Class LogWatcher<E>

  • Direct Known Subclasses:
    JulWatcher, Log4j2Watcher

    public abstract class LogWatcher<E>
    extends Object
    A Class to monitor Logging events and hold N events in memory

    This is abstract so we can support both JUL and Log4j2 (and other logging platforms)

    • Field Detail

      • last

        protected long last
    • Constructor Detail

      • LogWatcher

        public LogWatcher()
    • Method Detail

      • getName

        public abstract String getName()
        The implementation name
      • getAllLevels

        public abstract List<String> getAllLevels()
        The valid level names for this framework
      • setLogLevel

        public abstract void setLogLevel​(String category,
                                         String level)
        Sets the log level within this framework
      • getAllLoggers

        public abstract Collection<LoggerInfo> getAllLoggers()
        all registered loggers
      • setThreshold

        public abstract void setThreshold​(String level)
      • getThreshold

        public abstract String getThreshold()
      • add

        public void add​(E event,
                        long timstamp)
      • getLastEvent

        public long getLastEvent()
      • getHistorySize

        public int getHistorySize()
      • getHistory

        public org.apache.solr.common.SolrDocumentList getHistory​(long since,
                                                                  AtomicBoolean found)
      • getTimestamp

        public abstract long getTimestamp​(E event)
      • toSolrDocument

        public abstract org.apache.solr.common.SolrDocument toSolrDocument​(E event)
      • registerListener

        public abstract void registerListener​(ListenerConfig cfg)
      • reset

        public void reset()
      • newRegisteredLogWatcher

        public static LogWatcher<?> newRegisteredLogWatcher​(LogWatcherConfig config,
                                                            SolrResourceLoader loader)
        Create and register a LogWatcher.

        JUL and Log4j watchers are supported out-of-the-box. You can register your own LogWatcher implementation via the plugins architecture

        config - a LogWatcherConfig object, containing the configuration for this LogWatcher.
        loader - a SolrResourceLoader, to be used to load plugin LogWatcher implementations. Can be null if
        a LogWatcher configured for the container's logging framework