Play Framework/Scala example source code file (MonkeyPatcher.scala)

This example Play Framework source code file (MonkeyPatcher.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Play Framework (and Scala) source code examples by using tags.

All credit for the original source code belongs to Play Framework; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Play Framework tags/keywords

anyref, api, field, lib, library, monkeypatcher, play framework, ssl, web service, ws

The MonkeyPatcher.scala Play Framework example source code

/*
 *
 *  * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 *
 */
package play.api.libs.ws.ssl

import java.lang.reflect.Field

/**
 *
 */
trait MonkeyPatcher {

  // Define unsafe to monkeypatch fields
  private val unsafe: sun.misc.Unsafe = {
    val field = Class.forName("sun.misc.Unsafe").getDeclaredField("theUnsafe")
    field.setAccessible(true)
    field.get(null).asInstanceOf[sun.misc.Unsafe]
  }

  /**
   * Monkeypatches any given field.
   *
   * @param field the field to change
   * @param newObject the new object to place in the field.
   */
  def monkeyPatchField(field: Field, newObject: AnyRef) {
    val base = unsafe.staticFieldBase(field)
    val offset = unsafe.staticFieldOffset(field)
    unsafe.putObject(base, offset, newObject)
  }

}