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/*
 * Copyright (C) 2005, The Beangle Software.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 */

package org.beangle.commons.io

import org.beangle.commons.lang.Strings

import java.net.{URI, URL, URLConnection}
import java.util.jar.JarFile

object Jars {

  val protocols = Set("jar", "zip", "wsjar", "vsfzip")

  val URLSeparator = "!/"

  def isJarURL(url: URL): Boolean =
    protocols.contains(url.getProtocol)

  def useCachesIfNecessary(con: URLConnection): Unit =
    con.setUseCaches(con.getClass.getSimpleName.startsWith("JNLP"))

  def toURI(location: String): URI =
    new URI(Strings.replace(location, " ", "%20"));

  /** Resolve the given jar file URL into a JarFile object.
    */
  def getJarFile(jarFileUrl: String): JarFile =
    if (jarFileUrl.startsWith("file:"))
      new JarFile(Jars.toURI(jarFileUrl).getSchemeSpecificPart())
    else
      new JarFile(jarFileUrl)
}