*/

package org.gradle.cache.internal;

import org.gradle.cache.PersistentCache;

/**
 * A visitor to a cache instance.  See {@link CacheFactory#visitCaches(CacheVisitor)}.
 */
public interface CacheVisitor {
    void visit(PersistentCache cache);

    /**
     * Visit the caches created by this factory.
     */
    void visitCaches(CacheVisitor visitor);

import org.gradle.cache.IndexedCacheParameters;
import org.gradle.cache.LockOptions;
import org.gradle.cache.PersistentCache;
import org.gradle.cache.internal.CacheFactory;
import org.gradle.cache.internal.CacheVisitor;
import org.gradle.internal.Cast;
import org.gradle.internal.Pair;
import org.gradle.internal.serialize.Serializer;
import org.gradle.util.internal.GFileUtils;

import javax.annotation.Nullable;

        factory.open(tmpDir.testDirectory.file('baz'), "baz", [prop: 'value'], mode(Shared), null, null)

        and:
        factory.visitCaches(new CacheVisitor() {
            @Override
            void visit(PersistentCache cache) {
                visited << cache.displayName.split(' ')[0]
            }
        })

        then:

            return doOpen(cacheDir, displayName, properties, lockOptions, initializer, cacheCleanupStrategy);
        } finally {
            lock.unlock();
        }
    }

    @Override
    public void visitCaches(CacheVisitor visitor) {
        dirCaches.values().stream().map(dirCacheReference -> dirCacheReference.cache).forEach(visitor::visit);
    }

    @Override
    public void close() {
        lock.lock();
        try {