[ONOS-2592] Interface for BGP peer connection initiation

Change-Id: If5b2d055f8ecc71172bb92cf0f8c3361eff427eb

+/*
+ * 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.bgp.controller;
+
+import java.util.concurrent.ExecutorService;
+
+/**
+ * Abstraction of an BGP connect peer, initiate remote connection to BGP peer on configuration.
+ */
+public interface BGPConnectPeer {
+
+    /**
+     * Returns the executor initialized to connect peer.
+     *
+     * @return connectExecutor the connection executor
+     */
+    ExecutorService connectExecutor();
+}