @DELETE |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("{deviceId}/{flowId}") |
| public void deleteFlowByDeviceIdAndFlowId(@PathParam("deviceId") String deviceId, |
| @PathParam("flowId") long flowId) { |
| final Iterable<FlowEntry> deviceEntries = |
| service.getFlowEntries(DeviceId.deviceId(deviceId)); |
| |
| if (!deviceEntries.iterator().hasNext()) { |
| throw new ItemNotFoundException(DEVICE_NOT_FOUND); |
| } |
| |
| StreamSupport.stream(deviceEntries.spliterator(), false) |
| .filter(entry -> entry.id().value() == flowId) |
| .forEach(service::removeFlowRules); |
| } |
| |
| } |