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/*
* Copyright 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.util.Spliterator;
import java.util.Spliterators;
import java.util.stream.StreamSupport;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import org.onosproject.codec.JsonCodec;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.Device;
import org.onosproject.net.DeviceId;
import org.onosproject.net.Link;
import org.onosproject.net.device.DeviceService;
import org.onosproject.net.device.PortStatistics;
import org.onosproject.net.flow.FlowRuleService;
import org.onosproject.net.flow.TableStatisticsEntry;
import org.onosproject.net.link.LinkService;
import org.onosproject.net.statistic.Load;
import org.onosproject.net.statistic.StatisticService;
import org.onosproject.rest.AbstractWebResource;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import static org.onosproject.net.DeviceId.deviceId;
import static org.onosproject.net.PortNumber.portNumber;
/**
* Query flow statistics.
*/
@Path("statistics")
public class StatisticsWebResource extends AbstractWebResource {
@Context
UriInfo uriInfo;
/**
* Get load statistics for all links or for a specific link.
* @rsModel StatisticsFlowsLink
* @param deviceId (optional) device ID for a specific link
* @param port (optional) port number for a specified link
* @return JSON encoded array lof Load objects
*/
@GET
@Path("flows/link")
@Produces(MediaType.APPLICATION_JSON)
public Response getLoads(@QueryParam("device") String deviceId,
@QueryParam("port") String port) {
Iterable<Link> links;
if (deviceId == null || port == null) {
links = get(LinkService.class).getLinks();
} else {
ConnectPoint connectPoint = new ConnectPoint(deviceId(deviceId),
portNumber(port));
links = get(LinkService.class).getLinks(connectPoint);
}
ObjectNode result = mapper().createObjectNode();
ArrayNode loads = mapper().createArrayNode();
JsonCodec<Load> loadCodec = codec(Load.class);
StatisticService statsService = getService(StatisticService.class);
StreamSupport.stream(Spliterators.spliteratorUnknownSize(
links.iterator(), Spliterator.ORDERED), false)
.forEach(link -> {
ObjectNode loadNode = loadCodec.encode(statsService.load(link), this);
UriBuilder locationBuilder = uriInfo.getBaseUriBuilder()
.path("links")
.queryParam("device", link.src().deviceId().toString())
.queryParam("port", link.src().port().toString());
loadNode.put("link", locationBuilder.build().toString());
loads.add(loadNode);
});
result.set("loads", loads);
return ok(result).build();
}
/**
* Get table statistics for all tables of all devices.
* @rsModel StatisticsFlowsTables
* @return JSON encoded array of table statistics
*/
@GET
@Path("flows/tables")
@Produces(MediaType.APPLICATION_JSON)
public Response getTableStatistics() {
final FlowRuleService service = get(FlowRuleService.class);
final Iterable<Device> devices = get(DeviceService.class).getDevices();
final ObjectNode root = mapper().createObjectNode();
final ArrayNode rootArrayNode = root.putArray("statistics");
for (final Device device : devices) {
final ObjectNode deviceStatsNode = mapper().createObjectNode();
deviceStatsNode.put("device", device.id().toString());
final ArrayNode statisticsNode = deviceStatsNode.putArray("table");
final Iterable<TableStatisticsEntry> tableStatsEntries = service.getFlowTableStatistics(device.id());
if (tableStatsEntries != null) {
for (final TableStatisticsEntry entry : tableStatsEntries) {
statisticsNode.add(codec(TableStatisticsEntry.class).encode(entry, this));
}
}
rootArrayNode.add(deviceStatsNode);
}
return ok(root).build();
}
/**
* Get table statistics for all tables of a specified device.
* @rsModel StatisticsFlowsTables
* @param deviceId device ID
* @return JSON encoded array of table statistics
*/
@GET
@Path("flows/tables/{deviceId}")
@Produces(MediaType.APPLICATION_JSON)
public Response getTableStatisticsByDeviceId(@PathParam("deviceId") String deviceId) {
final FlowRuleService service = get(FlowRuleService.class);
final Iterable<TableStatisticsEntry> tableStatisticsEntries =
service.getFlowTableStatistics(DeviceId.deviceId(deviceId));
final ObjectNode root = mapper().createObjectNode();
final ArrayNode rootArrayNode = root.putArray("statistics");
final ObjectNode deviceStatsNode = mapper().createObjectNode();
deviceStatsNode.put("device", deviceId);
final ArrayNode statisticsNode = deviceStatsNode.putArray("table");
for (final TableStatisticsEntry entry : tableStatisticsEntries) {
statisticsNode.add(codec(TableStatisticsEntry.class).encode(entry, this));
}
rootArrayNode.add(deviceStatsNode);
return ok(root).build();
}
/**
* Get port statistics of all devices.
* @rsModel StatisticsPorts
* @return JSON encoded array of port statistics
*/
@GET
@Path("ports")
@Produces(MediaType.APPLICATION_JSON)
public Response getPortStatistics() {
final DeviceService service = get(DeviceService.class);
final Iterable<Device> devices = service.getDevices();
final ObjectNode root = mapper().createObjectNode();
final ArrayNode rootArrayNode = root.putArray("statistics");
for (final Device device : devices) {
final ObjectNode deviceStatsNode = mapper().createObjectNode();
deviceStatsNode.put("device", device.id().toString());
final ArrayNode statisticsNode = deviceStatsNode.putArray("ports");
final Iterable<PortStatistics> portStatsEntries = service.getPortStatistics(device.id());
if (portStatsEntries != null) {
for (final PortStatistics entry : portStatsEntries) {
statisticsNode.add(codec(PortStatistics.class).encode(entry, this));
}
}
rootArrayNode.add(deviceStatsNode);
}
return ok(root).build();
}
/**
* Get port statistics of a specified devices.
* @rsModel StatisticsPorts
* @param deviceId device ID
* @return JSON encoded array of port statistics
*/
@GET
@Path("ports/{deviceId}")
@Produces(MediaType.APPLICATION_JSON)
public Response getPortStatisticsByDeviceId(@PathParam("deviceId") String deviceId) {
final DeviceService service = get(DeviceService.class);
final Iterable<PortStatistics> portStatsEntries =
service.getPortStatistics(DeviceId.deviceId(deviceId));
final ObjectNode root = mapper().createObjectNode();
final ArrayNode rootArrayNode = root.putArray("statistics");
final ObjectNode deviceStatsNode = mapper().createObjectNode();
deviceStatsNode.put("device", deviceId);
final ArrayNode statisticsNode = deviceStatsNode.putArray("ports");
if (portStatsEntries != null) {
for (final PortStatistics entry : portStatsEntries) {
statisticsNode.add(codec(PortStatistics.class).encode(entry, this));
}
}
rootArrayNode.add(deviceStatsNode);
return ok(root).build();
}
}
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