1 files changed, 145 insertions, 0 deletions
diff --git a/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/TableStatisticsCommand.java b/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/TableStatisticsCommand.java
new file mode 100644
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--- /dev/null
+++ b/framework/src/onos/cli/src/main/java/org/onosproject/cli/net/TableStatisticsCommand.java
@@ -0,0 +1,145 @@
+/*
+ * 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;
+    }
+
+}