1 files changed, 52 insertions, 0 deletions
diff --git a/trunk/etherpad/src/etherpad/pad/activepads.js b/trunk/etherpad/src/etherpad/pad/activepads.js
new file mode 100644
index 0000000..07f5e2e
--- /dev/null
+++ b/trunk/etherpad/src/etherpad/pad/activepads.js
@@ -0,0 +1,52 @@
+/**
+ * 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.
+ */
+
+import("jsutils.cmp");
+
+jimport("net.appjet.common.util.LimitedSizeMapping");
+
+var HISTORY_SIZE = 100;
+
+function _getMap() {
+  if (!appjet.cache['activepads']) {
+    appjet.cache['activepads'] = {
+      map: new LimitedSizeMapping(HISTORY_SIZE)
+    };
+  }
+  return appjet.cache['activepads'].map;
+}
+
+function touch(padId) {
+  _getMap().put(padId, +(new Date));
+}
+
+function getActivePads() {
+  var m = _getMap();
+  var a = m.listAllKeys().toArray();
+  var activePads = [];
+  for (var i = 0; i < a.length; i++) {
+    activePads.push({
+      padId: a[i],
+      timestamp: m.get(a[i])
+    });
+  }
+
+  activePads.sort(function(a,b) { return cmp(b.timestamp,a.timestamp); });
+  return activePads;
+}
+
+
+