/**
* Executes the given task, within a concurrency throttle if configured (through the superclass's
* settings).
*
* <p>Executes urgent tasks (with 'immediate' timeout) directly, bypassing the concurrency
* throttle (if active). All other tasks are subject to throttling.
*
* @see #TIMEOUT_IMMEDIATE
* @see #doExecute(Runnable)
*/
@Override
public void execute(Runnable task, long startTimeout) {
Assert.notNull(task, "Runnable must not be null");
if (isThrottleActive() && startTimeout > TIMEOUT_IMMEDIATE) {
this.concurrencyThrottle.beforeAccess();
doExecute(new ConcurrencyThrottlingRunnable(task));
} else {
doExecute(task);
}
}
public MultipartHttpServletRequest resolveMultipart(final HttpServletRequest request) throws MultipartException {
Assert.notNull(request, "Request must not be null");
if (this.resolveLazily) {
return new DefaultMultipartHttpServletRequest(request) {
protected void initializeMultipart() {
MultipartParsingResult parsingResult = parseRequest(request);
setMultipartFiles(parsingResult.getMultipartFiles());
setMultipartParameters(parsingResult.getMultipartParameters());
}
};
}
else {
MultipartParsingResult parsingResult = parseRequest(request);
return new DefaultMultipartHttpServletRequest(
request, parsingResult.getMultipartFiles(), parsingResult.getMultipartParameters());
}
}
/**
* Find a custom WebApplicationContext for this web application.
*
* @param sc ServletContext to find the web application context for
* @param attrName the name of the ServletContext attribute to look for
* @return the desired WebApplicationContext for this web app, or <code>null</code> if none
*/
public static WebApplicationContext getWebApplicationContext(ServletContext sc, String attrName) {
Assert.notNull(sc, "ServletContext must not be null");
Object attr = sc.getAttribute(attrName);
if (attr == null) {
return DispatchServlet.webApplicationContext;
}
if (attr instanceof RuntimeException) {
throw (RuntimeException) attr;
}
if (attr instanceof Error) {
throw (Error) attr;
}
if (attr instanceof Exception) {
IllegalStateException ex = new IllegalStateException();
ex.initCause((Exception) attr);
throw ex;
}
if (!(attr instanceof WebApplicationContext)) {
throw new IllegalStateException(
"Context attribute is not of type WebApplicationContext: " + attr);
}
return (WebApplicationContext) attr;
}
/**
* Set the {@link JRExporter} implementation <code>Class</code> to use. Throws
* {@link IllegalArgumentException} if the <code>Class</code> doesn't implement
* {@link JRExporter}. Required setting, as it does not have a default.
*/
public void setExporterClass(Class<? extends JRExporter> exporterClass) {
Assert.isAssignable(JRExporter.class, exporterClass);
this.exporterClass = exporterClass;
}
