Rename Meter,AddMeter,GetFlowStatistics,GetStatistics

Change-Id: Ifdc7fb422f7e2bb4135ab24bae0f8d9541432e0c
diff --git a/cli/src/main/java/org/onosproject/cli/net/GetStatisticsCommand.java b/cli/src/main/java/org/onosproject/cli/net/GetStatisticsCommand.java
new file mode 100644
index 0000000..7b5abd7
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/net/GetStatisticsCommand.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2014-present 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 org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+
+import org.onosproject.net.statistic.Load;
+import org.onosproject.net.statistic.StatisticService;
+
+
+import static org.onosproject.net.DeviceId.deviceId;
+import static org.onosproject.net.PortNumber.portNumber;
+
+/**
+ * Fetches statistics.
+ */
+@Command(scope = "onos", name = "get-stats",
+         description = "Fetches stats for a connection point")
+public class GetStatisticsCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "connectPoint",
+              description = "Device/Port Description",
+              required = true, multiValued = false)
+    String connectPoint = null;
+
+
+    @Override
+    protected void execute() {
+        StatisticService service = get(StatisticService.class);
+
+        DeviceId ingressDeviceId = deviceId(getDeviceId(connectPoint));
+        PortNumber ingressPortNumber = portNumber(getPortNumber(connectPoint));
+        ConnectPoint cp = new ConnectPoint(ingressDeviceId, ingressPortNumber);
+
+        Load load = service.load(cp);
+
+        print("Load on %s -> %s", cp, load);
+    }
+
+    /**
+     * 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);
+    }
+}