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Lift Framework example source code file (ParseDouble.scala)
The Lift Framework ParseDouble.scala source code/* * Copyright 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 common /** * Safely parse a String into a Double, avoiding the JVM bug * that causes the thread to hang if the String is * 2.2250738585072012e-308 * * This wonkaround is not recommended anymore. Instead consider using a * newer version of JVM which has the necessary fix. * * @see http://blogs.oracle.com/security/entry/security_alert_for_cve-2010-44 */ @deprecated("Use a newer or patched JVM instead.") object ParseDouble { private val BrokenDouble = BigDecimal("2.2250738585072012e-308") /** * Parse a String to a Double avoiding the * JVM parsing bug. May throw NumberFormatException * if the String is not properly formatted */ def apply(str: String): Double = { val d = BigDecimal(str) if (d == BrokenDouble) error("Error parsing 2.2250738585072012e-308") else d.doubleValue } /** * A handy dandy extractor */ def unapply(in: String): Option[Double] = try { Some(apply(in)) } catch { case e: Exception => None } } Other Lift Framework examples (source code examples)Here is a short list of links related to this Lift Framework ParseDouble.scala source code file: |
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