The previous post was incomplete, becaue lack of time. So lets finish. Implementation of DefaultFaceletFactory in mojara jsf2 as well as the whole jsf2 not implies, that DefaultFaceletFactory may be subclassed. The set of changes from 1.x complicate sucj kind of customization - getters for compiler and cache field were removed.
To achive desirable result and substitute the DefaultFaceletFactory with devived class need to make a small dirty hack. First of all create or use any existing reflection util to access the private field in parent class. Second subclass DefaultFaceletFactory with following constructor
public class MultiStoreFaceletFactory extends DefaultFaceletFactory {
/**
* Construct subclass of {@link DefaultFaceletFactory}
* @param root parent to decorate
* @throws IOException in case of error
*/
public MultiStoreFaceletFactory(final FaceletFactory root) throws IOException {
super(
(Compiler) ReflUtil.getFieldValue(DefaultFaceletFactory.class, root, "compiler"),
((DefaultFaceletFactory) root).getResourceResolver(),
-1,
(FaceletCache) ReflUtil.getFieldValue(DefaultFaceletFactory.class, root, "cache") );
// Your code is here
}
// Your code is here
}
<context-param> <param-name>com.sun.faces.faceletFactory</param-name> <param-value>org.yes.cart.web.application.view.MultiStoreFaceletFactory</param-value> </context-param>
1: public class DerivedVelocityLayoutView extends VelocityLayoutView {
2: 3: // skipped
4: 5: private oncurrentMap<String, String> cache;
6: 7: // skipped
8: 9: /**
10: * Default constructor.
11: */
12: public DerivedVelocityLayoutView() {
13: super();14: this.requestHelper = new RequestHelperImpl();
15: this.cache = new MapMaker()
16: .concurrencyLevel(16) 17: .softValues() 18: .expiration(3, TimeUnit.MINUTES) 19: .makeMap(); 20: } 21: 22: // skipped
23: 24: /**
25: * The resulting context contains any mappings from render, plus screen content.
26: * @param velocityContext context.
27: * @throws Exception in case of exception
28: */
29: private void renderScreenContent(final Context velocityContext) throws Exception {
30: 31: if (logger.isDebugEnabled()) {
32: logger.debug("Rendering screen content template [" + getUrl() + "]");
33: } 34: 35: final HttpServletRequest servletRequest = (HttpServletRequest) velocityContext.get("request");
36: final String key = getKey(velocityContext); 37: 38: String renderedPage = cache.get(key);39: if (renderedPage == null) {
40: StringWriter sw = new StringWriter();
41: Template screenContentTemplate = getTemplate(getUrl()); 42: screenContentTemplate.merge(velocityContext, sw); 43: renderedPage = sw.toString();44: if (isCacheAllowed(servletRequest.getRequestURI())) {
45: cache.put(key, renderedPage);46: if (logger.isDebugEnabled()) {
47: logger.debug("Cache miss " + key);
48: } 49: }50: } else {
51: if (logger.isDebugEnabled()) {
52: logger.debug("Cache hit " + key);
53: } 54: }55: // Put rendered content into Velocity context.
56: velocityContext.put(this.screenContentKey, renderedPage);
57: } 58: 59: // skipped
60: 61: } 62: