LoggerProvider (Jericho HTML Parser 3.1)
Keywords: net.htmlparser.jericho.LoggerProvider interface

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## net.htmlparser.jericho
Interface LoggerProvider

    public interface LoggerProvider

Defines the interface for a factory class to provide `Logger` instances for each `Source` object.

It is not usually necessary for users to create implementations of this interface, as several predefined instances are defined which provide the most commonly required `Logger` implementations.

By default, a `LoggerProvider` is chosen automatically according to the algorithm described in the static `Config.LoggerProvider` property. This automatic choice can be overridden by setting the `Config.LoggerProvider` property manually with an instance of this interface, but this is also usually not necessary.

Field Summary
`static LoggerProvider` | `DISABLED` A `LoggerProvider` implementation that disables all log messages.
`static LoggerProvider` | `JAVA` A `LoggerProvider` implementation that wraps the standard `java.util.logging` system included in the Java SDK version 1.4 and above.
`static LoggerProvider` | `JCL` A `LoggerProvider` implementation that wraps the Jakarta Commons Logging (JCL) framework.
`static LoggerProvider` | `LOG4J` A `LoggerProvider` implementation that wraps the Apache Log4J framework.
`static LoggerProvider` | `SLF4J` A `LoggerProvider` implementation that wraps the SLF4J framework.
`static LoggerProvider` | `STDERR` A `LoggerProvider` implementation that sends all log messages to the standard error output stream (`System.err`).

Method Summary
`Logger` | `getLogger(java.lang.String name)` Creates a new `Logger` instance with the specified name.

Field Detail

### DISABLED

    static final LoggerProvider DISABLED

  A `LoggerProvider` implementation that disables all log messages.

### STDERR

    static final LoggerProvider STDERR

  A `LoggerProvider` implementation that sends all log messages to the standard error output stream (`System.err`).

  The implementation uses the following code to create each logger:
  `new` `WriterLogger``(new OutputStreamWriter(System.err),name)`

### JAVA

    static final LoggerProvider JAVA

  A `LoggerProvider` implementation that wraps the standard `java.util.logging` system included in the Java SDK version 1.4 and above.

  This is the default used if no other logging framework is detected. See the description of the static `Config.LoggerProvider` property for more details.

  The following mapping of logging levels is used:

  `Logger` level | `java.util.logging.Level`
  --- | ---
  `ERROR` | `SEVERE`
  `WARN` | `WARNING`
  `INFO` | `INFO`
  `DEBUG` | `FINE`

### JCL

    static final LoggerProvider JCL

  A `LoggerProvider` implementation that wraps the Jakarta Commons Logging (JCL) framework.

  See the description of the static `Config.LoggerProvider` property for details on when this implementation is used as the default.

  The following mapping of logging levels is used:

  `Logger` level | `org.apache.commons.logging` level
  --- | ---
  `ERROR` | `error`
  `WARN` | `warn`
  `INFO` | `info`
  `DEBUG` | `debug`

### LOG4J

    static final LoggerProvider LOG4J

  A `LoggerProvider` implementation that wraps the Apache Log4J framework.

  See the description of the static `Config.LoggerProvider` property for details on when this implementation is used as the default.

  The following mapping of logging levels is used:

  `Logger` level | `org.apache.log4j.Level`
  --- | ---
  `ERROR` | `ERROR`
  `WARN` | `WARN`
  `INFO` | `INFO`
  `DEBUG` | `DEBUG`

### SLF4J

    static final LoggerProvider SLF4J

  A `LoggerProvider` implementation that wraps the SLF4J framework.

  See the description of the static `Config.LoggerProvider` property for details on when this implementation is used as the default.

  The following mapping of logging levels is used:

  `Logger` level | `org.slf4j.Logger` level
  --- | ---
  `ERROR` | `error`
  `WARN` | `warn`
  `INFO` | `info`
  `DEBUG` | `debug`

Method Detail

### getLogger

    Logger getLogger(java.lang.String name)

  Creates a new `Logger` instance with the specified name.

  The `name` argument is used by the underlying logging implementation, and is normally a dot-separated name based on the package name or class name of the subsystem.

  The name used for all automatically created `Logger` instances is "`net.htmlparser.jericho`".

  Parameters:
    `name` - the name of the logger, the use of which is determined by the underlying logging implementation, may be `null`.
  Returns:
    a new `Logger` instance with the specified name.

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