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ServletContextSyntax.scala
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ServletContextSyntax.scala
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package org.http4s
package servlet
package syntax
import cats.effect._
import javax.servlet.{ServletContext, ServletRegistration}
import org.http4s.server.DefaultServiceErrorHandler
import org.http4s.server.defaults
trait ServletContextSyntax {
implicit def ToServletContextOps(self: ServletContext): ServletContextOps =
new ServletContextOps(self)
}
final class ServletContextOps private[syntax] (val self: ServletContext) extends AnyVal {
/** Wraps an [[HttpRoutes]] and mounts it as an [[AsyncHttp4sServlet]]
*
* Assumes non-blocking servlet IO is available, and thus requires at least Servlet 3.1.
*/
def mountService[F[_]: ConcurrentEffect: ContextShift](
name: String,
service: HttpRoutes[F],
mapping: String = "/*"): ServletRegistration.Dynamic = {
val servlet = new AsyncHttp4sServlet(
service = service,
asyncTimeout = defaults.ResponseTimeout,
servletIo = NonBlockingServletIo(DefaultChunkSize),
serviceErrorHandler = DefaultServiceErrorHandler[F]
)
val reg = self.addServlet(name, servlet)
reg.setLoadOnStartup(1)
reg.setAsyncSupported(true)
reg.addMapping(mapping)
reg
}
}
object servletContext extends ServletContextSyntax