X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/35336cd73e444534cb2eda20e3730464cc4e6553..3ac9fd0c91fe202a59e7c3611156bb1a9b8118fe:/services/api/app/models/pipeline_instance.rb

diff --git a/services/api/app/models/pipeline_instance.rb b/services/api/app/models/pipeline_instance.rb
index ad96b771a4..ca4b69c62a 100644
--- a/services/api/app/models/pipeline_instance.rb
+++ b/services/api/app/models/pipeline_instance.rb
@@ -4,11 +4,14 @@ class PipelineInstance < ArvadosModel
   include CommonApiTemplate
   serialize :components, Hash
   serialize :properties, Hash
+  serialize :components_summary, Hash
   belongs_to :pipeline_template, :foreign_key => :pipeline_template_uuid, :primary_key => :uuid
-  attr_accessor :pipeline_template
 
   before_validation :bootstrap_components
   before_validation :update_success
+  before_validation :verify_status
+  before_create :set_state_before_save
+  before_save :set_state_before_save
 
   api_accessible :user, extend: :common do |t|
     t.add :pipeline_template_uuid
@@ -19,12 +22,45 @@ class PipelineInstance < ArvadosModel
     t.add :active
     t.add :dependencies
     t.add :properties
+    t.add :state
+    t.add :components_summary
   end
 
+  # Supported states for a pipeline instance
+  New = 'New'
+  Ready = 'Ready'
+  RunningOnServer = 'RunningOnServer'
+  RunningOnClient = 'RunningOnClient'
+  Paused = 'Paused'
+  Failed = 'Failed'
+  Complete = 'Complete'
+
   def dependencies
     dependency_search(self.components).keys
   end
 
+  # if all components have input, the pipeline is Ready
+  def components_look_ready?
+    if !self.components || self.components.empty?
+      return false
+    end
+
+    all_components_have_input = true
+    self.components.each do |name, component|
+      component['script_parameters'].andand.each do |parametername, parameter|
+        parameter = { 'value' => parameter } unless parameter.is_a? Hash
+        if parameter['value'].nil? and parameter['required']
+          if parameter['output_of']
+            next
+          end
+          all_components_have_input = false
+          break
+        end
+      end
+    end
+    return all_components_have_input
+  end
+
   def progress_table
     begin
       # v0 pipeline format
@@ -68,7 +104,7 @@ class PipelineInstance < ArvadosModel
   protected
   def bootstrap_components
     if pipeline_template and (!components or components.empty?)
-      self.components = pipeline_template.components
+      self.components = pipeline_template.components.deep_dup
     end
   end
 
@@ -101,4 +137,68 @@ class PipelineInstance < ArvadosModel
       {}
     end
   end
+
+  def verify_status
+    if active_changed?
+      if self.active
+        self.state = RunningOnServer
+      else
+        if self.components_look_ready?
+          self.state = Ready
+        else
+          self.state = New
+        end
+      end
+    elsif success_changed?
+      if self.success
+        self.active = false
+        self.state = Complete
+      else
+        self.active = false
+        self.state = Failed
+      end
+    elsif state_changed?
+      case self.state
+      when New, Ready, Paused
+        self.active = false
+        self.success = nil
+      when RunningOnServer
+        self.active = true
+        self.success = nil
+      when RunningOnClient
+        self.active = false
+        self.success = nil
+      when Failed
+        self.active = false
+        self.success = false
+        self.state = Failed   # before_validation will fail if false is returned in the previous line
+      when Complete
+        self.active = false
+        self.success = true
+      else
+        return false
+      end
+    elsif components_changed?
+      if !self.state || self.state == New || !self.active
+        if self.components_look_ready?
+          self.state = Ready
+        else
+          self.state = New
+        end
+      end
+    end
+  end
+
+  def set_state_before_save
+    if !self.state || self.state == New
+      if self.active
+        self.state = RunningOnServer
+      elsif self.components_look_ready?
+        self.state = Ready
+      else
+        self.state = New
+      end
+    end
+  end
+
 end