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.impl.object;
10 import com.google.common.base.Preconditions;
11 import com.google.common.primitives.UnsignedBytes;
13 import io.netty.buffer.ByteBuf;
15 import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
16 import org.opendaylight.protocol.pcep.spi.ObjectUtil;
17 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
18 import org.opendaylight.protocol.pcep.spi.TlvRegistry;
19 import org.opendaylight.protocol.util.ByteArray;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.load.balancing.object.LoadBalancing;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.load.balancing.object.LoadBalancingBuilder;
27 * Parser for {@link LoadBalancing}
29 public class PCEPLoadBalancingObjectParser extends AbstractObjectWithTlvsParser<LoadBalancingBuilder> {
31 public static final int CLASS = 14;
33 public static final int TYPE = 1;
35 private static final int FLAGS_F_LENGTH = 1;
36 private static final int MAX_LSP_F_LENGTH = 1;
37 private static final int MIN_BAND_F_LENGTH = 4;
39 private static final int FLAGS_F_OFFSET = 2;
40 private static final int MAX_LSP_F_OFFSET = FLAGS_F_OFFSET + FLAGS_F_LENGTH;
41 private static final int MIN_BAND_F_OFFSET = MAX_LSP_F_OFFSET + MAX_LSP_F_LENGTH;
43 private static final int SIZE = MIN_BAND_F_OFFSET + MIN_BAND_F_LENGTH;
45 public PCEPLoadBalancingObjectParser(final TlvRegistry tlvReg) {
50 public LoadBalancing parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
51 Preconditions.checkArgument(bytes != null && bytes.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
52 if (bytes.readableBytes() != SIZE) {
53 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.readableBytes() + "; Expected: " + SIZE
56 final LoadBalancingBuilder builder = new LoadBalancingBuilder();
57 builder.setIgnore(header.isIgnore());
58 builder.setProcessingRule(header.isProcessingRule());
59 bytes.readerIndex(bytes.readerIndex() + MAX_LSP_F_OFFSET);
60 builder.setMaxLsp((short) UnsignedBytes.toInt(bytes.readByte()));
61 builder.setMinBandwidth(new Bandwidth(ByteArray.readBytes(bytes, MIN_BAND_F_LENGTH)));
62 return builder.build();
66 public byte[] serializeObject(final Object object) {
67 if (!(object instanceof LoadBalancing)) {
68 throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass()
69 + ". Needed LoadBalancingObject.");
71 final LoadBalancing specObj = (LoadBalancing) object;
72 final byte[] retBytes = new byte[SIZE];
73 retBytes[MAX_LSP_F_OFFSET] = UnsignedBytes.checkedCast(specObj.getMaxLsp());
74 ByteArray.copyWhole(specObj.getMinBandwidth().getValue(), retBytes, MIN_BAND_F_OFFSET);
75 return ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), retBytes);