Interfaces added for PCEP messages and PCEP Controller
Change-Id: Id678b6832b42bcf4a437322996244d224c4052d0
diff --git a/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java b/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java
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+++ b/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java
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+/*
+ * 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.pcep.controller;
+
+import java.util.List;
+
+import org.onosproject.pcepio.protocol.PcepMessage;
+
+/**
+ * Abstraction of an Pcep controller. Serves as a one stop
+ * shop for obtaining Pcep devices and (un)register listeners
+ * on pcep events
+ */
+public interface PcepClientController {
+
+ /**
+ * Returns list of pcc clients connected to this Pcep controller.
+ *
+ * @return list of PcepClient elements
+ */
+ public List<PcepClient> getClients();
+
+ /**
+ * Returns the actual pcc client for the given ip address.
+ *
+ * @param pccId the id of the pcc client to fetch
+ * @return the interface to this pcc client
+ */
+ public PcepClient getClient(PccId pccId);
+
+ /**
+ * Register a listener for meta events that occur to pcep
+ * devices.
+ *
+ * @param listener the listener to notify
+ */
+ public void addListener(PcepClientListener listener);
+
+ /**
+ * Unregister a listener.
+ *
+ * @param listener the listener to unregister
+ */
+ public void removeListener(PcepClientListener listener);
+
+ /**
+ * Register a listener for OF msg events.
+ *
+ * @param listener the listener to notify
+ */
+ public void addEventListener(PcepEventListener listener);
+
+ /**
+ * Unregister a listener.
+ *
+ * @param listener the listener to unregister
+ */
+ public void removeEventListener(PcepEventListener listener);
+
+ /**
+ * Send a message to a particular pcc client.
+ *
+ * @param pccId the id of the client to send message.
+ * @param msg the message to send
+ */
+ public void writeMessage(PccId pccId, PcepMessage msg);
+
+ /**
+ * Process a message and notify the appropriate listeners.
+ *
+ * @param pccId id of the client the message arrived on
+ * @param msg the message to process.
+ */
+ public void processClientMessage(PccId pccId, PcepMessage msg);
+
+ /**
+ * Close all connected PCC clients.
+ */
+ public void closeConnectedClients();
+}