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// **********************************************************************
//
// Copyright (c) 2003-2009 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package IceInternal;
public final class ConnectionMonitor implements IceInternal.TimerTask
{
//
// Renamed from destroy to _destroy to avoid a deprecation warning caused
// by the destroy method inherited from Thread.
//
synchronized public void
destroy()
{
assert(_instance != null);
_instance = null;
_connections = null;
}
public synchronized void
add(Ice.ConnectionI connection)
{
assert(_instance != null);
_connections.add(connection);
}
public synchronized void
remove(Ice.ConnectionI connection)
{
assert(_instance != null);
_connections.remove(connection);
}
//
// Only for use by Instance.
//
ConnectionMonitor(Instance instance, int interval)
{
assert(interval > 0);
_instance = instance;
_instance.timer().scheduleRepeated(this, interval * 1000);
}
protected synchronized void
finalize()
throws Throwable
{
IceUtilInternal.Assert.FinalizerAssert(_instance == null);
IceUtilInternal.Assert.FinalizerAssert(_connections == null);
super.finalize();
}
public void
runTimerTask()
{
java.util.Set<Ice.ConnectionI> connections = new java.util.HashSet<Ice.ConnectionI>();
synchronized(this)
{
if(_instance == null)
{
return;
}
connections.clear();
connections.addAll(_connections);
}
//
// Monitor connections outside the thread synchronization,
// so that connections can be added or removed during
// monitoring.
//
java.util.Iterator<Ice.ConnectionI> iter = connections.iterator();
while(iter.hasNext())
{
Ice.ConnectionI connection = iter.next();
try
{
connection.monitor();
}
catch(Ice.LocalException ex)
{
synchronized(this)
{
if(_instance == null)
{
return;
}
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
ex.printStackTrace(pw);
pw.flush();
String s = "exception in connection monitor:\n" + sw.toString();
_instance.initializationData().logger.error(s);
}
}
catch(java.lang.Exception ex)
{
synchronized(this)
{
if(_instance == null)
{
return;
}
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
ex.printStackTrace(pw);
pw.flush();
String s = "unknown exception in connection monitor:\n" + sw.toString();
_instance.initializationData().logger.error(s);
}
}
}
}
private Instance _instance;
private java.util.Set<Ice.ConnectionI> _connections = new java.util.HashSet<Ice.ConnectionI>();
}
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