2 * Copyright (c) 2013 Pantheon Technologies s.r.o. 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
9 package org.opendaylight.openflowjava.protocol.impl.util;
11 import io.netty.buffer.ByteBuf;
13 import java.util.ArrayList;
14 import java.util.List;
16 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
17 import org.opendaylight.openflowjava.protocol.api.extensibility.HeaderDeserializer;
18 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
19 import org.opendaylight.yangtools.yang.binding.DataObject;
22 * @author michal.polkorab
25 public final class ListDeserializer {
27 private ListDeserializer() {
28 throw new UnsupportedOperationException("Utility class shouldn't be instantiated");
32 * Deserializes items into list
33 * @param version openflow wire version
34 * @param length length of list in ByteBuf (bytes)
35 * @param input input buffer
36 * @param keyMaker creates keys for deserializer lookup
37 * @param registry stores deserializers
38 * @return list of items
40 public static <E extends DataObject> List<E> deserializeList(short version, int length,
41 ByteBuf input, CodeKeyMaker keyMaker, DeserializerRegistry registry) {
43 if (input.readableBytes() > 0) {
44 items = new ArrayList<>();
45 int startIndex = input.readerIndex();
46 while ((input.readerIndex() - startIndex) < length){
47 OFDeserializer<E> deserializer = registry.getDeserializer(keyMaker.make(input));
48 E item = deserializer.deserialize(input);
56 * Deserializes headers of items into list
57 * @param version openflow wire version
58 * @param length length of list in ByteBuf (bytes)
59 * @param input input buffer
60 * @param keyMaker creates keys for deserializer lookup
61 * @param registry stores deserializers
62 * @return list of items
64 public static <E extends DataObject> List<E> deserializeHeaders(short version, int length,
65 ByteBuf input, CodeKeyMaker keyMaker, DeserializerRegistry registry) {
67 if (input.readableBytes() > 0) {
68 items = new ArrayList<>();
69 int startIndex = input.readerIndex();
70 while ((input.readerIndex() - startIndex) < length){
71 HeaderDeserializer<E> deserializer = registry.getDeserializer(keyMaker.make(input));
72 E item = deserializer.deserializeHeader(input);