@InterfaceAudience.Private public class BlockCacheUtil extends java.lang.Object
Modifier and Type | Class and Description |
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static class |
BlockCacheUtil.CachedBlocksByFile
Use one of these to keep a running account of cached blocks by file.
|
Constructor and Description |
---|
BlockCacheUtil() |
Modifier and Type | Method and Description |
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static BlockCacheUtil.CachedBlocksByFile |
getLoadedCachedBlocksByFile(Configuration conf,
BlockCache bc)
Get a
BlockCacheUtil.CachedBlocksByFile instance and load it up by iterating content in
BlockCache . |
static java.lang.String |
toJSON(BlockCache bc) |
static java.lang.String |
toJSON(BlockCacheUtil.CachedBlocksByFile cbsbf) |
static java.lang.String |
toJSON(java.lang.String filename,
java.util.NavigableSet<CachedBlock> blocks) |
static java.lang.String |
toString(CachedBlock cb,
long now) |
static java.lang.String |
toStringMinusFileName(CachedBlock cb,
long now) |
public static java.lang.String toString(CachedBlock cb, long now)
cb
- public static java.lang.String toJSON(java.lang.String filename, java.util.NavigableSet<CachedBlock> blocks) throws JsonGenerationException, JsonMappingException, java.io.IOException
filename
- blocks
- filename
and counts of blocks
JsonGenerationException
JsonMappingException
java.io.IOException
public static java.lang.String toJSON(BlockCacheUtil.CachedBlocksByFile cbsbf) throws JsonGenerationException, JsonMappingException, java.io.IOException
cbsbf
- cbsf
aggregatedJsonGenerationException
JsonMappingException
java.io.IOException
public static java.lang.String toJSON(BlockCache bc) throws JsonGenerationException, JsonMappingException, java.io.IOException
bc
- bc
content.JsonGenerationException
JsonMappingException
java.io.IOException
public static java.lang.String toStringMinusFileName(CachedBlock cb, long now)
cb
- bc
as a String minus the filename.public static BlockCacheUtil.CachedBlocksByFile getLoadedCachedBlocksByFile(Configuration conf, BlockCache bc)
BlockCacheUtil.CachedBlocksByFile
instance and load it up by iterating content in
BlockCache
.conf
- Used to read configurationsbc
- Block Cache to iterate.