| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.net.resource; |
| |
| import com.esotericsoftware.kryo.Kryo; |
| import com.esotericsoftware.kryo.Serializer; |
| import com.esotericsoftware.kryo.io.Input; |
| import com.esotericsoftware.kryo.io.Output; |
| import com.google.common.annotations.Beta; |
| import com.google.common.collect.DiscreteDomain; |
| import com.google.common.collect.Range; |
| import com.google.common.collect.TreeRangeSet; |
| import org.onlab.util.ClosedOpenRange; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| |
| /** |
| * Kryo serializer for {@link DiscreteResourceSet}. |
| */ |
| @Beta |
| public final class DiscreteResourceSetSerializer extends Serializer<DiscreteResourceSet> { |
| |
| public DiscreteResourceSetSerializer() { |
| super(false, true); |
| } |
| |
| @Override |
| public void write(Kryo kryo, Output output, DiscreteResourceSet object) { |
| TreeRangeSet<Integer> rangeSet = TreeRangeSet.create(); |
| object.values().stream() |
| .map(x -> object.codec().encode(x)) |
| .map(Range::singleton) |
| .map(x -> x.canonical(DiscreteDomain.integers())) |
| .forEach(rangeSet::add); |
| List<ClosedOpenRange> ranges = rangeSet.asRanges().stream() |
| .map(ClosedOpenRange::of) |
| .collect(Collectors.toList()); |
| kryo.writeObject(output, ranges); |
| kryo.writeClassAndObject(output, object.codec()); |
| kryo.writeObject(output, object.parent()); |
| } |
| |
| @Override |
| public DiscreteResourceSet read(Kryo kryo, Input input, Class<DiscreteResourceSet> type) { |
| @SuppressWarnings("unchecked") |
| List<ClosedOpenRange> ranges = kryo.readObject(input, ArrayList.class); |
| DiscreteResourceCodec codec = (DiscreteResourceCodec) kryo.readClassAndObject(input); |
| DiscreteResourceId parent = kryo.readObject(input, DiscreteResourceId.class); |
| |
| if (ranges.isEmpty()) { |
| return DiscreteResourceSet.empty(); |
| } |
| |
| Set<DiscreteResource> resources = ranges.stream() |
| .flatMapToInt(x -> IntStream.range(x.lowerBound(), x.upperBound())) |
| .mapToObj(x -> codec.decode(parent, x)) |
| .collect(Collectors.toSet()); |
| |
| return DiscreteResourceSet.of(resources, codec); |
| } |
| } |