Class: NewRelic::TransactionSample::Segment
- Inherits:
-
Object
- Object
- NewRelic::TransactionSample::Segment
show all
- Includes:
- Coerce
- Defined in:
- lib/new_relic/transaction_sample/segment.rb
Instance Attribute Summary collapse
Instance Method Summary
collapse
Methods included from Coerce
#float, #int, #log_failure, #string
Constructor Details
#initialize(timestamp, metric_name, segment_id) ⇒ Segment
Returns a new instance of Segment.
14
15
16
17
18
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 14
def initialize(timestamp, metric_name, segment_id)
@entry_timestamp = timestamp
@metric_name = metric_name || '<unknown>'
@segment_id = segment_id || object_id
end
|
Instance Attribute Details
#entry_timestamp ⇒ Object
Returns the value of attribute entry_timestamp.
6
7
8
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 6
def entry_timestamp
@entry_timestamp
end
|
#exit_timestamp ⇒ Object
The exit timestamp will be relative except for the outermost sample which will have a timestamp.
9
10
11
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 9
def exit_timestamp
@exit_timestamp
end
|
#metric_name ⇒ Object
Returns the value of attribute metric_name.
11
12
13
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 11
def metric_name
@metric_name
end
|
#parent_segment ⇒ Object
Returns the value of attribute parent_segment.
10
11
12
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 10
def parent_segment
@parent_segment
end
|
#segment_id ⇒ Object
Returns the value of attribute segment_id.
12
13
14
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 12
def segment_id
@segment_id
end
|
Instance Method Details
#[](key) ⇒ Object
137
138
139
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 137
def [](key)
params[key]
end
|
#[]=(key, value) ⇒ Object
131
132
133
134
135
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 131
def []=(key, value)
params[key] = value
end
|
#add_called_segment(s) ⇒ Object
26
27
28
29
30
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 26
def add_called_segment(s)
@called_segments ||= []
@called_segments << s
s.parent_segment = self
end
|
#called_segments ⇒ Object
82
83
84
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 82
def called_segments
@called_segments || []
end
|
#called_segments=(segments) ⇒ Object
194
195
196
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 194
def called_segments=(segments)
@called_segments = segments
end
|
#count_segments ⇒ Object
102
103
104
105
106
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 102
def count_segments
count = 1
called_segments.each { | seg | count += seg.count_segments }
count
end
|
#duration ⇒ Object
return the total duration of this segment
87
88
89
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 87
def duration
(@exit_timestamp - @entry_timestamp).to_f
end
|
#each_segment(&block) ⇒ Object
call the provided block for this segment and each of the called segments
147
148
149
150
151
152
153
154
155
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 147
def each_segment(&block)
block.call self
if @called_segments
@called_segments.each do |segment|
segment.each_segment(&block)
end
end
end
|
#each_segment_with_nest_tracking(&block) ⇒ Object
call the provided block for this segment and each of the called segments while keeping track of nested segments
159
160
161
162
163
164
165
166
167
168
169
170
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 159
def each_segment_with_nest_tracking(&block)
summary = block.call self
summary.current_nest_count += 1 if summary
if @called_segments
@called_segments.each do |segment|
segment.each_segment_with_nest_tracking(&block)
end
end
summary.current_nest_count -= 1 if summary
end
|
#end_trace(timestamp) ⇒ Object
sets the final timestamp on a segment to indicate the exit point of the segment
22
23
24
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 22
def end_trace(timestamp)
@exit_timestamp = timestamp
end
|
#exclusive_duration ⇒ Object
return the duration of this segment without including the time in the called segments
93
94
95
96
97
98
99
100
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 93
def exclusive_duration
d = duration
called_segments.each do |segment|
d -= segment.duration
end
d
end
|
#explain_sql ⇒ Object
181
182
183
184
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 181
def explain_sql
NewRelic::Agent::Database.explain_sql(params[:sql],
params[:connection_config])
end
|
#find_segment(id) ⇒ Object
172
173
174
175
176
177
178
179
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 172
def find_segment(id)
return self if @segment_id == id
called_segments.each do |segment|
found = segment.find_segment(id)
return found if found
end
nil
end
|
#params ⇒ Object
141
142
143
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 141
def params
@params ||= {}
end
|
#params=(p) ⇒ Object
190
191
192
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 190
def params=(p)
@params = p
end
|
#path_string ⇒ Object
50
51
52
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 50
def path_string
"#{metric_name}[#{called_segments.collect {|segment| segment.path_string }.join('')}]"
end
|
#to_array ⇒ Object
38
39
40
41
42
43
44
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 38
def to_array
[ NewRelic::Helper.time_to_millis(@entry_timestamp),
NewRelic::Helper.time_to_millis(@exit_timestamp),
string(@metric_name),
(@params || {}) ] +
[ (@called_segments ? @called_segments.map{|s| s.to_array} : []) ]
end
|
#to_debug_str(depth) ⇒ Object
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 61
def to_debug_str(depth)
tab = " " * depth
s = tab.clone
s << ">> #{'%3i ms' % (@entry_timestamp*1000)} [#{self.class.name.split("::").last}] #{metric_name} \n"
unless params.empty?
params.each do |k,v|
s << "#{tab} -#{'%-16s' % k}: #{v.to_s[0..80]}\n"
end
end
called_segments.each do |cs|
s << cs.to_debug_str(depth + 1)
end
s << tab + "<< "
s << case @exit_timestamp
when nil then ' n/a'
when Numeric then '%3i ms' % (@exit_timestamp*1000)
else @exit_timestamp.to_s
end
s << " #{metric_name}\n"
end
|
#to_json ⇒ Object
46
47
48
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 46
def to_json
JSON.dump(self.to_array)
end
|
#to_s ⇒ Object
32
33
34
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 32
def to_s
to_debug_str(0)
end
|
#to_s_compact ⇒ Object
53
54
55
56
57
58
59
60
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 53
def to_s_compact
str = ""
str << metric_name
if called_segments.any?
str << "{#{called_segments.map { | cs | cs.to_s_compact }.join(",")}}"
end
str
end
|
#truncate(max) ⇒ Object
Walk through the tree and truncate the segments in a depth-first manner
110
111
112
113
114
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 110
def truncate(max)
return 1 unless @called_segments
total, self.called_segments = truncate_each_child(max - 1)
total+1
end
|
#truncate_each_child(max) ⇒ Object
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
# File 'lib/new_relic/transaction_sample/segment.rb', line 116
def truncate_each_child(max)
total = 0
accumulator = []
called_segments.each { | s |
if total == max
true
else
total += s.truncate(max - total)
accumulator << s
end
}
total
[total, accumulator]
end
|