}
        return super.sink(file, mustCreate)
      }
    }

  /** The maximum number of bytes that this cache should use to store its data. */
  @get:Synchronized @set:Synchronized
  var maxSize: Long = maxSize
    set(value) {
      field = value
      if (initialized) {
        cleanupQueue.schedule(cleanupTask) // Trim the existing store if necessary.
      }
    }

  /*

	public fun flush ()V
	public final fun hitCount ()I
	public final fun initialize ()V
	public final fun isClosed ()Z
	public static final fun key (Lokhttp3/HttpUrl;)Ljava/lang/String;
	public final fun maxSize ()J
	public final fun networkCount ()I
	public final fun requestCount ()I
	public final fun size ()J
	public final fun urls ()Ljava/util/Iterator;
	public final fun writeAbortCount ()I

import okhttp3.internal.connection.RealCall
import okhttp3.internal.connection.RealConnection
import okio.FileSystem
import okio.Path

internal fun buildCache(
  file: Path,
  maxSize: Long,
  fileSystem: FileSystem,
): Cache {
  return Cache(fileSystem, file, maxSize)
}

internal var RealConnection.idleAtNsAccessor: Long
  get() = idleAtNs
  set(value) {
    idleAtNs = value
  }

=== ":material-language-kotlin: Kotlin"
    ```kotlin
      private val client: OkHttpClient = OkHttpClient.Builder()
          .cache(Cache(
              directory = cacheDirectory,
              maxSize = 10L * 1024L * 1024L // 10 MiB
          ))
          .build()

      fun run() {
        val request = Request.Builder()
            .url("http://publicobject.com/helloworld.txt")
            .build()

onfabrica.com

// Facebook, Inc.
// Submitted by Peter Ruibal <******@****.***>
apps.fbsbx.com

// FAITID : https://faitid.org/
// Submitted by Maxim Alzoba <******@****.***>
// https://www.flexireg.net/stat_info
ru.net
adygeya.ru
bashkiria.ru
bir.ru
cbg.ru
com.ru
dagestan.ru
grozny.ru
kalmykia.ru
kustanai.ru

  constructor(directory: File, maxSize: Long) : this(
    FileSystem.SYSTEM,
    directory.toOkioPath(),
    maxSize,
  )

  internal val cache =
    DiskLruCache(
      fileSystem = fileSystem,
      directory = directory,
      appVersion = VERSION,
      valueCount = ENTRY_COUNT,
      maxSize = maxSize,
      taskRunner = taskRunner,
    )

class CacheResponse(cacheDirectory: File) {
  private val client: OkHttpClient =
    OkHttpClient.Builder()
      .cache(
        Cache(
          directory = cacheDirectory,
          // 1 MiB.
          maxSize = 10L * 1024L * 1024L,
        ),
      )
      .build()

  fun run() {
    val request =
      Request.Builder()
        .url("http://publicobject.com/helloworld.txt")
        .build()

      .build()
  private val callback = RecordingCallback()
  private val cache =
    Cache(
      fileSystem = LoggingFilesystem(fileSystem),
      directory = "/cache".toPath(),
      maxSize = Int.MAX_VALUE.toLong(),
    )

  @BeforeEach
  fun setUp(
    server: MockWebServer,
    @MockWebServerInstance("server2") server2: MockWebServer,
  ) {
    this.server = server

        getOnly = false,
      )
    runBatch(dnsProviders, names)
    val dnsCache =
      Cache(
        directory = File("./target/TestDohMain.cache.${System.currentTimeMillis()}"),
        maxSize = 10L * 1024 * 1024,
      )
    println("Bad targets\n***********\n")
    val url = "https://dns.cloudflare.com/.not-so-well-known/run-dmc-query".toHttpUrl()
    val badProviders =
      listOf(

```kotlin
  private val client: OkHttpClient = OkHttpClient.Builder()
      .cache(Cache(
          directory = File(application.cacheDir, "http_cache"),
          // $0.05 worth of phone storage in 2020
          maxSize = 50L * 1024L * 1024L // 50 MiB
      ))
      .build()
```

## EventListener events 

Cache Events are exposed via the EventListener API.  Typical scenarios are below.

### Cache Hit