/*************************************************************************
* Copyright 2009-2014 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
************************************************************************/
package com.eucalyptus.stats.emitters;
import com.eucalyptus.stats.SystemMetric;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
/**
* Created by zhill on 8/8/14.
* <p/>
* An event emitter backed by local-host filesystem. Events are written to a filesystem with
* a specific layout/format.
* <p/>
* Events are written in json with service names forming a directory tree.
*/
public class LoggingEventEmitter implements EventEmitter {
private static final Logger logger = Logger.getLogger(LoggingEventEmitter.class);
private Level logLevel;
public LoggingEventEmitter() {
this(Level.INFO);
}
public LoggingEventEmitter(Level p) {
this.logLevel = p;
}
@Override
public boolean emit(SystemMetric event) {
try {
if (event == null) {
return false;
}
logger.log(logLevel, event.toString());
return true;
} catch (Exception e) {
logger.error("Failed to emit event!",e);
}
return false;
}
@Override
public boolean doesBatching() {
return false;
}
@Override
public void check() throws Exception {
return;
}
}