FlowsWebResource.java
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/*
* 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;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
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.FlowRuleService;
import javax.ws.rs.GET;
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;
/**
* 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();
}
}