Package nxt.util

Class MemoryHandler

  • public class MemoryHandler
extends java.util.logging.Handler
    MemoryHandler maintains a ring buffer of log messages. The GetLog API is used to retrieve these log messages. The following logging.properties entries are used:
    • nxt.util.MemoryHandler.level (default ALL)
    • nxt.util.MemoryHandler.size (default 100, minimum 10)

    • Constructor Summary

      Constructors 
      Constructor Description
      MemoryHandler()
      Create a MemoryHandler and configure it based on LogManager properties

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Close the handler
      void flush()
      Flush the ring buffer
      java.util.List<java.lang.String> getMessages​(int msgCount)
      Return the log messages from the ring buffer
      void publish​(java.util.logging.LogRecord record)
      Store a LogRecord in the ring buffer

      • Methods inherited from class java.util.logging.Handler

        getEncoding, getErrorManager, getFilter, getFormatter, getLevel, isLoggable, reportError, setEncoding, setErrorManager, setFilter, setFormatter, setLevel

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • MemoryHandler

        public MemoryHandler()
        Create a MemoryHandler and configure it based on LogManager properties

    • Method Detail

      • publish

        public void publish​(java.util.logging.LogRecord record)
        Store a LogRecord in the ring buffer
        Specified by:
        publish in class java.util.logging.Handler
        Parameters:
        record - Description of the log event. A null record is silently ignored and is not published

      • getMessages

        public java.util.List<java.lang.String> getMessages​(int msgCount)
        Return the log messages from the ring buffer
        Parameters:
        msgCount - Number of messages to return
        Returns:
        List of log messages

      • flush

        public void flush()
        Flush the ring buffer
        Specified by:
        flush in class java.util.logging.Handler

      • close

        public void close()
        Close the handler
        Specified by:
        close in class java.util.logging.Handler