/**
* 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.groovyscript.text;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
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;
/**
* Created by The eXo Platform SAS Author : tam.nguyen tamndrok@gmail.com Mar 17, 2009
*/
@Managed
@ManagedDescription("Template statistic service")
@NameTemplate({ @Property(key = "view", value = "portal"), @Property(key = "service", value = "statistic"),
@Property(key = "type", value = "template") })
@RESTEndpoint(path = "templatestatistics")
public class TemplateStatisticService {
final Map<String, TemplateStatistic> apps = new ConcurrentHashMap<String, TemplateStatistic>();
private final String ASC = "ASC";
private final String DESC = "DESC";
public TemplateStatisticService() {
}
public TemplateStatistic findTemplateStatistic(String name) {
if (name == null || name.length() == 0) {
throw new IllegalArgumentException("Parameter 'templateid' is required.");
} else {
TemplateStatistic 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 template with templateid '"+ safeName +"'.");
} else {
return result;
}
}
}
/*
* get TemplateStatistic by name, if TemplateStatistic isn't exits, create a new one.
*/
public TemplateStatistic getTemplateStatistic(String name) {
TemplateStatistic app = apps.get(name);
if (app == null) {
app = new TemplateStatistic(name);
apps.put(name, app);
}
return app;
}
/*
* returns a list of templateId sorted alphabetically
*/
@Managed
@ManagedDescription("The list of template identifiers sorted alphabetically")
public String[] getTemplateList() {
List<Map.Entry<String, TemplateStatistic>> list = new LinkedList<Map.Entry<String, TemplateStatistic>>(apps.entrySet());
String[] app = new String[list.size()];
int index = 0;
for (Iterator<Entry<String, TemplateStatistic>> it = list.iterator(); it.hasNext();) {
Map.Entry<String, TemplateStatistic> entry = it.next();
app[index] = entry.getKey();
index++;
}
return app;
}
/*
* return max time of an specify template
*/
@Managed
@ManagedDescription("The maximum rendering time of a specified template in seconds")
@Impact(ImpactType.READ)
public double getMaxTime(@ManagedDescription("The template id") @ManagedName("templateId") String name) {
TemplateStatistic app = findTemplateStatistic(name);
return toSeconds(app.getMaxTime());
}
/*
* return min time of an specify template
*/
@Managed
@ManagedDescription("The minimum rendering time of a specified template in seconds")
@Impact(ImpactType.READ)
public double getMinTime(@ManagedDescription("The template id") @ManagedName("templateId") String name) {
TemplateStatistic app = findTemplateStatistic(name);
return toSeconds(app.getMinTime());
}
/*
* return count of an specify template
*/
@Managed
@ManagedDescription("The rendering count of a specified template")
@Impact(ImpactType.READ)
public long getExecutionCount(@ManagedDescription("The template id") @ManagedName("templateId") String name) {
TemplateStatistic app = findTemplateStatistic(name);
return app.executionCount();
}
/*
* return average time of an specify template
*/
@Managed
@ManagedDescription("The average rendering time of a specified template in seconds")
@Impact(ImpactType.READ)
public double getAverageTime(@ManagedDescription("The template id") @ManagedName("templateId") String name) {
TemplateStatistic app = findTemplateStatistic(name);
return toSeconds(app.getAverageTime());
}
/*
* returns 10 slowest template
*/
@Managed
@ManagedDescription("The list of the 10 slowest templates")
public String[] getSlowestTemplates() {
Map<String, Double> application = new HashMap<String, Double>();
for (Map.Entry<String, TemplateStatistic> entry : apps.entrySet()) {
String url = entry.getKey();
application.put(url, getAverageTime(url));
}
return sort(application, DESC);
}
/*
* returns 10 slowest template
*/
@Managed
@ManagedDescription("The list of the 10 most executed templates")
public String[] getMostExecutedTemplates() {
Map<String, Long> application = new HashMap<String, Long>();
for (Map.Entry<String, TemplateStatistic> entry : apps.entrySet()) {
String url = entry.getKey();
application.put(url, getExecutionCount(url));
}
return sort(application, DESC);
}
/*
* returns 10 fastest template
*/
@Managed
@ManagedDescription("The list of the 10 fastest templates")
public String[] getFastestTemplates() {
Map<String, Double> application = new HashMap<String, Double>();
for (Map.Entry<String, TemplateStatistic> entry : apps.entrySet()) {
String url = entry.getKey();
application.put(url, getAverageTime(url));
}
return sort(application, ASC);
}
private <T extends Comparable<T>> String[] sort(Map<String, T> source, final String order) {
String[] app = new String[10];
List<Map.Entry<String, T>> list = new ArrayList<Map.Entry<String, T>>(source.entrySet());
Collections.sort(list, new Comparator<Map.Entry<String, T>>() {
public int compare(Map.Entry<String, T> o1, Map.Entry<String, T> o2) {
T value1 = o1.getValue();
T value2 = o2.getValue();
if (DESC.equals(order)) {
T tmp = value1;
value1 = value2;
value2 = tmp;
}
return value1.compareTo(value2);
}
});
int index = 0;
for (Map.Entry<String, T> entry : list) {
app[index] = entry.getKey();
index++;
if (index >= app.length) {
break;
}
}
return app;
}
private double toSeconds(double value) {
return value == -1 ? -1 : value / 1000D;
}
}