Interfaces added for PCEP messages and PCEP Controller
Change-Id: Id678b6832b42bcf4a437322996244d224c4052d0
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessageWriter.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessageWriter.java
new file mode 100755
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+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessageWriter.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.pcepio.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+
+/**
+ * Abstraction of an entity providing PCEP Message Writer.
+ */
+public interface PcepMessageWriter<T> {
+
+ /**
+ * Writes the Objects of the PCEP Message into Channel Buffer.
+ *
+ * @param bb Channel Buffer
+ * @param message PCEP Message
+ * @throws PcepParseException while writing PCEP message.
+ */
+ public void write(ChannelBuffer bb, T message) throws PcepParseException;
+}