Merge branch '3187-pipeline-instance-page' into 3605-improved-dashboard
[arvados.git] / apps / workbench / app / controllers / pipeline_instances_controller.rb
1 class PipelineInstancesController < ApplicationController
2   skip_before_filter :find_object_by_uuid, only: :compare
3   before_filter :find_objects_by_uuid, only: :compare
4   include PipelineInstancesHelper
5   include PipelineComponentsHelper
6
7   def copy
8     template = PipelineTemplate.find?(@object.pipeline_template_uuid)
9
10     source = @object
11     @object = PipelineInstance.new
12     @object.pipeline_template_uuid = source.pipeline_template_uuid
13
14     if params['components'] == 'use_latest' and template
15       @object.components = template.components.deep_dup
16       @object.components.each do |cname, component|
17         # Go through the script parameters of each component
18         # that are marked as user input and copy them over.
19         component[:script_parameters].each do |pname, val|
20           if val.is_a? Hash and val[:dataclass]
21             # this is user-inputtable, so check the value from the source pipeline
22             srcvalue = source.components[cname][:script_parameters][pname]
23             if not srcvalue.nil?
24               component[:script_parameters][pname] = srcvalue
25             end
26           end
27         end
28       end
29     else
30       @object.components = source.components.deep_dup
31     end
32
33     if params['script'] == 'use_same'
34       # Go through each component and copy the script_version from each job.
35       @object.components.each do |cname, component|
36         if source.components[cname][:job]
37           component[:script_version] = source.components[cname][:job][:script_version]
38         end
39       end
40     end
41
42     @object.components.each do |cname, component|
43       component.delete :job
44     end
45     @object.state = 'New'
46     super
47   end
48
49   def update
50     @updates ||= params[@object.class.to_s.underscore.singularize.to_sym]
51     if (components = @updates[:components])
52       components.each do |cname, component|
53         if component[:script_parameters]
54           component[:script_parameters].each do |param, value_info|
55             if value_info.is_a? Hash
56               if resource_class_for_uuid(value_info[:value]) == Link
57                 # Use the link target, not the link itself, as script
58                 # parameter; but keep the link info around as well.
59                 link = Link.find value_info[:value]
60                 value_info[:value] = link.head_uuid
61                 value_info[:link_uuid] = link.uuid
62                 value_info[:link_name] = link.name
63               else
64                 # Delete stale link_uuid and link_name data.
65                 value_info[:link_uuid] = nil
66                 value_info[:link_name] = nil
67               end
68             end
69           end
70         end
71       end
72     end
73     super
74   end
75
76   def graph(pipelines)
77     return nil, nil if params['tab_pane'] != "Graph"
78
79     count = {}
80     provenance = {}
81     pips = {}
82     n = 1
83
84     pipelines.each do |p|
85       collections = []
86
87       p.components.each do |k, v|
88         j = v[:job] || next
89
90         uuid = j[:uuid].intern
91         provenance[uuid] = j
92         pips[uuid] = 0 unless pips[uuid] != nil
93         pips[uuid] |= n
94
95         collections << j[:output]
96         ProvenanceHelper::find_collections(j[:script_parameters]).each do |k|
97           collections << k
98         end
99
100         uuid = j[:script_version].intern
101         provenance[uuid] = {:uuid => uuid}
102         pips[uuid] = 0 unless pips[uuid] != nil
103         pips[uuid] |= n
104       end
105
106       Collection.where(uuid: collections.compact).each do |c|
107         uuid = c.uuid.intern
108         provenance[uuid] = c
109         pips[uuid] = 0 unless pips[uuid] != nil
110         pips[uuid] |= n
111       end
112
113       n = n << 1
114     end
115
116     return provenance, pips
117   end
118
119   def show
120     @pipelines = [@object]
121
122     if params[:compare]
123       PipelineInstance.where(uuid: params[:compare]).each do |p|
124         @pipelines << p
125       end
126     end
127
128     provenance, pips = graph(@pipelines)
129     if provenance
130       @prov_svg = ProvenanceHelper::create_provenance_graph provenance, "provenance_svg", {
131         :request => request,
132         :all_script_parameters => true,
133         :combine_jobs => :script_and_version,
134         :script_version_nodes => true,
135         :pips => pips }
136     end
137
138     super
139   end
140
141   def compare
142     @breadcrumb_page_name = 'compare'
143
144     @rows = []          # each is {name: S, components: [...]}
145
146     if params['tab_pane'] == "Compare" or params['tab_pane'].nil?
147       # Build a table: x=pipeline y=component
148       @objects.each_with_index do |pi, pi_index|
149         pipeline_jobs(pi).each do |component|
150           # Find a cell with the same name as this component but no
151           # entry for this pipeline
152           target_row = nil
153           @rows.each_with_index do |row, row_index|
154             if row[:name] == component[:name] and !row[:components][pi_index]
155               target_row = row
156             end
157           end
158           if !target_row
159             target_row = {name: component[:name], components: []}
160             @rows << target_row
161           end
162           target_row[:components][pi_index] = component
163         end
164       end
165
166       @rows.each do |row|
167         # Build a "normal" pseudo-component for this row by picking the
168         # most common value for each attribute. If all values are
169         # equally common, there is no "normal".
170         normal = {}              # attr => most common value
171         highscore = {}           # attr => how common "normal" is
172         score = {}               # attr => { value => how common }
173         row[:components].each do |pj|
174           next if pj.nil?
175           pj.each do |k,v|
176             vstr = for_comparison v
177             score[k] ||= {}
178             score[k][vstr] = (score[k][vstr] || 0) + 1
179             highscore[k] ||= 0
180             if score[k][vstr] == highscore[k]
181               # tie for first place = no "normal"
182               normal.delete k
183             elsif score[k][vstr] == highscore[k] + 1
184               # more pipelines have v than anything else
185               highscore[k] = score[k][vstr]
186               normal[k] = vstr
187             end
188           end
189         end
190
191         # Add a hash in component[:is_normal]: { attr => is_the_value_normal? }
192         row[:components].each do |pj|
193           next if pj.nil?
194           pj[:is_normal] = {}
195           pj.each do |k,v|
196             pj[:is_normal][k] = (normal.has_key?(k) && normal[k] == for_comparison(v))
197           end
198         end
199       end
200     end
201
202     if params['tab_pane'] == "Graph"
203       provenance, pips = graph(@objects)
204
205       @pipelines = @objects
206
207       if provenance
208         @prov_svg = ProvenanceHelper::create_provenance_graph provenance, "provenance_svg", {
209           :request => request,
210           :all_script_parameters => true,
211           :combine_jobs => :script_and_version,
212           :script_version_nodes => true,
213           :pips => pips }
214       end
215     end
216
217     @object = @objects.first
218
219     show
220   end
221
222   def show_pane_list
223     panes = %w(Components Log Graph Advanced)
224     if @object and @object.state.in? ['New', 'Ready']
225       panes = %w(Inputs) + panes - %w(Log)
226     end
227     if not @object.components.values.any? { |x| x[:job] rescue false }
228       panes -= ['Graph']
229     end
230     panes
231   end
232
233   def compare_pane_list
234     %w(Compare Graph)
235   end
236
237   def index
238     @limit = 20
239     super
240   end
241
242   protected
243   def for_comparison v
244     if v.is_a? Hash or v.is_a? Array
245       v.to_json
246     else
247       v.to_s
248     end
249   end
250
251   def find_objects_by_uuid
252     @objects = model_class.where(uuid: params[:uuids])
253   end
254
255 end