Report Controller

gistfile1.groovy

package demo

class ReportController {
  /**
   * Generate PDF report
   *
   * phantomjs ./scripts/phantomjs/rasterizestdout.js <url of report> <name>.pdf <url of footer>
   *
   * http://stackoverflow.com/questions/12403817/phantomjs-pipe-input/17286691#17286691
   * Need this link in rasterize.js:
   *   page.render('/dev/stdout', { format: 'pdf' });
   */
  def index(Long profileId, Long evaluationId, Long groupId, String reportName) {
    String serverURL = grailsApplication.config.grails.serverURL
    String phantomPDFScript = grailsApplication.config.grails.phantomPDFScript

    log.trace "Configured serverURL: ${serverURL}"
    def reportUrl = "${serverURL}/index.html#/profile/${profileId}/evaluation/${evaluationId}/group/${groupId}/report"
    log.trace "Report URL: ${reportUrl}"
    def footImageUrl = "${serverURL}/images/footer-no-logo.jpg"
    log.trace "Footer Image URL: ${footImageUrl}"

    List cmd = ['/usr/local/bin/phantomjs', "${phantomPDFScript}", "${reportUrl}/${reportName}", "${reportName}.pdf", "${footImageUrl}"]
    log.trace "PhantomJS command: ${cmd}"

    // https://grails.org/FAQ#Q: Can I use the render method to return a binary file to the client?
    response.contentType = "application/pdf"

    def process = cmd.execute()
    process.consumeProcessOutput(response.outputStream, response.outputStream)
    process.waitFor()
  }
}