Initial implementation of managing IPs for kubevirt spawned VMIs

Change-Id: I68127e1fe42a142765e7696d8ce80de16d3d94a9
diff --git a/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/cli/KubevirtListIpAddressCommand.java b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/cli/KubevirtListIpAddressCommand.java
new file mode 100644
index 0000000..343997b
--- /dev/null
+++ b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/cli/KubevirtListIpAddressCommand.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+ *
+ * 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.kubevirtnetworking.cli;
+
+import com.google.common.collect.ImmutableList;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Completion;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.onlab.packet.IpAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.kubevirtnetworking.api.KubevirtIpPool;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetwork;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetworkService;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_IP_ADDRESS_AVAILABILITY;
+import static org.onosproject.kubevirtnetworking.api.Constants.CLI_IP_ADDRESS_LENGTH;
+import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.genFormatString;
+
+/**
+ * Lists all IP addresses.
+ */
+@Service
+@Command(scope = "onos", name = "kubevirt-ips",
+        description = "Lists all IP addresses")
+public class KubevirtListIpAddressCommand extends AbstractShellCommand {
+
+    @Argument(name = "networkId", description = "Network ID")
+    @Completion(KubevirtNetworkIdCompleter.class)
+    private String networkId = null;
+
+    @Override
+    protected void doExecute() throws Exception {
+        KubevirtNetworkService service = get(KubevirtNetworkService.class);
+        KubevirtNetwork network = service.network(networkId);
+
+        if (network == null) {
+            print("No network was found with the given network ID");
+            return;
+        }
+
+        KubevirtIpPool pool = network.ipPool();
+        if (pool == null) {
+            print("No IP pool was found with the given network ID");
+            return;
+        }
+
+        String format = genFormatString(ImmutableList.of(
+                CLI_IP_ADDRESS_LENGTH, CLI_IP_ADDRESS_AVAILABILITY));
+        print(format, "IP Address", "Availability");
+
+        List<IpAddress> sortedAllocatedIps = new ArrayList<>(pool.allocatedIps());
+        Collections.sort(sortedAllocatedIps);
+        for (IpAddress ip : sortedAllocatedIps) {
+            print(format, ip.toString(), "[ X ]");
+        }
+
+        List<IpAddress> sortedAvailableIps = new ArrayList<>(pool.availableIps());
+        Collections.sort(sortedAvailableIps);
+        for (IpAddress ip : sortedAvailableIps) {
+            print(format, ip.toString(), "[ O ]");
+        }
+    }
+}