public class RollingFileNamingStrategy extends AbstractFileNamingStrategy
FileNamingStrategy
which simply uses a rolling counter to give unique file name.Constructor and Description |
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RollingFileNamingStrategy() |
Modifier and Type | Method and Description |
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RollingFileNamingStrategy |
createInstance()
Creates a new instance of
FileNamingStrategy . |
org.apache.hadoop.fs.Path |
init(org.apache.hadoop.fs.Path path)
Initialises a starting state of a strategy.
|
void |
next()
This method should be called to prepare next filename in case
strategy doesn't know how to do it automatically.
|
void |
reset()
Resets the strategy to its original state.
|
org.apache.hadoop.fs.Path |
resolve(org.apache.hadoop.fs.Path path)
Resolve a current file path denoted by this strategy.
|
void |
setPrefix(java.lang.String prefix)
Sets the prefix preceding rolling number part.
|
getCodecInfo, getOrder, isEnabled, setCodecInfo, setEnabled, setOrder
public org.apache.hadoop.fs.Path resolve(org.apache.hadoop.fs.Path path)
FileNamingStrategy
path
- the pathpublic void next()
FileNamingStrategy
public void reset()
FileNamingStrategy
reset
in interface FileNamingStrategy
reset
in class AbstractFileNamingStrategy
public org.apache.hadoop.fs.Path init(org.apache.hadoop.fs.Path path)
FileNamingStrategy
Path
and
remove its own handled part if possible. Returned Path
is then passed into next strategy for it to able to
do its own initialisation logic.
Path
passed to this method may be null indicating
that no further processing should be done or simply we don't
have information about the initialised path.
init
in interface FileNamingStrategy
init
in class AbstractFileNamingStrategy
path
- the pathpublic void setPrefix(java.lang.String prefix)
prefix
- the new prefixpublic RollingFileNamingStrategy createInstance()
FileNamingStrategyFactory
FileNamingStrategy
.createInstance
in interface FileNamingStrategyFactory<FileNamingStrategy>
createInstance
in class AbstractFileNamingStrategy