ONOS-2622
Fix error of north app and update onos-app-vtnrsc package

Change-Id: I375002ff26d2ab3ada879a92a1d47bcdb8980054
diff --git a/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/SecurityGroup.java b/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/SecurityGroup.java
new file mode 100644
index 0000000..7f09806
--- /dev/null
+++ b/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/SecurityGroup.java
@@ -0,0 +1,77 @@
+/*

+ * Copyright 2015 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.vtnrsc;

+

+import java.util.Objects;

+

+import static com.google.common.base.MoreObjects.toStringHelper;

+import static com.google.common.base.Preconditions.checkNotNull;

+

+/**

+ * Immutable representation of a security group.

+ */

+public final class SecurityGroup {

+    private final String securityGroup;

+

+    /**

+     * Returns the securityGroup.

+     *

+     * @return securityGroup

+     */

+    public String securityGroup() {

+        return securityGroup;

+    }

+    // Public construction is prohibited

+    private SecurityGroup(String securityGroup) {

+        checkNotNull(securityGroup, "SecurityGroup cannot be null");

+        this.securityGroup = securityGroup;

+    }

+

+    /**

+     * Creates a securityGroup using the supplied securityGroup.

+     *

+     * @param securityGroup security group

+     * @return securityGroup

+     */

+    public static SecurityGroup securityGroup(String securityGroup) {

+        return new SecurityGroup(securityGroup);

+    }

+

+    @Override

+    public int hashCode() {

+        return Objects.hash(securityGroup);

+    }

+

+    @Override

+    public boolean equals(Object obj) {

+        if (this == obj) {

+            return true;

+        }

+        if (obj instanceof SecurityGroup) {

+            final SecurityGroup that = (SecurityGroup) obj;

+            return this.getClass() == that.getClass()

+                    && Objects.equals(this.securityGroup, that.securityGroup);

+        }

+        return false;

+    }

+

+    @Override

+    public String toString() {

+        return toStringHelper(this).add("securityGroup", securityGroup)

+                .toString();

+    }

+

+}