Package org.apache.lucene.util
Class JavaLoggingInfoStream
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- org.apache.lucene.util.InfoStream
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- org.apache.lucene.util.JavaLoggingInfoStream
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- All Implemented Interfaces:
Closeable,AutoCloseable
public final class JavaLoggingInfoStream extends InfoStream
InfoStream implementation that logs every message using Java Utils Logging (JUL) with the supplied log level.- NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
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Field Summary
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Fields inherited from class org.apache.lucene.util.InfoStream
NO_OUTPUT
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Constructor Summary
Constructors Constructor Description JavaLoggingInfoStream(String namePrefix, Level level)Gets an implementation that logs using the given log level and adds a prefix to the component name.JavaLoggingInfoStream(Function<String,String> componentToLoggerName, Level level)Gets an implementation that logs using the given log level with a logger name derived from the component name.JavaLoggingInfoStream(Level level)Gets an implementation using the given log level with a default prefix"org.apache.lucene.".
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidclose()booleanisEnabled(String component)returns true if messages are enabled and should be posted toInfoStream.message(java.lang.String, java.lang.String).voidmessage(String component, String message)prints a message-
Methods inherited from class org.apache.lucene.util.InfoStream
getDefault, setDefault
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Constructor Detail
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JavaLoggingInfoStream
public JavaLoggingInfoStream(Level level)
Gets an implementation using the given log level with a default prefix"org.apache.lucene.".- Parameters:
level- Requested log level to be used while logging
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JavaLoggingInfoStream
public JavaLoggingInfoStream(String namePrefix, Level level)
Gets an implementation that logs using the given log level and adds a prefix to the component name.- Parameters:
namePrefix- Prefix to be applied to all component names. It must be empty or include a final dotlevel- Requested log level to be used while logging
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JavaLoggingInfoStream
public JavaLoggingInfoStream(Function<String,String> componentToLoggerName, Level level)
Gets an implementation that logs using the given log level with a logger name derived from the component name.- Parameters:
componentToLoggerName- A function to convert a component name to a valid JUL logger namelevel- Requested log level to be used while logging
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Method Detail
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message
public void message(String component, String message)
Description copied from class:InfoStreamprints a message- Specified by:
messagein classInfoStream
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isEnabled
public boolean isEnabled(String component)
Description copied from class:InfoStreamreturns true if messages are enabled and should be posted toInfoStream.message(java.lang.String, java.lang.String).- Specified by:
isEnabledin classInfoStream
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close
public void close()
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