[ONOS-2602]Implement Adajacency RIB table

Change-Id: I930cf87894776fe1c4c3823dc079cfe7a0f77150

+/*
+ * 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.bgpio.protocol.linkstate;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Objects;
+
+import org.onosproject.bgpio.protocol.linkstate.BGPNodeLSNlriVer4.PROTOCOLTYPE;
+import org.onosproject.bgpio.types.BGPValueType;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * This Class stores path Attributes, protocol ID and Identifier of LinkState NLRI.
+ */
+public class PathAttrNlriDetails {
+    private List<BGPValueType> pathAttributes;
+    private PROTOCOLTYPE protocolID;
+    private long identifier;
+
+    /**
+     * Sets path attribute with specified path attribute.
+     *
+     * @param pathAttributes in update message
+     */
+    public void setPathAttribute(List<BGPValueType> pathAttributes) {
+        this.pathAttributes = pathAttributes;
+    }
+
+    /**
+     * Returns path attributes.
+     *
+     * @return path attributes
+     */
+    public List<BGPValueType> pathAttributes() {
+        return this.pathAttributes;
+    }
+
+    /**
+     * Sets protocolID with specified protocolID.
+     *
+     * @param protocolID in linkstate nlri
+     */
+    public void setProtocolID(PROTOCOLTYPE protocolID) {
+        this.protocolID = protocolID;
+    }
+
+    /**
+     * Returns protocolID.
+     *
+     * @return protocolID
+     */
+    public PROTOCOLTYPE protocolID() {
+        return this.protocolID;
+    }
+
+    /**
+     * Sets identifier with specified identifier.
+     *
+     * @param identifier in linkstate nlri
+     */
+    public void setIdentifier(long identifier) {
+        this.identifier = identifier;
+    }
+
+    /**
+     * Returns Identifier.
+     *
+     * @return Identifier
+     */
+    public long identifier() {
+        return this.identifier;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(pathAttributes, protocolID, identifier);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj instanceof PathAttrNlriDetails) {
+            int countObjSubTlv = 0;
+            int countOtherSubTlv = 0;
+            boolean isCommonSubTlv = true;
+            PathAttrNlriDetails other = (PathAttrNlriDetails) obj;
+            Iterator<BGPValueType> objListIterator = other.pathAttributes.iterator();
+            countOtherSubTlv = other.pathAttributes.size();
+            countObjSubTlv = pathAttributes.size();
+            if (countObjSubTlv != countOtherSubTlv) {
+                return false;
+            } else {
+                while (objListIterator.hasNext() && isCommonSubTlv) {
+                    BGPValueType subTlv = objListIterator.next();
+                    if (pathAttributes.contains(subTlv) && other.pathAttributes.contains(subTlv)) {
+                        isCommonSubTlv = Objects.equals(pathAttributes.get(pathAttributes.indexOf(subTlv)),
+                                other.pathAttributes.get(other.pathAttributes.indexOf(subTlv)));
+                    } else {
+                        isCommonSubTlv = false;
+                    }
+                }
+                return isCommonSubTlv && Objects.equals(identifier, other.identifier)
+                        && Objects.equals(protocolID, other.protocolID);
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("identifier", identifier)
+                .add("protocolID", protocolID)
+                .add("pathAttributes", pathAttributes)
+                .toString();
+    }
+}
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