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/**
* Copyright 2009 Google Inc.
*
* 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.appjet.oui;
import scala.collection.mutable.HashMap;
import java.util.Enumeration;
import java.util.zip.GZIPOutputStream;
import java.io.ByteArrayOutputStream;
object Util {
def noCacheHeaders =
Map("Expires" -> "Sat, 5 Feb 1983 07:07:07 GMT",
"Last-Modified" -> (new java.util.Date()).toGMTString(),
"Cache-Control" -> "no-store, no-cache, must-revalidate, max-age=0, post-check=0, pre-check=0",
"Pragma" -> "no-cache");
class RichEnumeration[T](enumeration: Enumeration[T]) extends Iterator[T] {
def hasNext: Boolean = enumeration.hasMoreElements();
def next: T = enumeration.nextElement();
}
class RichIterator[T](iterator: java.util.Iterator[T]) extends Iterator[T] {
def hasNext: Boolean = iterator.hasNext();
def next: T = iterator.next();
}
implicit def enumerationToRichEnumeration[T](
enumeration: Enumeration[T]): RichEnumeration[T] = {
new RichEnumeration(enumeration)
}
implicit def iteratorToRichIterator[T](
iterator: java.util.Iterator[T]): RichIterator[T] = {
new RichIterator(iterator);
}
def enumerationToArray[T](e: Enumeration[T]): Array[T] =
enumerationToRichEnumeration(e).toList.toArray;
def stringToHTML(str: String): String = {
val result = new StringBuilder(str.length);
var lastCharBlank = false;
for(i <- 0 until str.length) {
val c = str.charAt(i);
if (c == ' ') {
// every second consecutive space becomes a
if (lastCharBlank) {
lastCharBlank = false;
result.append(" ");
}
else {
lastCharBlank = true;
result.append(' ');
}
} else {
lastCharBlank = false;
if (c == '&') result.append("&");
else if (c == '<') result.append("<");
else if (c == '>') result.append(">");
else if (c == '\n') result.append("<br/>\n");
else if (c == '\t') {
for(j <- 1 to 7) {
result.append(" ");
}
result.append(' ');
}
else {
val code = c.toInt;
if (code < 127) {
result.append(c);
}
else {
// use character code
result.append("&#");
result.append(code);
result.append(';');
}
}
}
}
return result.toString;
}
def gzip(bytes: Array[Byte]): Array[Byte] = {
val baos = new ByteArrayOutputStream();
val gzos = new GZIPOutputStream(baos);
gzos.write(bytes, 0, bytes.length);
gzos.close();
baos.toByteArray();
}
}
object timekeeper {
var timestamp: Long = 0;
def time: Long = {
val t = System.currentTimeMillis();
synchronized {
if (t <= timestamp) {
timestamp += 1
} else {
timestamp = t
}
timestamp
}
}
def update(t: Long) = synchronized {
if (t > timestamp)
timestamp = t+1;
}
}
trait LoggingHandler extends org.mortbay.jetty.handler.AbstractHandler {
abstract override def handle(target: String, req: javax.servlet.http.HttpServletRequest, res: javax.servlet.http.HttpServletResponse, dispatch: Int) {
println("all ("+isStarted+") handling: "+(this match {
case hc: org.mortbay.jetty.handler.HandlerCollection => hc.getHandlers.mkString(", ");
case ahc: org.mortbay.jetty.handler.AbstractHandlerContainer => ahc.getChildHandlers.mkString(", ");
case x => "(unknown)";
}));
super.handle(target, req, res, dispatch);
}
override def doStart() {
println("all started.");
// Thread.dumpStack();
try {
super.doStart();
} catch {
case e: Exception => {
e.printStackTrace();
throw e;
}
} finally {
println("and: "+isStarted);
}
}
override def doStop() {
println("all stopped.");
// Thread.dumpStack();
super.doStop();
}
}
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