[onos-2603] - Implement LinkState Link attributes-MPLS protocol mask
Change-Id: Ib0d8d098a5ecb77f98df60a6f6d6cfd8bd121c75
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java
new file mode 100755
index 0000000..61143fa
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java
@@ -0,0 +1,152 @@
+/*
+ * 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;
+
+/**
+ * Implements BGP MPLS protocol mask attribute.
+ */
+public class BgpLinkAttrMplsProtocolMask implements BGPValueType {
+
+ protected static final Logger log = LoggerFactory
+ .getLogger(BgpLinkAttrMplsProtocolMask.class);
+
+ public static final int ATTRLINK_MPLSPROTOMASK = 1094;
+ public static final int MASK_BYTE_LEN = 1;
+
+ private final boolean bLdp;
+ private final boolean bRsvpTe;
+
+ public static final byte FIRST_BIT = (byte) 0x80;
+ public static final byte SECOND_BIT = 0x40;
+
+ /**
+ * Constructor to initialize the values.
+ *
+ * @param bLdp boolean value true if LDP flag is available
+ * @param bRsvpTe boolean value true if RSVP TE information is available
+ */
+ public BgpLinkAttrMplsProtocolMask(boolean bLdp, boolean bRsvpTe) {
+ this.bLdp = bLdp;
+ this.bRsvpTe = bRsvpTe;
+ }
+
+ /**
+ * Returns object of this class with specified values.
+ *
+ * @param bLdp boolean value true if LDP flag is available
+ * @param bRsvpTe boolean value true if RSVP TE information is available
+ * @return object of BgpLinkAttrMplsProtocolMask
+ */
+ public static BgpLinkAttrMplsProtocolMask of(final boolean bLdp,
+ final boolean bRsvpTe) {
+ return new BgpLinkAttrMplsProtocolMask(bLdp, bRsvpTe);
+ }
+
+ /**
+ * Reads the BGP link attributes MPLS protocol mask.
+ *
+ * @param cb Channel buffer
+ * @return object of type BgpLinkAttrMPLSProtocolMask
+ * @throws BGPParseException while parsing BgpLinkAttrMplsProtocolMask
+ */
+ public static BgpLinkAttrMplsProtocolMask read(ChannelBuffer cb)
+ throws BGPParseException {
+ boolean bLdp = false;
+ boolean bRsvpTe = false;
+
+ short lsAttrLength = cb.readShort();
+
+ if ((lsAttrLength != MASK_BYTE_LEN)
+ || (cb.readableBytes() < lsAttrLength)) {
+ Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
+ BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
+ lsAttrLength);
+ }
+
+ byte flags = cb.readByte();
+
+ bLdp = ((flags & (byte) FIRST_BIT) == FIRST_BIT);
+ bRsvpTe = ((flags & (byte) SECOND_BIT) == SECOND_BIT);
+
+ return BgpLinkAttrMplsProtocolMask.of(bLdp, bRsvpTe);
+ }
+
+ /**
+ * Returns true if LDP bit is set.
+ *
+ * @return True if LDP information is set else false.
+ */
+ public boolean ldpBit() {
+ return bLdp;
+ }
+
+ /**
+ * Returns RSVP TE information.
+ *
+ * @return True if RSVP TE information is set else false.
+ */
+ public boolean rsvpBit() {
+ return bRsvpTe;
+ }
+
+ @Override
+ public short getType() {
+ return ATTRLINK_MPLSPROTOMASK;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(bLdp, bRsvpTe);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof BgpLinkAttrMplsProtocolMask) {
+ BgpLinkAttrMplsProtocolMask other = (BgpLinkAttrMplsProtocolMask) obj;
+ return Objects.equals(bLdp, other.bLdp)
+ && Objects.equals(bRsvpTe, other.bRsvpTe);
+ }
+ 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())
+ .add("bLdp", bLdp).add("bRsvpTe", bRsvpTe).toString();
+ }
+}