AsposeExporter

module AsposeExpoter
	
	Rjb::load(File.join(Rails.root, '/vendor/lib/Aspose.Words.jdk16.jar'), jvmargs=['-Djava.awt.headless=true'])
	Rjb::import('com.aspose.words.License').new._invoke('setLicense', 'Ljava.io.InputStream;', Rjb::import('java.io.FileInputStream').new(Rjb::import('java.io.File').new(File.join(Rails.root, '/vendor/lib/Aspose.Words.lic'))))
	TempFileRoot = '/tmp'
	
	def to_data_xml_file
		fn = File.join(TempFileRoot, "data-xml_#{id}_#{Time.now.to_i}.xml")
		open(fn,'w') do |f|
			f.write to_xml
		end
		fn
	end

	def to_word_xml_data(style_name = layout_class)
		xslt = XML::XSLT.new
		xslt.xml = to_xml
		xslt.xsl = xsl_template_path(style_name)
		if block_given?
			yield(xslt)
		else
			xslt.serve
		end
	end

	
	def to_word_xml(style_name = layout_class)
		fn = File.join(TempFileRoot, "#{self.class.to_s.underscore}-#{id}-#{style_name}-#{rand(99999)}.xml")
		to_word_xml_data(style_name) do |xslt|
			xslt.save(fn)
		end
		fn
	end
	
	def combine_to_generate_docx(new_docx_path, style_name = layout_class)
		FileUtils.copy(docx_template_path(style_name), new_docx_path)
		Zip::Archive.open(new_docx_path, Zip::CREATE) do |zipfile|
      zipfile.add_or_replace_buffer('word/document.xml', to_word_xml_data(style_name))
    end
		new_docx_path
	end
	
	def load_aspose_doc_and_xml(style_name = layout_class)
		word_xml_fn = to_word_xml(style_name)
		return nil unless File.exists?(word_xml_fn)
		aspose_doc = Rjb::import('com.aspose.words.Document').new(word_xml_fn)
		yield(aspose_doc)
	end
	
	def convert_and_save_to(fn, style_name = layout_class)
		load_aspose_doc_and_xml(style_name) do |doc|
			doc.save(fn)
		end
	end
	
end