2 * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
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4 * This program and the accompanying materials are made available under the
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5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
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6 * and is available at http://www.eclipse.org/legal/epl-v10.html
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9 package org.opendaylight.openflowjava.protocol.impl.util;
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11 import io.netty.buffer.ByteBuf;
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13 import java.util.ArrayList;
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14 import java.util.List;
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16 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
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17 import org.opendaylight.openflowjava.protocol.api.extensibility.HeaderDeserializer;
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18 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
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19 import org.opendaylight.yangtools.yang.binding.DataObject;
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22 * @author michal.polkorab
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25 public final class ListDeserializer {
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27 private ListDeserializer() {
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28 throw new UnsupportedOperationException("Utility class shouldn't be instantiated");
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32 * Deserializes items into list
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33 * @param version openflow wire version
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34 * @param length length of list in ByteBuf (bytes)
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35 * @param input input buffer
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36 * @param keyMaker creates keys for deserializer lookup
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37 * @param registry stores deserializers
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38 * @return list of items
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40 public static <E extends DataObject> List<E> deserializeList(short version, int length,
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41 ByteBuf input, CodeKeyMaker keyMaker, DeserializerRegistry registry) {
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42 List<E> items = null;
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43 if (input.readableBytes() > 0) {
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44 items = new ArrayList<>();
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45 int startIndex = input.readerIndex();
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46 while ((input.readerIndex() - startIndex) < length){
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47 OFDeserializer<E> deserializer = registry.getDeserializer(keyMaker.make(input));
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48 E item = deserializer.deserialize(input);
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56 * Deserializes headers of items into list
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57 * @param version openflow wire version
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58 * @param length length of list in ByteBuf (bytes)
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59 * @param input input buffer
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60 * @param keyMaker creates keys for deserializer lookup
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61 * @param registry stores deserializers
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62 * @return list of items
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64 public static <E extends DataObject> List<E> deserializeHeaders(short version, int length,
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65 ByteBuf input, CodeKeyMaker keyMaker, DeserializerRegistry registry) {
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66 List<E> items = null;
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67 if (input.readableBytes() > 0) {
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68 items = new ArrayList<>();
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69 int startIndex = input.readerIndex();
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70 while ((input.readerIndex() - startIndex) < length){
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71 HeaderDeserializer<E> deserializer = registry.getDeserializer(keyMaker.make(input));
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72 E item = deserializer.deserializeHeader(input);
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