程序包 com.alibaba.nacos.core.storage.kv

类 FileKvStorage

java.lang.Object

com.alibaba.nacos.core.storage.kv.FileKvStorage

所有已实现的接口:

KvStorage

public class FileKvStorage
extends java.lang.Object
implements KvStorage

Kv storage based on file system. // TODO 写文件的方式需要优化

作者:

liaochuntao

嵌套类概要

从接口继承的嵌套类/接口 com.alibaba.nacos.core.storage.kv.KvStorage

KvStorage.KvType

字段概要

字段

修饰符和类型	字段	说明
private java.lang.String	baseDir
private java.util.concurrent.locks.ReentrantReadWriteLock	lock	Ensure that a consistent view exists when implementing file copies.
private java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock	readLock
private java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock	writeLock

构造器概要

构造器

构造器	说明
FileKvStorage(java.lang.String baseDir)

方法概要

修饰符和类型	方法	说明
java.util.List<byte[]>	allKeys()	Get all keys.
void	batchDelete(java.util.List<byte[]> keys)	batch delete with keys.
java.util.Map<byte[],byte[]>	batchGet(java.util.List<byte[]> keys)	batch get by List byte[].
void	batchPut(java.util.List<byte[]> keys, java.util.List<byte[]> values)	batch write.
void	delete(byte[] key)	delete with key.
void	doSnapshot(java.lang.String backupPath)	do snapshot.
byte[]	get(byte[] key)	get data by key.
void	put(byte[] key, byte[] value)	write data.
void	shutdown()	shutdown.
void	snapshotLoad(java.lang.String path)	load snapshot.

从类继承的方法 java.lang.Object

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

字段详细资料

baseDir

private final java.lang.String baseDir

lock

private final java.util.concurrent.locks.ReentrantReadWriteLock lock

Ensure that a consistent view exists when implementing file copies.

readLock

private final java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock readLock

writeLock

private final java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock writeLock

构造器详细资料

FileKvStorage

public FileKvStorage(java.lang.String baseDir)
              throws java.io.IOException

抛出:

java.io.IOException

方法详细资料

get

public byte[] get(byte[] key)
           throws KvStorageException

从接口复制的说明: KvStorage

get data by key.

指定者:

get 在接口中 KvStorage

参数:

key - byte[]

返回:

byte[]

抛出:

KvStorageException - KVStorageException

batchGet

public java.util.Map<byte[],byte[]> batchGet(java.util.List<byte[]> keys)
                                            throws KvStorageException

从接口复制的说明: KvStorage

batch get by List byte[].

指定者:

batchGet 在接口中 KvStorage

参数:

keys - List byte[]

返回:

Map byte[], byte[]

抛出:

KvStorageException - KvStorageException

put

public void put(byte[] key,
                byte[] value)
         throws KvStorageException

从接口复制的说明: KvStorage

write data.

指定者:

put 在接口中 KvStorage

参数:

key - byte[]

value - byte[]

抛出:

KvStorageException - KvStorageException

batchPut

public void batchPut(java.util.List<byte[]> keys,
                     java.util.List<byte[]> values)
              throws KvStorageException

从接口复制的说明: KvStorage

batch write.

指定者:

batchPut 在接口中 KvStorage

参数:

keys - List byte[]

values - List byte[]

抛出:

KvStorageException - KvStorageException

delete

public void delete(byte[] key)
            throws KvStorageException

从接口复制的说明: KvStorage

delete with key.

指定者:

delete 在接口中 KvStorage

参数:

key - byte[]

抛出:

KvStorageException - KvStorageException

batchDelete

public void batchDelete(java.util.List<byte[]> keys)
                 throws KvStorageException

从接口复制的说明: KvStorage

batch delete with keys.

指定者:

batchDelete 在接口中 KvStorage

参数:

keys - List byte[]

抛出:

KvStorageException - KvStorageException

doSnapshot

public void doSnapshot(java.lang.String backupPath)
                throws KvStorageException

从接口复制的说明: KvStorage

do snapshot.

指定者:

doSnapshot 在接口中 KvStorage

参数:

backupPath - snapshot file save path

抛出:

KvStorageException - KVStorageException

snapshotLoad

public void snapshotLoad(java.lang.String path)
                  throws KvStorageException

从接口复制的说明: KvStorage

load snapshot.

指定者:

snapshotLoad 在接口中 KvStorage

参数:

path - The path to the snapshot file

抛出:

KvStorageException - KVStorageException

allKeys

public java.util.List<byte[]> allKeys()
                               throws KvStorageException

从接口复制的说明: KvStorage

Get all keys.

指定者:

allKeys 在接口中 KvStorage

返回:

all keys

抛出:

KvStorageException - KVStorageException

shutdown

public void shutdown()

从接口复制的说明: KvStorage

shutdown.

指定者:

shutdown 在接口中 KvStorage