[ONOS-5241] Add CLI to VPLS

Change-Id: I2d90a6370babea0538eb063b21ca29b49deb425f
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/cli/VplsAddCommand.java b/apps/vpls/src/main/java/org/onosproject/vpls/cli/VplsAddCommand.java
new file mode 100644
index 0000000..ffeb81f
--- /dev/null
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/cli/VplsAddCommand.java
@@ -0,0 +1,48 @@
+/*
+ * 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.vpls.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.vpls.config.VplsConfigurationService;
+
+import java.util.HashSet;
+
+/**
+ * CLI to create VPLSs.
+ */
+@Command(scope = "onos", name = "vpls-add", description = "Create a new VPLS")
+public class VplsAddCommand extends AbstractShellCommand {
+    private static final String VPLS_EXIST = "VPLS already exists: %s";
+    private VplsConfigurationService vplsConfigService =
+            get(VplsConfigurationService.class);
+
+    @Argument(index = 0, name = "vplsName", description = "Name of the VPLS",
+            required = true, multiValued = false)
+    private String vplsName = null;
+
+    @Override
+    protected void execute() {
+
+        if (vplsConfigService.getAllVpls().contains(vplsName)) {
+            print(VPLS_EXIST, vplsName);
+            return;
+        }
+        vplsConfigService.addVpls(vplsName, new HashSet<>());
+    }
+}