Interfaces added for PCEP messages and PCEP Controller
Change-Id: Id678b6832b42bcf4a437322996244d224c4052d0
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepLabelObject.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepLabelObject.java
new file mode 100755
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--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepLabelObject.java
@@ -0,0 +1,176 @@
+/*
+ * 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 java.util.LinkedList;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.types.PcepObjectHeader;
+import org.onosproject.pcepio.types.PcepValueType;
+
+/**
+ * Abstraction of an entity providing PCEP Label Object.
+ */
+public interface PcepLabelObject {
+
+ /**
+ * Returns O flag in Label Object.
+ *
+ * @return Boolean value
+ */
+ boolean getOFlag();
+
+ /**
+ * Sets O flag in Label Object with specified value.
+ *
+ * @param value O flag
+ */
+ void setOFlag(boolean value);
+
+ /**
+ * Returns Label from Label Object.
+ *
+ * @return Label value
+ */
+ int getLabel();
+
+ /**
+ * Sets Label field in Label Object with specified value.
+ *
+ * @param value Label
+ */
+ void setLabel(int value);
+
+ /**
+ * Returns list of Optional Tlvs.
+ *
+ * @return list of Optional Tlvs
+ */
+ LinkedList<PcepValueType> getOptionalTlv();
+
+ /**
+ * Sets Optional Tlvs in Label Object.
+ *
+ * @param llOptionalTlv list of Optional Tlvs
+ */
+ void setOptionalTlv(LinkedList<PcepValueType> llOptionalTlv);
+
+ /**
+ * Prints attributes of Label object.
+ */
+ void print();
+
+ /**
+ * Writes the Label Object into channel buffer.
+ *
+ * @param bb channel buffer
+ * @return Returns the writerIndex of this buffer
+ * @throws PcepParseException while writing LABEL object into Channel Buffer.
+ */
+ int write(ChannelBuffer bb) throws PcepParseException;
+
+ /**
+ * Builder interface with get and set functions to build Label object.
+ */
+ public interface Builder {
+
+ /**
+ * Builds Label Object.
+ *
+ * @return Label Object
+ * @throws PcepParseException while building LABEL object.
+ */
+ PcepLabelObject build() throws PcepParseException;
+
+ /**
+ * Returns Label object header.
+ *
+ * @return Label object header
+ */
+ PcepObjectHeader getLabelObjHeader();
+
+ /**
+ * Sets Label object header and returns its builder.
+ *
+ * @param obj Label object header
+ * @return Builder by setting Label object header
+ */
+ Builder setLabelObjHeader(PcepObjectHeader obj);
+
+ /**
+ * Returns O flag in Label Object.
+ *
+ * @return Label value
+ */
+ boolean getOFlag();
+
+ /**
+ * Sets O flag and return its builder.
+ *
+ * @param value O flag
+ * @return Builder by setting O flag
+ */
+ Builder setOFlag(boolean value);
+
+ /**
+ * Returns Label from Label Object.
+ *
+ * @return Label value
+ */
+ int getLabel();
+
+ /**
+ * Sets Label field and return its builder.
+ *
+ * @param value Label field
+ * @return Builder by setting Label field
+ */
+ Builder setLabel(int value);
+
+ /**
+ * Returns list of Optional Tlvs.
+ *
+ * @return list of Optional Tlvs
+ */
+ LinkedList<PcepValueType> getOptionalTlv();
+
+ /**
+ * Sets list of Optional Tlvs and return its builder.
+ *
+ * @param llOptionalTlv list of Optional Tlvs
+ * @return Builder by setting list of Optional Tlvs
+ */
+ Builder setOptionalTlv(LinkedList<PcepValueType> llOptionalTlv);
+
+ /**
+ * Sets P flag in Label object header and returns its builder.
+ *
+ * @param value boolean value to set P flag
+ * @return Builder by setting P flag
+ */
+ public Builder setPFlag(boolean value);
+
+ /**
+ * Sets I flag in Label object header and returns its builder.
+ *
+ * @param value boolean value to set I flag
+ * @return Builder by setting I flag
+ */
+ public Builder setIFlag(boolean value);
+ }
+}