1 files changed, 75 insertions, 0 deletions
diff --git a/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/event/Notifier.java b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/event/Notifier.java
new file mode 100644
index 0000000000..d96e1ad118
--- /dev/null
+++ b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/event/Notifier.java
@@ -0,0 +1,75 @@
+/***************************************************************************
+ * Copyright (c) 2004 - 2008 Eike Stepper, Germany.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ **************************************************************************/
+package org.eclipse.net4j.util.event;
+
+import org.eclipse.net4j.internal.util.bundle.OM;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Eike Stepper
+ */
+public class Notifier implements INotifier.Introspection
+{
+  /**
+   * TODO Optimize by storing an array
+   */
+  private List<IListener> listeners = new ArrayList<IListener>(0);
+
+  public Notifier()
+  {
+  }
+
+  public void addListener(IListener listener)
+  {
+    synchronized (listeners)
+    {
+      listeners.add(listener);
+    }
+  }
+
+  public void removeListener(IListener listener)
+  {
+    synchronized (listeners)
+    {
+      listeners.remove(listener);
+    }
+  }
+
+  public boolean hasListeners()
+  {
+    return !listeners.isEmpty();
+  }
+
+  public IListener[] getListeners()
+  {
+    synchronized (listeners)
+    {
+      return listeners.toArray(new IListener[listeners.size()]);
+    }
+  }
+
+  public void fireEvent(IEvent event)
+  {
+    for (IListener listener : getListeners())
+    {
+      try
+      {
+        listener.notifyEvent(event);
+      }
+      catch (Exception ex)
+      {
+        OM.LOG.error(ex);
+      }
+    }
+  }
+}