Class: ArchivesSpaceIndexer

Inherits:
Sinatra::Base
  • Object
show all
Defined in:
indexer/app/main.rb

Class Method Summary collapse

Class Method Details

.main ⇒ Object 



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# File 'indexer/app/main.rb', line 23

def self.main
  periodic_indexer = PeriodicIndexer.get_indexer
  pui_indexer = PUIIndexer.get_indexer

  threads = []

  Log.info("Starting periodic indexer")
  threads << Thread.new do
    begin
      periodic_indexer.run
    rescue
      Log.error("Unexpected failure in periodic indexer: #{$!}")
    end
  end

  if AppConfig[:pui_indexer_enabled]
    Log.info "Starting PUI indexer"
    threads << Thread.new do
      # Stagger them to encourage them to run at different times
      sleep AppConfig[:solr_indexing_frequency_seconds]

      begin
        pui_indexer.run
      rescue
        Log.error "Unexpected failure in PUI indexer: #{$!}"
      end
    end
  end

  sleep 5

  backend_urls = Atomic.new([])

  threads << Thread.new do
    realtime_indexers = {}

    while true
      begin
        # Once a minute, check to see whether any new backend instances have
        # turned up
        backend_urls.update {|old_urls| AppConfig[:backend_instance_urls]}

        # Start up threads for any backends that don't have one yet
        backend_urls.value.each do |url|
          if !realtime_indexers[url] || !realtime_indexers[url].alive?

            Log.info "Starting realtime indexer for: #{url}"

            realtime_indexers[url] = Thread.new do
              begin
                indexer = RealtimeIndexer.new(url, proc { backend_urls.value.include?(url) })
                indexer.run
              rescue
                Log.error "Realtime indexing error (#{backend_url}): #{$!}"
                sleep 5
              end
            end
          end
        end

        sleep 60
      rescue
        sleep 5
      end
    end
  end


  threads.each {|t| t.join} if java.lang.System.get_property("aspace.devserver")
end