[Emu][onos-2603] - Implement LinkState Link attributes-Prefix IGP Flag
Change-Id: Ib77b12114d6576162ca9eb5a3c221f2300dc111b
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIGPFlags.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIGPFlags.java
new file mode 100755
index 0000000..035d706
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIGPFlags.java
@@ -0,0 +1,180 @@
+/*
+ * 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 prefix IGP Flag attribute.
+ */
+public class BgpPrefixAttrIGPFlags implements BGPValueType {
+
+ protected static final Logger log = LoggerFactory
+ .getLogger(BgpPrefixAttrIGPFlags.class);
+
+ public static final int ATTR_PREFIX_FLAGBIT = 1152;
+ public static final int ATTR_PREFIX_FLAG_LEN = 1;
+
+ public static final int FIRST_BIT = 0x80;
+ public static final int SECOND_BIT = 0x40;
+ public static final int THIRD_BIT = 0x20;
+ public static final int FOURTH_BIT = 0x01;
+
+ /* Prefix IGP flag bit TLV */
+ private boolean bisisUpDownBit = false;
+ private boolean bOspfNoUnicastBit = false;
+ private boolean bOspfLclAddrBit = false;
+ private boolean bOspfNSSABit = false;
+
+ /**
+ * Constructor to initialize the value.
+ *
+ * @param bisisUpDownBit IS-IS Up/Down Bit
+ * @param bOspfNoUnicastBit OSPF no unicast Bit
+ * @param bOspfLclAddrBit OSPF local address Bit
+ * @param bOspfNSSABit OSPF propagate NSSA Bit
+ */
+ BgpPrefixAttrIGPFlags(boolean bisisUpDownBit, boolean bOspfNoUnicastBit,
+ boolean bOspfLclAddrBit, boolean bOspfNSSABit) {
+ this.bisisUpDownBit = bisisUpDownBit;
+ this.bOspfNoUnicastBit = bOspfNoUnicastBit;
+ this.bOspfLclAddrBit = bOspfLclAddrBit;
+ this.bOspfNSSABit = bOspfNSSABit;
+ }
+
+ /**
+ * Reads the IGP Flags.
+ *
+ * @param cb ChannelBuffer
+ * @return object of BgpPrefixAttrIGPFlags
+ * @throws BGPParseException while parsing BgpPrefixAttrIGPFlags
+ */
+ public static BgpPrefixAttrIGPFlags read(ChannelBuffer cb)
+ throws BGPParseException {
+ boolean bisisUpDownBit = false;
+ boolean bOspfNoUnicastBit = false;
+ boolean bOspfLclAddrBit = false;
+ boolean bOspfNSSABit = false;
+
+ short lsAttrLength = cb.readShort();
+
+ if ((lsAttrLength != ATTR_PREFIX_FLAG_LEN)
+ || (cb.readableBytes() < lsAttrLength)) {
+ Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
+ BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
+ lsAttrLength);
+ }
+
+ byte nodeFlagBits = cb.readByte();
+
+ bisisUpDownBit = ((nodeFlagBits & (byte) FIRST_BIT) == FIRST_BIT);
+ bOspfNoUnicastBit = ((nodeFlagBits & (byte) SECOND_BIT) == SECOND_BIT);
+ bOspfLclAddrBit = ((nodeFlagBits & (byte) THIRD_BIT) == THIRD_BIT);
+ bOspfNSSABit = ((nodeFlagBits & (byte) FOURTH_BIT) == FOURTH_BIT);
+
+ return new BgpPrefixAttrIGPFlags(bisisUpDownBit, bOspfNoUnicastBit,
+ bOspfLclAddrBit, bOspfNSSABit);
+ }
+
+ /**
+ * Returns the IS-IS Up/Down Bit set or not.
+ *
+ * @return IS-IS Up/Down Bit set or not
+ */
+ boolean getisisUpDownBit() {
+ return bisisUpDownBit;
+ }
+
+ /**
+ * Returns the OSPF no unicast Bit set or not.
+ *
+ * @return OSPF no unicast Bit set or not
+ */
+ boolean getOspfNoUnicastBit() {
+ return bOspfNoUnicastBit;
+ }
+
+ /**
+ * Returns the OSPF local address Bit set or not.
+ *
+ * @return OSPF local address Bit set or not
+ */
+ boolean getOspfLclAddrBit() {
+ return bOspfLclAddrBit;
+ }
+
+ /**
+ * Returns the OSPF propagate NSSA Bit set or not.
+ *
+ * @return OSPF propagate NSSA Bit set or not
+ */
+ boolean getOspfNSSABit() {
+ return bOspfNSSABit;
+ }
+
+ @Override
+ public short getType() {
+ return ATTR_PREFIX_FLAGBIT;
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) {
+ // TODO This will be implemented in the next version
+ return 0;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(bisisUpDownBit, bOspfNoUnicastBit, bOspfLclAddrBit,
+ bOspfNSSABit);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof BgpPrefixAttrIGPFlags) {
+ BgpPrefixAttrIGPFlags other = (BgpPrefixAttrIGPFlags) obj;
+ return Objects.equals(bisisUpDownBit, other.bisisUpDownBit)
+ && Objects.equals(bOspfNoUnicastBit,
+ other.bOspfNoUnicastBit)
+ && Objects.equals(bOspfLclAddrBit, other.bOspfLclAddrBit)
+ && Objects.equals(bOspfNSSABit, other.bOspfNSSABit);
+ }
+ return false;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("bisisUpDownBit", bisisUpDownBit)
+ .add("bOspfNoUnicastBit", bOspfNoUnicastBit)
+ .add("bOspfLclAddrBit", bOspfLclAddrBit)
+ .add("bOspfNSSABit", bOspfNSSABit).toString();
+ }
+}