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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal.gwt.server;
import java.io.Serializable;
/**
* Times the handling of requests and stores the information as an attribute in
* the request. The timing info is later passed on to the client in the UIDL and
* the client provides JavaScript API for accessing this data from e.g.
* TestBench.
*
* @author Jonatan Kronqvist / Vaadin Ltd
*/
public class RequestTimer implements Serializable {
private long requestStartTime = 0;
/**
* Starts the timing of a request. This should be called before any
* processing of the request.
*/
public void start() {
requestStartTime = System.nanoTime();
}
/**
* Stops the timing of a request. This should be called when all processing
* of a request has finished.
*
* @param context
*/
public void stop(AbstractWebApplicationContext context) {
// Measure and store the total handling time. This data can be
// used in TestBench 3 tests.
long time = (System.nanoTime() - requestStartTime) / 1000000;
// The timings must be stored in the context, since a new
// RequestTimer is created for every request.
context.setLastRequestTime(time);
}
}
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