[onos-2603] - Implement LinkState Link attributes-Opaque Link attr
Change-Id: Idfc1f7a5f9f54234b6f0f7c7f50c14f6f3f76b57
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrOpaqLnkAttrib.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrOpaqLnkAttrib.java
new file mode 100755
index 0000000..258598b
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrOpaqLnkAttrib.java
@@ -0,0 +1,133 @@
+/*
+ * 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.Arrays;
+
+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;
+
+/**
+ * Implements BGP link opaque attribute.
+ */
+public final class BgpLinkAttrOpaqLnkAttrib implements BGPValueType {
+
+ protected static final Logger log = LoggerFactory
+ .getLogger(BgpLinkAttrOpaqLnkAttrib.class);
+
+ public static final int ATTRNODE_OPAQUELNKATTRIB = 1097;
+
+ /* Opaque Node Attribute */
+ private final byte[] opaqueLinkAttribute;
+
+ /**
+ * Constructor to initialize the data.
+ *
+ * @param opaqueLinkAttribute opaque link attribute
+ */
+ private BgpLinkAttrOpaqLnkAttrib(byte[] opaqueLinkAttribute) {
+ this.opaqueLinkAttribute = Arrays.copyOf(opaqueLinkAttribute,
+ opaqueLinkAttribute.length);
+ }
+
+ /**
+ * Returns object of this class with specified values.
+ *
+ * @param opaqueLinkAttribute opaque link attribute
+ * @return object of BgpLinkAttrOpaqLnkAttrib
+ */
+ public static BgpLinkAttrOpaqLnkAttrib of(final byte[] opaqueLinkAttribute) {
+ return new BgpLinkAttrOpaqLnkAttrib(opaqueLinkAttribute);
+ }
+
+ /**
+ * Reads the BGP link attributes Opaque link attribute.
+ *
+ * @param cb Channel buffer
+ * @return object of type BgpLinkAttrOpaqLnkAttrib
+ * @throws BGPParseException while parsing BgpLinkAttrOpaqLnkAttrib
+ */
+ public static BgpLinkAttrOpaqLnkAttrib read(ChannelBuffer cb)
+ throws BGPParseException {
+
+ byte[] opaqueLinkAttribute;
+
+ short lsAttrLength = cb.readShort();
+
+ if (cb.readableBytes() < lsAttrLength) {
+ Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
+ BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
+ lsAttrLength);
+ }
+
+ opaqueLinkAttribute = new byte[lsAttrLength];
+ cb.readBytes(opaqueLinkAttribute);
+
+ return BgpLinkAttrOpaqLnkAttrib.of(opaqueLinkAttribute);
+ }
+
+ /**
+ * Returns the Opaque link attribute.
+ *
+ * @return byte array of opaque link attribute.
+ */
+ public byte[] attrOpaqueLnk() {
+ return opaqueLinkAttribute;
+ }
+
+ @Override
+ public short getType() {
+ return ATTRNODE_OPAQUELNKATTRIB;
+ }
+
+ @Override
+ public int hashCode() {
+ return Arrays.hashCode(opaqueLinkAttribute);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof BgpLinkAttrOpaqLnkAttrib) {
+ BgpLinkAttrOpaqLnkAttrib other = (BgpLinkAttrOpaqLnkAttrib) obj;
+ return Arrays
+ .equals(opaqueLinkAttribute, other.opaqueLinkAttribute);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) {
+ // TODO This will be implemented in the next version
+ return 0;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).omitNullValues()
+ .add("opaqueLinkAttribute", opaqueLinkAttribute).toString();
+ }
+}