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.pcep.parser.subobject;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedInt;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import org.opendaylight.protocol.pcep.spi.EROSubobjectParser;
16 import org.opendaylight.protocol.pcep.spi.EROSubobjectSerializer;
17 import org.opendaylight.protocol.pcep.spi.EROSubobjectUtil;
18 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
19 import org.opendaylight.protocol.util.ByteBufUtils;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.explicit.route.object.ero.Subobject;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.explicit.route.object.ero.SubobjectBuilder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.UnnumberedSubobject;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.UnnumberedCase;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.UnnumberedCaseBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.basic.explicit.route.subobjects.subobject.type.unnumbered._case.UnnumberedBuilder;
28 * Parser for {@link UnnumberedCase}.
30 public class EROUnnumberedInterfaceSubobjectParser implements EROSubobjectParser, EROSubobjectSerializer {
32 public static final int TYPE = 4;
34 private static final int RESERVED = 2;
36 private static final int CONTENT_LENGTH = 10;
39 public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
40 checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Cannot be null or empty.");
41 if (buffer.readableBytes() != CONTENT_LENGTH) {
42 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
43 + "; Expected: " + CONTENT_LENGTH + ".");
45 buffer.skipBytes(RESERVED);
46 final UnnumberedBuilder ubuilder = new UnnumberedBuilder()
47 .setRouterId(ByteBufUtils.readUint32(buffer))
48 .setInterfaceId(ByteBufUtils.readUint32(buffer));
49 final SubobjectBuilder builder = new SubobjectBuilder()
51 .setSubobjectType(new UnnumberedCaseBuilder().setUnnumbered(ubuilder.build()).build());
52 return builder.build();
56 public void serializeSubobject(final Subobject subobject, final ByteBuf buffer) {
57 checkArgument(subobject.getSubobjectType() instanceof UnnumberedCase,
58 "Unknown subobject instance. Passed %s. Needed UnnumberedCase.", subobject.getSubobjectType().getClass());
59 final UnnumberedSubobject specObj = ((UnnumberedCase) subobject.getSubobjectType()).getUnnumbered();
60 final ByteBuf body = Unpooled.buffer(CONTENT_LENGTH);
61 body.writeZero(RESERVED);
62 checkArgument(specObj.getRouterId() != null, "RouterId is mandatory.");
63 writeUnsignedInt(specObj.getRouterId(), body);
64 checkArgument(specObj.getInterfaceId() != null, "InterfaceId is mandatory");
65 writeUnsignedInt(specObj.getInterfaceId(), body);
66 EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), body, buffer);