com.google.common.collect.ImmutableEnumMap Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of aem-sdk-api Show documentation
The Adobe Experience Manager SDK
There is a newer version: 2024.11.18751.20241128T090041Z-241100
/*
 * Copyright (C) 2012 The Guava Authors
 *
 * 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 com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import com.google.common.annotations.GwtCompatible;
import java.io.Serializable;
import java.util.EnumMap;
import java.util.Iterator;
import javax.annotation.Nullable;

/**
 *  Implementation of {@link ImmutableMap} backed by a non-empty {@link
 *  java.util.EnumMap}.
 *
 *  @author Louis Wasserman
 *
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
@GwtCompatible(serializable = true, emulated = true)
// we're overriding default serialization
@SuppressWarnings("serial")
@Deprecated(since = "2022-12-01")
final class ImmutableEnumMap, V> extends ImmutableMap {

    static , V> ImmutableMap asImmutable(EnumMap map) {
        switch(map.size()) {
            case 0:
                return ImmutableMap.of();
            case 1:
                {
                    Entry entry = Iterables.getOnlyElement(map.entrySet());
                    return ImmutableMap.of(entry.getKey(), entry.getValue());
                }
            default:
                return new ImmutableEnumMap(map);
        }
    }

    private transient final EnumMap delegate;

    private ImmutableEnumMap(EnumMap delegate) {
        this.delegate = delegate;
        checkArgument(!delegate.isEmpty());
    }

    @Override
    ImmutableSet createKeySet() {
        return new ImmutableSet() {

            @Override
            public boolean contains(Object object) {
                return delegate.containsKey(object);
            }

            @Override
            public int size() {
                return ImmutableEnumMap.this.size();
            }

            @Override
            public UnmodifiableIterator iterator() {
                return Iterators.unmodifiableIterator(delegate.keySet().iterator());
            }

            @Override
            boolean isPartialView() {
                return true;
            }
        };
    }

    @Override
    public int size() {
        return delegate.size();
    }

    @Override
    public boolean containsKey(@Nullable Object key) {
        return delegate.containsKey(key);
    }

    @Override
    public V get(Object key) {
        return delegate.get(key);
    }

    @Override
    ImmutableSet> createEntrySet() {
        return new ImmutableMapEntrySet() {

            @Override
            ImmutableMap map() {
                return ImmutableEnumMap.this;
            }

            @Override
            public UnmodifiableIterator> iterator() {
                return new UnmodifiableIterator>() {

                    private final Iterator> backingIterator = delegate.entrySet().iterator();

                    @Override
                    public boolean hasNext() {
                        return backingIterator.hasNext();
                    }

                    @Override
                    public Entry next() {
                        Entry entry = backingIterator.next();
                        return Maps.immutableEntry(entry.getKey(), entry.getValue());
                    }
                };
            }
        };
    }

    @Override
    boolean isPartialView() {
        return false;
    }

    // All callers of the constructor are restricted to >.
    @Override
    Object writeReplace() {
        return new EnumSerializedForm(delegate);
    }

    /*
   * This class is used to serialize ImmutableEnumSet instances.
   
@deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023*/
    @Deprecated(since = "2022-12-01")
    private static class EnumSerializedForm, V> implements Serializable {

        final EnumMap delegate;

        EnumSerializedForm(EnumMap delegate) {
            this.delegate = delegate;
        }

        Object readResolve() {
            return new ImmutableEnumMap(delegate);
        }

        private static final long serialVersionUID = 0;
    }
}