Class: RR::ScanReportPrinters::ScanSummaryReporter

Inherits:
Object
  • Object
show all
Defined in:
lib/rubyrep/scan_report_printers/scan_summary_reporter.rb

Overview

A ScanReportPrinter producing a summary (number of differences) only.

Direct Known Subclasses

ScanDetailReporter

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_, arg) ⇒ ScanSummaryReporter

A scan run is to be started using this scan result printer. arg is the command line argument as yielded by OptionParser#on.



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 28

def initialize(_, arg)
  self.only_totals = (arg != 'detailed')
end

Instance Attribute Details

#left_table ⇒ Object

Name of the left table of the current scan



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 17

def left_table
  @left_table
end

#only_totals ⇒ Object

Set to true if only the total number of differences should be reported



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 14

def only_totals
  @only_totals
end

#right_table ⇒ Object

Name of the right table of the current scan



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 20

def right_table
  @right_table
end

#scan_result ⇒ Object

Hold the result of the current scan. A hash with a running count of

+:conflict+, +:left+ (only) or +:right+ (only) records.



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 24

def scan_result
  @scan_result
end

Instance Method Details

#report_difference(type, row) ⇒ Object

Each difference is handed to the printer as described in the format as described e. g. in DirectTableScan#run



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 65

def report_difference(type, row)
  scan_result[type] += 1
end

#scan(left_table, right_table) ⇒ Object

A scan of the given ‘left’ table and corresponding ‘right’ table is executed. Needs to yield so that the actual scan can be executed.



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 34

def scan(left_table, right_table)
  self.left_table = left_table
  self.right_table = right_table
  self.scan_result = {:conflict => 0, :left => 0, :right => 0}

  header = left_table.clone
  header << " / " << right_table if left_table != right_table
  $stdout.write "#{header.rjust(36)} "

  yield # Give control back so that the actual table scan can be done.

  if only_totals
    $stdout.write \
      "#{rjust_value(scan_result[:conflict] + scan_result[:left] + scan_result[:right])}"
  else
    $stdout.write \
      "#{rjust_value(scan_result[:conflict])} " +
      "#{rjust_value(scan_result[:left])} " +
      "#{rjust_value(scan_result[:right])}"
  end
  $stdout.puts
end

#scanning_finished ⇒ Object

Optional method. If a scan report printer has it, it is called after the last table scan is executed. (A good place to print a final summary.)



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# File 'lib/rubyrep/scan_report_printers/scan_summary_reporter.rb', line 72

def scanning_finished
end