org.gridgain.grid.cache.eviction.ggfs

Class GridCacheGgfsPerBlockLruEvictionPolicy

java.lang.Object

org.gridgain.grid.cache.eviction.ggfs.GridCacheGgfsPerBlockLruEvictionPolicy

All Implemented Interfaces:

GridCacheGgfsPerBlockLruEvictionPolicyMBean, org.gridgain.grid.cache.eviction.GridCacheEvictionPolicy<GridGgfsBlockKey,byte[]>

public class GridCacheGgfsPerBlockLruEvictionPolicy
extends Object
implements org.gridgain.grid.cache.eviction.GridCacheEvictionPolicy<GridGgfsBlockKey,byte[]>, GridCacheGgfsPerBlockLruEvictionPolicyMBean

GGFS eviction policy which evicts particular blocks.

Field Summary

Fields

Modifier and Type	Field and Description
static String	META_NODE Meta denoting node in the queue.

Constructor Summary

Constructors

Constructor and Description
GridCacheGgfsPerBlockLruEvictionPolicy() Default constructor.
GridCacheGgfsPerBlockLruEvictionPolicy(long maxSize, int maxBlocks) Constructor.
GridCacheGgfsPerBlockLruEvictionPolicy(long maxSize, int maxBlocks, Collection<String> excludePaths) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	exclude(org.gridgain.grid.ggfs.GridGgfsPath path) Check whether provided path must be excluded from evictions.
int	getCurrentBlocks() Gets current amount of blocks.
long	getCurrentSize() Gets current size of data in all blocks.
Collection<String>	getExcludePaths() Gets collection of regex for paths whose blocks must not be evicted.
int	getMaxBlocks() Gets maximum allowed amount of blocks.
long	getMaxSize() Gets maximum allowed size of all blocks in bytes.
void	onEntryAccessed(boolean rmv, org.gridgain.grid.cache.GridCacheEntry<GridGgfsBlockKey,byte[]> entry)
void	setExcludePaths(Collection<String> excludePaths) Sets collection of regex for paths whose blocks must not be evicted.
void	setMaxBlocks(int maxBlocks) Sets maximum allowed amount of blocks.
void	setMaxSize(long maxSize) Sets maximum allowed size of data in all blocks in bytes.

Methods inherited from class java.lang.Object

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

Field Detail

META_NODE

public static final String META_NODE

Meta denoting node in the queue.

See Also:

Constant Field Values

Constructor Detail

GridCacheGgfsPerBlockLruEvictionPolicy

public GridCacheGgfsPerBlockLruEvictionPolicy()

Default constructor.

GridCacheGgfsPerBlockLruEvictionPolicy

public GridCacheGgfsPerBlockLruEvictionPolicy(long maxSize,
                                      int maxBlocks)

Constructor.

Parameters:

maxSize - Maximum size. When reached, eviction begins.

maxBlocks - Maximum amount of blocks. When reached, eviction begins.

GridCacheGgfsPerBlockLruEvictionPolicy

public GridCacheGgfsPerBlockLruEvictionPolicy(long maxSize,
                                      int maxBlocks,
                                      @Nullable
                                      Collection<String> excludePaths)

Constructor.

Parameters:

maxSize - Maximum size. When reached, eviction begins.

maxBlocks - Maximum amount of blocks. When reached, eviction begins.

excludePaths - Collection of regex for path which must not be evicted.

Method Detail

onEntryAccessed

public void onEntryAccessed(boolean rmv,
                   org.gridgain.grid.cache.GridCacheEntry<GridGgfsBlockKey,byte[]> entry)

Specified by:

onEntryAccessed in interface org.gridgain.grid.cache.eviction.GridCacheEvictionPolicy<GridGgfsBlockKey,byte[]>

getMaxSize

public long getMaxSize()

Gets maximum allowed size of all blocks in bytes.

Specified by:

getMaxSize in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Returns:

Maximum allowed size of all blocks in bytes.

setMaxSize

public void setMaxSize(long maxSize)

Sets maximum allowed size of data in all blocks in bytes.

Specified by:

setMaxSize in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Parameters:

maxSize - Maximum allowed size of data in all blocks in bytes.

getMaxBlocks

public int getMaxBlocks()

Gets maximum allowed amount of blocks.

Specified by:

getMaxBlocks in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Returns:

Maximum allowed amount of blocks.

setMaxBlocks

public void setMaxBlocks(int maxBlocks)

Sets maximum allowed amount of blocks.

Specified by:

setMaxBlocks in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Parameters:

maxBlocks - Maximum allowed amount of blocks.

getExcludePaths

public Collection<String> getExcludePaths()

Gets collection of regex for paths whose blocks must not be evicted.

Specified by:

getExcludePaths in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Returns:

Collection of regex for paths whose blocks must not be evicted.

setExcludePaths

public void setExcludePaths(@Nullable
                   Collection<String> excludePaths)

Sets collection of regex for paths whose blocks must not be evicted.

Specified by:

setExcludePaths in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Parameters:

excludePaths - Collection of regex for paths whose blocks must not be evicted.

getCurrentSize

public long getCurrentSize()

Gets current size of data in all blocks.

Specified by:

getCurrentSize in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Returns:

Current size of data in all blocks.

getCurrentBlocks

public int getCurrentBlocks()

Gets current amount of blocks.

Specified by:

getCurrentBlocks in interface GridCacheGgfsPerBlockLruEvictionPolicyMBean

Returns:

Current amount of blocks.

exclude

public boolean exclude(org.gridgain.grid.ggfs.GridGgfsPath path)
                throws org.gridgain.grid.GridException

Check whether provided path must be excluded from evictions.

Parameters:

path - Path.

Returns:

True in case non block of related file must be excluded.

Throws:

org.gridgain.grid.GridException - In case of faulty patterns.