Class: Crystal::Processors::RemoteCaller

Inherits:
Crystal::Processor show all
Defined in:
lib/crystal/remote/processors/remote_caller.rb

Instance Attribute Summary

Attributes inherited from Crystal::Processor

#next_processor

Instance Method Summary collapse

Methods inherited from Crystal::Processor

inspect

Constructor Details

#initialize(next_processor, result_variable = 'content') ⇒ RemoteCaller

Returns a new instance of RemoteCaller.



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# File 'lib/crystal/remote/processors/remote_caller.rb', line 7

def initialize next_processor, result_variable = 'content'
  super(next_processor)
  @result_variable = result_variable
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/crystal/remote/processors/remote_caller.rb', line 12

def call                
  return next_processor.call unless workspace.class?
          
  # prepare
  klass = workspace.class
  raise "The remote class #{klass} must be a Crystal::Remote!" unless klass.is? Crystal::Remote
  workspace.remote_object = klass.new                  
  method = workspace.method_name

  # call
  begin
    result = workspace.remote_object.run_callbacks :action, :method => method do
      workspace.remote_object.send method
    end

    ensure_correct_result! result
    workspace.remote_result = result                        

    next_processor.call
  
    # write JSON as a result if format is JSON and no one else filled it
    if workspace[@result_variable].blank?
      workspace[@result_variable] = workspace.remote_result.to_json
    end              
  rescue StandardError => e
    raise e if !workspace.params.format.json? or config.test?

    workspace[@result_variable] = {:error => e.message}.to_json
  
    logger.error e
    logger.info "\n"
  end
end