+/*
+ * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.protocol.bgp.linkstate.attribute.sr;
+
+import io.netty.buffer.ByteBuf;
+import java.util.BitSet;
+import org.opendaylight.protocol.util.ByteArray;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.prefix.state.SrPrefix;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.prefix.state.SrPrefixBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.rev150206.Algorithm;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.rev150206.PrefixSid.Flags;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.rev150206.SidLabel;
+
+public class SrPrefixAttributesParser {
+
+ private static final int FLAGS_SIZE = 1;
+
+ /* Flags */
+ private static final int RE_ADVERTISEMENT = 7;
+ private static final int NODE_SID = 6;
+ private static final int NO_PHP = 5;
+ private static final int EXPLICIT_NULL = 4;
+ private static final int VALUE = 3;
+ private static final int LOCAL = 2;
+
+ public static SrPrefix parseSrPrefix(final ByteBuf buffer) {
+ final BitSet flags = BitSet.valueOf(ByteArray.readBytes(buffer, FLAGS_SIZE));
+ final SrPrefixBuilder builder = new SrPrefixBuilder();
+ builder.setFlags(new Flags(flags.get(EXPLICIT_NULL), flags.get(LOCAL), flags.get(NO_PHP), flags.get(NODE_SID), flags.get(RE_ADVERTISEMENT), flags.get(VALUE)));
+ builder.setAlgorithm(Algorithm.forValue(buffer.readUnsignedByte()));
+ builder.setSid(new SidLabel(ByteArray.readAllBytes(buffer)));
+ return builder.build();
+ }
+
+ public static void serializeSrPrefix(final SrPrefix srPrefix, final ByteBuf buffer) {
+ final Flags flags = srPrefix.getFlags();
+ final BitSet bs = new BitSet(FLAGS_SIZE);
+ if (flags.isReadvertisement() != null) {
+ bs.set(RE_ADVERTISEMENT, flags.isReadvertisement());
+ }
+ if (flags.isNodeSid() != null) {
+ bs.set(NODE_SID, flags.isNodeSid());
+ }
+ if (flags.isNoPhp() != null) {
+ bs.set(NO_PHP, flags.isNoPhp());
+ }
+ if (flags.isExplicitNull() != null) {
+ bs.set(EXPLICIT_NULL, flags.isExplicitNull());
+ }
+ if (flags.isValue() != null) {
+ bs.set(VALUE, flags.isValue());
+ }
+ if (flags.isLocal() != null) {
+ bs.set(LOCAL, flags.isLocal());
+ }
+ buffer.writeBytes(bs.toByteArray());
+ buffer.writeByte(srPrefix.getAlgorithm().getIntValue());
+ buffer.writeBytes(srPrefix.getSid().getValue());
+ }
+}