Rename PluginOrchestrator to PluginRunner

Test plan:
- Unit tests pass

Change-Id: I38f73612d0a541dc2031885b9be8a55b23c5a1d3

stager/lib/vcap/stager.rb

@@ -1,8 +1,8 @@
 require 'vcap/stager/constants'
 require 'vcap/stager/config'
 require 'vcap/stager/plugin_action_proxy'
-require 'vcap/stager/plugin_orchestrator'
-require 'vcap/stager/plugin_orchestrator_error'
+require 'vcap/stager/plugin_runner'
+require 'vcap/stager/plugin_runner_error'
 require 'vcap/stager/plugin_registry'
 require 'vcap/stager/task'
 require 'vcap/stager/task_error'

stager/lib/vcap/stager/plugin_orchestrator.rb → stager/lib/vcap/stager/plugin_runner.rb

@@ -1,13 +1,12 @@
 require 'fileutils'
 require 'rubygems'
 
-
 require 'vcap/cloud_controller/ipc'
 require 'vcap/logging'
 require 'vcap/stager/constants'
 require 'vcap/stager/droplet'
 require 'vcap/stager/plugin_action_proxy'
-require 'vcap/stager/plugin_orchestrator_error'
+require 'vcap/stager/plugin_runner_error'
 require 'vcap/stager/plugin_registry'
 
 module VCAP
@@ -17,7 +16,7 @@ module Stager
 
 # Responsible for orchestrating the execution of all staging plugins selected
 # by the user.
-class VCAP::Stager::PluginOrchestrator
+class VCAP::Stager::PluginRunner
   # @param source_dir      String  Directory containing application source
   # @param dest_dir        String  Directory where the staged droplet should live
   # @param app_properties

stager/lib/vcap/stager/plugin_runner_error.rb

@@ -0,0 +1,8 @@
+module VCAP
+  module Stager
+    class PluginRunnerError       < StandardError; end
+    class MissingFrameworkPluginError   < PluginRunnerError; end
+    class DuplicateFrameworkPluginError < PluginRunnerError; end
+    class UnknownPluginTypeError        < PluginRunnerError; end
+  end
+end

stager/spec/unit/plugin_orchestrator_spec.rb → stager/spec/unit/plugin_runner_spec.rb

@@ -3,7 +3,7 @@
 require 'fileutils'
 require 'tmpdir'
 
-describe VCAP::Stager::PluginOrchestrator do
+describe VCAP::Stager::PluginRunner do
   describe '#run_plugins' do
     before :each do
       @src_dir = Dir.mktmpdir
@@ -37,14 +37,14 @@
 
     it 'should raise an error for unknown plugins' do
       @app_props['plugins'] = [{'gem' => {'name' => 'invalid_gem'}}]
-      orch = VCAP::Stager::PluginOrchestrator.new(@src_dir, @dst_dir, @app_props, @cc_info)
+      orch = VCAP::Stager::PluginRunner.new(@src_dir, @dst_dir, @app_props, @cc_info)
       expect do
         orch.run_plugins
       end.to raise_error(LoadError)
     end
 
     it 'should raise an error if no framework plugin is supplied' do
-      orch = VCAP::Stager::PluginOrchestrator.new(@src_dir, @dst_dir, @app_props, @cc_info)
+      orch = VCAP::Stager::PluginRunner.new(@src_dir, @dst_dir, @app_props, @cc_info)
       expect do
         orch.run_plugins
       end.to raise_error(VCAP::Stager::MissingFrameworkPluginError)
@@ -56,7 +56,7 @@
         p = create_mock_plugin("plugin_#{i}", :framework)
         VCAP::Stager::PluginRegistry.register_plugin(p)
       end
-      orch  = VCAP::Stager::PluginOrchestrator.new(@src_dir, @dst_dir, @app_props, @cc_info)
+      orch  = VCAP::Stager::PluginRunner.new(@src_dir, @dst_dir, @app_props, @cc_info)
       expect do
         orch.run_plugins
       end.to raise_error(VCAP::Stager::DuplicateFrameworkPluginError)
@@ -65,7 +65,7 @@
     it 'should raise an error if a plugin of unknown type is supplied' do
       p = create_mock_plugin(:plugin0, :invalid_plugin_type)
       VCAP::Stager::PluginRegistry.register_plugin(p)
-      orch = VCAP::Stager::PluginOrchestrator.new(@src_dir, @dst_dir, @app_props, @cc_info)
+      orch = VCAP::Stager::PluginRunner.new(@src_dir, @dst_dir, @app_props, @cc_info)
       expect do
         orch.run_plugins
       end.to raise_error(VCAP::Stager::UnknownPluginTypeError)
@@ -78,7 +78,7 @@
         p.should_receive(:stage).with(any_args())
         VCAP::Stager::PluginRegistry.register_plugin(p)
       end
-      orch = VCAP::Stager::PluginOrchestrator.new(@src_dir, @dst_dir, @app_props, @cc_info)
+      orch = VCAP::Stager::PluginRunner.new(@src_dir, @dst_dir, @app_props, @cc_info)
       orch.run_plugins
     end
   end