Slf4JInfoStream (Atlassian Confluence 8.8.0 API)

java.lang.Object
- org.apache.lucene.util.InfoStream
- - com.atlassian.confluence.internal.search.v2.lucene.Slf4JInfoStream

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean
```
public class Slf4JInfoStream
extends org.apache.lucene.util.InfoStream
implements org.springframework.beans.factory.InitializingBean, org.springframework.beans.factory.DisposableBean
```
Adapts Lucene's logging mechanism, InfoStream, to SLF4J.
In InfoStream, messages are categorised by "components". Generally a component is the class name or an acronym of it, e.g. the component of org.apache.lucene.index.IndexUpgrader is IndexUpgrader and the component of org.apache.lucene.index.DocumentsWriter is DW. Since there's no concept of log levels, all messages are logged under debug.
A Spring-managed instance will replace the default InfoStream within its lifecycle, thus it only makes sense to have a singleton registered.

Field Summary
- Fields inherited from class org.apache.lucene.util.InfoStream
  NO_OUTPUT

Constructor Summary

Constructors
Constructor Description

Slf4JInfoStream(Map<String,String> componentToLoggerMapping)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`afterPropertiesSet()`
`void`	`close()`
`void`	`destroy()`
`boolean`	`isEnabled(String component)`
`void`	`message(String component, String message)`

Methods inherited from class org.apache.lucene.util.InfoStream
clone, getDefault, setDefault

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Slf4JInfoStream
```
public Slf4JInfoStream(Map<String,String> componentToLoggerMapping)
```
    Parameters:
    
    componentToLoggerMapping - maps component names to logger names, defaults to logger if no mapping could be found
- Method Detail
  - message
```
public void message(String component,
                    String message)
```
    Specified by:
    
    message in class org.apache.lucene.util.InfoStream
  - isEnabled
```
public boolean isEnabled(String component)
```
    Specified by:
    
    isEnabled in class org.apache.lucene.util.InfoStream
  - close
```
public void close()
```
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
  - destroy
```
public void destroy()
             throws Exception
```
    Specified by:
    
    destroy in interface org.springframework.beans.factory.DisposableBean
    
    Throws:
    
    Exception
  - afterPropertiesSet
```
public void afterPropertiesSet()
                        throws Exception
```
    Specified by:
    
    afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
    
    Throws:
    
    Exception