/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.application;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.exoplatform.management.annotations.Impact;
import org.exoplatform.management.annotations.ImpactType;
import org.exoplatform.management.annotations.Managed;
import org.exoplatform.management.annotations.ManagedDescription;
import org.exoplatform.management.annotations.ManagedName;
import org.exoplatform.management.jmx.annotations.NameTemplate;
import org.exoplatform.management.jmx.annotations.Property;
import org.exoplatform.management.rest.annotations.RESTEndpoint;
import org.picocontainer.Startable;
/**
* @author <a href="mailto:trongtt@gmail.com">Tran The Trong</a>
* @version $Revision$
*/
@Managed
@ManagedDescription("Application statistic service")
@NameTemplate({ @Property(key = "view", value = "portal"), @Property(key = "service", value = "statistic"),
@Property(key = "type", value = "application") })
@RESTEndpoint(path = "applicationstatistic")
public class ApplicationStatisticService implements Startable {
/** . */
private final ConcurrentMap<String, ApplicationStatistic> apps = new ConcurrentHashMap<String, ApplicationStatistic>();
public ApplicationStatisticService() {
}
public ApplicationStatistic findApplicationStatistic(String name) {
if (name == null || name.length() == 0) {
throw new IllegalArgumentException("Parameter 'applicationId' is required.");
} else {
ApplicationStatistic result = apps.get(name);
if (result == null) {
/* Try to prevent a potential XSS */
String safeName = name.replaceAll("[^a-zA-Z0-9_\\-\\./]+", "");
throw new IllegalArgumentException("There is no such application with applicationId '"+ safeName +"'.");
} else {
return result;
}
}
}
/*
* Returns the list of applicationId sorted alphabetically.
*/
@Managed
@ManagedDescription("The list of application identifiers sorted alphabetically")
public String[] getApplicationList() {
List<String> list = new ArrayList<String>(apps.keySet());
Collections.sort(list);
return list.toArray(new String[list.size()]);
}
/*
* get ApplicationStatistic by application id, if it isn't exits, create a new one
*/
public ApplicationStatistic getApplicationStatistic(String appId) {
ApplicationStatistic app = apps.get(appId);
if (app == null) {
app = new ApplicationStatistic(appId);
ApplicationStatistic existing = apps.putIfAbsent(appId, app);
if (existing != null) {
app = existing;
}
}
return app;
}
/*
* return max time of an specify application
*/
@Managed
@ManagedDescription("The maximum execution time of a specified application in seconds")
@Impact(ImpactType.READ)
public double getMaxTime(@ManagedDescription("The application id") @ManagedName("applicationId") String appId) {
ApplicationStatistic app = findApplicationStatistic(appId);
return toSeconds(app.getMaxTime());
}
/*
* return min time of an specify application
*/
@Managed
@ManagedDescription("The minimum execution time of a specified application in seconds")
@Impact(ImpactType.READ)
public double getMinTime(@ManagedDescription("The application id") @ManagedName("applicationId") String appId) {
ApplicationStatistic app = findApplicationStatistic(appId);
return toSeconds(app.getMinTime());
}
/*
* return average time of an specify application
*/
@Managed
@ManagedDescription("Return the average execution time of a specified application in seconds")
@Impact(ImpactType.READ)
public double getAverageTime(@ManagedDescription("The application id") @ManagedName("applicationId") String appId) {
ApplicationStatistic app = findApplicationStatistic(appId);
return toSeconds(app.getAverageTime());
}
/*
* return count of an specify application
*/
@Managed
@ManagedDescription("The execution count of a specified application")
@Impact(ImpactType.READ)
public long getExecutionCount(@ManagedDescription("The application id") @ManagedName("applicationId") String appId) {
ApplicationStatistic app = findApplicationStatistic(appId);
return app.executionCount();
}
/*
* returns 10 slowest applications
*/
@Managed
@ManagedDescription("The list of the 10 slowest applications")
public String[] getSlowestApplications() {
return getApplicationsSortedByAverageTime(true);
}
/*
* returns 10 fastest applications
*/
@Managed
@ManagedDescription("The list of the 10 fastest applications")
public String[] getFastestApplications() {
return getApplicationsSortedByAverageTime(false);
}
private String[] getApplicationsSortedByAverageTime(boolean desc) {
List<ApplicationStatistic> list = new ArrayList<ApplicationStatistic>();
for (ApplicationStatistic app : apps.values()) {
if (app.getAverageTime() > 0) {
list.add(app);
}
}
Collections.sort(list, new Comparator<ApplicationStatistic>() {
public int compare(ApplicationStatistic o1, ApplicationStatistic o2) {
return (int) Math.signum(o1.getAverageTime() - o2.getAverageTime());
}
});
if (desc) {
Collections.reverse(list);
}
List<ApplicationStatistic> sub = list.subList(0, Math.min(list.size(), 10));
return asIds(sub);
}
/*
* returns 10 most executed applications
*/
@Managed
@ManagedDescription("The list of the 10 most executed applications")
public String[] getMostExecutedApplications() {
ArrayList<ApplicationStatistic> list = new ArrayList<ApplicationStatistic>();
for (ApplicationStatistic app : apps.values()) {
if (app.executionCount() > 0) {
list.add(app);
}
}
Collections.sort(list, new Comparator<ApplicationStatistic>() {
public int compare(ApplicationStatistic o1, ApplicationStatistic o2) {
long diff = o1.executionCount() - o2.executionCount();
return diff == 0 ? 0 : diff > 0 ? -1 : 1;
}
});
List<ApplicationStatistic> sub = list.subList(0, Math.min(list.size(), 10));
return asIds(sub);
}
private String[] asIds(List<ApplicationStatistic> list) {
String[] array = new String[list.size()];
for (int i = 0; i < list.size(); i++) {
array[i] = list.get(i).getAppId();
}
return array;
}
private double toSeconds(double value) {
return value == -1 ? -1 : value / 1000D;
}
public void start() {
}
public void stop() {
}
}