adding push-test-intents command to test intent performance

+package org.onlab.onos.cli.net;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.onos.cli.AbstractShellCommand;
+import org.onlab.onos.net.ConnectPoint;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.PortNumber;
+import org.onlab.onos.net.flow.DefaultTrafficSelector;
+import org.onlab.onos.net.flow.DefaultTrafficTreatment;
+import org.onlab.onos.net.flow.TrafficSelector;
+import org.onlab.onos.net.flow.TrafficTreatment;
+import org.onlab.onos.net.intent.Intent;
+import org.onlab.onos.net.intent.IntentEvent;
+import org.onlab.onos.net.intent.IntentEvent.Type;
+import org.onlab.onos.net.intent.IntentId;
+import org.onlab.onos.net.intent.IntentListener;
+import org.onlab.onos.net.intent.IntentService;
+import org.onlab.onos.net.intent.PointToPointIntent;
+import org.onlab.packet.Ethernet;
+import org.onlab.packet.MacAddress;
+
+/**
+ * Installs point-to-point connectivity intents.
+ */
+@Command(scope = "onos", name = "push-test-intents",
+         description = "Installs random intents to test throughput")
+public class IntentPushTestCommand extends AbstractShellCommand
+    implements IntentListener {
+
+    @Argument(index = 0, name = "ingressDevice",
+              description = "Ingress Device/Port Description",
+              required = true, multiValued = false)
+    String ingressDeviceString = null;
+
+    @Argument(index = 1, name = "egressDevice",
+              description = "Egress Device/Port Description",
+              required = true, multiValued = false)
+    String egressDeviceString = null;
+
+    @Argument(index = 2, name = "count",
+            description = "Number of intents to push",
+            required = true, multiValued = false)
+    String countString = null;
+
+
+    private static long id = 0x7870001;
+
+    private IntentService service;
+    private CountDownLatch latch;
+    private long start, end;
+
+    @Override
+    protected void execute() {
+        service = get(IntentService.class);
+
+        DeviceId ingressDeviceId = DeviceId.deviceId(getDeviceId(ingressDeviceString));
+        PortNumber ingressPortNumber =
+                PortNumber.portNumber(getPortNumber(ingressDeviceString));
+        ConnectPoint ingress = new ConnectPoint(ingressDeviceId, ingressPortNumber);
+
+        DeviceId egressDeviceId = DeviceId.deviceId(getDeviceId(egressDeviceString));
+        PortNumber egressPortNumber =
+                PortNumber.portNumber(getPortNumber(egressDeviceString));
+        ConnectPoint egress = new ConnectPoint(egressDeviceId, egressPortNumber);
+
+        TrafficSelector.Builder selector = DefaultTrafficSelector.builder()
+                .matchEthType(Ethernet.TYPE_IPV4);
+        TrafficTreatment treatment = DefaultTrafficTreatment.builder().build();
+
+        int count = Integer.parseInt(countString);
+
+        service.addListener(this);
+        start = System.currentTimeMillis();
+        for (int i = 0; i < count; i++) {
+            TrafficSelector s = selector
+                                .matchEthSrc(MacAddress.valueOf(i))
+                                .build();
+            Intent intent =
+                    new PointToPointIntent(new IntentId(id++),
+                                                     s,
+                                                     treatment,
+                                                     ingress,
+                                                     egress);
+            service.submit(intent);
+        }
+        latch = new CountDownLatch(count);
+        try {
+            latch.await(3, TimeUnit.SECONDS);
+            printResults(count);
+        } catch (InterruptedException e) {
+            print(e.toString());
+        }
+        service.removeListener(this);
+    }
+
+    private void printResults(int count) {
+        long delta = end - start;
+        print("Time to install %d intents: %d ms", count, delta);
+    }
+
+    /**
+     * Extracts the port number portion of the ConnectPoint.
+     *
+     * @param deviceString string representing the device/port
+     * @return port number as a string, empty string if the port is not found
+     */
+    private String getPortNumber(String deviceString) {
+        int slash = deviceString.indexOf('/');
+        if (slash <= 0) {
+            return "";
+        }
+        return deviceString.substring(slash + 1, deviceString.length());
+    }
+
+    /**
+     * Extracts the device ID portion of the ConnectPoint.
+     *
+     * @param deviceString string representing the device/port
+     * @return device ID string
+     */
+    private String getDeviceId(String deviceString) {
+        int slash = deviceString.indexOf('/');
+        if (slash <= 0) {
+            return "";
+        }
+        return deviceString.substring(0, slash);
+    }
+
+    @Override
+    public void event(IntentEvent event) {
+        if (event.type() == Type.INSTALLED) {
+            end = event.time();
+            latch.countDown();
+        }
+    }
+}

@@ -82,6 +82,13 @@
                 <ref component-id="connectPointCompleter"/>
             </completers>
         </command>
+        <command>
+            <action class="org.onlab.onos.cli.net.IntentPushTestCommand"/>
+            <completers>
+                <ref component-id="connectPointCompleter"/>
+                <ref component-id="connectPointCompleter"/>
+            </completers>
+        </command>
 
         <command>
             <action class="org.onlab.onos.cli.net.ClustersListCommand"/>