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.subobject;
10 import io.netty.buffer.ByteBuf;
12 import org.opendaylight.protocol.pcep.impl.object.EROSubobjectUtil;
13 import org.opendaylight.protocol.pcep.spi.EROSubobjectParser;
14 import org.opendaylight.protocol.pcep.spi.EROSubobjectSerializer;
15 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
16 import org.opendaylight.protocol.util.ByteArray;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PathKey;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PceId;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.Subobject;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.SubobjectBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.subobject.subobject.type.PathKeyCase;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.subobject.subobject.type.PathKeyCaseBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.subobject.subobject.type.path.key._case.PathKeyBuilder;
25 import com.google.common.base.Preconditions;
28 * Parser for {@link PathKey}
30 public class EROPathKey32SubobjectParser implements EROSubobjectParser, EROSubobjectSerializer {
32 public static final int TYPE = 64;
34 private static final int PK_F_LENGTH = 2;
35 private static final int PCE_ID_F_LENGTH = 4;
37 private static final int PK_F_OFFSET = 0;
38 private static final int PCE_ID_F_OFFSET = PK_F_OFFSET + PK_F_LENGTH;
40 private static final int CONTENT_LENGTH = PCE_ID_F_OFFSET + PCE_ID_F_LENGTH;
43 public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
44 Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
45 if (buffer.readableBytes() != CONTENT_LENGTH) {
46 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + "; Expected: >"
47 + CONTENT_LENGTH + ".");
49 final int pathKey = buffer.readUnsignedShort();
50 final byte[] pceId = ByteArray.readBytes(buffer, PCE_ID_F_LENGTH);
51 final SubobjectBuilder builder = new SubobjectBuilder();
52 final PathKeyBuilder pBuilder = new PathKeyBuilder();
53 pBuilder.setPceId(new PceId(pceId));
54 pBuilder.setPathKey(new PathKey(pathKey));
55 builder.setLoose(loose);
56 builder.setSubobjectType(new PathKeyCaseBuilder().setPathKey(pBuilder.build()).build());
57 return builder.build();
61 public byte[] serializeSubobject(final Subobject subobject) {
62 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.subobject.subobject.type.path.key._case.PathKey pk = ((PathKeyCase) subobject.getSubobjectType()).getPathKey();
63 final int pathKey = pk.getPathKey().getValue();
64 final byte[] pceId = pk.getPceId().getBinary();
65 final byte[] retBytes = new byte[PK_F_LENGTH + pceId.length];
66 System.arraycopy(ByteArray.shortToBytes((short) pathKey), 0, retBytes, PK_F_OFFSET, PK_F_LENGTH);
67 System.arraycopy(pceId, 0, retBytes, PCE_ID_F_OFFSET, pceId.length);
68 return EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), retBytes);