io.usethesource.criterion.impl.immutable.guava.ImmutableGuavaSet.java Source code

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Here is the source code for io.usethesource.criterion.impl.immutable.guava.ImmutableGuavaSet.java

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/**
 * Copyright (c) Michael Steindorfer <Centrum Wiskunde & Informatica> and Contributors.
 * All rights reserved.
 *
 * This file is licensed under the BSD 2-Clause License, which accompanies this project
 * and is available under https://opensource.org/licenses/BSD-2-Clause.
 */
package io.usethesource.criterion.impl.immutable.guava;

import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import com.google.common.collect.ImmutableSet;
import io.usethesource.criterion.api.JmhSet;
import io.usethesource.criterion.api.JmhValue;

public final class ImmutableGuavaSet implements JmhSet {

    private final ImmutableSet<JmhValue> content;

    protected ImmutableGuavaSet(ImmutableSet<JmhValue> content) {
        this.content = content;
    }

    @Override
    public boolean isEmpty() {
        return content.isEmpty();
    }

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

    @Override
    public JmhSet insert(JmhValue key) {
        final HashSet<JmhValue> tmpContent = new HashSet<>(content);
        tmpContent.add(key);

        final ImmutableSet<JmhValue> newContent = ImmutableSet.copyOf(tmpContent);

        return new ImmutableGuavaSet(newContent);

        //    final ImmutableSet<JmhValue> newContent =
        //        ImmutableSet.<JmhValue>builder().addAll(content).add(key).build();
        //
        //    return new ImmutableGuavaSet(newContent);
    }

    @Override
    public JmhSet delete(JmhValue key) {
        final HashSet<JmhValue> tmpContent = new HashSet<>(content);
        tmpContent.remove(key);

        final ImmutableSet<JmhValue> newContent = ImmutableSet.copyOf(tmpContent);

        return new ImmutableGuavaSet(newContent);
    }

    @Override
    public boolean contains(JmhValue key) {
        return content.contains(key);
    }

    @Override
    public int hashCode() {
        return content.hashCode();
    }

    @Override
    public boolean equals(Object other) {
        if (other == this) {
            return true;
        }
        if (other == null) {
            return false;
        }

        if (other instanceof ImmutableGuavaSet) {
            ImmutableGuavaSet that = (ImmutableGuavaSet) other;

            if (this.size() != that.size()) {
                return false;
            }

            return content.equals(that.content);
        }

        return false;
    }

    @Override
    public Object unwrap() {
        return content;
    }

    @Override
    public Iterator<JmhValue> iterator() {
        return content.iterator();
    }

    @Override
    public Set<JmhValue> asJavaSet() {
        return new HashSet<>(content);
    }

}