[Emu] [ONOS-2603] Implement BGP Update Protocol Message and parse all Link State atrributes of Node and Prefix
Change-Id: I51f3cdbf273e7b82d1cccb21c9b2de83aba3a95d
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java
new file mode 100644
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+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java
@@ -0,0 +1,127 @@
+/*
+ * 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.types.attr;
+
+import java.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BGPParseException;
+import org.onosproject.bgpio.types.BGPErrorType;
+import org.onosproject.bgpio.types.BGPValueType;
+import org.onosproject.bgpio.util.Validation;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * BGP Multi-Topology ID of the LS attribute.
+ */
+public class BgpAttrNodeMultiTopologyId implements BGPValueType {
+
+ private static final Logger log = LoggerFactory
+ .getLogger(BgpAttrNodeMultiTopologyId.class);
+
+ public static final int ATTRNODE_MULTITOPOLOGY = 263;
+
+ /* Opaque Node Attribute */
+ private short[] multiTopologyId;
+
+ /**
+ * Constructor to initialize the Node attribute multi-topology ID.
+ *
+ * @param multiTopologyId multi-topology ID
+ */
+ BgpAttrNodeMultiTopologyId(short[] multiTopologyId) {
+ this.multiTopologyId = multiTopologyId;
+ }
+
+ /**
+ * Reads the Multi-topology ID of Node attribute.
+ *
+ * @param cb ChannelBuffer
+ * @return Constructor of BgpAttrNodeMultiTopologyId
+ * @throws BGPParseException while parsing BgpAttrNodeMultiTopologyId
+ */
+ public static BgpAttrNodeMultiTopologyId read(ChannelBuffer cb)
+ throws BGPParseException {
+
+ log.debug("BgpAttrNodeMultiTopologyId");
+ short lsAttrLength = cb.readShort();
+ int len = lsAttrLength / 2; // Length is 2*n and n is the number of MT-IDs
+
+ if (cb.readableBytes() < lsAttrLength) {
+ Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
+ BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
+ cb.readableBytes());
+ }
+
+ short[] multiTopologyId;
+ multiTopologyId = new short[len];
+ for (int i = 0; i < len; i++) {
+ multiTopologyId[i] = cb.readShort();
+ }
+
+ return new BgpAttrNodeMultiTopologyId(multiTopologyId);
+ }
+
+ /**
+ * to get the multi-topology ID.
+ *
+ * @return multitopology ID
+ */
+ short[] getAttrMultiTopologyId() {
+ return multiTopologyId;
+ }
+
+ @Override
+ public short getType() {
+ return ATTRNODE_MULTITOPOLOGY;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(multiTopologyId);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof BgpAttrNodeMultiTopologyId) {
+ BgpAttrNodeMultiTopologyId other = (BgpAttrNodeMultiTopologyId) obj;
+ return Objects.equals(multiTopologyId, other.multiTopologyId);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) {
+ // TODO Auto-generated method stub
+ return 0;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .omitNullValues()
+ .add("multiTopologyId", multiTopologyId)
+ .toString();
+ }
+}
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