Class: Webmachine::Trace::TraceResource
- Inherits:
-
Resource
- Object
- Resource
- Webmachine::Trace::TraceResource
show all
- Defined in:
- lib/webmachine/trace/trace_resource.rb
Overview
Implements the user-interface of the visual debugger. This includes serving the static files (the PNG flow diagram, CSS and JS for the UI) and the HTML for the individual traces.
Constant Summary
collapse
- MAP_EXTERNAL =
%w{static map.png}
- MAP_FILE =
File.expand_path("../static/http-headers-status-v3.png", __FILE__)
- SCRIPT_EXTERNAL =
%w{static wmtrace.js}
- SCRIPT_FILE =
File.expand_path("../#{SCRIPT_EXTERNAL.join '/'}", __FILE__)
- STYLE_EXTERNAL =
%w{static wmtrace.css}
- STYLE_FILE =
File.expand_path("../#{STYLE_EXTERNAL.join '/'}", __FILE__)
- TRACELIST_ERB =
File.expand_path("../static/tracelist.erb", __FILE__)
- TRACE_ERB =
File.expand_path("../static/trace.erb", __FILE__)
Instance Attribute Summary
Attributes inherited from Resource
#request, #response
Class Method Summary
collapse
Instance Method Summary
collapse
Methods inherited from Resource
new, run
#trace?
#weak_etag
#encode_deflate, #encode_gzip, #encode_identity
#allow_missing_post?, #allowed_methods, #base_uri, #charsets_provided, #content_types_accepted, #create_path, #delete_completed?, #delete_resource, #encodings_provided, #finish_request, #forbidden?, #generate_etag, #handle_exception, #is_authorized?, #is_conflict?, #known_content_type?, #known_methods, #language_chosen, #languages_provided, #malformed_request?, #moved_permanently?, #moved_temporarily?, #multiple_choices?, #options, #post_is_create?, #previously_existed?, #process_post, #service_available?, #uri_too_long?, #valid_content_headers?, #valid_entity_length?, #validate_content_checksum, #variances
Class Method Details
.trace ⇒ Object
The ERB template for a single trace
26
27
28
|
# File 'lib/webmachine/trace/trace_resource.rb', line 26
def self.trace
@@trace ||= ERB.new(File.read(TRACE_ERB))
end
|
.tracelist ⇒ Object
The ERB template for the trace list
21
22
23
|
# File 'lib/webmachine/trace/trace_resource.rb', line 21
def self.tracelist
@@tracelist ||= ERB.new(File.read(TRACELIST_ERB))
end
|
Instance Method Details
#content_types_provided ⇒ Object
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
# File 'lib/webmachine/trace/trace_resource.rb', line 30
def content_types_provided
case request.path_tokens
when []
[["text/html", :produce_list]]
when MAP_EXTERNAL
[["image/png", :produce_file]]
when SCRIPT_EXTERNAL
[["text/javascript", :produce_file]]
when STYLE_EXTERNAL
[["text/css", :produce_file]]
else
[["text/html", :produce_trace]]
end
end
|
#encode_decisions(decisions) ⇒ Object
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
# File 'lib/webmachine/trace/trace_resource.rb', line 102
def encode_decisions(decisions)
decisions.inject([]) do |list, event|
case event[:type]
when :decision
unless event[:decision].to_s =~ /[a-z]$/
list << {'d' => event[:decision], 'calls' => []}
end
when :attempt
list.last['calls'] << {
"call" => event[:name],
"source" => event[:source],
"input" => event[:args] && event[:args].inspect
}
when :result
list.last['calls'].last['output'] = event[:value].inspect
when :exception
list.last['calls'].last['exception'] = {
'class' => event[:class],
'backtrace' => event[:backtrace].join("\n"),
'message' => event[:message]
}
end
list
end
end
|
#encode_trace(data) ⇒ Object
92
93
94
95
96
97
98
99
100
|
# File 'lib/webmachine/trace/trace_resource.rb', line 92
def encode_trace(data)
data = data.dup
treq = data.shift.dup
tres = data.pop.dup
treq.delete :type
tres.delete :type
[ MultiJson.dump(treq), MultiJson.dump(tres), MultiJson.dump(encode_decisions(data)) ]
end
|
#expires ⇒ Object
68
69
70
|
# File 'lib/webmachine/trace/trace_resource.rb', line 68
def expires
(Time.now + 30 * 86400).utc if @file
end
|
#last_modified ⇒ Object
64
65
66
|
# File 'lib/webmachine/trace/trace_resource.rb', line 64
def last_modified
File.mtime(@file) if @file
end
|
#produce_file ⇒ Object
72
73
74
75
76
77
|
# File 'lib/webmachine/trace/trace_resource.rb', line 72
def produce_file
open(@file, "rb") {|io| io.read }
end
|
#produce_list ⇒ Object
79
80
81
82
83
|
# File 'lib/webmachine/trace/trace_resource.rb', line 79
def produce_list
base = request.uri.path.chomp("/")
traces = Trace.traces.map {|t| [ t, "#{base}/#{t}" ] }
self.class.tracelist.result(binding)
end
|
#produce_trace ⇒ Object
85
86
87
88
89
90
|
# File 'lib/webmachine/trace/trace_resource.rb', line 85
def produce_trace
data = Trace.fetch(@trace)
treq, tres, trace = encode_trace(data)
name = @trace
self.class.trace.result(binding)
end
|
#resource_exists? ⇒ Boolean