1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
#--
# Copyright (c) 2008, 2009 Jeremy Hinegardner
# All rights reserved. See LICENSE and/or COPYING for details.
#++
require 'stringio'
module Hitimes
class Stats
# A list of the available stats
STATS = %w[ count max mean min rate stddev sum sumsq ]
#
# call-seq:
# stat.to_hash -> Hash
# stat.to_hash( %w[ count max mean ]) -> Hash
#
# return a hash of the stats. By default this returns a hash of all stats
# but passing in an array of items will limit the stats returned to only
# those in the Array.
#
# If passed in an empty array or nil to to_hash then STATS is assumed to be
# the list of stats to return in the hash.
#
def to_hash( *args )
h = {}
args = [ args ].flatten
args = STATS if args.empty?
args.each do |meth|
h[meth] = self.send( meth )
end
return h
end
#
# call-seq:
# stat.to_json -> String
# stat.to_json( *args ) -> String
#
# return a json string of the stats. By default this returns a json string
# of all the stats. If an array of items is passed in, those that match the
# known stats will be all that is included in the json output.
#
def to_json( *args )
h = to_hash( *args )
a = []
s = StringIO.new
s.print "{ "
h.each_pair do |k,v|
a << "\"#{k}\": #{v}"
end
s.print a.join(", ")
s.print "}"
return s.string
end
end
end
|
