Class: BPM::PluginProcessor

Inherits:
Tilt::Template
  • Object
show all
Defined in:
lib/bpm/pipeline/plugin_processor.rb

Overview

A processor that will invoke a JavaScript-based plugin provided by a package in the system. The passed method name will be invoked on the plugin.

Direct Known Subclasses

FormatProcessor

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.method_name ⇒ Object 



19
20
21
 
# File 'lib/bpm/pipeline/plugin_processor.rb', line 19

def self.method_name
  @method_name
end

.plugin_name ⇒ Object 



23
24
25
 
# File 'lib/bpm/pipeline/plugin_processor.rb', line 23

def self.plugin_name
  @plugin_opts["main"]
end

.with_plugin(plugin_opts, method_name) ⇒ Object 



10
11
12
13
14
15
16
17
 
# File 'lib/bpm/pipeline/plugin_processor.rb', line 10

def self.with_plugin(plugin_opts, method_name)
  ret = Class.new(self)
  ret.instance_eval do
    @method_name  = method_name
    @plugin_opts  = plugin_opts
  end
  ret
end

Instance Method Details

#evaluate(context, locals, &block) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
 
# File 'lib/bpm/pipeline/plugin_processor.rb', line 30

def evaluate(context, locals, &block)
  plugin_ctx = context.environment.plugin_js_for self.class.plugin_name
  project = context.environment.project
  pkg, module_id = project.package_and_module_from_path file

  filepath   = file.to_s

  # MEGAHAX!!!
  # This issue that we specifically target only appears when a format
  # is re-provided twice and the re-provider has a transport.
  # This prevents the format from being inappropriately wrapped in
  # the transport.
  if self.class.method_name == 'compileTransport'
    plugin = pkg.find_transport_plugins(project).first
    if !plugin || plugin['main'] != self.class.plugin_name
      return data
    end
  end

  plugin_context = BPM::PluginContext.new(pkg, module_id);
  minifier_js = plugin_context.minify_as_js;

  # CTX.additionalContext is the minifier's execution environment
  plugin_ctx += <<-end_eval
      ; // Safety
      CTX = #{plugin_context.to_json};
      DATA = #{data.to_json};
      CTX.additionalContext=#{minifier_js};
  end_eval

  ctx = BPM.compile_js(plugin_ctx)
  ctx.eval("BPM_PLUGIN.#{self.class.method_name}(DATA, CTX, '#{filepath}')")

end

#prepare ⇒ Object 



27
28
 
# File 'lib/bpm/pipeline/plugin_processor.rb', line 27

def prepare
end