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module RequestLogAnalyzer::Tracker
# Determines the datetime of the first request and the last request
# Also determines the amount of days inbetween these.
#
# Accepts the following options:
# * <tt>:line_type</tt> The line type that contains the duration field (determined by the category proc).
# * <tt>:if</tt> Proc that has to return !nil for a request to be passed to the tracker.
# * <tt>:field</tt> The timestamp field that is looked at. Defaults to :timestamp.
# * <tt>:title</tt> Title do be displayed above the report.
#
# Expects the following items in the update request hash
# * <tt>:timestamp</tt> in YYYYMMDDHHMMSS format.
#
# Example output:
# First request: 2008-07-13 06:25:06
# Last request: 2008-07-20 06:18:06
# Total time analyzed: 7 days
class Timespan < Base
attr_reader :first, :last, :request_time_graph
def prepare
options[:field] ||= :timestamp
end
def update(request)
timestamp = request[options[:field]]
@first = timestamp if @first.nil? || timestamp < @first
@last = timestamp if @last.nil? || timestamp > @last
end
def first_timestamp
DateTime.parse(@first.to_s, '%Y%m%d%H%M%S') rescue nil
end
def last_timestamp
DateTime.parse(@last.to_s, '%Y%m%d%H%M%S') rescue nil
end
def timespan
last_timestamp - first_timestamp
end
def report(output)
output.title(options[:title]) if options[:title]
if @last && @first
output.with_style(:cell_separator => false) do
output.table({:width => 20}, {}) do |rows|
rows << ['First request:', first_timestamp.strftime('%Y-%m-%d %H:%M:%I')]
rows << ['Last request:', last_timestamp.strftime('%Y-%m-%d %H:%M:%I')]
rows << ['Total time analyzed:', "#{timespan.ceil} days"]
end
end
end
end
end
end
Version data entries
11 entries across 11 versions & 2 rubygems