001/*
002 * Copyright (C) 2009 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.collect;
018
019import com.google.gwt.user.client.rpc.SerializationException;
020import com.google.gwt.user.client.rpc.SerializationStreamReader;
021import com.google.gwt.user.client.rpc.SerializationStreamWriter;
022import com.google.gwt.user.client.rpc.core.java.util.Collection_CustomFieldSerializerBase;
023import java.util.ArrayList;
024import java.util.Comparator;
025import java.util.List;
026
027/**
028 * This class implements the GWT serialization of {@link RegularImmutableSortedSet}.
029 *
030 * @author Chris Povirk
031 */
032public class RegularImmutableSortedSet_CustomFieldSerializer {
033  public static void deserialize(
034      SerializationStreamReader reader, RegularImmutableSortedSet<?> instance) {}
035
036  public static RegularImmutableSortedSet<Object> instantiate(SerializationStreamReader reader)
037      throws SerializationException {
038    /*
039     * Nothing we can do, but we're already assuming the serialized form is
040     * correctly typed, anyway.
041     */
042    @SuppressWarnings("unchecked")
043    Comparator<Object> comparator = (Comparator<Object>) reader.readObject();
044
045    List<Object> elements = new ArrayList<>();
046    Collection_CustomFieldSerializerBase.deserialize(reader, elements);
047    /*
048     * For this custom field serializer to be invoked, the set must have been
049     * RegularImmutableSortedSet before it's serialized. Since
050     * RegularImmutableSortedSet always have one or more elements,
051     * ImmutableSortedSet.copyOf always return a RegularImmutableSortedSet back.
052     */
053    return (RegularImmutableSortedSet<Object>) ImmutableSortedSet.copyOf(comparator, elements);
054  }
055
056  public static void serialize(
057      SerializationStreamWriter writer, RegularImmutableSortedSet<?> instance)
058      throws SerializationException {
059    writer.writeObject(instance.comparator());
060
061    Collection_CustomFieldSerializerBase.serialize(writer, instance);
062  }
063}