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/* Copyright (c) 2011 Peter Troshin
*
* JAva Bioinformatics Analysis Web Services (JABAWS) @version: 2.0
*
* This library is free software; you can redistribute it and/or modify it under the terms of the
* Apache License version 2 as published by the Apache Software Foundation
*
* This library 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 Apache
* License for more details.
*
* A copy of the license is in apache_license.txt. It is also available here:
* @see: http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Any republication or derived work distributed in source code form
* must include this copyright and license notice.
*/
package compbio.stat.servlet;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.apache.log4j.Logger;
import compbio.engine.conf.PropertyHelperManager;
import compbio.engine.client.EngineUtil;
import compbio.stat.collector.ExecutionStatCollector;
import compbio.stat.collector.StatDB;
import compbio.util.PropertyHelper;
import compbio.util.Util;
public class StatisticCollector implements ServletContextListener {
static PropertyHelper ph = PropertyHelperManager.getPropertyHelper();
private final Logger log = Logger.getLogger(StatisticCollector.class);
private ScheduledFuture<?> localcf;
private ScheduledFuture<?> clustercf;
private ScheduledExecutorService executor;
@Override
public void contextDestroyed(ServletContextEvent arg0) {
try {
if (localcf != null) {
localcf.cancel(true);
}
if (clustercf != null) {
clustercf.cancel(true);
}
executor.shutdown();
executor.awaitTermination(3, TimeUnit.SECONDS);
} catch (InterruptedException e) {
log.warn(e.getMessage(), e);
} finally {
StatDB.shutdownDBServer();
executor.shutdownNow();
}
}
@Override
public void contextInitialized(ServletContextEvent arg0) {
String clusterWorkDir = getClusterJobDir();
int clusterMaxRuntime = getClusterJobTimeOut();
int localMaxRuntime = getLocalJobTimeOut();
String localWorkDir = EngineUtil.convertToAbsolute(getLocalJobDir());
log.info("Initializing statistics collectors");
executor = Executors.newScheduledThreadPool(2);
if (collectClusterStats()) {
// collect statistics with this frequency
long CollectingFrequency = updateClusterStatsFrequency();
// CollectingFrequency = 0 if the parameter is not found
if (0 == CollectingFrequency) {
CollectingFrequency = 1;
}
ExecutionStatCollector clusterCollector = new ExecutionStatCollector(clusterWorkDir, clusterMaxRuntime);
clustercf = executor.scheduleAtFixedRate(clusterCollector, 30, 60 * CollectingFrequency, TimeUnit.SECONDS);
log.info("Collecting cluster statistics every " + CollectingFrequency + " minutes");
} else {
log.info("Cluster statistics collector is disabled or not configured! ");
}
if (collectLocalStats()) {
// collect statistics with this frequency
long CollectingFrequency = updateLocalStatsFrequency();
// CollectingFrequency = 0 if the parameter is not found
if (0 == CollectingFrequency) {
CollectingFrequency = 1;
}
ExecutionStatCollector localCollector = new ExecutionStatCollector( localWorkDir, localMaxRuntime);
localcf = executor.scheduleAtFixedRate(localCollector, 30, 60 * CollectingFrequency, TimeUnit.SECONDS);
log.info("Collecting local statistics every " + CollectingFrequency + " minutes");
} else {
log.info("Local statistics collector is disabled or not configured! ");
}
}
static String getClusterJobDir() {
return getStringProperty(ph.getProperty("cluster.tmp.directory"));
}
static int getClusterJobTimeOut() {
int maxRunTime = 24 * 7;
String clusterMaxRuntime = ph.getProperty("cluster.stat.maxruntime");
if (clusterMaxRuntime != null) {
clusterMaxRuntime = clusterMaxRuntime.trim();
maxRunTime = Integer.parseInt(clusterMaxRuntime);
}
return maxRunTime;
}
static int getLocalJobTimeOut() {
int maxRunTime = 24;
String localMaxRuntime = ph.getProperty("local.stat.maxruntime");
if (localMaxRuntime != null) {
localMaxRuntime = localMaxRuntime.trim();
maxRunTime = Integer.parseInt(localMaxRuntime);
}
return maxRunTime;
}
static String getLocalJobDir() {
return getStringProperty(ph.getProperty("local.tmp.directory"));
}
private static String getStringProperty(String propName) {
if (propName != null) {
propName = propName.trim();
}
return propName;
}
private static int getIntProperty(String propValue) {
int value = 0;
if (!Util.isEmpty(propValue)) {
propValue = propValue.trim();
value = Integer.parseInt(propValue);
}
return value;
}
static boolean collectClusterStats() {
return getBooleanProperty(ph
.getProperty("cluster.stat.collector.enable"));
}
static boolean collectLocalStats() {
return getBooleanProperty(ph.getProperty("local.stat.collector.enable"));
}
static int updateClusterStatsFrequency() {
return getIntProperty(ph
.getProperty("cluster.stat.collector.update.frequency"));
}
static int updateLocalStatsFrequency() {
return getIntProperty(ph.getProperty("local.stat.collector.update.frequency"));
}
private static boolean getBooleanProperty(String propValue) {
boolean enabled = false;
if (!Util.isEmpty(propValue)) {
propValue = propValue.trim();
enabled = Boolean.parseBoolean(propValue);
}
return enabled;
}
}
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