Learn the basic knowledge and skills of Apache Sirona Incubator framework from scratch
Learn the basic knowledge and skills of Apache Sirona Incubator framework from scratch
The Apache Sirona incubator project is an open source performance monitoring tool to help developers and system administrators monitor and optimize the Java applications.This article will introduce the basic knowledge and use skills of the Apache Sirona framework, and provide some Java code examples to help readers better understand and use the framework.
1. Environmental configuration
Before using Apache Sirona, you first need to configure the Java development environment.Make sure that Java Development Kit (JDK) and Maven tools have been installed.Then, add the following dependencies to the pom.xml file of the Maven project:
<dependency>
<groupId>org.apache.sirona</groupId>
<artifactId>sirona-core</artifactId>
<version>0.4-incubating</version>
</dependency>
2. Monitor data collection
Apache Sirona provides a set of APIs for collecting and monitoring of performance data.The following is a basic example. Demonstration of how to use the Apache Sirona framework to collect the data of the method:
import org.apache.sirona.stopwatches.StopWatch;
public class MyApp {
public static void main(String[] args) {
StopWatch stopWatch = new StopWatch();
stopWatch.start();
// Execute the code that requires monitoring
stopWatch.stop();
System.out.println ("Method execution time:" + Stopwatch.Getelapsettime ());
}
}
In the above example, we first created a Stopwatch object.The start () method is called at the starting position of the code, and the Stop () method is called at the end of the code.Finally, we use the GetelapSedTime () method to obtain the time to perform the time.
3. Data display and analysis
Apache Sirona provides a variety of ways to display the monitoring data collected for analysis and optimization.One option is the web interface of Apache Sirona.Add the following dependencies to the pom.xml file of the Maven project:
<dependency>
<groupId>org.apache.sirona</groupId>
<artifactId>sirona-web</artifactId>
<version>0.4-incubating</version>
</dependency>
Then, add the following configuration to the web.xml file:
<servlet>
<servlet-name>sirona-web</servlet-name>
<servlet-class>org.apache.sirona.web.SironaJsfServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>sirona-web</servlet-name>
<url-pattern>/sirona/*</url-pattern>
</servlet-mapping>
Run the project and access "http:// localhost: 8080/SIRONA", which will display a user -friendly web interface to display the monitoring data collected.
4. Custom monitoring
In addition to the default monitoring data, Apache Sirona also allows users to customize the collection of monitoring data.The following is an example. Demonstration of how to use a custom count to monitor the number of times the method is called:
import org.apache.sirona.counters.Counter;
public class MyService {
private Counter counter = new Counter();
public void methodToMonitor() {
// How to monitor the way to execute
counter.inc();
}
public int getMethodInvocationCount() {
return counter.getHits();
}
}
In the above example, we first created a counter object.Then, the counter.inc () method is called in the method that needs to be monitored to call the number of times in the statistical method.Finally, we can use the counter.getHits () method to obtain the number of calls.
Through these basic knowledge and skills, readers can start learning and using the Apache Sirona framework to help them better monitor and optimize the performance of Java applications.
