CLI command that shows all subnets configured in Segment Routing

Change-Id: Ib03ec2039b763f3796548923883fc89913a1ceac

apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java

@@ -15,6 +15,7 @@
  */
 package org.onosproject.segmentrouting;
 
+import com.google.common.collect.Maps;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
@@ -454,6 +455,15 @@ public class SegmentRoutingManager implements SegmentRoutingService {
         defaultRoutingHandler.startPopulationProcess();
     }
 
+    @Override
+    public Map<DeviceId, Set<Ip4Prefix>> getDeviceSubnetMap() {
+        Map<DeviceId, Set<Ip4Prefix>> deviceSubnetMap = Maps.newHashMap();
+        deviceService.getAvailableDevices().forEach(device -> {
+            deviceSubnetMap.put(device.id(), deviceConfiguration.getSubnets(device.id()));
+        });
+        return deviceSubnetMap;
+    }
+
     /**
      * Returns the tunnel object with the tunnel ID.
      *

apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/SegmentRoutingService.java

@@ -15,7 +15,12 @@
  */
 package org.onosproject.segmentrouting;
 
+import org.onlab.packet.Ip4Prefix;
+import org.onosproject.net.DeviceId;
+
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 /**
  * Segment Routing Service for REST API.
@@ -109,4 +114,11 @@ public interface SegmentRoutingService {
      *
      */
     void rerouteNetwork();
+
+    /**
+     * Returns device-subnet mapping.
+     *
+     * @return device-subnet mapping
+     */
+    Map<DeviceId, Set<Ip4Prefix>> getDeviceSubnetMap();
 }

apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/cli/DeviceSubnetListCommand.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016-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.segmentrouting.cli;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.packet.Ip4Prefix;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.DeviceId;
+import org.onosproject.segmentrouting.SegmentRoutingService;
+
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Command to list device-subnet mapping in Segment Routing.
+ */
+@Command(scope = "onos", name = "sr-device-subnets",
+        description = "List device-subnet mapping in Segment Routing")
+public class DeviceSubnetListCommand extends AbstractShellCommand {
+    @Override
+    protected void execute() {
+        SegmentRoutingService srService =
+                AbstractShellCommand.get(SegmentRoutingService.class);
+        printDeviceSubnetMap(srService.getDeviceSubnetMap());
+    }
+
+    private void printDeviceSubnetMap(Map<DeviceId, Set<Ip4Prefix>> deviceSubnetMap) {
+        deviceSubnetMap.forEach(((deviceId, ip4Prefices) -> {
+            print("%s", deviceId);
+            ip4Prefices.forEach(ip4Prefix -> {
+                print("    %s", ip4Prefix);
+            });
+        }));
+    }
+}

apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/cli/RerouteNetworkCommand.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016-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.segmentrouting.cli;
 
 

apps/segmentrouting/src/main/resources/OSGI-INF/blueprint/shell-config.xml

@@ -37,6 +37,9 @@
         <command>
             <action class="org.onosproject.segmentrouting.cli.RerouteNetworkCommand"/>
         </command>
+        <command>
+            <action class="org.onosproject.segmentrouting.cli.DeviceSubnetListCommand"/>
+        </command>
     </command-bundle>
 </blueprint>