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Java Standard Edition (SE)

ConsoleHandler


compact1, compact2, compact3
java.util.logging

Class ConsoleHandler



  • public class ConsoleHandler
    extends StreamHandler
    This Handler publishes log records to System.err. By default the SimpleFormatter is used to generate brief summaries.

    Configuration: By default each ConsoleHandler is initialized using the following LogManager configuration properties where <handler-name> refers to the fully-qualified class name of the handler. If properties are not defined (or have invalid values) then the specified default values are used.

    • <handler-name>.level specifies the default level for the Handler (defaults to Level.INFO).
    • <handler-name>.filter specifies the name of a Filter class to use (defaults to no Filter).
    • <handler-name>.formatter specifies the name of a Formatter class to use (defaults to java.util.logging.SimpleFormatter).
    • <handler-name>.encoding the name of the character set encoding to use (defaults to the default platform encoding).

    For example, the properties for ConsoleHandler would be:

    • java.util.logging.ConsoleHandler.level=INFO
    • java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter

    For a custom handler, e.g. com.foo.MyHandler, the properties would be:

    • com.foo.MyHandler.level=INFO
    • com.foo.MyHandler.formatter=java.util.logging.SimpleFormatter

    Since:
    1.4
    • Constructor Detail

      • ConsoleHandler

        public ConsoleHandler()
        Create a ConsoleHandler for System.err.

        The ConsoleHandler is configured based on LogManager properties (or their default values).

    • Method Detail

      • publish

        public void publish(LogRecord record)
        Publish a LogRecord.

        The logging request was made initially to a Logger object, which initialized the LogRecord and forwarded it here.

        Overrides:
        publish in class StreamHandler
        Parameters:
        record - description of the log event. A null record is silently ignored and is not published
      • close

        public void close()
        Override StreamHandler.close to do a flush but not to close the output stream. That is, we do not close System.err.
        Overrides:
        close in class StreamHandler


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