org.butterfaces.handler.ButterFacesResourceHandler Maven / Gradle / Ivy

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There is a newer version: 3.5.0

package org.butterfaces.handler;

import javax.faces.application.Resource;
import javax.faces.application.ResourceHandler;
import javax.faces.application.ResourceHandlerWrapper;

/**
 * Adds a timestamp parameter to each (javascript and css) resource if resource handler is enabled. Resource browser
 * cache will be ignored on this resources until server will be redeployed. In case of this manual browser cache delete
 * is no longer needed.
 * Usage:
 * Add following code to your faces-config.xml
 * {@code org.butterfaces.handler.ButterFacesResourceHandler}
 */
public class ButterFacesResourceHandler extends ResourceHandlerWrapper {

    private ResourceHandler wrapped;

    public ButterFacesResourceHandler(ResourceHandler wrapped) {
        this.wrapped = wrapped;
    }

    @Override
    public ResourceHandler getWrapped() {
        return this.wrapped;
    }

    @Override
    public Resource createResource(String resourceName, String libraryName) {
        final Resource resource = super.createResource(resourceName, libraryName);

        // here a check of library name could be necessary, etc.
        if (libraryName.startsWith("butterfaces")) {
            return new ButterFacesResource(resource);
        }

        return resource;
    }
}