| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.iceberg; |
| |
| import java.io.ObjectStreamException; |
| import java.io.Serializable; |
| import java.nio.ByteBuffer; |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.iceberg.relocated.com.google.common.collect.Maps; |
| import org.apache.iceberg.util.ByteBuffers; |
| |
| class SerializableByteBufferMap implements Map<Integer, ByteBuffer>, Serializable { |
| private final Map<Integer, ByteBuffer> wrapped; |
| |
| static Map<Integer, ByteBuffer> wrap(Map<Integer, ByteBuffer> map) { |
| if (map == null) { |
| return null; |
| } |
| |
| if (map instanceof SerializableByteBufferMap) { |
| return map; |
| } |
| |
| return new SerializableByteBufferMap(map); |
| } |
| |
| SerializableByteBufferMap() { |
| this.wrapped = Maps.newLinkedHashMap(); |
| } |
| |
| private SerializableByteBufferMap(Map<Integer, ByteBuffer> wrapped) { |
| this.wrapped = wrapped; |
| } |
| |
| private static class MapSerializationProxy implements Serializable { |
| private int[] keys = null; |
| private byte[][] values = null; |
| |
| /** |
| * Constructor for Java serialization. |
| */ |
| MapSerializationProxy() { |
| } |
| |
| MapSerializationProxy(int[] keys, byte[][] values) { |
| this.keys = keys; |
| this.values = values; |
| } |
| |
| Object readResolve() throws ObjectStreamException { |
| Map<Integer, ByteBuffer> map = Maps.newLinkedHashMap(); |
| |
| for (int i = 0; i < keys.length; i += 1) { |
| map.put(keys[i], ByteBuffer.wrap(values[i])); |
| } |
| |
| return SerializableByteBufferMap.wrap(map); |
| } |
| } |
| |
| Object writeReplace() throws ObjectStreamException { |
| Collection<Map.Entry<Integer, ByteBuffer>> entries = wrapped.entrySet(); |
| int[] keys = new int[entries.size()]; |
| byte[][] values = new byte[keys.length][]; |
| |
| int keyIndex = 0; |
| for (Map.Entry<Integer, ByteBuffer> entry : entries) { |
| keys[keyIndex] = entry.getKey(); |
| values[keyIndex] = ByteBuffers.toByteArray(entry.getValue()); |
| keyIndex += 1; |
| } |
| |
| return new MapSerializationProxy(keys, values); |
| } |
| |
| @Override |
| public int size() { |
| return wrapped.size(); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return wrapped.isEmpty(); |
| } |
| |
| @Override |
| public boolean containsKey(Object key) { |
| return wrapped.containsKey(key); |
| } |
| |
| @Override |
| public boolean containsValue(Object value) { |
| return wrapped.containsValue(value); |
| } |
| |
| @Override |
| public ByteBuffer get(Object key) { |
| return wrapped.get(key); |
| } |
| |
| @Override |
| public ByteBuffer put(Integer key, ByteBuffer value) { |
| return wrapped.put(key, value); |
| } |
| |
| @Override |
| public ByteBuffer remove(Object key) { |
| return wrapped.remove(key); |
| } |
| |
| @Override |
| public void putAll(Map<? extends Integer, ? extends ByteBuffer> m) { |
| wrapped.putAll(m); |
| } |
| |
| @Override |
| public void clear() { |
| wrapped.clear(); |
| } |
| |
| @Override |
| public Set<Integer> keySet() { |
| return wrapped.keySet(); |
| } |
| |
| @Override |
| public Collection<ByteBuffer> values() { |
| return wrapped.values(); |
| } |
| |
| @Override |
| public Set<Entry<Integer, ByteBuffer>> entrySet() { |
| return wrapped.entrySet(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return wrapped.equals(o); |
| } |
| |
| @Override |
| public int hashCode() { |
| return wrapped.hashCode(); |
| } |
| } |