Class: Longleaf::ReindexCommand

Inherits:
Object
  • Object
show all
Includes:
EventStatusTracking, Logging
Defined in:
lib/longleaf/commands/reindex_command.rb

Overview

Command for reindexing metadata

Instance Method Summary collapse

Methods included from EventStatusTracking

#record_failure, #record_success, #return_status, #track_failure, #track_status, #track_success

Methods included from Logging

#initialize_logger, initialize_logger, #logger, logger

Constructor Details

#initialize(app_manager) ⇒ ReindexCommand

Returns a new instance of ReindexCommand



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# File 'lib/longleaf/commands/reindex_command.rb', line 11

def initialize(app_manager)
  @app_manager = app_manager
  @index_manager = @app_manager.index_manager
end

Instance Method Details

#all_storage_locations_selector ⇒ Object (private) 



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# File 'lib/longleaf/commands/reindex_command.rb', line 86

def all_storage_locations_selector
  storage_loc_names = @app_manager.location_manager.locations.keys

  RegisteredFileSelector.new(storage_locations: storage_loc_names, app_config: @app_manager)
end

#execute(only_if_stale: false) ⇒ Integer

Execute the reindex command

Parameters:

  • only_if_stale (boolean) —

    if true, then the reindex command will perform no operation unless the index is stale.

Returns:

  • (Integer) —

    status code



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# File 'lib/longleaf/commands/reindex_command.rb', line 19

def execute(only_if_stale: false)
  if !@index_manager.using_index?
    record_failure("Cannot perform reindex, no index is configured")
    return return_status
  end

  if only_if_stale && !@index_manager.index_stale?
    record_success("Index is not stale, performing no action")
    return return_status
  end

  start_time = Time.now
  logger.info('Performing full reindex')
  results = nil
  begin
    start_time = Time.now.utc

    selector = all_storage_locations_selector

    # Repopulate the index
    results = index_all(selector)

    # List and then clear all files which were not reindexed
    @index_manager.each_registered_path(selector, older_than: start_time) do |file_path|
      logger.warn("Clearing '#{file_path}' from index, file is no longer present.")
    end
    @index_manager.clear_index(start_time)

    # Update the state of the index to indicate it has been reindexed
    @index_manager.update_index_state
  rescue => err
    record_failure("Encountered error while reindexing", error: err)
  end

  if results['fail'] > 0
    record_success("Completed reindexing, #{results['success']} successful, #{results['fail']} failed.")
  else
    record_success("Completed reindexing, #{results['success']} successful.")
  end

  logger.info("Completed full reindex in #{Time.now - start_time}s")
  return_status
end

#index_all(selector) ⇒ Object (private) 



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# File 'lib/longleaf/commands/reindex_command.rb', line 64

def index_all(selector)
  count = 0
  failures = 0

  selector.each do |file_path|
    begin
      storage_loc = @app_manager.location_manager.get_location_by_path(file_path)
      file_rec = FileRecord.new(file_path, storage_loc)

      @app_manager.md_manager.load(file_rec)
      @index_manager.index(file_rec)

      record_success("Reindexed #{file_rec.path}")
      count += 1
    rescue LongleafError => err
      record_failure("Failed to reindex #{file_rec.path}: #{err.message}")
      failures += 1
    end
  end
  {'success' => count, 'fail' => failures}
end