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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.xml
package factory
/** This class logs what the nodefactory is actually doing.
* If you want to see what happens during loading, use it like this:
{{{
object testLogged extends App {
val x = new scala.xml.parsing.NoBindingFactoryAdapter
with scala.xml.factory.LoggedNodeFactory[scala.xml.Elem]
with scala.util.logging.ConsoleLogger
Console.println("Start")
val doc = x.load(new java.net.URL("http://example.com/file.xml"))
Console.println("End")
Console.println(doc)
}
}}}
*
* @author Burak Emir
* @version 1.0
*/
trait LoggedNodeFactory[A <: Node] extends NodeFactory[A] with scala.util.logging.Logged {
// configuration values
val logNode = true
val logText = false
val logComment = false
val logProcInstr = false
final val NONE = 0
final val CACHE = 1
final val FULL = 2
/** 0 = no logging, 1 = cache hits, 2 = detail */
val logCompressLevel = 1
// methods of NodeFactory
/** logged version of makeNode method */
override def makeNode(pre: String, label: String, attrSeq: MetaData,
scope: NamespaceBinding, children: Seq[Node]): A = {
if (logNode)
log("[makeNode for "+label+"]");
val hash = Utility.hashCode(pre, label, attrSeq.##, scope.##, children)
/*
if(logCompressLevel >= FULL) {
log("[hashcode total:"+hash);
log(" elem name "+uname+" hash "+ ? ));
log(" attrs "+attrSeq+" hash "+attrSeq.hashCode());
log(" children :"+children+" hash "+children.hashCode());
}
*/
if (!cache.get( hash ).isEmpty && (logCompressLevel >= CACHE))
log("[cache hit !]");
super.makeNode(pre, label, attrSeq, scope, children)
}
override def makeText(s: String) = {
if (logText)
log("[makeText:\""+s+"\"]");
super.makeText(s)
}
override def makeComment(s: String): Seq[Comment] = {
if (logComment)
log("[makeComment:\""+s+"\"]");
super.makeComment(s)
}
override def makeProcInstr(t: String, s: String): Seq[ProcInstr] = {
if (logProcInstr)
log("[makeProcInstr:\""+t+" "+ s+"\"]");
super.makeProcInstr(t, s)
}
}
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