/*
* 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.weblogger.planet.tasks;
import java.util.Date;
import java.util.Properties;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.roller.planet.business.GuicePlanetProvider;
import org.apache.roller.planet.business.startup.PlanetStartup;
import org.apache.roller.weblogger.business.runnable.RollerTaskWithLeasing;
import org.apache.roller.planet.business.PlanetFactory;
import org.apache.roller.planet.business.PlanetProvider;
import org.apache.roller.planet.business.updater.FeedUpdater;
import org.apache.roller.planet.business.updater.SingleThreadedFeedUpdater;
import org.apache.roller.weblogger.WebloggerException;
import org.apache.roller.weblogger.business.WebloggerFactory;
import org.apache.roller.weblogger.config.WebloggerConfig;
/**
* Updates Planet aggregator's database of feed entries.
* <pre>
* - Designed to be run outside of Roller via the TaskRunner class
* - Calls Planet business layer to refresh entries
* </pre>
*/
public class RefreshRollerPlanetTask extends RollerTaskWithLeasing {
private static Log log = LogFactory.getLog(RefreshRollerPlanetTask.class);
public static String NAME = "RefreshRollerPlanetTask";
// a unique id for this specific task instance
// this is meant to be unique for each client in a clustered environment
private String clientId = "unspecifiedClientId";
// a String description of when to start this task
private String startTimeDesc = "immediate";
// interval at which the task is run, default is 60 minutes
private int interval = 60;
// lease time given to task, default is 10 minutes
private int leaseTime = 10;
public String getClientId() {
return clientId;
}
public Date getStartTime(Date currentTime) {
return getAdjustedTime(currentTime, startTimeDesc);
}
public String getStartTimeDesc() {
return startTimeDesc;
}
public int getInterval() {
return this.interval;
}
public int getLeaseTime() {
return this.leaseTime;
}
public void init() throws WebloggerException {
this.init(RefreshRollerPlanetTask.NAME);
}
@Override
public void init(String name) throws WebloggerException {
super.init(name);
// get relevant props
Properties props = this.getTaskProperties();
// extract clientId
String client = props.getProperty("clientId");
if(client != null) {
this.clientId = client;
}
// extract start time
String startTimeStr = props.getProperty("startTime");
if(startTimeStr != null) {
this.startTimeDesc = startTimeStr;
}
// extract interval
String intervalStr = props.getProperty("interval");
if(intervalStr != null) {
try {
this.interval = Integer.parseInt(intervalStr);
} catch (NumberFormatException ex) {
log.warn("Invalid interval: "+intervalStr);
}
}
// extract lease time
String leaseTimeStr = props.getProperty("leaseTime");
if(leaseTimeStr != null) {
try {
this.leaseTime = Integer.parseInt(leaseTimeStr);
} catch (NumberFormatException ex) {
log.warn("Invalid leaseTime: "+leaseTimeStr);
}
}
}
public void runTask() {
try {
log.info("Refreshing Planet subscriptions");
FeedUpdater updater = new SingleThreadedFeedUpdater();
updater.updateSubscriptions();
} catch (Throwable t) {
log.error("ERROR refreshing planet", t);
} finally {
// always release
WebloggerFactory.getWeblogger().release();
PlanetFactory.getPlanet().release();
}
}
public static void main(String[] args) throws Exception {
// before we can do anything we need to bootstrap the planet backend
PlanetStartup.prepare();
// we need to use our own planet provider for integration
String guiceModule = WebloggerConfig.getProperty("planet.aggregator.guice.module");
PlanetProvider provider = new GuicePlanetProvider(guiceModule);
PlanetFactory.bootstrap(provider);
RefreshRollerPlanetTask task = new RefreshRollerPlanetTask();
task.init();
task.run();
}
}