/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. The ASF licenses this file to You
* 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. For additional information regarding
* copyright in this work, please see the NOTICE file in the top level
* directory of this distribution.
*/
package org.apache.roller.ui.core.pings;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.roller.RollerException;
import org.apache.roller.model.Roller;
import org.apache.roller.model.RollerFactory;
import java.util.TimerTask;
/**
* Task for processing the ping queue at fixed intervals. This is set up during context initialization by {@link
* RollerContext}. The queue processing interval is currently set from the configuration {@link
* org.apache.roller.config.PingConfig} at startup time only.
*
* @author <a href="mailto:anil@busybuddha.org">Anil Gangolli</a>
*/
public class PingQueueTask extends TimerTask {
private static final Log logger = LogFactory.getLog(PingQueueTask.class);
// The periodic interval (in minutes) at which we are configured to run
long intervalMins;
/**
* Initialize the task.
*
* @throws RollerException
*/
public void init(long intervalMins) throws RollerException {
PingQueueProcessor.init();
this.intervalMins = intervalMins;
}
/**
* Get the task's configured interval (in minutes).
*
* @return the tasks configured interval (in minutes).
*/
public long getIntervalMins() {
return intervalMins;
}
/**
* Run the task once.
*/
public void run() {
// Call the ping queue processor to process the queue
Roller roller = null;
try {
roller = RollerFactory.getRoller();
PingQueueProcessor.getInstance().processQueue();
roller.flush();
} catch (RollerException e) {
// This is probably duplicate logging. May want to eliminate it, but should be rare.
logger.error("Error while processing ping queuer", e);
} finally {
if (roller != null) roller.release();
}
}
}