2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.protocol.bgp.parser.impl.message.update;
10 import com.google.common.base.Preconditions;
11 import com.google.common.primitives.UnsignedBytes;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
15 import org.opendaylight.protocol.bgp.parser.BGPError;
16 import org.opendaylight.protocol.bgp.parser.spi.AttributeParser;
17 import org.opendaylight.protocol.bgp.parser.spi.AttributeSerializer;
18 import org.opendaylight.protocol.bgp.parser.spi.AttributeUtil;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.PathAttributes;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Origin;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.OriginBuilder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributesBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpOrigin;
24 import org.opendaylight.yangtools.yang.binding.DataObject;
26 public final class OriginAttributeParser implements AttributeParser, AttributeSerializer {
28 public static final int TYPE = 1;
31 public void parseAttribute(final ByteBuf buffer, final PathAttributesBuilder builder) throws BGPDocumentedException {
32 final byte rawOrigin = buffer.readByte();
33 final BgpOrigin borigin = BgpOrigin.forValue(UnsignedBytes.toInt(rawOrigin));
34 if (borigin == null) {
35 throw new BGPDocumentedException("Unknown Origin type.", BGPError.ORIGIN_ATTR_NOT_VALID, new byte[] { (byte) 0x01, (byte) 0x01, rawOrigin} );
37 builder.setOrigin(new OriginBuilder().setValue(borigin).build());
41 public void serializeAttribute(final DataObject attribute, final ByteBuf byteAggregator) {
42 Preconditions.checkArgument(attribute instanceof PathAttributes, "Attribute parameter is not a PathAttribute object.");
43 final Origin origin = ((PathAttributes) attribute).getOrigin();
47 AttributeUtil.formatAttribute(AttributeUtil.TRANSITIVE, TYPE, Unpooled.wrappedBuffer(new byte[] {UnsignedBytes.checkedCast(origin.getValue().getIntValue())}), byteAggregator);