Package org.miaixz.bus.http.cache

Class Cache

java.lang.Object

org.miaixz.bus.http.cache.Cache

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class Cache
extends Object
implements Closeable, Flushable

缓存HTTP和HTTPS对文件系统的响应，以便可以重用它们，从而节省时间和带宽.

Since:

Java 17+

Author:

Kimi Liu

Field Summary

Fields

Modifier and Type	Field	Description
final InternalCache	internalCache

Constructor Summary

Constructors

Constructor	Description
Cache(File directory, long maxSize)	在directory中创建最多maxSize字节的缓存
Cache(File directory, long maxSize, DiskLruCache.DiskFile diskFile)

Method Summary

Modifier and Type	Method	Description
void	close()
void	delete()	关闭缓存并删除其所有存储值。
File	directory()
void	evictAll()	删除缓存中存储的所有值。
void	flush()
int	hitCount()
void	initialize()	始化缓存。
boolean	isClosed()
static String	key(UnoUrl url)
long	maxSize()
int	networkCount()
int	requestCount()
long	size()
Iterator<String>	urls()	在此缓存中的url上返回一个迭代器,该迭代器支持Iterator.remove()。
int	writeAbortCount()
int	writeSuccessCount()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

internalCache

public final InternalCache internalCache

Constructor Details

Cache

public Cache(File directory,
 long maxSize)

在directory中创建最多maxSize字节的缓存

Parameters:

directory - 目录

maxSize - 缓存的最大大小(以字节为单位)

Cache

public Cache(File directory,
 long maxSize,
 DiskLruCache.DiskFile diskFile)

Method Details

key

public static String key(UnoUrl url)

initialize

public void initialize()
                throws IOException

始化缓存。这将包括从存储器中读取日志文件并构建必要的内存缓存信息 注意，如果应用程序选择不调用此方法来初始化缓存。默认情况下，将在第一次使用缓存时执行延迟初始化

Throws:

IOException - 初始化异常

delete

public void delete()
            throws IOException

关闭缓存并删除其所有存储值。这将删除缓存目录中的所有文件，包括没有由缓存创建的文件

Throws:

IOException - 删除异常

evictAll

public void evictAll()
              throws IOException

删除缓存中存储的所有值。缓存中的写操作将正常完成，但不会存储相应的响应

Throws:

IOException - 清除异常

urls

public Iterator<String> urls()
                      throws IOException

在此缓存中的url上返回一个迭代器,该迭代器支持Iterator.remove()。 从迭代器中删除URL将从缓存中删除相应的响应。使用此来清除选定的响应

Returns:

迭代器

Throws:

IOException - 异常

writeAbortCount

public int writeAbortCount()

writeSuccessCount

public int writeSuccessCount()

size

public long size()
          throws IOException

Throws:

IOException

maxSize

public long maxSize()

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

directory

public File directory()

isClosed

public boolean isClosed()

networkCount

public int networkCount()

hitCount

public int hitCount()

requestCount

public int requestCount()