hello

1 files changed, 82 insertions, 0 deletions

diff --git a/sources/scala/xml/LoggedNodeFactory.scala b/sources/scala/xml/LoggedNodeFactory.scala
new file mode 100644
index 0000000000..12945a7762
--- /dev/null
+++ b/sources/scala/xml/LoggedNodeFactory.scala
@@ -0,0 +1,82 @@
+package scala.xml;
+
+/** This class logs what the nodefactory is actually doing.
+If you want to see what happens during loading, use it like this:
+object testLogged with Application {
+
+  val x = new scala.xml.nobinding.NoBindingFactoryAdapter
+            with scala.xml.LoggedNodeFactory[scala.xml.Elem]()
+            with scala.util.logging.ConsoleLogger;
+
+  Console.println("Start");
+
+  val doc = x.loadXML(new org.xml.sax.InputSource("http://lamp.epfl.ch/~buraq"));
+
+  Console.println("End");
+
+  Console.println(doc);
+}
+
+*/
+abstract class 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;
+  val logCharData  = false;
+
+  final val NONE  = 0;
+  final val CACHE = 1;
+  final val FULL  = 2;
+  /** 0 = no loggging, 1 = cache hits, 2 = detail */
+  val logCompressLevel  = 1;
+
+  // methods of NodeFactory
+
+  /** logged version of makeNode method */
+  override def makeNode(uname: UName, attrSeq:AttributeSeq, children:Seq[Node]): A = {
+    if(logNode)
+      log("[makeNode for "+uname+"]");
+
+    val hash    = Utility.hashCode(uname, attrSeq.hashCode(), children) ;
+
+    if(logCompressLevel >= FULL) {
+      log("[hashcode total:"+hash);
+      log(" elem name "+uname+" hash "+(41 * uname.uri.hashCode() % 7 + uname.label.hashCode()));
+      log(" attrs     "+attrSeq+" hash "+attrSeq.hashCode());
+      log(" children :"+children+" hash "+children.hashCode());
+    }
+
+    if(!cache.get( hash ).isEmpty && (logCompressLevel >= CACHE))
+      log("[cache hit !]");
+
+    super.makeNode(uname, attrSeq, 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);
+  }
+
+  /* 2 be removed
+  override def makeCharData(s: String) = {}
+  */
+
+}