// ========================================================================
// Copyright 2011 NEXCOM Systems
// ------------------------------------------------------------------------
// 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 org.cipango.callflow;
import javax.management.Notification;
import javax.management.NotificationFilter;
import org.apache.commons.jexl.Expression;
import org.apache.commons.jexl.ExpressionFactory;
import org.apache.commons.jexl.JexlContext;
import org.apache.commons.jexl.JexlHelper;
import org.eclipse.jetty.util.log.Log;
public class CallflowNotificationFilter implements NotificationFilter
{
private String _filter;
public CallflowNotificationFilter(String filter)
{
_filter = filter;
}
@SuppressWarnings("unchecked")
public synchronized boolean isNotificationEnabled(Notification notification)
{
if (_filter == null || "".equals(_filter))
return true;
if (notification instanceof CallflowNotification)
{
try
{
CallflowNotification notif = (CallflowNotification) notification;
JexlContext jc = JexlHelper.createContext();
Expression msgExpression = null;
msgExpression = ExpressionFactory.createExpression("log." + _filter);
jc.getVars().put("log", notif.getMessageInfo());
jc.getVars().put("message", notif.getMessageInfo().getMessage());
return ((Boolean) msgExpression.evaluate(jc));
}
catch (Exception e)
{
Log.ignore(e);
}
}
return false;
}
public String getFilter()
{
return _filter;
}
public synchronized void setFilter(String filter)
{
_filter = filter;
}
}