←  config.scala 

package ru.circumflex.freemarker

import ru.circumflex.markeven
import ru.circumflex.core._
import ru.circumflex.web._
import freemarker.template._
import freemarker.core.Environment
import freemarker.cache._
import java.io.StringWriter

Default FreeMarker Configuration

The default FreeMarker configuration implies following:

  • templates are loaded from ${webapp-root}/templates directory or, if failed, from application classpath;
  • all template errors result in exception to be thrown to controller;
  • character encoding defaults to UTF-8;
  • the ScalaObjectWrapper is used for Scala core types.

You can alter template loading dynamically using addLoader and setLoaders methods, but in general this is only acceptable in initialization code. In any case make sure you know what you are doing first.

 
class DefaultConfiguration extends Configuration {

  // Loaders

  protected var _loaders: Seq[TemplateLoader] = Nil
  def loaders = _loaders
  def addLoader(loader: TemplateLoader): this.type = {
    _loaders ++= List(loader)
    setTemplateLoader(new MultiTemplateLoader(loaders.toArray))
    return this
  }
  def setLoaders(ldrs: TemplateLoader*): this.type = {
    _loaders = ldrs.toList
    setTemplateLoader(new MultiTemplateLoader(loaders.toArray))
    return this
  }

  // Defaults

  setObjectWrapper(new ScalaObjectWrapper())
  setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER)
  setDefaultEncoding("utf-8")
  setSharedVariable("me", MarkevenDirective)

  try {
    addLoader(new WebappTemplateLoader(servletContext, "/templates"))
  } catch {
    case e =>
      CX_LOG.warn("Not running in webapp context.")
  }
  addLoader(new ClassTemplateLoader(getClass, "/"))

}

object MarkevenDirective extends TemplateDirectiveModel {
  def execute(env: Environment,
              params: java.util.Map[_, _],
              loopVars: Array[TemplateModel],
              body: TemplateDirectiveBody) = {
    val nested = new StringWriter
    body.render(nested)
    env.getOut.write(markeven.toHtml(nested.toString))
  }
}