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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.cli.net;
import static com.google.common.collect.Lists.newArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
import org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.commands.Option;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.cli.Comparators;
import org.onosproject.net.Device;
import org.onosproject.net.DeviceId;
import org.onosproject.net.device.DeviceService;
import org.onosproject.net.flow.FlowRuleService;
import org.onosproject.net.flow.TableStatisticsEntry;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
/**
* Lists port statistic of all ports in the system.
*/
@Command(scope = "onos", name = "tablestats",
description = "Lists statistics of all tables in the device")
public class TableStatisticsCommand extends AbstractShellCommand {
@Option(name = "-t", aliases = "--table", description = "Show human readable table format for statistics",
required = false, multiValued = false)
private boolean table = false;
@Argument(index = 0, name = "uri", description = "Device ID",
required = false, multiValued = false)
String uri = null;
private static final String FORMAT =
" table=%s, active=%s, lookedup=%s, matched=%s";
@Override
protected void execute() {
FlowRuleService flowService = get(FlowRuleService.class);
DeviceService deviceService = get(DeviceService.class);
SortedMap<Device, List<TableStatisticsEntry>> deviceTableStats =
getSortedTableStats(deviceService, flowService);
if (outputJson()) {
print("%s", json(deviceTableStats.keySet(), deviceTableStats));
} else {
deviceTableStats.forEach((device, tableStats) -> printTableStats(device, tableStats));
}
}
/**
* Produces a JSON array of table statistics grouped by the each device.
*
* @param devices collection of devices
* @param deviceTableStats collection of table statistics per each device
* @return JSON array
*/
private JsonNode json(Iterable<Device> devices,
Map<Device, List<TableStatisticsEntry>> deviceTableStats) {
ObjectMapper mapper = new ObjectMapper();
ArrayNode result = mapper.createArrayNode();
for (Device device : devices) {
result.add(json(mapper, device, deviceTableStats.get(device)));
}
return result;
}
// Produces JSON object with the table statistics of the given device.
private ObjectNode json(ObjectMapper mapper,
Device device, List<TableStatisticsEntry> tableStats) {
ObjectNode result = mapper.createObjectNode();
ArrayNode array = mapper.createArrayNode();
tableStats.forEach(tableStat -> array.add(jsonForEntity(tableStat, TableStatisticsEntry.class)));
result.put("device", device.id().toString())
.put("tableCount", tableStats.size())
.set("tables", array);
return result;
}
/**
* Prints flow table statistics.
*
* @param d the device
* @param tableStats the set of flow table statistics for that device
*/
protected void printTableStats(Device d,
List<TableStatisticsEntry> tableStats) {
boolean empty = tableStats == null || tableStats.isEmpty();
print("deviceId=%s, tableCount=%d", d.id(), empty ? 0 : tableStats.size());
if (!empty) {
for (TableStatisticsEntry t : tableStats) {
print(FORMAT, t.tableId(), t.activeFlowEntries(),
t.packetsLookedup(), t.packetsMatched());
}
}
}
/**
* Returns the list of table statistics sorted using the device ID URIs and table IDs.
*
* @param deviceService device service
* @param flowService flow rule service
* @return sorted table statistics list
*/
protected SortedMap<Device, List<TableStatisticsEntry>> getSortedTableStats(DeviceService deviceService,
FlowRuleService flowService) {
SortedMap<Device, List<TableStatisticsEntry>> deviceTableStats = new TreeMap<>(Comparators.ELEMENT_COMPARATOR);
List<TableStatisticsEntry> tableStatsList;
Iterable<Device> devices = uri == null ? deviceService.getDevices() :
Collections.singletonList(deviceService.getDevice(DeviceId.deviceId(uri)));
for (Device d : devices) {
tableStatsList = newArrayList(flowService.getFlowTableStatistics(d.id()));
tableStatsList.sort((p1, p2) -> Integer.valueOf(p1.tableId()).compareTo(Integer.valueOf(p2.tableId())));
deviceTableStats.put(d, tableStatsList);
}
return deviceTableStats;
}
}
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