skinny.view.velocity.Velocity.scala Maven / Gradle / Ivy

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package skinny.view.velocity

import java.io.StringWriter
import javax.servlet.http.{ HttpServletRequest, HttpServletResponse }
import org.apache.velocity.tools.view.VelocityView

/**
 * Velocity renderer.
 *
 * @param velocityView VelocityView
 */
case class Velocity(velocityView: VelocityView) {

  def render(path: String, values: Map[String, Any], request: HttpServletRequest, response: HttpServletResponse): String = {
    val context = velocityView.createContext(request, response)
    values.foreach { case (k, v) => context.put(k, v) }
    val template = velocityView.getTemplate(path)
    val writer = new StringWriter
    velocityView.merge(template, context, writer)
    writer.toString
  }

  def templateExists(path: String): Boolean = velocityView.getVelocityEngine.resourceExists(path)

}