Package com.lightstreamer.log

Interface Logger

  • public interface Logger
    Interface to be implemented to consume log from the library.
    Instances of implemented classes are obtained by the library through the LoggerProvider instance set on com.lightstreamer.client.LightstreamerClient#setLoggerProvider.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void debug​(java.lang.String line)
      Receives log messages at Debug level.
      void debug​(java.lang.String line, java.lang.Throwable exception)
      Receives log messages at Debug level and a related exception.
      void error​(java.lang.String line)
      Receives log messages at Error level.
      void error​(java.lang.String line, java.lang.Throwable exception)
      Receives log messages at Error level and a related exception.
      void fatal​(java.lang.String line)
      Receives log messages at Fatal level.
      void fatal​(java.lang.String line, java.lang.Throwable exception)
      Receives log messages at Fatal level and a related exception.
      void info​(java.lang.String line)
      Receives log messages at Info level.
      void info​(java.lang.String line, java.lang.Throwable exception)
      Receives log messages at Info level and a related exception.
      boolean isDebugEnabled()
      Checks if this logger is enabled for the Debug level.
      boolean isErrorEnabled()
      Checks if this logger is enabled for the Error level.
      boolean isFatalEnabled()
      Checks if this logger is enabled for the Fatal level.
      boolean isInfoEnabled()
      Checks if this logger is enabled for the Info level.
      boolean isWarnEnabled()
      Checks if this logger is enabled for the Warn level.
      void warn​(java.lang.String line)
      Receives log messages at Warn level.
      void warn​(java.lang.String line, java.lang.Throwable exception)
      Receives log messages at Warn level and a related exception.

    • Method Detail

      • error

        void error​(@Nonnull
           java.lang.String line)
        Receives log messages at Error level.
        Parameters:
        line - The message to be logged.

      • error

        void error​(@Nonnull
           java.lang.String line,
           @Nonnull
           java.lang.Throwable exception)
        Receives log messages at Error level and a related exception.
        Parameters:
        line - The message to be logged.
        exception - An Exception instance related to the current log message.

      • warn

        void warn​(@Nonnull
          java.lang.String line)
        Receives log messages at Warn level.
        Parameters:
        line - The message to be logged.

      • warn

        void warn​(@Nonnull
          java.lang.String line,
          @Nonnull
          java.lang.Throwable exception)
        Receives log messages at Warn level and a related exception.
        Parameters:
        line - The message to be logged.
        exception - An Exception instance related to the current log message.

      • info

        void info​(@Nonnull
          java.lang.String line)
        Receives log messages at Info level.
        Parameters:
        line - The message to be logged.

      • info

        void info​(@Nonnull
          java.lang.String line,
          @Nonnull
          java.lang.Throwable exception)
        Receives log messages at Info level and a related exception.
        Parameters:
        line - The message to be logged.
        exception - An Exception instance related to the current log message.

      • debug

        void debug​(@Nonnull
           java.lang.String line)
        Receives log messages at Debug level.
        Parameters:
        line - The message to be logged.

      • debug

        void debug​(@Nonnull
           java.lang.String line,
           @Nonnull
           java.lang.Throwable exception)
        Receives log messages at Debug level and a related exception.
        Parameters:
        line - The message to be logged.
        exception - An Exception instance related to the current log message.

      • fatal

        void fatal​(@Nonnull
           java.lang.String line)
        Receives log messages at Fatal level.
        Parameters:
        line - The message to be logged.

      • fatal

        void fatal​(@Nonnull
           java.lang.String line,
           @Nonnull
           java.lang.Throwable exception)
        Receives log messages at Fatal level and a related exception.
        Parameters:
        line - The message to be logged.
        exception - An Exception instance related to the current log message.

      • isDebugEnabled

        boolean isDebugEnabled()
        Checks if this logger is enabled for the Debug level.
        The property should be true if this logger is enabled for Debug events, false otherwise.
        This property is intended to lessen the computational cost of disabled log Debug statements. Note that even if the property is false, Debug log lines may be received anyway by the Debug methods.

      • isInfoEnabled

        boolean isInfoEnabled()
        Checks if this logger is enabled for the Info level.
        The property should be true if this logger is enabled for Info events, false otherwise.
        This property is intended to lessen the computational cost of disabled log Info statements. Note that even if the property is false, Info log lines may be received anyway by the Info methods.

      • isWarnEnabled

        boolean isWarnEnabled()
        Checks if this logger is enabled for the Warn level.
        The property should be true if this logger is enabled for Warn events, false otherwise.
        This property is intended to lessen the computational cost of disabled log Warn statements. Note that even if the property is false, Warn log lines may be received anyway by the Warn methods.

      • isErrorEnabled

        boolean isErrorEnabled()
        Checks if this logger is enabled for the Error level.
        The property should be true if this logger is enabled for Error events, false otherwise.
        This property is intended to lessen the computational cost of disabled log Error statements. Note that even if the property is false, Error log lines may be received anyway by the Error methods.

      • isFatalEnabled

        boolean isFatalEnabled()
        Checks if this logger is enabled for the Fatal level.
        The property should be true if this logger is enabled for Fatal events, false otherwise.
        This property is intended to lessen the computational cost of disabled log Fatal statements. Note that even if the property is false, Fatal log lines may be received anyway by the Fatal methods.