net.liftweb.util.Safe.scala Maven / Gradle / Ivy
The newest version!
/*
* Copyright 2006-2011 WorldWide Conferencing, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.liftweb
package util
/**
* Manage the current "safety" state of the stack
*/
object Safe {
private val threadLocal = new ThreadGlobal[Int]
/**
* Is the current context "safe" for the object with the
* given safety code?
*/
def safe_?(test : Int) : Boolean = test == threadLocal.value
/**
* Marks access to a given object as safe for the duration of the function
*/
def runSafe[T](x : Int)(f : => T) : T = {
threadLocal.doWith(x)(f)
}
def randomString(len: Int): String = StringHelpers.randomString(len)
}