This page describes an older version of the product. The latest stable version is 14.5.

User Defined Metrics


In addition to the metrics shipped with the product, users are free to define additional metrics for application-specific data using the @ServiceMetric annotation. For example, suppose we have a FooService class which processes some application-specific requests, and we want to measure the number of processed requests:

public class FooService {

    private final AtomicInteger processedRequests = new AtomicInteger();

    public void processRequest(Object request) {
        // TODO: Process request
        processedRequests.incrementAndGet();
    }

    @ServiceMetric(name="processed-requests")
    public int getProcessedRequests() {
        return processedRequests.get();
    }
}

To activate the metric the service needs to be acknowledged as a bean, for example, using the pu.xml:

<beans xmlns="http://www.springframework.org/schema/beans">
                                          
    <bean id="FooService" class="com.gigaspaces.demo.FooService" />

</beans>

The metric name provided in the annotation is automatically prefixed with pu_ and reported with the processing unit tags, as explained here.